dixell ichill IC260L, ichill IC281L, ichill IC261L, ichill IC280L User Manual

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IC200L Series

User manual

dIXEL

INDEX

1 GENERAL ADVICE 7

2 GENERAL FEATURES 8

2.1 MAIN FUNCTION 8

3 IC200 L TABLE OF THE FEATURES 10

4 USER INTERFACE 11

4.1 FUNCTION OF THE LEDS OF THE KEY BUTTONS 11

4.2 USE OF THE LED ON THE MODELS VI620 - VI620S REMOTE PANELS 13

4.3 USE OF THE LED ON THE MODELS VI820 - VI820S REMOTE PANELS 13

4.4 KEY FUNCTION 14

4.5 KEY COMBINANTION 15

4.6 LED AND ICONS 15

4.7 DISPLAY AND ICONS 16

4.8 MEANING/ FUNCTIONNING OF THE BOTTOM DISPLAY LED 17

5 REMOTE TERMINAL 17

6 FIRST INSTALLING 17

6.1 ON BOARD CLOCK (OPTIONAL) 17

6.2 RTC SETUP 17

7 WIRING CONNECTIONS 18

7.1 HARDWARE RESOURCES FOR IC260L - IC280L MODELS 18

7.2 HARDWARE RESOURCES FOR IC261L - IC281L MODELS 18

7.3 ANALOG INPUTS NTC – PTC PROBES 19

7.4 DIGITAL INPUTS 19

7.5 ANALOG INPUT FOR PRESSURE TRANSDUCER PP30 (4 ÷ 20MA SIGNAL) 19

7.6 ANALOG INPUT FOR PRESSURE RATIOMETRIC TRANSDUCER PPR30 (0 ÷ 5V SIGNAL) 20

7.7 PWM OUTPUT FOR CONDENSING FAN SPEED CONTROL 20

7.8 FAN CONDENSING CONTROL: 0 ÷ 10VDC OUTPUTS 21

7.9 FAN CONDENSING CONTROL WITH 4÷20MA OUTPUT 21

7.10 PROPORTIONAL OUTPUTS 0 ÷ 10V DUMPER CONTROL 22

7.11 PROPORTIONAL OUTPUTS CONFIGURED FOR AUX RELAY CONTROL 22

7.12 HOT KEY 64 CONNECTION 23

7.13 XJ485 CONNECTION 23

7.14 REMOTE PANELS VI620 – VI820 24

8 ANALOG AND DIGITAL OUTPUT CONFIGURATION 24

8.1 ANALOG INPUT PB1 - PB2 - PB7 - PB8 - PB9 - PB10 24

8.2 ANALOG INPUT CONFIGURATION PB3 - PB4 - PB5 - PB6 25

8.3 DIGITAL INPUT CONFIGURATION ID1 – ID18 25

8.4 DIGITAL OUTPUT (RELAY) CONFIGURATION RL1- RL14 26

8.5 CONDENSER PROPORTIONAL CONTROL CONFIGURATION (2 OUTPUTS) 27

8.6 PROPORTIONAL OUTPUT CONFIGURATION 0 ÷ 10 VDC (4 OUTPUTS) 27

8.7 OTHER OUTPUTS 27

9 TABLE OF THE PARAMETERS 28

10 PROGRAMMING WITH THE “HOT KEY 64” 42

10.1 DOWNLOAD: HOW TO PROGRAM AN INSTRUMENT WITH A PROGRAMMED “HOT KEY” 42

10.2 UPLOAD: HOW TO PROGRAM A “HOT KEY” WITH THE PARAMETERS OF THE INSTRUMENT 42

11 PROGRAMMING USING THE KEYBOARD 42

11.1 PASSWORD DEFAULT VALUES 42

11.2 ENTER THE PR1 - PR2 - PR3 PROGRAMMING LEVELS 43

11.3 HOW TO CHANGE A PARAMETER VALUE 43

11.4 CHANGE THE PASSWORD VALUE 43

11.5 ENTER THE PROGRAMMING LEVEL PR1 43

11.6 ENTER THE PROGRAMMING LEVEL PR2 44

11.7 ENTER THE PROGRAMMING LEVEL PR3 44

11.8 MOVE A PARAMETER LEVEL FROM PR2 TO PR1 45

11.9 MOVE A PARAMETER FROM PR3 TO PR2 TO PR1 45

11.10 VISIBILITY AND PARAMETER VALUE LOCKED 45

11.11 PROGRAMMING: DIGITAL INPUT AND OUTPUT POLARITY 45

11.12 CHANGE THE POLARITY OF THE DIGITAL INPUTS-OUTPUTS 46

12 SELECTION AND START OF THE RUNNING MODE 46

12.1 SELECT THE CHILLER OR THE HEAT PUMP MODE 46

12.2 CHANGE OVER 46

12.3 CHILLER – HEAT PUMP FUNCTIONING MODE 47

12.4 KEYBOARD SELECTION 47

12.5 ANALOG INPUT SELECTION 47

13 UNIT START- STOP 47

13.1 START – STOP AND STAND- BY FROM KEYBOARD 47

13.2 UNIT START- STOP FROM DIGITAL INPUT 47

14 DISPLAY LAYOUT 48

14.1 HOW TO SHOW THE MEASUREMENT LIST. 48

14.2 SHOW THE CIRCUIT 1 OR 2 48

15 CUSTOM DISPLAY 48

15.1 DEFAULT READ - OUT OF THE TOP DISPLAY 48

15.2 DEFAULT READ - OUT OF THE BOTTOM DISPLAY 50

15.3 FORCED READ - OUT OF THE TOP AND BOTTOM DISPLAY 50

15.4 DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S 51

15.5 DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S 51

16 DISPLAY INFORMATION 51

16.1 SHOW THE SET POINT VALUE 51

16.2 MODIFY THE SET POINT 51

16.3 SHOW THE ACTIVE SETPOINT DURING ENERGY SAVING OR DYNAMIC SETPOINT 51

16.4 DISPLAY IN REMOTE OFF 52

16.5 DISPLAY IN MOTOCONDENSING CONFIGURATION 52

17 FUNCTION MENU “ M” KEY 52

17.1 ALARM LIST: SHOW AND RESET 52

17.2 COMPRESSOR OVERLOAD ALARM RESET 52

17.3 COMPRESSOR OVERLOAD PASSWORD. 53

17.4 ALARM LOG LIST 53

17.5 ERASE THE ALARM LOG LIST 53

17.6 PASSWORD VALUE OF THE ALARM LIST 53

17.7 DISABLE – ENABLE A SINGLE CIRCUIT 53

17.8 READ-OUT OF A CIRCUIT NOT ENABLED 53

17.9 ENABLE OR DISABLE A SINGLE COMPRESSOR 53

17.10 READ-OUT OF A COMPRESSOR NOT ENABLED 54

17.11 READ-OUT OF THE COMPRESSOR DISCHARGE TEMPERATURE PROBE 54

17.12 READ-OUT OF THE RUNNING HOURS 54

17.13 RESET THE RUNNING HOUR 54

17.14 READ-OUT OF THE COMPRESSOR STARTS-UP 54

17.15 RESET THE STARTS-UP NUMBER 54

17.16 READ-OUT OF THE PROPORTIONAL OUTPUT PERCENTAGE OF THE CONDENSER FAN CONTROL 55

17.17 READ-OUT OF THE FOUR PROPORTIONAL OUTPUT 55

17.18 READ-OUT OF THE TIME COUNTING TO THE NEXT DEFROST 55

17.19 READ-OUT OF THE PROBES CONFIGURED TO CONTROL AN AUXILIARY OUTPUT RELAY 55

17.20 HOW TO DISPLAY THE TEMPAERATURE OF THE INTERNAL TEMPERAURE SENSOR OF THE REMOTE

TERMINALS 1 OR 2 55

18 ENERGY SAVING 56

18.1 ENERGY SAVING FROM DIGITAL INPUT 56

18.2 ENERGY SAVING TIME TABLE WITH RTC 56

18.3 RTC DAILY TIME TABLE PROGRAMMING 56

18.4 ENERGY SAVING OR UNIT ON/OFF ACTIVATION WITH RTC PROGRAMMING 56

19 DYNAMIC SETPOINT 57

19.1 DYNAMIC SETPOINT GRAPH 58

20 AUXILIARY RELAYS 59

20.1 AUXILIARY RELAY WITH DIRECT ACTION 59

20.2 AUXILIARY RELAY WITH INVERSE ACTION 59

21 COMPRESSOR THERMOREGULATION 59

21.1 THERMOREGULATION PARAMETER DESCRIPTION 59

22 SELECTION OF THE KIND OF THERMOREGULATION 60

22.1 GRAPH OF THE COMPRESSOR THERMOREGULATION IN CHILLER 60

22.2 GRAPH OF THE COMPRESSOR THERMOREGULATION IN HEAT PUMP 61

22.3 GRAPH NEUTRAL ZONE COMPRESSOR CONTROL 61

22.4 GRAPH PROPORTIONAL INTEGRAL COMPRESSOR REGULATION CONTROL 61

23 THERMOREGULATION OF THE ANTI FREEZE, INTEGRATION HEATING

OR BOILER 61

23.1 THERMOREGULATION OF THE HEATERS IN CHILLER 61

23.2 THERMOREGULATION OF THE HEATERS IN HEAT PUMP 61

23.3 THERMOREGULATION OF THE SUPPORT HEATERS FOR AIR/AIR UNIT 62

23.4 CONDENSER ANTI-FREEZE HEATERS REGULATION 62

23.5 THE THERMOREGULATION OF THE ANTI-FREEZE HEATERS OF THE CONDENSER/RECOVERY 62

23.6 GRAPH OF THE ANTI-FREEZE- INTEGRATION HEATING - BOILER HEATER RELAYS 63

23.7 BOILER THERMOREGULATION(ANTIFREEZE), BOILER FUNCTION 63

24 ANTI - FREEZE ALARM AND HEATERS REGULATION THROUGH

DIGITAL INPUT 63

25 THERMOREGULATION AND COMPRESSORS ROTATION 63

26 SATURATION - CIRCUIT BALANCING 64

27 COMPRESSORS 64

27.1 COMPRESSORS START- UP 64

27.2 DIRECT START- UP 64

27.3 DIRECT START- UP OF A CAPACITY COMPRESSOR 65

27.4 PART WINDING 65

27.5 COMPRESSOR START- UP WITH PART WINDING 65

27.6 PART WINDING START- UP OF COMPRESSORS OR CAPACITY COMPRESSORS 65

27.7 STAR - DELTA START 65

27.8 STAR - DELTA START OF A COMPRESSOR 66

27.9 STAR - DELTA START- UP OF A CAPACITY COMPRESSOR 66

28 CAPACITY CONTROL 66

28.1 MINIMUM LOAD START- UP 67

28.2 BY- PASS GAS VALVE DURING COMPRESSOR START- UP 68

28.3 SOLENOID VALVE INTERMITTENT FOR SCREW COMPRESSOR 68

29 PUMP DOWN 68

29.1 OFF UNIT WITH PUMP DOWN AND WITH LOW PRESSURE SWITCH CONTROL 68

29.2 PUMP DOWN WITH DEDICATED PRESSURE SWITCH 68

29.3 PUMP DOWN FUNCTION WITH DEDICATED PRESSURE PROBE 69

29.4 PUMP DOWN ALARM DURING COMPRESSORS START- UP 69

29.5 PUMP DOWN ALARM DURING COMPRESSORS SWITCHING OFF 70

29.6 PUMP DOWN INFORMATION 70

30 UNLOADING 70

30.1 HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET 70

30.2 UNLOADING DESCRIPTION 70

30.3 UNLOADING INFORMATION 70

30.4 UNLOADING WITH PRESSURE, CONDENSING TEMPERATURE OR EVAPORATING PRESSURE CONTROL 71

30.5 REGULATION 71

30.6 OTHER INFORMATION ABOUT THE UNLOADING IN CHILLER 71

30.7 OTHER INFORMATION ABOUT THE UNLOADING IN HEAT PUMP 71

31 SOLENOID VALVE FOR LIQUID INJECTION 71

31.1 FUNCTIONNING 71

32 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN 72

32.1 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN (AIR/AIR) 72

32.2 HOT START ( SUPPLY FAN) ONLY FOR AIR / AIR UNIT IN HEAT PUMP MODE 72

33 EVAPORATOR PUMP GROUP 72

33.1 EVAPORATOR WATER PUMP ROTATION 72

33.2 EVAPORATOR WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL 72

33.3 HOT START 73

34 WATER PUMP OF THE CONDENSER 73

34.1 CONDENSER WATER PUMP CONTROL 73

35 PUMP GROUP OF THE CONDENSER 73

35.1 CONDENSER WATER PUMP ROTATION 73

35.2 CONDENSER WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL 73

36 LOAD MAINTENANCE 74

36.1 COMPRESSOR MAINTENANCE RESQUESTS 74

37 CONDENSER FAN REGULATION 74

37.1 OUTPUT STEP RELE’ CONDENSER FAN 75

37.2 PWM OUTPUT FOR FAN CONTROL 75

37.3 CONDENSING UNIT: COMMON OR SEPARATE 75

37.4 GRAPH: PROPORZIONAL REGULATION OF CONDENSER FANS 75

37.5 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN CHILLER MODE 77

37.6 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN HEAT PUMP MODE 77

38 DEFROST CYCLE 77

38.1 FORCED DEFROST 77

38.2 COMBINED DEFROST 77

38.3 MANUAL DEFROST 78

38.4 DEFROST START CONDITION WITH TWO CIRCUIT UNIT 78

38.5 END OF THE DEFROST IN A TWO CIRCUITS WITH ONE CONDENSING FAN CONTROL UNIT 78

38.6 AUTOMATIC DEFROST PROCEDURE 78

38.7 OTHER INFORMATION ABOUT THE DEFROST 79

38.8 DEFROST PARAMETER DESCRIPTION 79

39 RECOVERY 81

39.1 UNIT WITH TWO SEPARATE HYDRAULIC CIRCUITS 81

39.2 UNIT WITH TWO HYDRAULIC CIRCUIT WORKING IN PARALLEL 82

40 CONDENSER TEMPERAURE / PRESSURE CONDITION TO

ENABLE/DISABLE THE RECOVERY CYCLE 82

40.1 RECOVERY DISABLED 82

40.2 RECOVERY ENABLED 83

40.3 NOTE ABOUT RECOVERY ENABLED/DISABLED 83

41 MESSAGES - ALARM CODES 83

41.1 AP1 - AP2 - AP3 - AP4 - AP5 - AP6 - AP7 - AP8 - AP9 - AP10 - AP11 - AP12 PROBE FAILURE 83

41.2 AEFL: EVAPORATOR FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH) 83

41.3 ACFL: CONDENSER FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH) 83

41.4 ATSF: OVERLOAD ALARM OF THE SUPPLY FAN 84

41.5 ATE1 - ATE2 EVAPORATOR PUMP OVERLOAD ALARM 84

41.6 ATC1 - ATC2 CONDENSER/RECOVERY PUMP OVERLOAD ALARM 84

41.7 AEE EEPROM ALARM 84

41.8 AFR: POWER SUPPLY FREQUENCY ALARM 85

41.9 ALOC: GENERIC ALARM WITH STOP REGULATION 85

41.10 ACF1 - ACF2 - ACF3 - ACF4 - ACF5 - ACF6 - ACF7 - ACF8 - ACF9 CONFIGURATION ALARM OF THE UNIT 85

41.11 ARTF CLOCK FAILURE 86

41.12 ARTC CLOCK ALARM 87

41.13 AEUN: UNLOADING ALARM FROM HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET 87

41.14 ALTI: LOW AIR AMBIENT TEMPERATURE (AIR / AIR UNIT ONLY) 87

41.15 AEP1 - AEP2 EVAPORATOR PUMPS / SUPPLY FAN MAINTENANCE REQUEST 87

41.16 ACP1 - ACP12 CONDENSER PUMPS MAINTENANCE REQUEST 87

41.17 B1HP - B2HP HIGH PRESSURE SWITCH CIRCUIT 1 AND 2 88

41.18 B1LP - B2LP LOW TEMPERATURE / LOW CONDENSING PRESSURE OF THE CIRCUIT 88

41.19 B1AC - B2AC - B1AC - B2AC ANTIFREEZE ALARM / LOW OUTLET TEMPERATURE (AIR / AIR UNIT IN CHILLER

MODE) 88

41.20 B1AH - B2AH ANTI-FREEZE ALARM / LOW OUTLET AIR TEMPERAURE(AIR/AIR UNIT ONLY) ON HEAT PUMP

MODE 88

41.21 B1HP - B2HP HIGH PRESSURE / CONDENSING HIGH TEMPERATURE OF THE CIRCUIT 89

41.22 B1LP - B2LP LOW PRESSURE SWITCH CIRCUIT #1 OR 2 89

41.23 B1LP - B2LP LOW EVAPORATING PRESSURE OF THE CIRCUIT (WITH PRESSURE TRANSDUCERS ONLY) 89

41.24 B1TF- B2TF CONDENSER FAN OVERLOAD ALARM 90

41.25 C1HP - C2HP - C3HP - C4HP - C5HP - C6HP COMPRESSOR HIGH PRESSURE ALARMS 90

41.26 C1OP - C2OP - C3OP - C4OP - C5OP - C6OP - PRESSURE SWITCH ALARM / COMPRESSOR OIL 90

41.27 C1DT - C2DT - C3DT - C4DT - C5DT - C6DT HIGH COMPRESSOR DISCHARGE TEMPERATURE ALARM 90

41.28 C1TR - C2TR - C3TR - C4TR - C5TR - C6TR COMPRESSOR OVERLOAD ALARM 90

41.29 B1DF – B2DF DEFROST ALARM 91

41.30 B1CU – B2CU UNLOADING DISABLED FROM HIGH CONDENSING TEMPERATURE / PRESSURE IN CHILLER 91

41.31 B1CU – B2CU: UNLOADING FROM LOW CONDENSING TEMPERATURE / PRESSURE IN HEAT PUMP 91

41.32 B1RC – B2RC RECOVERY DISABLED FROM HIGH CONDENSING TEMPERATURE/PRESSURE IN CHILLER 91

41.33 B1PH - B2PH: PUMP DOWN STOP ALARM FROM PRESSURE SWITCH / LOW PRESSURE SWITCH 92

41.34 B1PL - B2PL ALARM DURING THE PUMP DOWN START-UP FROM PUMP DOWN PRESSURE SWITCH / LOW

PRESSURE TRANSDUCER 92

41.35 C1MN - C2MN - C3MN - C4MN - C5MN - C6MN COMPRESSOR MAINTENANCE 92

41.36 AEP1 - AEP2 PUMP/ SUPPLY FAN MAINTENANCE 92

41.37 ACP1 - ACP1 CONDENSER PUMP MINTENANCE 93

41.38 ALARM RELAY AND BUZZER 93

41.39 KEYABOARD ALARM 93

42 AUTOMATIC TO MANUAL ALARM PROCEDURE 93

43 TABLE OF THE OUTPUT STATUS IN ALARM CONDITION 94

43.1 ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF 94

43.2 ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF 95

43.3 ALARM: “A” TYPE AND CORRESPONDING COMPRESSOR OUTPUT OFF 96

44 BLACK-OUT 97

45 INSTALLING AND MOUNTING 97

45.1 PANEL CUT- OUT 97

45.2 PLEXIGLASS PROTECTION BOTTOM OPEN 97

45.3 PLEXIGLASS PROTECTION TOP OPEN 97

45.4 METAL FRONT FRAME 98

45.5 VERTICAL BOARDS VI620 – VI820 PANEL CUT-OUT 98

46 ELECTRICAL CONNECTIONS 99

47 ACCESSORIES 99

47.1 MONOPHASE FAN CONTROL: 230VAC AND CUT PHASE CONTROL 99

47.2 INVERTER: MICROFAN 380VAC UP TO 4KW OR 8KW 100

47.3 TRANSFORMER 100

48 TECHNICAL DATA 101

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

1 GENERAL ADVICE

• 1.1 PLEASE READ BEFORE USING THIS MANUAL

• · This manual is part of the product and should be kept near the

• instrument for easy and quick reference.

• · The instrument shall not be used for purposes different from those

• described hereunder. It cannot be used as a safety device.

• · Check the application limits before proceeding.

• 1.2 SAFETY PRECAUTIONS

• · Check the supply voltage is correct before connecting the instrument.

• · Do not expose to water or moisture: use the controller only within the

• operating limits avoiding sudden temperature changes with high

• atmospheric humidity to prevent formation of condensation

• · Warning: disconnect all electrical connections before any kind of

• maintenance.

• · The instrument must not be opened.

• · In case of failure or faulty operation send the instrument back to the

• distributor or to “Dixell s.r.l.” (see address) with a detailed description of

• the fault.

• · Consider the maximum current which can be applied to each relay (see

• Technical Data).

• Ensure that the wires for probes, loads and the power supply are separated

• and far enough from each other, without crossing or intertwining.

• · Fit the probe where it is not accessible by the end user.

• · In case of applications in industrial environments, the use of mains

• filters (our mod. FT1) in parallel with inductive loads could be useful.

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2 GENERAL FEATURES

iCHILL IC200L is an electronic controller for chiller unit applications having one or two circuits:

• Air/air

• Air/water

• Water/water

• Motocondensing

Additional features :

• Heat pump with gas reversibility

• Free cooling function

• Recovery function

2.1 MAIN FUNCTION

Chiller management:

• One circuit up to 4 compressors

• Two circuits with different compressor number per circuit

• Double circuit up to 6 compressors

• Screw compressors

Compressor start up:

• Direct

• Part winding

• Star - delta

Compressor Soft start:

• With step valve

• Automatic start-unloading (without load).

• External by-pass gas valve.

Capacity step control:

• Continuous control

• Step control

• Modulation control (screw compressors)

Thermoregulation of the compressors

• Time running hours

• Number of start-up per hour

Cooling liquid injection

• With dedicated PTC probe

High temperature alarm of the compressor discharge side

• With dedicated PTC probe Complete management of two pump groups of the water side

• 2 pumps evaporator side

• 2 pumps condenser side

Display layout customizable

• Temperature

• Pressure

• Time / RTC in real time

Other display readings

• Safety digital inputs

• Compressors running hours

• Number of compressor start-up

• Pump running hours

• Delay counting to the next defrost

• Proportional output percentage status

• Compressors discharge temperature

Alarm reset with custom password

• Alarm list

• Compressor thermal protection alarm

Single circuit stand-by

• Circuit maintenance

• To work with only one circuit

Single compressor stand-by

• Compressor maintenance

• Compressor malfunction

Pump down management

• With dedicated pressure switch

• Low pressure switch

• Low pressure transducer

Unloading circuit

• High temperature of the evaporator inlet water

• High temperature of the condenser inlet water (unit with recovery)

• High condensing pressure

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

• Low evaporating pressure

Maintenance messages

• Compressors

• Evaporator pumps

• Condenser pumps

Auxiliary relays

• Two configurable relay outputs not depending from the control algorithm can be managed through NTC, PTC or pressure probes.

Weekly Energy saving

• Three different time bands per day (only with RTC onboard)

• From digital input

Weekly ON/OFF:

• Three different time bands per day (only with RTC onboard)

Dynamic setpoint:

• Determined by analogue NTC input or 4÷20mA current input.

Change over :

• Automatic chiller or heat pump functioning depending from NTC analogue input.

Remote OFF:

• From configurable digital input.

Remote change over:

• From configurable digital input.

Hot start :

• Air / air unit

Defrost management:

• Combined control with temperature and pressure

• Forced defrost with low temperature of external air

• From configurable digital input

• Manual from keyboard

Boiler:

• For electrical integration heating or anti-freeze heaters

Two proportional outputs for condensing fan speed control (inverter or phase cut) with configurable signal:

• PWM

• 0÷10Volt

• 4÷20mA

Four proportional control outputs 0÷10V or ON/OFF

• To control the dumper in free cooling or recovery

• To control an external relay

Complete alarm management

• Internal Data logger up to 100 events

Supervisor / tele assistance/ monitoring

• TTL output for XJ485 interface (Mod #Bus protocol) for XWEB300 / XWEB3000 Dixell monitoring system for local and remote

control

Up to 2 remote terminals with display read-out customizable

• With NTC ambient temperature probe

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3 IC200 L TABLE OF THE FEATURES

IC260L IC261L IC280L IC281L FEATURES

CHILLER WITH HEAT PUMP

CHILLER WITH HEAT PUMP,

FREE COOLING AND HEATING

RECOVERY

FRONTPANEL KEY BUTTONS

n n

OUTPUT RELAYS

DIGITAL INPUTS

18 configurable configurable configurable configurable

PROBE INPUTS

10 NTC - PTC - 4÷20mA - 0 ÷ 5Volt configurable configurable configurable configurable

PROPORTIONAL OUTPUTS

Two PWM outputs for condensing fan

n n n n

Two 0÷10V o 4÷20mA for condensing fan configurable configurable configurable configurable

Four 0÷10V outputs for Free cooling and Heating recovery, or to drive an external relay

configurable configurable configurable configurable

OTHER OUTPUTS

TTL / RS – 485 with Mod-Bus-Rtu protocol

n n n n

Output for remote keyboard VI620 (up to 2 boards together)

n n

Output for remote keyboard VI820 (up to 2 boards together)

n n

POWER SUPPLY

12 Vac/dc (+15%;-10%)

n n n n

24 Vac/dc (± 10%) opt opt opt opt

TOP DISPLAY

± 3 led with decimal point

n n n n

BOTTOM DISPLAY

± 4 led with decimal point

n n n n

OTHERS

Internal RTC opt opt opt opt

Buzzer opt opt opt opt

 configurable = configurable through parameter  opt = optional

 n = default

 free cooling (IC280L / IC281L only )  Heating recovery (IC280L / IC281L only )

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

4 USER INTERFACE

4.1 FUNCTION OF THE LEDS OF THE KEY BUTTONS

Use of the led on the IC260L / IC261L models

Use of the led on the IC260L / IC261L metal models

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Use of the led on the models IC280L / IC281L

Use of the led on the metal models IC280L / IC281L

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

4.2 USE OF THE LED ON THE MODELS VI620 - VI620S REMOTE PANELS

4.3 USE OF THE LED ON THE MODELS VI820 - VI820S REMOTE PANELS

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4.4 KEY FUNCTION

KEY ACTION FUNCTION

Push and release Show chiller set point SetC and heat pump SetH

Push once

In chiller or heat pump if the Energy saving or the Dynamic setpoint are enabled it shows the real setpoint Setr, the led is

blinking. Push for 3 seconds the release Change between chiller / heat pump During the programming: push one time Select a parameter or confirm a value

Push once with probe label showed on the bottom display

Change between the read-out of the circuit 1 and the circuit 2 and

viceversa

Push once Select the readings of the first circuit Pushing once during the programming To change the parameter code or value

UP KEY

Push for 1 second during the programming

1 time shows the Pr2 programming level

2 time shows the Pr3 programming level

Push once Select the readings of the second circuit

TASTO DOWN

Pushing one time during the programming To change the parameter code or value

Push once

Turn the chiller on, if the unit is on led is on

The led is blinking if there is a power on delay or during the pump

down

Push once

Turn the heat pump on, if the unit is on led is on

The led is blinking if there is a power on delay or during the pump

down

Push once enter the function Menu

Push for 3 seconds To set RTC parameters (if the RTC is inside)

Pushing once during the programming To exit from a group of parameter

Push once

Start the heating recovery of the chiller unit, with recovery active

the led is on

Push once

Start the free cooling of chiller unit, with free cooling active the led

is on

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

4.5 KEY COMBINANTION

KEY ACTION FUNCTION

Push for 3 seconds together Enter the programming

In Pr3 level: push SET and the push DOWN key

Select the parameter level visibility Pr1 / Pr2 / Pr3

Push once together Exit the programming

Push 5 seconds (heat pump with ok condition)

Manual defrost

In Pr3 programming level Push SET and then the MENU key

In Pr3 defines if the parameter can be changed or not in the other levels.

4.6 LED AND ICONS

ICON LED FUNCTION

ON Auxiliary relay #1 active

OFF Auxiliary relay #1 not active

ON Auxiliary relay #2 active

OFF Auxiliary relay #2 not active

BLINKING Defrost delay counting active

ON Defrost

OFF Defrost end

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4.7 DISPLAY AND ICONS

ICON MEANING / FUNCTIONNING

Celsius degrees: ON for temperature measurements of probe values or parameters

Fahrenheit degrees: ON for temperature measurements of probe values or parameters

Bar: ON for pressure measurements of probe values, setpoint or parameters

PSI

Psi: ON for pressure measurements of probe values, setpoint or parameters

ON = compressor 1 active Blinking = compressor 1 delay counting

ON = compressor 2 active Blinking = compressor 2 delay counting

ON = compressor 3 active Blinking = compressor 3 delay counting

ON = compressor 4 active Blinking = compressor 4 delay counting

ON = compressor 5 active Blinking = compressor 5 delay counting

ON = compressor 6 active Blinking = compressor 6 delay counting

General alarm: blinking if there is an alarm not identified by an icon

Anti freeze heaters/ integration heating / boiler: ON if the output is on

Flow alarm/ (differential) pressure switch / supply fan thermal (air / air unit) : is blinking if the configuration of the digital input is active

Real time clock: On when the bottom display show the RTC ON during the programming with time based parameter value In function menu indicates the defrost delay counting

Water pump: On if at least one of the four configurable pump group is on

Condenser fan: ON if at least one of the PWM or relay outputs for fan control is active

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

4.8 MEANING/ FUNCTIONNING OF THE BOTTOM DISPLAY LED

Led # 1 – 2 (With RTC)

If the bottom display shows the RTC the 1 and 2 leds are blinking.

Led # 1 – 2 In function Menu

During the time counting to the next defrost for one or both circuits the led 1 and 2 are blinking.

LED Parameter programming

In Pr2 level: led #3 indicates the visibility while the #1 and #2 show if the parameter can be modified or not. In Pr3 level: led #3 and #4 indicate the visibility while the #1 and #2 show if the parameter can be modified or not.

5 REMOTE TERMINAL

The iCHILL can be connected with 2 remote terminals. Each remote terminal can have the NTC probe on board that is used to show the loacl temperature and also to control the temperature regulation. for the connections use shielded cable for a maximum lenght of 150mt. In case of no communication between the instrument and the remotes the upper display shows “noL” (no link). Mod. VI620 - VI620S can be connected to IC260L – IC261L Mod. VI820 - VI820S can be connected to IC280L – IC281L Use the connection cable CAB/CJ30 (2x0.2 mm

) to interface the ichill connector to the shielded wire.

6 FIRST INSTALLING

6.1 ON BOARD CLOCK (OPTIONAL)

Giving power supply the bottom display shows “rtC” alternated with a temperature or pressure value: It is necessary to set the RTC. If the probes are not connected the display shows the corresponding probe alarm messages. In this situation the RTC setup and the programming are available.

ATTENTION The RTC function is an optional and it is not possible to update the instrument but it is necessary to order the instrument already complete of this features.

With power failure the RTC back-up battery maximum duration is 1 week. After this period it is necessary to setup the clock again.

6.2 RTC SETUP

1. Push M key for 3 seconds until the bottom display shows “Hour” and the top display shows its value.

2. Push SET one time: the value is blinking.

3. Use the Up and Down keys to adjust it. Push SET one time to confirm; automatically the display shows next parameter.

4. Repeat the operations 2. 3. and 4. for all the RTC parameters:

- Min: minutes (0÷60)

- UdAy: day of the week (Sun = Sunday, Mon =Monday, tuE =Tuesday, UEd = Wednesday, tHu = Thursday, Fri =Friday, SAt

=Saturday)

- dAy: day of the month (0÷31)

- MntH: month (1÷12)

- yEAr: year (00÷99)

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7 WIRING CONNECTIONS

7.1 HARDWARE RESOURCES FOR IC260L - IC280L MODELS

10 digital outputs (relays) 18 digital inputs (free of voltage) 10 analogue inputs: NTC probes or through configuration 6 NTC / PTC and 4 pressure transducer 4÷20mA or ratio-metric 0÷ 5.0Volt 6 modulating outputs 1 output for remote panel (max 2 remote panels) 1 TTL output for “Hot Key 64” connection or for XJ485, interface module for monitoring system, connection. MAX current on the relay contacts relè 5(2)A 250V - MAX common current 12A 250V

7.2 HARDWARE RESOURCES FOR IC261L - IC281L MODELS

14 digital outputs (relays) 18 digital inputs (free of voltage) 10 analogue inputs: NTC probes or through configuration 6 NTC / PTC and 4 pressure transducer 4÷20mA or ratio-metric 0÷ 5.0Volt 6 modulating outputs 1 output for remote panel (max 2 remote panels) 1 TTL output for “Hot Key 64” connection or for XJ485, interface module for monitoring system, connection. MAX current on the relay contacts relè 5(2)A 250V - MAX common current 12A 250V

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7.3 ANALOG INPUTS NTC – PTC PROBES

PbC = Common terminal

7.4 DIGITAL INPUTS

GND = Common terminal

7.5 ANALOG INPUT FOR PRESSURE TRANSDUCER PP30 (4 ÷ 20MA SIGNAL)

Using 4÷20mA pressure transducer set the Parameter CF07 = 0 / 1

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7.6 ANALOG INPUT FOR PRESSURE RATIOMETRIC TRANSDUCER PPR30 (0 ÷ 5V SIGNAL)

Using 5V ratio-metric pressure transducer set the Parameter CF07 = 2 / 3

7.7 PWM OUTPUT FOR CONDENSING FAN SPEED CONTROL

With only one condensing circuit configured the TF1 / TF2 outputs work together. The PWM signal can control the cut phase controllers for the following mono-phase models: Mod. XV05PK mono-phase , cut phase control 500 Watt (2A) Mod. XV10PK mono-phase , cut phase control 1000 Watt (4A) Mod. XV22PK mono-phase , cut phase control 2200 Watt (9A)

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7.8 FAN CONDENSING CONTROL: 0 ÷ 10VDC OUTPUTS

With only one condensing circuit configured, the Out1 / Out2 outputs work together giving the same signal. With the two 0 – 10V outputs the iCHILL can drive a mono-phase or three-phase controllers (such as the Dixell inverter models XV340GS) up to 8KW.

7.9 FAN CONDENSING CONTROL WITH 4÷20MA OUTPUT

With only one condensing circuit configured, the Out1 / Out2 outputs work together giving the same signal. With the 4..20mA outputs the iCHILL can drive a mono-phase or three-phase controllers (such as the Dixell inverter models XV340GS) up to 8KW.

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7.10 PROPORTIONAL OUTPUTS 0 ÷ 10V DUMPER CONTROL

GND = common

7.11 PROPORTIONAL OUTPUTS CONFIGURED FOR AUX RELAY CONTROL

GND = common By parameter programming is possible to connect a 12 volt, 40mA relay.

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7.12 HOT KEY 64 CONNECTION

The programming HOT KEY 64 allows to upload or download a copy of the parameters of the instrument (see HOT KEY paragraph).

7.13 XJ485 CONNECTION

The XJ485 interface is a converter between the RS485 and the TTL connector output. The RS485 uses two terminals (+) and (-) that must be connected respecting the polarity to build the serial line. Use the CAB/RS02 to connect the XJ485 interface to the TTL connector.

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7.14 REMOTE PANELS VI620 – VI820

The instrument receives up to two remote panels. Using the remote panels provided with the ambient NTC probe the display measurement, and the control can be managed directly by this probe. Use shielded cable for the connection up to 150mt maximum. In case of communication failure the upper display shows “noL” (no link). Use the CAB/CJ30 to interface the ichill connector to the shielded cable.

• Remote panel VI620 for models IC260L – IC261L

• Remote panel VI820 for models 200 L IC280L – IC281L

8 ANALOG AND DIGITAL OUTPUT CONFIGURATION

8.1 ANALOG INPUT PB1 - PB2 - PB7 - PB8 - PB9 - PB10

Parameters involved: CF08 = Configuration PB1 CF09 = Configuration PB2 CF14 = Configuration PB7 CF15 = Configuration PB8 CF16 = Configuration PB9 CF17 = Configuration PB10

0. Not enabled

1. Temperature probe PTC for compressor #1 discharge

2. Temperature probe PTC for compressor #2 discharge

3. Temperature probe PTC for compressor #3 discharge

4. Temperature probe PTC for compressor #4 discharge

5. Temperature probe PTC for compressor #5 discharge

6. Temperature probe PTC for compressor #6 discharge

7. Temperature probe NTC for evaporator inlet

8. Temperature probe NTC for evaporator #1 outlet

9. Temperature probe NTC for evaporator #2 outlet

10. Temperature probe NTC for common evaporator outlet

11. Temperature probe NTC for common hot water condenser / recovery inlet

12. Temperature probe NTC for hot water of the condenser / recovery circuit #1 inlet

13. Temperature probe NTC for hot water of the condenser / recovery circuit #2 inlet

14. Temperature probe NTC for hot water of the condenser / recovery circuit #1 outlet

15. Temperature probe NTC for hot water of the condenser / recovery circuit #2 outlet

16. Temperature probe NTC for hot water of the condenser / recovery common outlet

17. Temperature probe NTC for free cooling water inlet circuit

18. Temperature probe NTC for free cooling external air temperature

19. Temperature probe NTC for dynamic setpoint external air / boiler / change over

20. Temperature probe NTC for combined defrost circuit #1

21. Temperature probe NTC for combined defrost circuit #2

22. Temperature probe NTC for auxiliary output #1

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23. Temperature probe NTC for auxiliary output #2

24. Temperature probe NTC for condensing circuit #1

25. Temperature probe NTC for condensing circuit #22 After the number 25 the display configuration can be selected from o 1 to c62 that allows to set an analogue input as digital input (see polarity of the digital input/outputs).

8.2 ANALOG INPUT CONFIGURATION PB3 - PB4 - PB5 - PB6

Parameter involved: CF10 = Configuration PB3 CF11 = Configuration PB4 CF12 = Configuration PB5 CF13 = Configuration PB6

0 Not enabled 1 Temperature probe PTC for compressor 1 discharge 2 Temperature probe PTC for compressor 2 discharge 3 Temperature probe PTC for compressor 3 discharge 4 Temperature probe PTC for compressor 4 discharge 5 Temperature probe PTC for compressor 5 discharge 6 Temperature probe PTC for compressor 6 discharge 7 Temperature probe NTC for evaporator inlet 8 Temperature probe NTC for evaporator outlet # 1 9 Temperature probe NTC for evaporator outlet # 2 10 Temperature probe NTC for common evaporator outlet 11 Temperature probe NTC for common hot water condenser / recovery inlet 12 Temperature probe NTC for hot water condenser / recovery inlet circuit #1 13 Temperature probe NTC for hot water condenser / recovery inlet circuit #2 14 Temperature probe NTC for hot water condenser / recovery outlet circuit #1 15 Temperature probe NTC for hot water condenser / recovery outlet circuit #2 16 Temperature probe NTC for hot water condenser / recovery common outlet circuit 17 Temperature probe NTC for free cooling water inlet 18 Temperature probe NTC for free cooling external air 19 Temperature probe NTC for external air dynamic setpoint/ boiler / change over 20 Temperature probe NTC for combined defrost circuit #1 21 Temperature probe NTC for free cooling water inlet #2 22 Temperature probe NTC for auxiliary output #1 23 Temperature probe NTC for auxiliary output #2 24 Condenser probe circuit 1 ( temperature NTC / pressure 4÷20 mA / ratio-metric 0÷ 5Volt ) 25 Condenser probe circuit 2 ( temperature NTC / pressure 4÷20 mA / ratio-metric 0÷ 5Volt ) 26 Evaporator pressure probe circuit 1 (pressure 4÷20 mA / ratio-metric 0÷ 5Volt ) 27 Evaporator pressure probe circuit 1 (pressure 4÷20 mA / ratio-metric 0÷ 5Volt ) 28 Auxiliary output 1 pressure probe control (4÷20 mA / ratio-metric 0÷ 5Volt). 29 Auxiliary output 2 pressure probe control (4÷20 mA / ratio-metric 0÷ 5Volt). 30 Dynamic setpoint pressure probe (4÷20 mA) After the number 30 the display read-out goes from “o 1” to “c62” that allows to set an analogue input as digital input (see polarity input of digital inputs).

8.3 DIGITAL INPUT CONFIGURATION ID1 – ID18

Parameters involved: CF36 = Configuration ID1…CF53 = Configuration ID18

0. Not enabled

1. Remote ON / OFF

2. Remote chiller / heat pump

3. Flow switch/ Supply fan overload

4. Flow switch of heated side

5. Antifreeze heater circuit 1

6. Antifreeze heater circuit 2

7. High pressure switch circuit # 1

8. High pressure switch circuit 2

9. Low pressure switch circuit 1

10. Low pressure switch circuit 2

11. Compressor 1 high pressure

12. Compressor 2 high pressure

13. Compressor 3 high pressure

14. Compressor 4 high pressure

15. Compressor 5 high pressure

16. Compressor 6 high pressure

17. Compressor 1 overload

18. Compressor 2 overload

19. Compressor 3 overload

20. Compressor 4 overload

21. Compressor 5 overload

22. Compressor 6 overload

23. Condenser fan overload of circuit 1

24. Condenser fan overload of circuit 2

25. Condenser fan overload of circuit 1 and 2 (comun)

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26. Water pump overload of evaporator 1

27. Water support pump overload of evaporator

28. Water pump overload of condenser 1

29. Water support pump overload of condenser

30. Recovery request for circuit 1

31. Recovery request for circuit 2

32. Defrost end of circuit 1

33. Defrost end of circuit 2

34. Energy Saving

35. Pressure switch / compressor 1 oil

36. Pressure switch / compressor 2 oil

37. Pressure switch / compressor 3 oil

38. Pressure switch / compressor 4 oil

39. Pressure switch / compressor 5 oil

40. Pressure switch / compressor 6 oil

41. Pump down pressure switch of circuit 1

42. Pump down pressure switch of circuit 2

43. Generic alarm from digital input with stop regulation

44. Digital input of thermoregulation request (motocondensing unit)

45. Digital input of cooling request (motocondensing unit)

46. Digital input of heating request (motocondensing unit)

47. Request / partialization 1 of compressor 1 (motocondensing unit)

48. Request / partialization 2 of compressor 1 (motocondensing unit)

49. Request / partialization 3 of compressor 1 (motocondensing unit)

50. Request compressor #2

51. Request / partialization 1 of compressor 2 (motocondensing unit)

52. Request / partialization 2 of compressor 2 (motocondensing unit)

53. Request / partialization 3 of compressor 2 (motocondensing unit)

54. Request compressor #3

55. Request / partialization 1 of compressor 3 (motocondensing unit)

56. Request / partialization 2 of compressor 3 (motocondensing unit)

57. Request / partialization 3 of compressor 3 (motocondensing unit)

58. Request compressor #4

59. Request / partialization 1 of compressor 4 (motocondensing unit)

60. Request / partialization 2 of compressor 4 (motocondensing unit)

61. Request / partialization 3 of compressor 4 (motocondensing unit)

62. Request compressor #5 (motocondensing unit)

63. Request compressor #6(motocondensing unit)

8.4 DIGITAL OUTPUT (RELAY) CONFIGURATION RL1- RL14

Parameter involved: CF54= Configuration RL1…CF67= Configuration RL14

0. Not enabled

1. Alarm

2. Evaporator water pump / Supply fan

3. Support water pump of the evaporator

4. Anti-freeze heater / integration heating / boiler circuit #1

5. Anti-freeze heater / integration heating / boiler circuit #2

6. Water pump of the condenser recovery circuit

7. Support water pump of the condenser recovery circuit

8. 4-way valve for chiller / heat pump inversion of the circuit #1

9. 4-way valve for chiller / heat pump inversion of the circuit #2

10. 1° condenser fan step ON/OFF control of the circuit #1

11. 2° condenser fan step ON/OFF control of the circuit #1

12. 3° condenser fan step ON/OFF control of the circuit #1

13. 4° condenser fan step ON/OFF control of the circuit #1

14. 1° condenser fan step ON/OFF control of the circuit #2

15. 2° condenser fan step ON/OFF control of the circuit #2

16. 3° condenser fan step ON/OFF control of the circuit #2

17. 4° condenser fan step ON/OFF control of the circuit #2

18. Solenoid valve of the pump-down circuit #1

19. Solenoid valve of the pump-down circuit #2

20. Recovery valve circuit #1

21. Recovery valve circuit #2

22. Free cooling ON/OFF valve

23. Auxiliary output circuit #1

24. Auxiliary output circuit #2

25. Solenoid valve Intermittent for screw compressor #1

26. Solenoid valve Intermittent for screw compressor #2

27. Solenoid valve of the liquid injection for compressor #1

28. Solenoid valve of the liquid injection for compressor #2

29. Direct start-up : compressor #1 relay PW start: relay PW #1 of the compressor #1 Star-delta start: relay line #1 of the compressor #1

30. PW start: relay PW #2 of the compressor #1

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Star-delta start: relay linea #2 compressor #1

31. Star centre of the Star-delta start of the compressor 1#

32. Capacity step valve #1 compressor #1

33. Capacity step valve #2 compressor #1

34. Capacity step valve #3 compressor #1

35. By-pass gas valve compressor #1start

36. Direct start: compressor #2 start

PW start: relay #1 of the compressor 2# Star-delta start: relay line #1 of the compressor #2

37. PW start: relay PW #2 of the compressor #2

Star-delta start: relay line #2 of the compressor #2

38. Star centre of the Star-delta start of the compressor #2

39. Capacity step valve #1 compressor #2

40. Capacity step valve #2 compressor #2

41. Capacity step valve #3 compressor #2

42. By-pass gas valve compressor #2 start

43. Direct start: compressor #3 relay

PW start: relay PW #1 of the compressor #3 Star-delta start: relay line #1 of the compressor #3

44. PW start: relay PW #2 of the compressor #3

Star-delta start: relay line #1 of the compressor #3

45. Star centre of the Star-delta start of the compressor #3

46. Capacity step valve #1 compressor #3

47. Capacity step valve #2 compressor #3

48. Capacity step valve #3 compressor #3

49. By-pass gas valve compressor #3 start

50. Direct start: compressor #4 relay PW start: PW#1 of the compressor #4

Star-delta start: relay line #1 of the compressor #4

51. PW start: relay PW #2 of the compressor #4

Star-delta start: relay line#1 of the compressor #4

52. Star centre of the Star-delta start of the compressor #4

53. Capacity step valve #1 of the compressor #4

54. Capacity step valve #2 of the compressor #4

55. Capacity step valve #3 of the compressor #4

56. By-pass gas valve compressor #4 start

57. Compressor #5 relay

58. Compressor #6 relay

8.5 CONDENSER PROPORTIONAL CONTROL CONFIGURATION (2 OUTPUTS)

Proportional outputs used to configure a proportional output signal to condenser fan control

Parameters involved: CF68 = Condenser control configuration for circuit 1 CF69 = Condenser control configuration for circuit 2

0= 0 ÷ 10Vdc (for external mono or three-phase fan control board) 1= 4÷20mA (for external mono or three-phase fan control board) 2= PWM (only for external mono-phase fan control board with cut phase control)

8.6 PROPORTIONAL OUTPUT CONFIGURATION 0 ÷ 10 VDC (4 OUTPUTS)

Parameters involved: CF70 = Proportional output 1 configuration CF71 = Proportional output 2 configuration CF72 = Proportional output 3 configuration CF73 = Proportional output 4 configuration

0 Not enabled 1 Free cooling dumper / mixing valve 2 3-way valve for hot water 3 Dumper for air change 4 Auxiliary output After the read-out number 4 the display goes from the label “o 1” to “c22” (see input/output polarity), that allow to configure the output as digital output to control an external relay.

8.7 OTHER OUTPUTS

Hot key connection

TTL connection Remote keyboard connection

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9 TABLE OF THE PARAMETERS

MENU SELECTION

Label

Description

ALL

Shows all the parameters

Shows only the Thermoregulation parameters

Shows only the Configuration parameters

Shows only the Dynamic Setpoint parameters

Shows only the Energy Saving, RTC parameters

Shows only the compressor parameters

Shows only the Auxiliary Output parameters

Shows only the Fan Control parameters

Shows only the Antifreeze Control parameters

Shows only the Defrost parameters

Shows only the Alarm parameters

Thermoregulation

Parameter Description min max u.m. Resolution ST 1 Chiller Setpoint

Allow to modify the setpoint of the unit in chiller mode

ST02 ST03 °C/°F dec/int

ST 2 Chiller minimum Setpoint

Minimum setpoint limit for ST 1

-30.0

-22

ST01

°C °F

dec/int

ST 3 Chiller maximum Setpoint

Maximum setpoint limit for ST 1

ST01

70.0 158

°C °F

dec/int

ST 4 Heat pump setpoint

Allow to modify the setpoint of the unit in heat pump mode

ST05 ST06 °C/°F dec/int

ST 5 Heat pump minimum Setpoint

Minimum setpoint limit for ST 4

-30.0

-22

ST04

°C °F

Dec

int

ST 6 Heat pump maximum Setpoint

Maximum setpoint limit for ST 4

ST04

70.0 158

°C °F

Dec

int

ST 7 Regulation band in chiller mode 0.0 0 25.0

°C °F

Dec

int

ST 8 Regulation band in chiller heat pump 0.0 0 25.0

°C °F

Dec

int

ST 9 Thermoregulation probe selection in chiller

0 5

ST 10 Thermoregulation probe selection in heat pump

0= Temperature probe NTC for evaporator inlet 1= Temperature probe NTC for evaporator outlet 1 2= Temperature probe NTC for evaporator outlet 2 3= Temperature probe NTC for common evaporator outlet 4= Temperature NTC probe from remote panel 1 5= Temperature NTC probe from remote panel 2 6= Temperature probe for water common inlet of the condenser 7= Temperature probe for water inlet of the circuit # 1 condenser 8= Temperature probe for water inlet of the circuit # 2 condenser 9= Temperature probe for water outlet of the circuit # 1 condenser 10= Temperature probe for water outlet of the circuit # 2 condenser 11= Temperature probe for water common otlet of the condenser ATTENTION To have the same thermoregulation for chiller and heat pump mode, set the parameters ST09 and ST10 with the same value

0 11

ST 11 Type of thermoregulation

0= Proportional 1= Neutral zone 2= PI Proportional Integral

0 2

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Display read-out

Parameter Description min max M. u. Resolution

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dP 1 Default read-out of the top display 0 14 dP 2 Default read-out of the bottom display 0 17 dP 3 Default display read-out configuration top / bottom

0= Configurable 1= Top display: Evaporator IN, Bottom display: Evaporator OUT 2= Top display: Condenser IN, Bottom display: Condenser OUT 3=Top display: temperature/Condensing pressure, Bottom Display: evaporating pressure

0 3

Display read-out of the remote terminals

dP4 Top display default read-out of the remote terminal_1

0= the read-out depends on the paremeters dP01 – dP02 – dP03 1= the read-out shows the NTC probe of the remote panel.

0 1

dP5 Top display default read-out of the remote terminal_2

0= the read-out depends on the paremeters dP01 – dP02 – dP03 1= the read-out shows the NTC probe of the remote panel.

0 1

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Configuration

Parameter Description min max M. u. Resolution

Unit Model

CF 1 Type of unit

0= Air / air Chiller 1= Air / water Chiller 2= Water / water Chiller

0 2

CF 2 Heat pump

0= no 1= Yes

0 1

CF 3 Motocondensing unit (not available)

0= no 1= si

0 1

Compressors

CF 4 Compressors number for circuit #1

1= 1 2= 2 3= 3 4= 4

0 4

CF 5 Compressors number for circuit #2

0= 0 1= 1 2= 2 3= 3

0 3

CF 6 Number of compressor parzialization

0= none 1= 1 2= 2 3= 3

0 3

Analog Inputs

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CF 7

Pressure or temperature analogue input functioning

0 = Temperature / pressure NTC – 4÷20 mA :

The condensing temperature is controlled with NTC probe while for the evaporating pressures of the circuits 1 and 2 and the pressure probe configured as auxiliary output 1 and 2 are controlled with 4÷20mA transducers.

1 = Pressure control with 4÷20 mA:

To control the evaporating and condensing pressures it is necessary a 4÷20mA transducer.

2 = Temperature / pressure NTC – 0÷5Vdc:

3 = Pressure control with 0÷5Vdc:

To control the evaporating and condensing pressures it is necessary a ratiometric 0÷5Vdc transducer.

0 3

CF 8 PB1 Configuration

If configured as digital input

o 1

c63

CF 9 PB2 Configuration

If configured as digital input

o 1

c63

CF 10 PB3 Configuration

If configured as digital input

o 1

c63

CF 11 PB4 Configuration

If configured as digital input

o 1

c63

CF 12 PB5 Configuration

If configured as digital input

o 1

c63

CF 13 PB6 Configuration

If configured as digital input

o 1

c63

CF 14 PB7 Configuration

If configured as digital input

o 1

c63

CF 15 PB8 Configuration

If configured as digital input

o 1

c63

CF 16 PB9 Configuration

If configured as digital input

o 1

c63

CF 17 PB10 Configuration

If configured as digital input

o 1

c63

Probe Offset

CF 18 PB1 Offset -12.0

-10

12.0

°C °F

Dec

int

CF 19 PB2 Offset -12.0

-10

12.0

°C °F

Dec

int

CF 20 PB3 Offset -12.0

-10

-5.0

-72

12.0

5.0 72

°C °F

bar

psi

Dec

int

dec

int

CF 21 PB4 Offset -12.0

-10

-5.0

-72

12.0 53

5.0 72

°C °F

bar

psi

Dec

int

dec

int

CF 22 PB5 Offset

-12.0

-10

-5.0

-72

12.0 53

5.0 72

°C °F

bar

psi

Dec

int

dec

int

CF 23 PB6 Offset -12.0

-10

-5.0

-72

12.0 53

5.0 72

°C °F

bar

psi

Dec

int

dec

int

CF 24 PB7 Offset -12.0

-10

12.0 53

°C °F

Dec

int

CF 25 PB8 Offset -12.0

-10

12.0 53

°C °F

Dec

int

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CF 26 PB9 Offset -12.0

-10

12.0 53

°C °F

Dec

int

CF 27 PB10 Offset -12.0

-10

12.0 53

°C °F

Dec

int

CF 28 Pressure value at 4mA or 0.5 Vdc of the PB3 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 29 Pressure value at 20mA or 5 Vdc of the PB3 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 30 Pressure value at 4mA or 0.5 Vdc of the PB4 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 31 Pressure value at 20mA or 5 Vdc of the PB4 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 32 Pressure value at 4mA or 0.5 Vdc of the PB5 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 33 Pressure value at 20mA or 5 Vdc of the PB5 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 34 Pressure value at 4mA or 0.5 Vdc of the PB6 transducer 0 0 50.0

725

Bar

psi

Dec

int

CF 35 Pressure value at 20mA or 5 Vdc of the PB6 transducer 0 0 50.0

725

Bar

psi

Dec

int

Digital Inputs

CF 36 Configuration of ID1 0 -o1 c63 CF 37 Configuration of ID2 0 -o1 c63 CF 38 Configuration of ID3

0 -o1 c63

CF 39 Configuration of ID4 0 -o1 c63 CF 40 Configuration of ID5 0 -o1 c63 CF 41 Configuration of ID6 0 -o1 c63 CF 42 Configuration of ID7 0 -o1 c63 CF 43 Configuration of ID8 0 -o1 c63 CF 44 Configuration of ID9 0 -o1 c63 CF 45 Configuration of ID10 0 -o1 c63 CF 46 Configuration of ID11 0 -o1 c63 CF 47 Configuration of ID12 0 -o1 c63 CF 48 Configuration of ID13 0 -o1 c63 CF 49 Configuration of ID14 0 -o1 c63 CF 50 Configuration of ID15 0 -o1 c63 CF 51 Configuration of ID16 0 -o1 c63 CF 52 Configuration of ID17 0 -o1 c63 CF 53 Configuration of ID18 0 -o1 c63

Relay Outputs

CF 54 Configuration of RL1 0 -o1 c58 CF 55 Configuration of RL2 0 -o1 c58 CF 56 Configuration of RL3 0 -o1 c58 CF 57 Configuration of RL4 0 -o1 c58 CF 58 Configuration of RL5 0 -o1 c58 CF 59 Configuration of RL6 0 -o1 c58 CF 60 Configuration of RL7 0 -o1 c58 CF 61 Configuration of RL8 0 -o1 c58 CF 62 Configuration of RL9 0 -o1 c58 CF 63 Configuration of RL10 0 -o1 c58 CF 64 Configuration of RL11 0 -o1 c58 CF 65 Configuration of RL12 0 -o1 c58 CF 66 Configuration of RL13 0 -o1 c58 CF 67 Configuration of RL14 0 -o1 c58

Condensing proportional outputs

CF 68 Circuit 1 output signal:

0= 0 – 10Vdc 1= 4 ÷ 20mA 2= PWM for mono phase fan control board

0 2

CF 69 Circuit 2 output signal:

0= 0 – 10V 1= 4 ÷ 20Ma 2= PWM for mono phase fan control board

0 2

Uscite modulanti

CF 70 Proportional output 1

0= Not enabled 1= Free cooling Dumper / Mixing valve 2= 3-way valve for hot water 3= Dumper for air change 4= auxiliary output Relay driver ON / OFF

o 1

c28

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CF 71 Proportional output 2

0= Not enabled 1= Free cooling Dumper / Mixing valve 2= 3-way valve for hot water 3= Dumper for air change 4= auxiliary output Relay driver ON / OFF

o 1

c28

CF 72 Proportional output 3

0= Not enabled 1= Free cooling Dumper / Mixing valve 2= 3-way valve for hot water 3= Dumper for air change 4= auxiliary output Relay driver ON / OFF

o 1

c28

CF 73 Proportional output 4

0= Not enabled 1= Free cooling Dumper / Mixing valve 2= 3-way valve for hot water 3= Dumper for air change 4= auxiliary output Relay driver ON / OFF

o 1

c28

Terminale remoto

CF 74 Remote Panel 1 configuration

0= Not enabled 1= with NTC ambient temperature sensor 2= without NTC ambient temperature sensor

0 2

CF 75 Remote Panel 2 configuration

0= Not enabled 1= with NTC ambient temperature sensor 2= without NTC ambient temperature sensor

0 2

CF 76 Offset of the NTC probe of the remote terminal # 1 -12.0

-10

12.0 53

°C °F

Dec int

CF 77 Offset of the NTC probe of the remote terminal # 2 -12.0

-10

12.0 53

°C °F

Dec int

Icon function

CF 78 Icon function

chiller / heat pump

0 1

Chiller / heat pump selection mode

CF 79 0= from keyboard

1= from digital input 2= from analogue input

0 2

Automatic Change over

CF 80 Change over setpoint for chiller/ heat pump inversion if Par. CF80=2 -30.0

-22

70.0 158

°C °F

Dec

int

CF 81 Change over temperature differential if Par. CF80=2 0 0 25.0

°C °F

Dec

int

U. m. Unit of measurement

CF 82 °C or °F selection

0= °C / °BAR 1= °F / °psi

0 1

Voltage frequency

CF 83 Power supply frequency

0= 50 Hz 1= 60 Hz 2= cc voltage ( ATTENTION

with Par. CF83 = 2 the proportional outputs for fan control are

not enabled and the frequency alarm is inhibited)

0 2

Serial Address

CF 84 Serial address 1 247 CF 85 Firmware Release CF 86 Eeprom parameter map Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Dynamic Setpoint

Parameters Description min max M. u. Resolution Sd 1 Maximum dynamic Offset in chiller mode -30.0

-54

30.0

°C °F

Dec

int

Sd 2 Maximum dynamic Offset in heat pump mode -30.0

-54

30.0

°C °F

Dec

int

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

Sd 3 External air setpoint in chiller mode -30.0

-22

70.0 158

°C °F

Dec

int

Sd 4 External air setpoint in heat pump mode -30

-22

70.0 158

°C °F

Dec

int

Sd 5 External air differential in chiller mode -30.0

-54

30.0

°C °F

Dec

int

Sd 6 External air differential in heat pump mode -30.0

-54

30.0

°C °F

Dec

int

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Energy saving

Parameters Description min max udm Risoluzione ES 1 Start of the Time band 1 (0÷24) 0 24.00 Hr 10 Min

ES 2 End of the Time Band 1 (0÷24) 0 24.00 Hr 10 Min ES 3 Start of the Time band 2 (0÷24) 0 24.00 Hr 10 Min ES 4 End of the Time Band 2 (0÷24) 0 24.00 Hr 10 Min ES 5 Start of the Time band 3 (0÷24) 0 24.00 Hr 10 Min ES 6 End of the Time Band 3 (0÷24) 0 24.00 Hr 10 Min ES 7 Monday: energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 8 Tuesday energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 9 Wednesday energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 10 Thursday energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 11 Friday energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 12 Saturday energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 13 Sunday energy saving activated

Automatic unit on-off

0 - 0 7 - 7

ES 14 Energy Saving setpoint offset in chiller mode -30.0

-54

30.0

°C °F

Dec

int

ES 15 Energy Saving differential in chiller mode 0.0 0 25.0

°C °F

Dec

int

ES 16 Energy Saving setpoint offset in heat pump mode -30.0

-54

30.0

°C °F

Dec

int

ES 17 Energy Saving differential in heat pump mode 0.0 0 25.0

°C °F

Dec

int

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Compressors

Parameters Description min max udm Risoluzione CO 1 Minimum compressor ON time after the start-up.

0 250

sec

10 sec

CO 2 Minimum compressor OFF time after the switching off.

0 250

sec

10 sec

CO 3 ON delay time between two compressors or compressor and valve. During

this time the led of the next resource is blinking.

1 250 Sec

CO 4 OFF delay time between two compressors or compressor and valve. During

this time the led of the next resource is blinking.

0 250 Sec

CO 5 Output time delay after the main power supply start-up to the unit.

All the loads are delayed in case of frequently power failures.

0 250

Sec

10 sec

Partialization (Capacity Control)

CO 6 Functioning (see Capacity Control)

0= With on/off steps 1= Continuous with steps and direct action 2= Continuous with steps and reverse action 3= Continuous with steps and direct total action

0 3

CO 7 Start-up with minimum compressor power / automatic start-unloading valve

0 = Only at the compressor start-up (Minimum power automatic startunloading valve off) 1= At the compressor start-up and during the termoregulation (Minimum power / automatic start-unloading valve off) 2 = Only at the screw compressor start-up (Minimum power automatic startunloading valve off) 3= At the compressor start-up and during the termoregulation (Minimum power / Unloading valve ON with compressor off)

0 3

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CO 8 Relay ON time of the Solenoid valve Intermittent for screw compressor, with 0

the function is not enabled.

0 250 Sec

CO 9 Relay OFF time of the Solenoid valve Intermittent for screw compressor 0 250 Sec

Compressor start-up

CO 10 Kind of compressor start-up

0= Direct ( vedi avviamento compressors ) 1= Part - winding 2= Star-delta

0 2

CO 11 If CO10= 1 part - winding start-up time. To change the time delay between the

two contactors of the two compressor circuits. Se CO10= 2 Star-delta start-up time. To change the time delay between the contactor of the line 1 and the contactor of the centre of the star. (see part – winding /start-triangle functioning)

0 100

Dec.

di Sec

0.1 sec

CO 12 If CO10= 2 Time of Star-delta start. Time delay to turn off the centre star

contactor and to turn on the line 2 contactor (see Star-delta functioning)

0 50

Dec.

di Sec

0.1 sec

CO 13 By-pass gas valve start-up time / automatic start-unloading valve (capacity

step control)

0 250 sec

Rotating – Balancing – Compressors Thermoregulation

CO 14 Compressor rotation (See compressor rotation)

0 = Sequential 1 = Compressors rotation based on time running hours 2 = Compressors rotation based on number of starts-up

0 2

CO 15 Circuit balancing (See Circuit balancing)

0= Circuit saturation 1= Circuit balancing

0 1

Evaporator water pump

CO 16 Operative mode of the evaporator pump / supply fan (See Evaporator pump

function) 0= Not enabled (evaporator pump or supply fan). 1= Continuous. When the unit is running in Chiller or HP the pump or the supply fan is running. 2= With compressor. When a compressor is running also the pump or the supply fan is running.

0 2

CO 17 ON compressor delay after water pump / supply fan start-up (See water pump

functioning).

1 250 Min

CO 18 OFF delay evaporator water pump / supply fan after compressor switching

OFF. This delay is also active when the unit is turned in stand-by (See evaporator water pump function).

0 250 Min

CO 19 Number of time running hours for pump rotation (See water pump group

function)

0 999 10Hr 10Hr

CO 20 Time to make run the pumps together before rotating from one to the other

(See water pump group function)

0 250 Sec

Condenser water pump

CO 21 Operative mode for condenser water pump (See condenser water pump

function) 0= Not enabled. 1= Continuous. When the unit is running in Chiller or HP the is running. 2= With compressor. When a compressor is running also the pump is running.

0 2

CO 22 Free CO 23 OFF delay condenser water pump after compressor switching OFF. This

delay is also active when the unit is turned in stand-by (See evaporator water pump function).

0 250 Min

CO 24 Number of time running hours for pump rotation (See water pump group

function).

0 999 10Hr 10Hr

CO 25 Time to make run the pumps together before rotating from one to the other

(See water pump group function).

0 250 Sec

Load maintenance

CO 26 Compressor 1 hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 27 Compressor 2 hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 28 Compressor 3 hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 29 Compressor 4 hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 30 Compressor 5 hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 31 Compressor 6 hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 32 “Evaporator pump / Supply fan” hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 33 2nd Evaporator pump hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 34 Condenser pump hour counter set (See maintenance request) 0 999 10 Hr 10 Hr CO 35 2nd Condenser pump hour counter set (See maintenance request) 0 999 10 Hr 10 Hr

Pump down

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

CO 36 Pump down operating mode (See pump down ON/OFF function)

0= Not enabled 1= Unit off with pump–down, unit on without pump–down 2= Unit off with pump–down, unit on with pump–down 3= Chiller mode off with pump–down, chiller mode on without pump–down 4= Chiller mode off with pump–down, chiller mode on with pump–down

0 4

CO 37 Pump–down pressure setpoint (See pump down ON/OFF function) 0 0 50.0

725

Bar

psi

Dec

int

CO 38 Pump-down pressure differential (See pump down ON/OFF function) 0 0 14.0

203

Bar

psi

Dec

int

CO 39 Maximum pump–down time duration at start-up and stop (See pump down

ON/OFF function)

0 250 Sec

Evaporator Unloading

CO 40 Unloading compressor setpoint in chiller. From high temperature of the

evaporator water inlet (See unloading function).

-30 0 70.0 725

°C °F

Dec

int

CO 41 Unloading Differential. From high temperature of the evaporator water inlet

(See unloading function).

0.0 0 25.0

°C °F

Dec

int

CO 42 Delay time to engage the Unloading function from high temperature of the

evaporator water inlet (See unloading function).

0 250 Sec 10sec

CO 43 Maximum unloading duration time to keep activated the Unloading function

from high temperature of the evaporator water inlet (See unloading function).

0 250 Min

Condenser Unloading

CO 44 Unloading compressor setpoint. From temperature / pressure in chiller mode

(See unloading function).

0 0 50.0

725

Bar

psi

Dec

int

CO 45 Unloading Differential. From temperature / pressure in chiller mode (See

unloading function).

0.0 0 14.0 203

Bar Psi

Dec

int

CO 46 Unloading compressor setpoint. From temperature / pressure in HP mode

(See unloading function).

0 0 50.0

725

Bar

psi

Dec

int

CO 47 Unloading Differential. From temperature / pressure in HP mode (See

unloading function).

0.0 0 14.0 203

Bar Psi

Dec

int

CO 48 Maximum unloading duration time from temperature/pressure control. 0 250 Min CO 49 Number of steps for circuit with active unloading

1= 1

step

2= 2

step

3= 3

step

1 3

CO 50 Minimum ON time of the capacity step after the unloading function start (only

for capacity compressor)

0 250 Sec

Compressor liquid injection

CO 51 Setpoint of the solenoid valve (on) of the liquid injection 0 0 150

302

°C °F

Dec / int

int

CO 52 Setpoint of the solenoid valve (off) of the liquid injection 0.0 0 25.0

°C °F

Dec

int

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Auxiliary relay menu function

Parameters Description min max M. U. Resolution

Auxiliary relay of the circuit 1

US 1 Auxiliary relay 1 operating mode (See graph and auxiliary relay functions)

0= Not enabled 1= Always available with direct action 2= Available only when the unit is on with direct action 3= Always available with reverse action 4= Available only when the unit is on with reverse action

0 4

US 2 Analog input configuration for auxiliary relay 1 control. Allows to select which

probe value Pb1..Pb10 controls the relay

1 10

US 3 Auxiliary setpoint 1 (See graph and auxiliary relay functions)

-30.0

-22

0.0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

US 4 Auxiliary differential 1 (See graph and auxiliary relay functions)

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

Auxiliary relay circuit 2

US 5 Auxiliary relay 2 operating mode (See graph and auxiliary relay functions)

0 4

US 6 Analogue input configuration for auxiliary relay 2 control . Allows to select

which probe value Pb1..Pb10 controls the relay

1 10

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US 7 Auxiliary setpoint 2 (See graph and auxiliary relay functions)

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

US 8 Auxiliary differential 1 (See graph and auxiliary relay functions)

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Condenser fan

Parameters Description min max M. U. Resolution FA 1 Fan configuration output

0 = Not enabled 1 = Always on 2 = ON/OFF regulation with steps 3 = ON/OFF Continuous regulation 4 = Proportional speed control

0 4

FA 2 Fan operating mode

0= Dependent from the compressor 1= Independent from the compressor

0 1

FA 3 If the condenser fan control is the triac output, when the regulation starts the

trigger output will drive the condenser fan at the maximum voltage for the time FA 3 then, then the regulation will follow the temperature/pressure of the probe.

0 250 Sec

FA 4 Phase shifting of the fan motor

0 8

Micro

Sec

250µs

FA 5 Number of condensing circuits

0= one condenser circuit 1= tow condenser circuits

0 1

FA 6 Pre-ventilation time before turning on the compressor in chiller mode.

To turn on the fan at the maximum speed before the compressor and reduce the successive condensing temperature/pressure increasing. (only if FA01=4)

0 250 Sec

Fan in Chiller mode

FA 7 Minimum speed for condenser fan in Chiller mode.

To set the minimum fan speed percentage value (30..100%), it is related to the fan power supply.

30 100 %

FA 8 Maximum speed for condenser fan in Chiller mode.

To set the maximim fan speed percentage value (30..100%), it is related to the fan power supply.

30 100 %

FA 9 Proportional speed control FA01 = 4

Temperature or pressure limit to enable the minimum speed FA 7

ON/OFF regulation FA01 = 2/3

SETpoint step n° 1

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

FA 10

Proportional speed control FA01 = 4

Temperature or pressure limit to enable the maximum speed FA 8

ON/OFF regulation FA01 = 2/3

SETpoint step n° 2

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

FA 11 Proportional speed control FA01 = 4

Proportional band for condenser fan control in chiller To set the temperature/pressure differential between the minimum and the maximum of the fan speed regulation.

ON/OFF regulation FA01 = 2/3

Differential step circuit n° 1

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

FA 12 Proportional speed control FA01 = 4

CUT-OFF differential in chiller. To set a temperature/pressure differential to stop the fan.

ON/OFF regulation FA01 = 2/3

Differential step circuit n° 2

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

FA 13 Over ride CUT- OFF in chiller. To set a temperature/pressure differential to

keep the minimum fan speed.

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

FA 14 CUT-OFF time delay. To set a time delay before activating the CUT-OFF

function after the fan start-up. If after the compressor start-up the proportional regulator requires to turn off the fan (cut-off) and FA14≠0, the fan is on at the minimum speed for the time set in this parameter. If FA14=0 the function is disabled.

0 250 Sec

FA 15 Night speed in chiller. To set the maximum fan speed percentage value

(30..100%), it is related to the fan power supply.

30 100 %

Fan in Heat pump mode

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

FA 16 Minimum speed for condenser fan in Heat Pump mode.

To set the minimum fan speed percentage value (30..100%), it is related to the fan power supply.

30 100 %

FA 17 Maximum speed for condenser fan in Heat Pump mode.

To set the maximum fan speed percentage value (30..100%), it is related to the fan power supply.

30 100 %

FA 18 Proportional speed control FA01 = 4

Temperature or pressure limit to enable the minimum speed FA16

ON/OFF regulation FA01 = 2/3

SETpoint step n° 1

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

FA 19 Proportional speed control FA01 = 4

Temperature or pressure limit to enable the maximum speed FA17

ON/OFF regulation FA01 = 2/3

SETpoint step n° 2

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

FA 20 Proportional speed control FA01 = 4

Proportional band for condenser fan control in heat pump To set the temperature/pressure differential between the minimum and the maximum of the fan speed regulation.

ON/OFF regulation FA01 = 2/3

Differential step circuit n° 1

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

FA 21 Proportional speed control FA01 = 4

CUT-OFF differential in heat pump. To set a temperature/pressure differential to stop the fan.

ON/OFF regulation FA01 = 2/3

Differential step circuit n° 2

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

FA 22 Over ride CUT- OFF in Heat pump. To set a temperature/pressure differential

to keep the minimum fan speed.

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

FA 23 Night speed in Heat pump. To set the maximum fan speed percentage value

(30..100%), it is related to the fan power supply.

30 100 %

Hot start

FA 24 Hot start setpoint -30.0

-22

70.0 158

°C °F

Dec

int

FA 25 Hot start differential 0.0 0 25.0

°C °F

Dec

int

3 / 4 step condenser Fan in Chiller mode

FA 26 ON/OFF regulation FA01 = 2/3

SETpoint step n° 3

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

FA 27 ON/OFF regulation FA01 = 2/3

SETpoint step n° 4

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

3 / 4 step condenser Fan in heat pump

FA 28 ON/OFF regulation FA01 = 2/3

SETpoint step n° 3

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

FA 29 ON/OFF regulation FA01 = 2/3

SETpoint step n° 4

-30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Antifreeze heaters – Integration heating - boiler

Parameter Description min max m. u. Risoluzione Ar 1 Anti-freeze heaters/integration heating setpoint for air/air unit in Chiller mode.

To set a temperature value, below this value the anti-freeze relay is activated.

-30.0

-22

70.0 158

°C °F

Dec

int

Ar 2 Regulation band for antifreeze in Chiller mode.

0.1 0 25.0 45

°C °F

Dec

Int

Ar 3 Set Anti-freeze heaters/integration heating setpoint for air/air unit in HP mode.

To set a temperature value, below this value the anti-freeze relay is activated.

-30.0

-22

70.0 158

°C °F

Dec

int

Ar 4 Regulation band for antifreeze in HP mode. -30.0

-22

70.0 158

°C °F

Dec

int

Ar 5 Antifreeze heaters / integration heating in defrost

0= ON only with thermoregulation control 1= ON with thermoregulation and during the defrosting cycle

0 1

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Ar 6 Antifreeze alarm probe / heaters / appoggio in Chiller mode.

0= Not enabled 1= Evaporator inlet 2= Evaporator outlet 1 and 2 3= Evaporator outlet 1 and 2 and common outlet

0 3

Ar 7 Antifreeze alarm probe / heaters / support heaters in HP mode.

0= Not enabled 1= Evaporator inlet. 2= Evaporator outlet 1 and 2. 3= Evaporator outlet 1 and 2 and common outlet.

0 3

Ar 8 Thermoregulation probe for anti-freeze alarm / condenser heaters.

0= not enabled. 1= Condenser common water inlet probe. 2= Condenser common water inlet and condenser inlet 1 / 2 probe. 3= Condenser water outlet 1 / 2 probe. 4= Condenser water outlet 1 / 2 and common outlet.

0 4

Ar 9 Anti-freeze heaters or condenser/evaporator water pump control with unit in

remote OFF or stand-by mode: 0= Control not enable 1=Controlled by anti-freeze thermoregulation.

0 1

Ar 10 Anti-freeze heaters control for condenser/evaporator faulty probe:

0= Anti-freeze heaters OFF 1= Anti-freeze heaters ON

0 1

Boiler function

Ar 11 Boiler function

0=Not enabled 1=Enabled for integration heating 2= Enabled for heating

0 2

Ar 12 External air temperaure setpoint for boiler heaters (on) -30.0

-22

70.0 158

°C °F

Dec

int

Ar 13 Temperature differential for boiler heaters (off) 0 0 25.0

°C °F

Dec

int

Ar 14 Time delay before turning the boiler on 0 250 Min

Boiler function in Chiller mode

Ar 15 Setpoint for boiler heaters (on) in chiller -30.0

-22

70.0 158

°C °F

Dec

int

Ar 16 Proportional band for boiler heaters in chiller -30.0

-22

70.0 158

°C °F

Dec

int

Boiler function in heat pump

Ar 17 Setpoint for boiler heaters (on) in HP -30.0

-22

70.0 158

°C °F

Dec

int

Ar 18 Proportional band for boiler heaters in HP 0.1 0 25.0

°C °F

Dec

int

Ar 19 External air setpoint to stop the compressor as integration function -30.0

-22

70.0 158

°C °F

Dec

int

Ar 20 External air differential to stop the compressor as integration function 0.1 0 25.0

°C °F

Dec

int

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Defrost

Parameter Description min max udm Risoluzione dF 1 Defrost configuration:

0= Not enabled 1= Temperature / pressure 2= start depends on par. dF24 stop for time duration 3= start depends on par. dF24 stop for external contact

0 3

dF 2 Temperature or pressure of the defrost start-up -30.0

-22

0.0 0

70.0 158

50.0 725

°C °F

bar

psi

Dec

int

Dec

Int

dF 3 Temperature or pressure of the defrost stop -30.0

-22

0.0 0

70.0 158

50.0 725

°C °F

bar

psi

Dec

int

Dec

Int

dF 4 Minimum defrost duration. 0 250 Sec dF 5 Maximum defrost duration. 1 250 Min dF 6 Time delay between the defrost of two circuits 0 250 Min dF 7 OFF compressor delay before the defrost 0 250 Sec dF 8 OFF compressor delay after the defrost 0 250 Sec dF 9 Defrost interval time of the same circuit 1 99 Min dF 10 Temperature setpoint for combined defrost of the 1

circuit after parameter

DF10 counting.

-30.0

-22

70.0 158

°C °F

Dec

int

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

dF 11 Temperature setpoint for combined defrost end of the 1

circuit. -30.0

-22

70.0 158

°C °F

Dec

int

dF 12 Temperature setpoint for combined defrost of the 2

circuit after parameter

DF10 counting.

-30.0

-22

70.0 158

°C °F

Dec

int

dF 13 Temperature setpoint for combined defrost end of the 2

circuit. -30.0

-22

70.0 158

°C °F

Dec

int

dF 14 Activation of all the steps of the 1

circuit during the defrost. 0= Not enabled 1= Enabled

0 1

dF 15 Activation of all the steps of the 2

circuit during the defrost. 0= Not enabled 1= Enabled

0 1

dF 16 Time delay between two compressor ON in defrost mode 0 250 Sec dF 17 Fan control during defrost / dripping time

0= Not enabled 1= Only in defrost 2= For both functions defrost / dripping time

0 2

dF 18 Pressure / temperature setpoint to force the ventilation ON during the defrost. -30.0

-22

0.0 0

70.0 158

50.0 725

°C °F

bar

psi

Dec

int

Dec

Int

Forced defrost

dF 19 Minimum time delay before a forced defrost 0 250 sec dF 20 Pressure / temperature setpoint for a forced defrost -30.0

-22

0.0 0

70.0 158

50.0 725

°C °F

bar

psi

Dec

int

Dec

int

dF 21 Forced defrost differential 0.1

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

Defrost operative mode

dF 22 Defrost start-up with 2 circuits

0= Independent 1= If both have reached the necessary requirements 2= If one has reached the necessary requirements

0 2

dF 23 End defrost for two circuits and common ventilation.

0= Independent 1= If both have reached the necessary end defrost requirements 2= If one has reached the necessary end defrost requirements

0 2

Start / stop defrost from analog input

Parameters description min max udm resolution dF 24 Start / stop defrost probe

0= start and stop with condenser temperatur / pressure probe 1= start with evaporator pressure probe / stop with condenser temperatur / pressure probe 2= start with condenser temperatur / pressure probe / stop with evaporator pressure probe 3= start and stop with evaporator pressure probe

0 3

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

Recovery

Parameters description min max udm resolution rC 1 Recovery modes

0 = not enabled 1 = 2 indipendent circuit 2 = both the circuit in parallel

0 2

rC 2 Delay time delay with step forced off 0 250 Sec rC 3 Delay time delay with step forced off after the recovery valve activation 0 250 Sec rC 4 Recovery minimum time 0 250 Min rC 5 Minimum interval time between the end and the beginning of the next

recovery

0 250 Min

rC 6 Temperature setpoint to disable the recovery -30.0

-22

0.0 0

70.0 158

50.0 725

°C

°F Bar Psi

Dec

int

Dec

int

rC 7 Temperature differential to restore the recovery 0.1

0.0 0

25.0 45

14.0

203

°C

°F Bar Psi

Dec

int

Dec

int

rC 8 Maximum time with recovery disabled (if temperature/pressure within rC6-

rC7)

0 250 Min

Pr1 Password 0 999

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Pr2 Password 0 999 Pr3 Password 0 999

Alarms

Parameters Description min max m. u. Resolution

Low alarm

AL 1 Low pressure alarm delay from analog and digital input 0 250 Sec AL 2 Low pressure alarm delay from digital input after compressor stop if the low

pressure switch is used for the pump down.

10 250 Sec

AL 3 Low pressure alarm setpoint from analogue input -30.0

-22

0.0 0

70.0 158

50.0 725

°C °F

bar

psi

Dec

int

Dec

int

AL 4 Low pressure alarm differential from analogue input 0.1

0.0 0

25.0 45

14.0

203

°C °F

bar

psi

Dec

int

Dec

Int

AL 5 Maximum number of low pressure events from digital/analogue inputs:

Manual reset if AL05 = 0 Automatic reset if AL05 =16 From automatic to manual reset if AL05= 1..15

0 16

AL 6 Low temperature/pressure alarm during defrost

0= Not enabled 1= Enabled

0 1

AL 7 Low temperature/pressure alarm delay during defrost 0 250 Sec AL 8 Low temperature/pressure alarm with unit in OFF or stand – by:

0 = Not enabled 1= Alarm enabled

0 1

High Alarm

AL 9 High temperature/pressure alarm from analogue input -30.0

-22

0.0 0

70.0 158

50.0 725

°C °F

bar

psi

Dec

int

Dec

int

AL 10 High temperature/pressure alarm differential from analogue input 0.1

0.0 0

25.0 45

14.0

203

°C °F

bar

psi

Dec

int

Dec

int

Oil Alarm

AL 11 Low oil pressure / level delay from digital input 0 250 Sec AL 12 Minimum time for low oil pressure / level from digital input activation in normal

working condition.

0 250 Sec

AL 13 Maximum number of low oil pressure/level events:

Always manual reset if AL13= 0 Always automatic reset if AL13 =16 From automatic to manual reset if AL13 = 1..15

0 16

Flow alarm

AL 14 Configuration

0= Not enabled 1= Only for chiller 2= Only for heat pump 3= For both chiller and heat pump

0 3

AL 15 “Flow switch / supply fan overload” alarm delay after pump/fun activation. 0 250 Sec AL 16 Maximum number of “flow switch/supply fan” alarm events

Always manual reset if AL16 = 0 Always automatic reset if AL16 =16 From automatic to manual reset if AL16 =1..15

0/1 16

AL 17 Minimum “Flow switch / supply fan overload” active time duration. 0 250 Sec AL 18 Minimum “Flow switch / supply fan overload” not active time duration. 0 250 Sec

Compressor overload alarm

AL 19 Compressor overload alarm delay after compressor start-up 0 250 Sec AL 20 Maximum number of compressor overload alarm events

Always manual reset if AL20 = 0 Always automatic reset if AL20 =16 From automatic to manual reset if AL20 =1..15

0 16

Pump down alarm

AL 21 Maximum number of pump down alarm events per hour in stop condition.

After this number the alarm is logged, displayed and signalled with alarm relay + buzzer. Manual reset if AL21 = 0 Automatic reset if AL21 =16 From automatic to manual reset if AL21 =1..15

0 16

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AL 22 Maximum number of pump down alarm events per hour in start-up condition.

After this number the alarm is logged, displayed and signalled with alarm relay + buzzer. Always manual reset if AL22 = 0 Always automatic reset if AL22 =16 From automatic to manual reset if AL21 =1..15 and parameter AL23 config.

0 16

AL 23 Select if the pump down alarm must change from automatic to manual reset:

0= Always automatic reset 1= Manual reset after AL21 alarm events

0 1

Anti-freeze alarm in Chiller mode

AL 24 Minimum antifreeze setpoint in chiller (from –30 °C to AL24) -30.0

-22

AL24

°C °F

Dec

int

AL 25 Maximum antifreeze setpoint in chiller (from AL24 to 70 °C)

AL24

70.0

158

°C °F

Dec

int

AL 26 Setpoint temperature for low anti-freeze alarm, low ambient temperature

(air/air), low temperature air outlet (air/air). From AL24 to AL25.

AL24 AL25 °C/°F Dec/int

AL 27 Differential of alarm reset in Chiller mode for anti-freeze, low ambient air

temperature or low outlet air temperature alarms.

0 0 25.0

°C °F

Dec

int

AL 28 Alarm delay for anti-freeze, low ambient air temperature or low outlet air

temperature. The temperature must be lower than AL26 for this time duration before having the alarm event.

0 250 Sec

AL 29 Maximum number of alarm events anti-freeze, low ambient air temperature or

low outlet air temperature before changing from automatic to manual alarm reset: Always manual reset if AL29 = 0 Always automatic reset if AL29 = 16 From automatic to manual if AL29 = 1. .15

0 16

AL 30 Anti-freeze alarm configuration in chiller

0= to turn the compressors off when the anti-freeze control probe is lower than AL26 (after the time delay), the display shows the alarm label. Buzzer and Alarm relay are not activated. 1= to turn the compressors off when the anti-freeze control probe is lower than AL26 (after the time delay), the display shows the alarm label. Buzzer and Alarm relay are activated.

0 1

Anti-freeze alarm in Heat pump mode

AL 31 Setpoint of the minimum limit in heat pump (va da – 30 °C a AL32) -30.0

-22

AL31

°C °F

Dec

int

AL 32 Setpoint of the maximum limit in heat pump (va da AL31 a 70 °C)

AL31

70.0

158

°C °F

Dec

int

AL 33 Anti-freeze alarm setpoint in heat pump

Setpoint temperature for low anti-freeze alarm, low ambient temperature (air/air), low temperature air outlet (air/air). (from AL31 to AL32)

AL31 AL32 °C/°F Dec/int

AL 34 Alarm differential in heat pump. To reset the anti-freeze, low ambient

Temperature (air/air), low temperature air outlet (air/air) alarms.

0 0 25.0

°C °F

Dec

int

AL 35 Anti-freeze alarm delay in HP for low outlet air temperature (air/air)

Attention

If during the Stand-by or remote off there is an anti-freeze alarm event, and the AL35 <>0, starting the heat pump mode, from keyboard or digital input. In this case the anti-freeze alarm is aborted and the compressor starts for the AL35 time to heat the air or the water. After the AL35 time if the antifreeze probe value is still lower than AL33 setpoint, for maximum AL36 seconds, the unit is stopped and the anti-freeze alarm is generated again.

0 250 Sec

AL 36 Anti-freeze alarm delay for low air ambient temperature or low outlet air

temperature in heat pump normal condition. The detected temperature must be lower than AL33 for the time AL36 before giving the alarm

0 250 Sec

AL 37 Maximum number of anti-freeze alarm events for low air ambient temperature

or low outlet air temperature in heat pump. It sets the alarm reset condition: Always manual reset AL37 = 0 Always automatic reset AL37 = 16 From automatic to manual reset if AL37 = 1..15

0 16

AL 38 Anti-freeze alarm configuration in heat pump

0= to turn the compressors off when the anti-freeze control probe is lower than AL33 (after the time delay), the display shows the alarm label. Buzzer and Alarm relay are not activated. 1= to turn the compressors off when the anti-freeze control probe is lower than AL33 (after the time delay), the display shows the alarm label. Buzzer and Alarm relay are activated.

0 1

Compressor high discharge temperature

AL 39 Compressor high discharge temperature setpoint 0 0 150

302

°C °F

Dec / int

int

AL 40 Compressor high discharge temperature differential 0 0 25.0

°C °F

Dec

int

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AL 41 Number of compressor high discharge temperature events per hour to

determine the alarm reset condition: Always manual reset if AL41 = 0 Always automatic reset if AL41 =16 From automatic to manual if AL41 = 1..15

0 16

AL 42 Maximum number of generic alarm events (each event stop the regulation)

before turning the alarm from automatic to manual: Always manual AL42 = 0 Always automatic AL42 =16 From manual to utomatic if AL42 value is between 1 and 15

0 16

AL 43 Generic alarm delay time after the digital input activation 0 250 Sec AL 44 Generic alarm delay time after the digital input is not activate

0 250

10 sec

Alarm relay

AL 45 Enable alarm relay with unit in off or stand – by:

0= Alarm output not enabled 1= Alarm output enabled

0 1

Password reset: Alarm log – Compressor overload

AL 46 Password value to reset the alarm log or the compressor overload alarm. 0 999 AL 47 Thermal alarm of the compressor

0= lock the compressor 1= lock the whole circuit

0 1

Pr1 Password 0 999 Pr2 Password 0 999 Pr3 Password 0 999

10 PROGRAMMING WITH THE “HOT KEY 64”

10.1 DOWNLOAD: HOW TO PROGRAM AN INSTRUMENT WITH A PROGRAMMED “HOT KEY”

1. Turn off the instrument supply

2. Insert the hot key.

3. Turn on the power supply.

4. Immediately the parameters are downloaded. During the download the regulation is locked and the top display shows the “doL” blinking label. At the end of the download will appear:

“End” if the programming procedure is completely OK, after 30seconds the regulation starts automatically. “Err” if the programming procedure has found an error and the parameter have not been transferred. In this case turn off and then on

the instrument supply to repeat the operation or remove the hot key, with power supply off, to restart the regulation.

10.2 UPLOAD: HOW TO PROGRAM A “HOT KEY” WITH THE PARAMETERS OF THE INSTRUMENT

1. Turn on the power supply.

2. Insert the hot key.

3. Enter the function Menu.

4. Select the UPL function (on the bottom display).

5. Push SET key and immediately the instrument starts transfer the parameters into the Hot key. During the upload the regulation is locked and the top display shows the “UPL” blinking label. At the end of the UPLOAD will appear:

To exit the UPL function push the MENU key or wait the time-out (15 sec).

11 PROGRAMMING USING THE KEYBOARD

Through the instrument keyboard it is possible to enter the programming. In all the three accessible levels the user can show and modify both value and visibility of the parameters. To ensure an easy navigation through the different levels the common parameters have been named and grouped under a family name. The three levels of programming:

• Pr1 User level

• Pr2 Maintenance level

• Pr3 OEM level

11.1 PASSWORD DEFAULT VALUES

• Password level Pr1 = 1

• Password level Pr2 = 2

• Password level Pr3 = 3

Under the function Menu (to reset the Alarm Log or the Compressor Overload) the password is 0 (see parameter AL46) Each password can be changed, the range is from 0 to 999.

Each parameter has two level: visibility and modify. Therefore it can be configured as follow:

• The parameter can be showed and changed.

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• The parameter can be showed but not changed.

11.2 ENTER THE PR1 - PR2 - PR3 PROGRAMMING LEVELS

Pr1 LEVEL:

Push SET + DOWN together for 3 seconds, the top display shows the PAS label and the bottom display shows the Pr1 label. The leds cir1/cir2 are blinking (up and down leds) to inform that you now are in PR1 programming level.

Pr2 LEVEL:

From the Pr1 level push the UP key for 2 seconds and the bottom display will show Pr2. The top display still shows PAS.

Pr3 LEVEL:

From the Pr2 level push the UP key for 2 seconds and the bottom display will show Pr3. The top display still shows PAS. After selecting the level push the SET key and the top display will show the 0 blinking value where to insert the password . Set the password level using the UP and DOWN keys then confirm with SET key. Dependening on the password value there will be the different level access, if the password is wrong the instrument shows the password value again.

ATTENTION: For all the programming levels Pr1,2,3: the CF family (or configuration parameters) can not be changed if the unit is running in chiller, heat pump. The user can check the leds #1 and #2 and if they are blinking it is not possible to change this parameters but it is necessary to set the unit in stand-by and then enter the programming again. During the defrost the dF family can’t be programmed.

11.3 HOW TO CHANGE A PARAMETER VALUE

Enter the programming

1. Push the SET + DOWN keys together for 3 seconds;

2. Select the parameter label with up and down keys;

3. Push SET to enter the parameter value;

4. Change the value with UP or DOWN keys;

5. Push “SET” to confirm, after some seconds the display shows the next parameter;

6. Exit: Push SET + UP together when a parameter label is displayed or wait 15seconds without pushing a key.

NOTE: a new parameter value is confirmed also after the 15 seconds of timeout is expired (without pushing SET key to confirm).

11.4 CHANGE THE PASSWORD VALUE

Pr1 LEVEL

Remember that it is necessary to know the old password value.

1) Enter the Pr1 level

2) Select a parameter family.

3) Inside the family select the “Pr1 - 1”, Pr1 on the bottom display, the current password value 1 on the top display. Push the SET key to change the value that now is blinking.

4) Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.

5) The top display blinks for some seconds and then shows the next parameter.

6) Exit the programming pushing SET + UP together or wait the timeout.

Pr2 LEVEL

Remember that it is necessary to know the old password value.

1. Enter the Pr2 level

2. Select a parameter family.

3. Inside the family select the “Pr2 - 2”, Pr2 on the bottom display, the current password value 2 on the top display. Push the SET key to change the value that now is blinking.

4. Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.

5. The top display blinks for some seconds and then shows the next parameter

6. Exit the programming pushing SET + UP together or wait the timeout.

Inside the Pr2 level it is possible to change also the Pr1 password.

Pr3 LEVEL

Remember that it is necessary to know the old password value.

1. Enter the Pr3 level

2. Select a parameter family.

3. Inside the family select the “Pr3 - 3”, Pr3 on the bottom display, the current password value “3” on the top display. Push the SET key to change the value that now is blinking.

4. Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.

5. The top display blinks for some seconds and then shows the next parameter

6. Exit the programming pushing SET + UP together or wait the timeout.

Inside the Pr3 level it is possible to change also the Pr1 and Pr2 passwords.

11.5 ENTER THE PROGRAMMING LEVEL PR1

Enter the Pr1 “User level ”:

1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display shows Pr1 labels.

2. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr1 password. Push SET and, if the value is correct, top display will show the first family of parameters “ALL”. Otherwise set the password again.

3. Select a parameter family with DOWN or UP keys.

4. Push SET to enter, the bottom display shows the first available parameter label while the top display shows its value.

The user can shows and modify all the parameters belonging to this family.

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Parameter status, leds and bottom display in Pr1

• If the selected parameter can not be changed the leds 1 and 2 are blinking.

• In Pr1 level the user can not see and change any parameter of Pr2 and Pr3.

• The MENU key allows to exit from a family to reselect another without exit the Pr1 level.

• To exit completely the programming push SET + UP.

11.6 ENTER THE PROGRAMMING LEVEL PR2

Enter the Pr2 “maintenance level ”:

1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display shows Pr1 labels.

2. Push UP key for 2 seconds and the top display will show Pr2.

3. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr2 password. Push SET and, if the value is correct, top display will show the first family of parameters “ALL”. Otherwise set the password again.

4. Select a parameter family with DOWN or UP keys.

5. Push SET to enter, the bottom display shows the first available parameter label while the top display shows its value.

The user can shows and modify all the paramters belonging to this family. Parameter status, leds and bottom display in Pr2

• Leds 1 / 2 are blinking: the parameter can not be changed.

• All the leds are off: the parameter ca not be seen in Pr1 level.

• Led 3 is on: the parameter can be seen in Pr1 level.

• Leds 1 / 2 are blinking and led 3 is on: the parameter can be showed and changed in Pr2, showed but not changed in Pr1.

• Leds 1 / 2 / 3 are blinking: the parameter can be showed and changed in Pr2 and in Pr21.

• In Pr2 level the user can not see and change any parameter of Pr3 level.

• The MENU key allows to exit from a family to reselect another without exit the Pr2 level.

• The MENU key allows to pass to Pr1 starting from a family label.

• To exit completely the programming push SET + UP.

11.7 ENTER THE PROGRAMMING LEVEL PR3

Enter the Pr3 “OEM level ”:

1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display shows Pr1 labels.

2. Push UP key for 2 seconds and the top display will show Pr2.

1. Push UP key again for 2 seconds and the top display will show Pr3

3. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr3 password. Push SET and, if the value is correct, top display will show the first family of parameters “ALL”. Otherwise set the password again.

4. Select a parameter family with DOWN or UP keys.

5. Push SET to enter, the bottom display shows the first available parameter label while the top display shows its value.

The user can shows and modify all the paramters belonging to this family.

Parameter status, leds and bottom display in Pr3

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

• Leds 1 / 2 are blinking: the parameter can not be changed.

• All the leds are off: the parameter is available only in Pr3.

• Led 4 on: the parameter can be changed also in Pr2.

• Led 4 blinking: the parameter is visible also in Pr2 .

• Leds 3 / 4 on: the parameter is available in Pr2 and in Pr1.

• Leds 3 / 4 blinking: the parameter is visible in Pr1 and in Pr2.

• The MENU key allows to exit from a family to reselect another without exit the Pr2 level.

• The MENU key allows to pass to Pr1 starting from a family label.

• To exit completely the programming push SET + UP.

11.8 MOVE A PARAMETER LEVEL FROM PR2 TO PR1

Enter Pr2 programming level

Select the parameter and if the led # 3 is off: the parameter is available only in Pr2.

To show the parameter also in Pr1:

1. Keep pushed SET key;

2. Push 1 time the DOWN key and the led 3 should be on, the parameter is now available in Pr1. To hide the parameter in Pr1:

1. Keep pushed SET key;

2. Push 1 time the DOWN key and the led 3 should be off, the parameter is now removed from Pr1.

11.9 MOVE A PARAMETER FROM PR3 TO PR2 TO PR1

Enter Pr3 programming level, here the parameter are all visible:

Select the parameter, if all the leds are off the parameter is available only in Pr3.

To show the parameter also in Pr2 and Pr1:

1. Keep pushed SET key;

2. Push 1 time the DOWN key and the leds 3 and 4 should be on, the parameter is now available also in Pr2 / Pr1. To show the parameter only in Pr2:

1. Keep pushed SET key;

2. Push 1 time the DOWN key and the leds 3 is off, the parameter is now available also in Pr2. To show the parameter only in Pr3:

1. Keep pushed SET key

2. Push 1 time the DOWN key and the leds 3 and 4 are off, the parameter is now available only in Pr3.

11.10 VISIBILITY AND PARAMETER VALUE LOCKED

To set the only visibility and lock the parameter value it is necessary enter Pr3 programming level. Pr1 PARAMETER VISIBILITY

Enter the Pr3 level

1. Select the parameter;

2. Keep pushed the SET key;

3. Push 1 time the MENU key and the led 3 change from on to blinking: the parameter is visible in Pr1 but can’t be changed.

Pr2 PARAMETER VISIBILITY

Enter the Pr3 level

1. Select the parameter;

2. Keep pushed the SET key;

3. Push 1 time the MENU key and the led 4 change from on to blinking the parameter is visible in Pr2 but can’t be changed.

Leds 3 / 4 blinking: the parameter is visible in Pr1 and in Pr2 but in those levels now they can’t be changed.

TO SET THE ORIGINAL TAG FOR THE PARAMETER Pr1 / Pr2

1. Keep pushed the SET key;

2. Push one time the MENU key, the leds 3 / 4 turn on, the parameter can be seen and modified in Pr1 and Pr2.

11.11 PROGRAMMING: DIGITAL INPUT AND OUTPUT POLARITY

The parameters that allow to configure different options such as:

1. Digital inputs

2. Digital outputs (relay)

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3. Proportional output configured as ON/OFF

4. Analogue input configured as digital input

have a different parameter description that allows to configure the operating mode and the corresponding polarity.

Example of programming:

The bottom display shows the parameter label (CF36) Digital input ID1 configuration; Note that the top display shows “c” or “o” before the configuration number.

The selection 7 for the digital input ID1 (CF36) means that it is the “high pressure switch of circuit 1”. The label “o” means that the digital input is active for open contact.

Otherwise if the selection is 7 for the digital input ID1 (CF36) = “high pressure switch of circuit 1”. The label “c” means that the digital input is active for closed contact.

11.12 CHANGE THE POLARITY OF THE DIGITAL INPUTS-OUTPUTS

Enter the programming:

1. Select a parameter with digital input/output value, The top display shows the label o before the configuration number while the bottom display shows the parameter label.

2. Push SET key: the o label and the configuration number are blinking, use the UP or DOWN key and select the proper polarity ( o / c ) of the function, then push SET key to confirm it all.

3. The top display blinks for some seconds and then it will shows the next parameter.

4. To exit the programming push SET + UP together or wait the timeout (15seconds).

12 SELECTION AND START OF THE RUNNING MODE

12.1 SELECT THE CHILLER OR THE HEAT PUMP MODE

The CF79 parameter allows to select and enable the running mode:

Par. CF79 = 0: Through keyboard, the user can start and stop the unit using the keys of the front panel.

Par. CF79 = 1: Through digital input programmed to start/stop the unit from remote control.

• This selection is enabled if there is one digital input configured as start/stop from remote (remote chiller / heat pump). I non of the digital input are configure the unit remains in stand–by.

• The “open” status of the input forces the chiller running mode.

• The “closed” status of the input forces the heat pump running mode.

• The keyboard selection is disabled.

• The key on the front panel can start/stop the unit only with the digital input selection

Par. CF79 =2: Automatic selection of the Chiller - Heat Pump through analogue input The analogue input selection or change over function overrides the digital input C-HP function. If the external air temperature are within the CF81 differential, the user can change the running mode from the keyboard. If the unit is running with CF79 = 1 or CF79=2, and it is requested a running mode change, the controller turns off all the outputs, starts a fixed delay time signalled by the chiller or heat pump blinking led. This blinking led indicates which running mode will be activated after the compressor delay time protection.

12.2 CHANGE OVER

To change the running status the following condition must be respected otherwise the unit remains in stand - by:

1. CF02=1 (heat pump selected)

2. CF79=2 and a NTC probe configured as NTC external air temperature for dynamic setpoint/ boiler / change over

3. This probe is working properly.

Parameters involved with the change over function: CF80 Change over Setpoint. If the analogue input control (from probe) function is enabled, it represents the limit temperature of the probe value under which the unit runs the Heat Pump mode. CF81 Change over Differential. If the analogue input control (from probe) function is enabled, it represents the limit differential temperature of the probe value to restart in the Chiller mode. For external air temperature within CF81 the user can manually change the status from keyboard.

GRAPH: AUTOMATIC CHANGE OVER

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

12.3 CHILLER – HEAT PUMP FUNCTIONING MODE

IT IS DEFINED BY THE PARAMETER CF78.

12.4 KEYBOARD SELECTION

CF78 = 0: pushing key the unit starts in chiller, pushing key the unit starts in heat pump

CF78 = 1: pushing

key the unit starts in heat pump, pushing key the unit starts in chiller

12.5 ANALOG INPUT SELECTION

CF78 = 0 NTC, External air temperature probe > CF80+ CF81 the unit starts in chiller, NTC, External air temperature probe < CF80

the unit starts in heat pump.

CF78 = 1 NTC, External air temperature probe > CF80+ CF81

the unit starts in chiller, NTC, External air temperature probe < CF80

the unit starts in heat pump.

13 UNIT START- STOP

The unit start sotp can be done from one of the following operations:

• From keyboards

• RTC Time table

• Digital input configured as remote ON/OFF

13.1 START – STOP AND STAND- BY FROM KEYBOARD

TURN THE UNIT ON IN CHILLER OR HEAT PUMP MODE FROM THE KEYBOARD

Push and release the

key allows to start in chiller mode if CF78 =0, in heat pump if CF78 =1. When the unit is running the corresponding led is on. INPORTANT: To change from chiller to heat pump and viceversa the unit must be set in stand-by before continuing.

Push and release the

key allows to start in heat pump mode if CF78 =0, in chiller if CF78 =1er. When the unit is running the corresponding led is on. INPORTANT: To change from chiller to heat pump and viceversa the unit must be set in stand-by before continuing.

STAND- BY ( OR UNIT OFF, NOT RUNNING)

The unit is considered in stand by when the leds

and are both off. The stand-by is reached each time the Chiller or

the Heat Pump are turned off. During the stand by the user can:

• Show all the probe measurements

• Detect and reset the alarm events.

13.2 UNIT START- STOP FROM DIGITAL INPUT

Turn on or off the unit from digital input

Set the digital input as remote ON/OFF, depending on the input polarity it can generate the unit off

• The digital input overrides the keyboard command.

• The keyboard can run only if the digital input is not active.

• When the digital input is not active the instrument restore its status (had before the digital input activation).

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14 DISPLAY LAYOUT

As default, In normal condition, the display shows the circuit 1 information. The displayed circuit is indicated from the corresponding led Cir1 on (UP key), or Cir2 (circuit 2, DOWN key).

14.1 HOW TO SHOW THE MEASUREMENT LIST.

With the led Cir1 on, push UP or Down keys to display the labels of the information of the circuit 1. With the led Cir2 on, push UP or Down keys to display the labels of the information of the circuit 2. Each measurement is defined by a label that indicates which if it is a pressure a temperature or a time.

14.2 SHOW THE CIRCUIT 1 OR 2

To swap between the information of the two circuits use the UP and DOWN key to select a label then push SET, check the led.

Example in fig.1 Led cir1 is on: the top display shows the value of the output evaporator temperature ( 7.8°C) of the circuit 1, The bottom display shows Out 1. Push SET key to swap to the circuit 2. Fig2 Led cir2 is on: the top display shows the value of the output evaporator temperature ( 7.9°C) of the circuit 2, the bottom display shows

Out 2.

Fig.1

Fig.2

15 CUSTOM DISPLAY

The dP family of parameters allows to set a custom display read-out. The user can change the default read-out (both

for instrument and remote terminals) of the measurements depending on the application.

Top Display

Bottom display

15.1 DEFAULT READ - OUT OF THE TOP DISPLAY

To set the default value displayed on the top display:

1. Set the parameter dP03 = 0, it means configurable;

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2. Select the dP01 parameter into the range 0..14 descripted here below:

PARAMETER

VALUE

DESCRIPTION

CORRESPONDING

LABEL

dP01=0 No display read out No label

dP01=1 NTC temperature probe of the evaporator water inlet Ein

dP01=2 NTC temperature probe of the evaporator water outlet 1 and 2

Out1 circuit 1 Out2 circuit 2

dP01=3 NTC temperature probe of the uscita common evaporator water outlet Eout

dP01=4 NTC temperature probe of the condenser water inlet

CIn1 circuit 1 CIn2 circuit 2

dP01=5 NTC temperature probe of the common condenser water inlet Cin

dP01=6 NTC temperature probe of the condenser water outlet

Cou1 circuit 1 Cou2 circuit 2

dP01=7 NTC temperature probe of the common condenser water outlet Cout

dP01=8 NTC temperature probe of the dynamic external air setpoint Et

dP01=9 NTC temperature probe of the free cooling water inlet FCIn

dP01=10 NTC temperature probe of the free cooling external air value FCEt

dP01=11 NTC temperature probe of the remote terminal 1 trt1

dP01=12 NTC temperature probe of the remote terminal 2 trt2

dP01=13 NTC temperature probe of the combined defrost

dEF1 circuit 1 dEF2 circuit 2

dP01=14 NTC temperature probe of the condenser

Cdt1 circuit 1 Cdt2 circuit 2

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15.2 DEFAULT READ - OUT OF THE BOTTOM DISPLAY

To set the default value displayed on the bottom display:

1. Set the parameter dP03 = 0, it means configurable;

2. Select the dP02 parameter into the range 0..17 descripted here below:

PARAMETER

VALUE

DESCRIPTION

CORRESPONDING

LABEL

dP02=0 No display read out No label

dP02=1 NTC temperature probe of the evaporator water inlet Ein

dP02=2 NTC temperature probe of the evaporator water outlet 1 and 2

Out1 circuit 1 Out2 circuit 2

dP02=3 NTC temperature probe of the common evaporator water outlet Eout

dP02=4 NTC temperature probe of the condenser water inlet

CIn1 circuit 1 CIn2 circuit 2

dP02=5 NTC temperature probe of the common condenser water inlet Cin

dP02=6 NTC temperature probe of the condenser water outlet

Cou1 circuit 1 Cou2 circuit 2

dP01=7 NTC temperature probe of the common condenser water outlet Cout

dP02=8 NTC temperature probe of the dynamic external air setpoint Et

dP02=9 NTC temperature probe of the free cooling water inlet FCIn

dP02=10 NTC temperature probe of the free cooling external air value FCEt

dP02=11 NTC temperature probe of the remote terminal 1 trt1

dP02=12 NTC temperature probe of the remote terminal 2 trt2

dP02=13 NTC temperature probe of the combined defrost

dEF1 circuit 1 dEF2 circuit 2

dP02=14 NTC temperature probe of the condenser

Cdt1 circuit 1 Cdt2 circuit 2

dP02=15 Pressure probe of the condenser 4÷20mA - 0.5V

Cdt1 circuit 1 Cdt2 circuit 2

dP02=16 Pressure probe of the evaporator 4÷20mA - 0.5V

LP1 circuit 1 LP2 circuit 2

dP02=17 Clock

TOP DISPLAY: CUSTOM EXAMPLE

Parameter dP01=01. The default read out for the circuit 1 and the circuit 2 is the NTC probe value of the evaporator water inlet. Parameter dP01=02. The default read out for the circuit 1 is the evaporator outlet 1 temperature, while for the circuit 2 is the evaporator 2 outlet temperature.

BOTTOM DISPLAY: CUSTOM EXAMPLE

Parameter dP02=03. The default read out for the circuit 1 and the circuit 2 is the NTC probe value of the evaporator water outlet. Parameter dP02=14. The default read out for the circuit 1 is the condenser 1 temperature, while for the circuit 2 is the condenser 2 temperature.

15.3 FORCED READ - OUT OF THE TOP AND BOTTOM DISPLAY

To force the display read-out:

1. Set the dP03 parameter not equal to 0

2. Select the value range 1..3 These configurations allow to show together two temperatures or two pressures of the same circuit in order to have an easier reading of the measurements: Par. dP03 = 1

Top display: for both the circuits 1,2:

• Evaporator water inlet, with the Ein label. Bottom display: circuit 1:

• Evaporator 1 water outlet, with the label OuT1

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Bottom display: circuit 2:

• Evaporator 2 water outlet, with the label OuT2. Par. dP03 = 2

Top display of the circuit 1:

• Condenser 1 water inlet temperature with the label CIn1 Bottom display of the circuit 1

• Condenser 1water outlet with the label COu1. Top display of the circuit 2: Condenser 2 water inlet temperature with the label Cin2 Bottom display of the circuit 2

• Condenser 2water outlet with the label Cou2. Par. dP03 = 3

Top display of the circuit 1:

• Condenser probe temperature Cdt1 / pressure CdP1 Bottom display of the circuit 1

• Evaporator pressure probe LP1 Top display of the circuit 2: Condenser probe temperature Cdt2 / pressure CdP2 Bottom display of the circuit 2 Evaporator pressure probe LP2

15.4 DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S

If the parameter dP04 = 0 the upper display of the remote panels #1 and #2 depends on the parameter values dP01 – dP02 – dP03; to show the temperature detected by the internal probe of the remote panel accessing the function menu under the function trEm. If the parameter dP04 = 1 the upper display of the remote panels #1 and #2 show their internal NTC sensor (ambient temperature); to show the same temperature it is possible to eccess the function menu under the function trEm.

15.5 DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S

16 DISPLAY INFORMATION

16.1 SHOW THE SET POINT VALUE

Push and release the SET key, the leds of the circuits are off and the set value is displayed. In stand-by the bottom display shows SetC (set chiller), by pushing SET again the next label is SetH (set heat pump ). If the unit is running the only set displayed is related to the running mode.

16.2 MODIFY THE SET POINT

1) Push SET key for at least 3 seconds: the leds of the circuits are off and the set value is blinking.

2) Use the UP or DOWN key to modify the setpoint.

3) Push SET to confirm or wait the timeout (15seconds).

16.3 SHOW THE ACTIVE SETPOINT DURING ENERGY SAVING OR DYNAMIC SETPOINT

If the unit is running in chiller or HP, the Energy Saving or the Dinamic Setpoint activity is signalled by the blinking led of the SET button.

Chiller mode: push SET one time, the bottom display shows the SEtC (set chiller) while the top display shows the set value. Only if the Energy saving or the Dynamic Setpoint are active, pushing another time the SET key, the bottom display shows “SEtr” (real setpoint), and the top display shows the setpoint that the unit is really using for the thermoregulation. Chiller mode: push SET one time, the bottom display shows the SEtH (set Heat pump) while the top display shows the set value. Only if the Energy saving or the Dynamic Setpoint are active, pushing another time the SET key, the bottom display shows “SEtr” (real setpoint), and the top diplay shows the setpoint that the unit is really using for the thermoregulation.

ATTENTION

The SEtr label appears only if the Energy saving or the Dynamic Setpoint are active. To modify the working setpoint it is necessary the setpoint values is displayed on both the display (temperature / temperature or temperature / pressure o pressure/ pressure) without any identification label, otherwise the SET key swaps to the circuit information.

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16.4 DISPLAY IN REMOTE OFF

From digital input configured as remote ON/OFF: the active input sets the unit in OFF (even when the unit is a motocondensing unit). The top display shows “OFF ”, the led of the decimal point is blinking.

16.5 DISPLAY IN MOTOCONDENSING CONFIGURATION

The top display shows “ON” for active input and “OFF” for not active input. If the unit is running in Chiller the top display shows OnC otherwise OnH for heat pump. The configuration for motocondensing, as for chiller or HP, allows to show through the top and the bottom display all the detected input measurements and alarms.

17 FUNCTION MENU “ M” KEY

The function Menu is composed of the following items:

1) Show and reset the alarms ALrM

2) Compressor overload alarm reset COtr

3) Show and reset the alarm log ALOG

4) Upload the parameter into the Hot Key UPL

5) Enable – disable one or the two circuits CrEn

6) Enable – disable one of the compressors COEn

7) Display the compressor discharge temperature COdt

8) Show and reset the number of compressor running hour Hour

9) Show and reset the number of compressor starts-up COSn

10) Show the condensing fan speed percentage of the proportional output Cond

11) Show the percentage of the proportional output 0 ÷ 10 Vdc Pout

12) Time counting to next defrost cycle, under heat pump mode, dF

13) Show the probe temperatures that enabled to control the auxiliary output uS

14)

Show the probe the temperature of the remote panels trEM

MENU FUNCTION ACCESS: Push and release the M key. MENU FUNCTION ACCESS: Push and release the M key or wait the 15seconds timeout limit. With the UP or DOWN keys move inside the label list.

17.1 ALARM LIST: SHOW AND RESET

ALrM FUNCTION

Enter the function MENU pushing M key one time

1) Use the UP or DOWN to select the AlrM label

2) Push SET key (Nothing happens if there are no active alarm events)

3) Bottom display: alarm label code. Top display: label rSt to reset or NO if it is not possible.

4) Use the UP or DOWN to scroll the alarm list.

5) Pushing SET when the rSt label is displayed the corresponding alarm will be reset, then the display shows next alarm in the list,

pushing SET again the alarm is reset and the display shows next alarm etc. Nothing happens by pushing SET when the label NO is displayed, in this case push UP or DOWN to move to another alarm label.

6) To exit the ALrM reset function push MENU one time or wait the timeout.

17.2 COMPRESSOR OVERLOAD ALARM RESET

COtr function resets the compressor overload alarm event.

Within the COtr function all the active compressor overload alarms are displayed in a list. Labels involved in COtr: CO1r = compressor 1 overload reset … CO6r = compressor 6 overload reset. Labels CO1r – CO2r – CO3r – CO4r – CO5r - CO6r are available if the digital inputs have been previously configured.

ATTENTION

In the COtr function the alarm is displayed only after the number of events per hour have reched the Par. AL20 value,only after that number of events per hour the alarm becomes MANUAL.

MANUAL ALARM RESET PROCEDURE Enter Menu function

1. Use UP or DOWN key and select the COtr on the bottom display.

2. Push SET one time, if there are active alarms the bottom display shows the alarm label eg. CO1r (for compressor 1) while the top

display shows the label rSt to reset the alarm or NO if the alarm can not be reset. Use the UP or DOWN keys to scroll all the alrm list.

3. Nothing happens by pushing SET when the label NO is displayed.

4. Pushing SET when the rSt label is displayed the corresponding alarm will be reset after the password: bottom display = ArSt while

the top display = PAS.

5. Push SET and the top display blinks 0 while the bottom shows PAS. Insert the password using UP or DOWN key (see AL

parameter family). If the password is OK the ArSt blinks for per 3seconds, if the password value is not correct the top display blinks 0 while the bottom shows PAS. If within 5 seconds no value is inserted the display label come back to CO1r function.

6. To exit the COtr function push MENU or wait the timeout.

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7. Repeat operation 1 – 5 to reset the other alarms.

17.3 COMPRESSOR OVERLOAD PASSWORD.

The default value is 0 to change this value enter Pr3 level under the AL parameter family

17.4 ALARM LOG LIST

ALOG FUNCTION TO SEE THE ALARM LOG

The function and the alarm codes are visible only if there are alarm events. If many events are active at the same time the list displayed by increasing order. Enter the function Menu

1. Select ALOG

2. Push SET one time. Nothing happens if there are no active alarm events.

3. The bottom display shows the alarm label, the top display shows the a number in the range 00 to 99.

4. Use the UP or DOWN keys to scroll the list.

5. To exit the ALOG function push MENU or wait the timeout.

17.5 ERASE THE ALARM LOG LIST

ALOG FUNCTION TO ERASE THE LOG LIST

1. Enter the function Menu.

2. Use the UP or DOWN keys to select ALOG on the bottom display.

3. Push on e time the SET key.

4. Within the ALOG function select with UP or DOWN keys, the ArSt label on the bottom display while the top display shows PAS.

5. Push SET: the bottom display shows PAS and the top display a blinking 0.

6. Insert the password (See parameter family AL)

7. If the password is OK the label ArST blinks for 5 seconds then the display returns to normal condition read-out (probes).

8. If the password is not correct the display shows PAS again. in any case is possible to scroll the list with UP or DOWN

9. To exit push the M key one time or wait the timeout.

17.6 PASSWORD VALUE OF THE ALARM LIST

The default value is 0 to change this value enter Pr3 level under the AL parameter family.

THE ALARM LIST CONTAINS 100 EVENTS IN A FIFO STRUCTURE. WHEN THE MEMORY IS FULL ANY NEW ALARM WILL ERASE THE OLDEST.

17.7 DISABLE – ENABLE A SINGLE CIRCUIT

Through the instruments keyboard is possible to completely disable a single circuit for maintenance or to use just a cooling part of of the unit.

CrEn FUNCTION enables – disables a circuit from keyboard. Label involved with CrEn function: Cr1E = circuit 1, Cr2E = circuit 2

DISABLE A CIRCUIT

Enter the function Menu

1. Use UP or DOWN keys to select CrEn on the bottom display

2. Push SET key: the bottom display = Cr1E, top display = En.

3. Select the circuit 1 or 2 with UP or DOWN (Cr1E or Cr2E).

4. Push SET key for 3 seconds when one of the two Cr1E, Cr2E label are displayed. The top display shows the En blinking label,

use the UP or DOWN to change in diS (Disabled) or En (Enabled). then push SET key to confirm the new selection. The display shows next circuit status.

5. To exit the CrEn function push MENU key or wait the timeout.

17.8 READ-OUT OF A CIRCUIT NOT ENABLED

If one circuit is disabled the bottom display shows diS alternated with the label name of the measurement selected. Circuit 1 = diS the bottom display shows b1dS = circuit 1 disabled. Circuit 2 = diS the bottom display shows b2dS = circuit 2 disabled. The b2dS label appears only if the 2

circuit is configured,

17.9 ENABLE OR DISABLE A SINGLE COMPRESSOR

Through the instruments keyboard is possible to disable a single compressor for maintenance or to lock it when malfunctioning . COEn FUNCTION compressors running status. Label involved in COEn function: CO1E = Compressor 1 status… CO6E = Compressor 6 status The COEn function uses only the compressors configured by the corresponding output parameters. Enter the function Menu

1. Use the UP or DOWN keys to select COEn.

2. Push SET key: bottom display = CO1E, top display = En

3. Select the compressor with UP or DOWN: CO2E - CO3E - CO4E - CO5E - CO6E if available.

4. Push SET for 3 seconds when the label corresponds to the compressor to disable: CO1E - CO2E - CO3E - CO4E - CO5E - CO6E.

The top display shows the blinking En label, use the UP or DOWN key and change to diS (Compressor disabled) or En (compressor enabled) then push SET to confirm, the display shows next item.

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5. To exit the COEn function push MENU key or wait the timeout.

17.10 READ-OUT OF A COMPRESSOR NOT ENABLED

During the normal running condition a disabled compressor is displayed with a blinking label alternated with the measurement value of the display. If the compressor is disabled these the corresponding labels: C1dS = compressor 1 disabled…C6dS = compressor 6 disabled The label C1dS…C6dS are available only if the corresponding compressor is configured.

17.11 READ-OUT OF THE COMPRESSOR DISCHARGE TEMPERATURE PROBE

The menu function allows to read-out the compressor temperature probes. COdt FUNCTION shows the discharge temperatures Label involved in Codt function: CO1t Compressor 1 discharge temperature… CO6t Compressor 6 discharge temperature

1. Use the UP or DOWN keys to select COdt

2. Push SET key: bottom display = CO1t, top display = temperature value of that probe.

3. Use the UP or DOWN kys to scroll the list: CO1t or CO2t or CO3t or CO4t or CO5t or CO6t

4. To exit the COEn function push MENU key or wait the timeout

ATTENZIONE

The labels Codt are available only if the corresponding compressor probe is configured. The display resolution is 0.1°C until the read-out is 99.9, over 100°C it is 1°C.

17.12 READ-OUT OF THE RUNNING HOURS

This menu allows to shows all the time running hours of the compressors, supply fan and pumps. Hour FUNCTION to show the controlled load consumption Label involved in the Hour function:

CO1H Compressor 1 running hours .. CO6H Compressor 6 running hours. EP1H Evaporator water pump or Supply fan running hours (air/air) EP2H Support evaporator water pump running hours CP1H Condenser water pump running hours CP2H Support condenser water pump running hours

The labels are displayed only if the corresponding output is present and configured. The running hours is displayed on the top display, the resolution is x 10 hours (eg 2 means 20 hours, 20 means 200hours)

Enter the function Menu

1. Use the UP or DOWN keys to select Hour

2. Push SET key: bottom display = above labels, top display = hours x10. The time

is on.

3. Use the UP or DOWN keys to scroll the list.

4. To exit the Hour function push MENU key or wait the timeout

17.13 RESET THE RUNNING HOUR

Enter the function Menu

1. Within the Hour function select, with UP or DOWN, the interested label: CO1H, CO2H, CO3H, CO4H, CO6H, EP1H, EP2H, CP1H,

CP2H.

2. Push the SET keys for 3seconds: the top display shows the running hours blinking value, then it shows 0 to confirm the reset. The

next load label is automatically loaded.

To exit the Hour function push MENU key or wait the timeout

17.14 READ-OUT OF THE COMPRESSOR STARTS-UP

For each compressor is possible to show the number of starts-up. COSn FUNCTION: number of starts-up of the compressor Label involved in COSn function: C1S number of compressor 1 starts-up .. C6S number of compressor 6 starts-up The labels are displayed only if the corresponding output is present and configured The number of starts-up is displayed on the top display, the resolution is x 10 (eg 2 means 20 starts, 20 means 200starts)

Enter the function Menu

1. Use the UP or DOWN keys to select COSn.

2. Push SET one time: the label of the first load C1S is showed on the top display, the bottom display shows the number x10.

3. With UP or DOWN scroll the compressor list.

4. To exit the Hour function push MENU key or wait the timeout

17.15 RESET THE STARTS-UP NUMBER

Enter the function Menu

1. Within the Hour function select, with UP or DOWN, the interested label: CS1, CS2, CS3, CS4, CS6.

2. Push the SET keys for 3seconds: the top display shows the running hours blinking value, then it shows 0 to confirm the reset. The

next load label is automatically loaded.

3. To exit the Hour function push MENU key or wait the timeout.

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17.16 READ-OUT OF THE PROPORTIONAL OUTPUT PERCENTAGE OF THE CONDENSER FAN

CONTROL

The proportional outputs of the two circuits, that control the fan speed, can be showed in the menu function. Cond FUNCTION selects the proportional output 1 and 2. Label involved in Cond function.

Cnd1 Proportional output status of the condenser fan of the circuit 1. Cnd2 Proportional output status of the condenser fan of the circuit 2.

TO SEE THE OUTPUT PERCENTAGE:

Enter the function menu

1. Use the UP or DOWN keys to select

Cond.

2. Push SET key: the bottom display shows Cnd1, the top display shows the output percentage.

3. Use the UP or DOWN keys to select Cnd1 or Cnd2, the top display always shows the value, between 0% and 100%, of the

proportional output of the selected circuit.

4. To exit the Hour function push MENU key or wait the timeout.

17.17 READ-OUT OF THE FOUR PROPORTIONAL OUTPUT

The four proportional outputs, 4..20ma or 0-10V, can be showed in the menu function. Pout FUNCTION selects the proportional outputs. Label involved in Cond function:

Pou1 Proportional output for dumper control or to drive the external relay 1 Pou2 Proportional output for dumper control or to drive the external relay 2 Pou3 Proportional output for dumper control or to drive the external relay 3 Pou4 Proportional output for dumper control or to drive the external relay 4

The labels are displayed only if the corresponding output is present and configured.

TO SEE THE FOUR OUTPUT PERCENTAGE:

Enter the function menu

1. Use the UP or DOWN keys to select

Pout.

2. Push SET key: the bottom display shows Pou1, the top display shows the output percentage.

3. Use the UP or DOWN keys to select Pou1, Pou2, Pou3 or Pou4 the top display always shows the value, between 0% and 100%,

of the proportional output of the selected circuit.

4. To exit the Hour function push MENU key or wait the timeout.

ATTENTION: If the proportional output Pou1 - Pou2 - Pou3 - Pou4 are configured to drive an external relay the display will show 0=relay off and 100=relay on.

17.18 READ-OUT OF THE TIME COUNTING TO THE NEXT DEFROST

The 2 times delay to next defrosts of the two circuits can be showed in the menu function. dF FUNCTION time to next defrost. Label involved in dF function:

dF1 delay time to next defrost of the circuit 1 dF2 delay time to next defrost of the circuit 2

The labels apperas on if the heat pump configuration is enabled.

Enter the function menu :

1. Use the UP or DOWN keys to select

2. Push SET key: the dF1 label is showed on the top display, the bottom display shows the time delay to next defrost in minutes /

seconds. The

icon is on.

3. Use the UP or DOWN keys to select dF1 or dF2.

4. To exit the Hour function push MENU key or wait the timeout.

17.19 READ-OUT OF THE PROBES CONFIGURED TO CONTROL AN AUXILIARY OUTPUT RELAY

The probe values, configured to control the auxiliary relay output, can be showed in the menu function. uS FUNCTION temperature/pressure value of the control probe for auxiliary output. Label involved in uS function:

uSt1 auxiliary probe value of the circuit 1 uSt2 auxiliary probe value of the circuit 2

Enter the function menu

1. Use the UP or DOWN keys to select uS.

2. Push SET key: the label uSt1 (temperature probe ) or uSP1 (Pressure probe) is showed on bottom display, the top display shows

the the temperature or pressure value.

3. Use the UP or DOWN keys to select uSt1 auxiliary probe for circuit 1or uSt2 auxiliary probe for circuit 2.

4. To exit the Hour function push MENU key or wait the timeout.

17.20 HOW TO DISPLAY THE TEMPAERATURE OF THE INTERNAL TEMPERAURE SENSOR OF THE

REMOTE TERMINALS 1 OR 2

Inside the funcion menu it is possible to see the ambient temperature detected by the NTC sensor

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FUNCTION trEM to show the temperature of the remote panels Identification label trEM.

trE1 value of the NTC probe of the remote #1 trE2 value of the NTC probe of the remote #2

Select with UP or DOWN the trEM function Push SET the trE1 or trE2 label is shown on the bottom display, the top display shows the probe value. Use the UP or DOWN arrow to change beteween trE1 or trE2 read-out. To exit to the normal display read-out push MENU or wait the time – out time.

ATTENTION:

THE trEm function and the labels trE1 or trE2 appear only if the CF74 = =2 or 3 (remote panel 1 configuration) or if the parameter CF75 = 2 or 3 (remote panel 2 configuration).

18 ENERGY SAVING

18.1 ENERGY SAVING FROM DIGITAL INPUT

The energy saving is activated when one of the digital input configured as energy saving is ACTIVE. The energy saving activation is signalled by the SET key led on. When working in Chiller or HP the first pressure on SET key shows the actual setpoint SetC (chiller) or SetH (HP) labels while the top display shows the set value. If the energy saving is active the next pressure on the SET key shows the label “SEtr” (real setpoint), and the top display shows the real set value active in that moment. During the Energy Saving cycle the setpoint is incremented with these parameter values ES14 / ES16: SET + ES14 for Chiller mode and SET + ES16 for HP mode. The differential values, during the energy saving thermoregulation, are defined with parameter ES15 for chiller mode and ES17 and HP mode.

18.2 ENERGY SAVING TIME TABLE WITH RTC

The Energy Saving function with a daily RTC time table is available only if the RTC circuit (optional) is on board. This function allows to set three start and stop energy saving daily periods (ES1..ES2, ES3..ES4, ES5..ES6). The energy saving activation is signalled by the SET key led on. When working in Chiller or HP the first pressure on SET key shows the actual setpoint SetC (chiller) or SetH (HP) labels while the top display shows the set value. If the energy saving is active the next pressure on the SET key shows the label “SEtr” (real setpoint), and the top display shows the real set value active in that moment. During the Energy Saving cycle the setpoint is incremented with these parameter values ES14 / ES16: SET + ES14 for Chiller mode and SET + ES16 for HP mode. The differential values, during the energy saving thermoregulation, are defined with parameter ES15 for chiller mode and ES17 and HP mode.

The function can work if the following requirements are satisfied:

1. RTC circuit mounted.

2. Parameters ES01…ES06 are not equal to 0 and are not programmed with the same value.

18.3 RTC DAILY TIME TABLE PROGRAMMING

This function can be also used to turn ON or OFF the unit.

Enter parameter programming:

1. Select with UP or DOWN keys the ES parameter family.

2. Within the ES parameters select with UP or DOWN keys the parameters ES01…ES06 to determine the start and stop of the

energy saving daily periods.

Example

Set the energy saving start with ES01 and the energy saving stop time ES02 of the first period: If ES01 = 8.0 ES02 = 10.0 the energy saving setpoint is active from 8 to 10. If ES01 = 23.0 ES02 = 8.0 the energy saving setpoint is active from 23 (11pm) to 8 (8 am) in the morning of the next day. If necessary repeat the operation for the others two time periods defined by ES03…ES04 and ES05…ES06.

18.4 ENERGY SAVING OR UNIT ON/OFF ACTIVATION WITH RTC PROGRAMMING

Enter the parameter programming:

1. Select with UP or DOWN keys the ES parameter family.

2. Within the ES parameters select with UP or DOWN keys the parameters ES07 (Monday)…ES13 (Sunday) to determine which

days to include.

Configuration table Energy saving or unit ON/OFF activation with rtc programming

Par. ES07 – ES13 0= RTC not enabled

1= 1

period enabled

2= 2

period enabled

3= 1

and 2nd periods enabled

4= 3

period enabled

5= 1

and 3rd periods enabled

6= 2

and 3rd periods enabled

7= 1

, 2nd and 3rd periods enabled

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Energy saving or unit ON/OFF with RTC and X Y

where: X with range 0..7 represents the energy saving where: Y with range 0..7 represents the unit on/off

Example of a daily programming:

Monday Enater parameter programming

1. In the ES parameter family, select the parameter ES07, the top display shows 0 - 0

2. Push SET key: the top display shows 0 - 0 blinking, with UP or DOWN keys select the corresponding function (see next table) :

3. Push SET to confirm.

4. Push SET + UP to exit the programming or wait the programming timeout.

MONDAY X = 0 - Y= 0: The energy saving and the unit on/off are both disabled:

MONDAY X = 0 - Y= 1 energy saving is disabled, and unit on/off will follow the first RTC period ES1..ES2.

MONDAY X = 3 - Y= 7: energy saving enabled during the 1

and 2nd RTC periods, unit on/off enabled during the 1st, 2nd 3rd periods.

WEEKLY PROGRAMMING

Repeat the daily programming for the other days of the week using parameters ES08..ES13.

19 DYNAMIC SETPOINT

The dynamic setpoint allows to increase or decrease the setpoint with a proportional value determined by Sd01 (chiller) and Sd02 (HP) that depends from the 4..20mA analogue input or from the external air temperature probe. This function allows to save energy or run the unit when the external ambient is not within the normal operative conditions.

The dynamic setpoint activation is signalled by the SET key led on. When working in Chiller or HP the first pressure on SET key shows the actual setpoint SetC (chiller) or SetH (HP) labels while the top display shows the set value. If the energy saving is active the next pressure on the SET key shows the label “SEtr” (real setpoint), and the top display shows the real set value active in that moment. The regulation is enabled if:

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• In chiller mode the parameter Sd01 is not equal to 0.

• In heat pump mode the parameter Sd02 is not equal to 0.

• a 4÷20mA analogue input is configured as dynamic setpoint control or a NTC analogue input is configured as external air

temperature for dynamic setpoint control. With UP or DOWN keys within the circuit measurement read-out is possible to show the external air temperature indicated by the Et label.

19.1 DYNAMIC SETPOINT GRAPH

4÷20ma probe configured as dynamic setpoint analogue input:

NTC probe with positive differential:

NTC probe with negative differential:

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

20 AUXILIARY RELAYS

The auxiliary relays can be configured to manage two independent, from heat pump or chiller mode, output controls. Each output can be managed with a dedicated temperature or pressure probe input ( NTC probe, 4..20mA or 0..5V transducers) or with the common available temperature or pressure configurable inputs. The probe selection is made with parameters uS02 for the circuit 1 and uS06 for the circuit 2. The function is enabled when the parameter uS01 <>0 for the circuit 1 and the parameter uS05<>0 for the circuit 2 and at least one output is configured as auxiliary output. Par. uS01 configuration auxiliary relay 1. Par. uS05 configuration auxiliary relay 2 Value and function 0 = Not enabled 1 = Function enabled, direct action, also during stand-by or remote off. 2 = Function enabled, direct action, only with unit running. 3 = Function enabled, inverse action, also during stand-by or remote off 4 = Function enabled, inverse action, only with unit running.

20.1 AUXILIARY RELAY WITH DIRECT ACTION

When: PBr < set : relay ON. Pbr > set + differential: relay OFF. Set < PBr < set + differential: previous status.

PBr = NTC probe or transducer selected by the parameters uS02 / uS06

20.2 AUXILIARY RELAY WITH INVERSE ACTION

When: PBr > set : relay ON. Pbr < set - differential: relay OFF. Set – differential < PBr < set: previous status. PBr = NTC probe or transducer selected by the parameters uS02 / uS06 If: PBr > SET: relay ON Pbr < SET– differential: Relay OFF Set – differential < of PBr < SET: previous state

PBr = NTC probe or transducer selected with uS02 / uS06 parameters

21 COMPRESSOR THERMOREGULATION

21.1 THERMOREGULATION PARAMETER DESCRIPTION

Par. ST01 Chiller Setpoint It allows to set the chiller working temperature within the range ST02..ST03. Par. ST02 Minimum setpoint limit in chiller. The user can not program a setpoint value lower than ST02, the range is –30 °C..ST01. Par. ST03 Maximum setpoint limit in chiller. The user can not program a setpoint value higher than ST02, the range is ST01..70°C.

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Par. ST04 Heat pump setpoint It allows to set the Heat pump working temperature within the range ST05..ST06. Par. ST05 Minimum setpoint limit in heat pump. The user can not program a setpoint value lower than ST05, the range is –30 °C..ST04. Par. ST06 Maximum setpoint limit in heat pump The user can not program a setpoint value higher than ST06, the range is ST01..70°C. Par. ST07 Regulation band width in chiller mode. The configured resources are distributed inside the regulation band.

Example

Unit configured with 2 circuits, 3 compressors per circuit and thermoregulation controlled by the evaporator inlet NTC probe. Chiller setpoint: evaporator inlet water = 12°C, evaporator outlet water 7°C: when the evaporator inlet water is 12°C all the compressor outputs are on while when the evaporator inlet water is 7 °C all the compressors are OFF. Thermoregulation parameters: Par. ST01 = 7 °C / Par. ST07 = 5 °C Functioning: the regulation band ST07= 5 °C is divided by the number of resources 6 compressors therefore the step for each resource is 0.8°C, each 0.8°C if the temperature is increasing or decreasing one of the resource is turned on or off. Par. ST08 Regulation band in heat pump mode The configured resources are distributed inside the regulation band.

Example

Unit configured with 2 circuits, 3 compressors per circuit and thermoregulation controlled by the evaporator outlet NTC probe. Chiller setpoint: evaporator inlet water = 40°C, evaporator outlet water 45°C: when the evaporator outlet water is 40°C all the compressor outputs are on while when the evaporator outlet water is 45 °C all the compressors are OFF. Thermoregulation parameters: Par. ST04 = 40 °C / Par. ST08 = 5 °C Functioning: the regulation band ST08=5 °C is divided by the number of resources 6 compressors therefore the step for each resource is 0.8°C, each 0.8°C if the temperature is increasing or decreasing one of the resource is turned on or off. Par. ST08 Regulation band in heat pump mode The configured resources are distributed inside the regulation band. Par. ST09 Defines the thermoregulation probe in chiller. 0= NTC Temperature probe of the evaporator inlet 1= NTC Temperature probe of the evaporator circuit #1 2= NTC Temperature probe of the evaporator circuit #2 3= NTC Temperature probe of the common evaporator 4= Probe temperature of the remote front panel #1. 5= Probe temperature of the remote front panel #2. The ST10 parameter defines the thermoregulation probe of the unit with heat pump control 0= NTC probe temperature of the evaporator inlet 1= NTC probe temperature of the evaporator #1 outlet 2= NTC probe temperature of the evaporator #2 outlet 3= NTC probe temperature of the evaporator common outlet 4= Remote terminal # 1 probe 5= Remote terminal # 1 probe 6= NTC probe temperature of the condenser common inlet 7= NTC probe temperature of the condenser # 1 inlet 8= NTC probe temperature of the condenser # 2 inlet 9= NTC probe temperature of the condenser # 1 outlet 10= NTC probe temperature of the condenser # 2 outlet 11= NTC probe temperature of the condenser common outlet

ATTENTION

To have the same regulation both for chiller and heat pump set the parameters ST09 and ST10 with the same value

22 SELECTION OF THE KIND OF THERMOREGULATION

Par. ST11 determines the type of regulation 0= Proportional 1= Neutral zone 2= Proportional integral

22.1 GRAPH OF THE COMPRESSOR THERMOREGULATION IN CHILLER

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

22.2 GRAPH OF THE COMPRESSOR THERMOREGULATION IN HEAT PUMP

22.3 GRAPH NEUTRAL ZONE COMPRESSOR CONTROL

Not yet available on this version

Compressor regulation in chiller

Compressor regulation in heat pump

22.4 GRAPH PROPORTIONAL INTEGRAL COMPRESSOR REGULATION CONTROL

Not yet available on this version

Compressor regulation in chiller

Compressor regulation in heat pump

23 THERMOREGULATION OF THE ANTI FREEZE, INTEGRATION HEATING OR

BOILER

23.1 THERMOREGULATION OF THE HEATERS IN CHILLER

The Par. Ar06 selects the probe/s control for the anti-freeze alarm and the relay outputs configured as anti-freeze / support / boiler heaters for the circuits 1 and 2 in chiller mode. Par. Ar06 = 0: the function is disabled Par. Ar06 = 1: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 (or both together) is controlled only throughout the NTC probe configured as evaporator water inlet. Par. Ar06 = 2: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #1 is controlled with NTC probe configured as evaporator probe outlet of the circuit #1. The thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #2 is controlled with NTC probe configured as evaporator probe outlet of the circuit #2.

ATTENTION:

It is not possible to control the heaters of the crcuit #1 with the probe of the circuit #2 and viceversa. Par. Ar06 = 3: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 (or both together) is controlled throughout the NTC probe configured as evaporator water outlet circuit #1 or circuit #2 or evaporator water common outlet, or if they are all configured, by the first probe that goes below the setpoint.

23.2 THERMOREGULATION OF THE HEATERS IN HEAT PUMP

The Par. Ar07 selects the probe/s control for the anti-freeze alarm and the relay outputs configured as anti-freeze / support / boiler heaters for the circuits 1 and 2 in heat pump mode. Par. Ar07 = 0: the function is disabled Par. Ar07 = 1: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 (or both together) is controlled only throughout the NTC probe configured as evaporator water inlet. Par. Ar07 = 2: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #1 is controlled with NTC probe configured as evaporator probe outlet of the circuit #1. The thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #2 is controlled with NTC probe configured as evaporator probe outlet of the circuit #2.

ATTENTION:

It is not possible to control the heaters of the crcuit #1 with the probe of the circuit #2 and viceversa.

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Par. Ar07 = 3: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 is controlled throughout the NTC probes configured as evaporator water outlet circuit #1, circuit #2 and evaporator water common outlet , or if they are all configured, by the first probe that goes below the setpoint.

ATTENTION

The two outputs are controlled in parallel if configured with only by one NTC probe control for common evaporator outlet.

FUNCTIONNING OF THE ANTI-FREEZE, INTEGRATION HEATING, BOILER HEATERS DURING THE DEFROST CYCLE

The Ar05 defines the support heaters: Par. Ar05 = 0: The heaters are activated only by the thermoregulation algorithm. Par. Ar05 = 1: The heaters are activated only by the thermoregulation algorithm and are always on during the defrost. They turn on when the 4-way valve change from heat-pump to chiller and turn off only after the dripping time and the compressors restart.

23.3 THERMOREGULATION OF THE SUPPORT HEATERS FOR AIR/AIR UNIT

The NTC control in chiller mode depends on the Ar06 parameter value while from the Ar07 value in heat pump mode. With one relay configured as heaters for circuit #1 With one output configured as heater of the circuit #1 the output is enabled both for chiller and heat pump request. With two outputs configured as heater of the circuit #1 and two the outputs are enabled both for chiller and heat pump request.

FUNCTIONNING OF THE SUPPORT HEATERS DURING THE DEFROST CYCLE

The Ar05 parameter defines the support heaters operating mode during the defrost. Par. Ar05 = 0: the heaters are controlled only through the thermoregulation algorithm. Par. Ar05 = 1: heaters are controlled only through the thermoregulation algorithm and are always on during the defrost cycle. They turn on when the 4-way valve change from heat-pump to chiller and turn off only after the dripping time and the compressors restart

ATTENTION The support heaters are always off when:

• The supply fan is not configured

• The supply fan is off

• The unit is in stand-by or remote off

• The probe is faulty

23.4 CONDENSER ANTI-FREEZE HEATERS REGULATION

The regulation dependes on the configuration of the heater circuit #1 relay and heater circuit #2 relay and the corresponding NTC probes used to this control. The parameter Ar08 is used to select the heaters probe control both for chiller and heat pump. Par. Ar08 = 0: The thermoregulation, the alarm and the heater regulation are disabled. Par. Ar08 = 1: The thermoregulation, the alarm and the regulation of both the heaters together of the circuit 1 and 2 is excecuted only through the condesner water inlet NTC probe. Par. Ar08 = 2: The thermoregulation, the alarm and the heater #1 regulation is executed through the condenser water outlet NTC probe of the circuit #1. The thermoregulation, the alarm and the heater #1 regulation is executed through the condenser water outlet NTC probe of the circuit #2.

ATTENTION

It is not possible to control the heaters of the circuit #1 with the NTC probe of the condenser water outlet of the circuit #2 and viceversa. Par. Ar08 = 3 The thermoregulation, the alarm and the regulation of both the heaters together of the circuit 1 and 2 is excecuted through the probes configured as condenser water outlet of the circuit #1 and 2 and the NTC of the common outlet.

ATTENTION

When the outputs are configured as heaters circuit #1 and 2 they are both controlled by the NTC probe of the common condenser outlet.

23.5 THE THERMOREGULATION OF THE ANTI-FREEZE HEATERS OF THE CONDENSER/RECOVERY

The thermoregulation depends on the configuration of the circuit #1 and 2 heaters and the NTC probe to control the cycle. The Par. Ar08 selects the probe to control the anti-freeze alarm and the heaters thermoregulation. Par. Ar08 = 0: the thermoregulation, the anti-freeze alarm and the heaters control of the circuit #1 is controlled by the NTC of the condenser water common inlet or the circuit #1, while the relay output for circuit #2 is controlled through the NTC configured as condenser water common inlet or circuit 2. Par. Ar08 = 1: the thermoregulation, the anti-freeze alarm and the heaters control of the circuit #1 is controlled by the NTC of the condenser water common outlet or the circuit #1, while the relay output for circuit #2 is controlled through the NTC configured as condenser water common outlet or circuit 2.

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23.6 GRAPH OF THE ANTI-FREEZE- INTEGRATION HEATING - BOILER HEATER RELAYS

23.7 BOILER THERMOREGULATION(ANTIFREEZE), BOILER FUNCTION

To determine the electrical heater control in chiller or heat pump mode because the electrical heaters can be used as anti-freeze or can also be used to integrate or heating the heat pump mode or in particular situation in chiller mode. The function is enabled when:

1. One NTC probe configured as external air for dynamic setpoint / boiler function.

2. Parameter Ar11 <>0.

Integration control Ar11=1 When the air temperature value detected by the external air probe decreases under the Ar12 setpoint, the Ar14 delay starts counting. If during the Ar14 counting the external air increases above the Ar12 + Ar13 (differential) the function is aborted and the Ar14 time is reloaded. When the time Ar14 is expired and the external air temperature is still under the Ar12 setpoint and the water temperature detected by the evaporator probe is lower than Ar15 in chiller mode or Ar17 in heat pump mode, the heaters are turned on. When the temperature rises over Ar15 + Ar16(differential) in chiller mode or Ar17+Ar18 in heat pump the heaters are turned off. With the heaters on if the temperature of the external air rises above the Ar12 (set) + Ar13(differential) immediately they are turned off and the Ar14 delay is reloaded.

Attention

With Boiler function activated and external air temperature value lower than Ar12 if the air temperature decreases under the Ar19 setpoint the compressors are turned off. They are restarted only if the external air temperature rises above Ar19+Ar20 (differential).

Heating control Ar11=2

If during the functioning the external air temperature value goes down under the Ar12 setpoint, the Ar14 delay time starts counting. If during this delay the external temperature rises above the Ar12+Ar13 the process is aborted and the time Ar14 reloaded. If after the Ar14 delay the external air temperature is still under the Ar12 setpoint and the regulation water temperature detected by the evaporator probe is lower than Ar15 (chiller) or Ar17 (Heat Pump), the heaters are turned on while the compressor(s) and the condensing fan(s) are turned off. The heating is made only by the heaters. When the temperature rises above the Ar15+Ar16(regulation band in chiller) or Ar15 + Ar17(regulation band in HP) the heaters are turned off. If during the functioning the external air temperature value rises above the Ar12 +Ar13, the heaters are turned off and the compressor thermoregulation is restarted, the Ar14 delay is reloaded.

HEATERS of the BOILER (ANTI-FREEZE) DURING the DEFROST CYCLE

The Ar05 parameters defines the functioning of the heaters of the boiler during the defrost, If Ar05=0 the heaters are activated by the thermoregulation while if Ar05=1 the heaters are turned on when the 4-way valve changes the status from heat pump to chiller and then they are turned off after the dripping time at the end of the defrost.

ATTENTION

The heaters of the boiler are always off when:

• Active flow alarm

• Active overload alarm of the configured water pump

• Active overload alarm of one of the two water pumps configured and any of the water pumps available for the water flow control.

(In this case the heaters are activated only by the anti-freeze setpoint to protect the evaporator)

24 ANTI - FREEZE ALARM AND HEATERS REGULATION THROUGH DIGITAL INPUT

The anti-freeze alarm and the heaters regulation of the 1st circuit is managed by the digital input configured as anti-freeze alarm circuit #1. The anti-freeze alarm and the heaters regulation of the 2

circuit is managed by the digital input configured as anti-freeze alarm circuit

#2.

ATTENTION

The output of the 1

circuit can not be managed by the digital input of the 2nd circuit and viceversa.

The regulation outputs of th1 1

and 2nd circuit can be regulated together by a single digital input configured as anti-freeze circuit #1 or

circui #2. In this case, with active alarm of the common digital input, the display will show both the antifreeze alarm messages.

25 THERMOREGULATION AND COMPRESSORS ROTATION

The CO14 parameter determines the compressor on and off sequence.

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CO14= 0 Sequential. Depending on the thermoregulation: the 1

compressor is turned on, then the 2nd and the 3rd etc.; then the 3rd off, the 2nd

and then 1st. The first is off only if the 2

and 3rd are off.

CO14= 1

Rotation by hour. Depending on the time running hours the first compressor called by the thermoregulation is the one with less time running hours. This algorithm is aborted if the unit is configured with one capacity compressor.

CO14= 2

Rotation by starts-up. Depending on the number of starts-up per hour the first compressor called or turned off is the one with less starts-up number. This algorithm is aborted if the unit is configured with one capacity compressor.

26 SATURATION - CIRCUIT BALANCING

CIRCUIT SATURATION CO15 = 0

Depending on the thermoregulation all the compressors of the first are turned on before using the second circuit. Eg. 2 circuits, 2 step for each circuit (total of 4 resources)

Activation:

The thermoregulation immediately requires all the 4 resources: the controller turns on the compressor with less running hours, then the second compressor of the same circuit. Then it is turned on the compressor with less running hours of the other circuit and then the second compressor of the other circuit.

De-activation:

It is selected first the the circuit having less resources on, if the running resources are equals for both circuits, the first compressor turned off is the one with the greater number of running hours or less number of starts-up, then, in the same circuit, the other resources are turned off. With the same algorithm the controller will turn off the resources of the other circuit.

CIRCUIT BALANCING CO15 = 1: the circuit balancing is applicable only if there a2 circuits and 2 resources for circuits (total of 4 resources).

The circuit balancing allow to equalise the power supplied by the two circuits, the difference can be one step maximum. ES. 2 circuits, 2 step for each circuit (total of 4 resources)

Activation:

The thermoregulation immediately requires all the 4 resources: the controller turns on the compressor with less running hours, then the compressor with less running hours of the other circuit. Again the first circuit and it is turned on the 2

compressor then the second

compressor of the other circuit.

De-activation:

It is selected first the circuit having more resources on, if the running resources are equals for both circuits, the first compressor turned off is the one with the greater number of running hours or less number of starts-up, then, in the other circuit, the other compressor with less running hours. Again the first circuit and it is turned off the 2

compressor then the second compressor of the other circuit.

COMPRESSOR REGULATION  When it is turned on each compressor runs for the CO01 minimum time. This minimum time is aborted in case of alarm, STAND-

BY / ON OFF by remote, defrost or partialization through NTC transducer.

 When it is turned off each compressor can restart only after the CO02 time delay.  Both for sequential or rotation regulation with compressors or capacity steps: the successive resource is turned on after the CO03

delay in seconds.

 Both for sequential or rotation regulation with compressors or capacity steps: the successive resource is turned off after the CO03

delay in seconds.

 If the power supply fails all the outputs are forced off for the CO005 time delay.

27 COMPRESSORS

27.1 COMPRESSORS START- UP

Parameter CO10 defines the compressor start-up: CO10=0 (direct) CO10=1(part winding) CO10=2 (Star-delta) To configure the compressor start-up it is necessary check the CF parameters of the relay outputs. After selecting the compressor start-up mode, if the output resources are not properly configured, eg: more or less relay outputs than the necessary, the ACF6 alarm is displayed.

27.2 DIRECT START- UP

Configure one relay output for each compressor (K1 relay Fig. 1). One relay output controls the corresponding compressor up to 6 resources.

EXAMPLE

Direct start up configuration for one compressor Set the Parameter CF54 = 29. Direct start-up RL1 compressor # 1

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Fig. 1

27.3 DIRECT START- UP OF A CAPACITY COMPRESSOR

When working with capacity compressors and with full power start-up: the controller turns the solenoid valve on first and then, after 1 second, the compressor motor. Durning the CO13 time delay the valve is forced on: minimum power. When the C013 is expired if the thermoregulation requires more power the valve will be switched off (maximum power).

27.4 PART WINDING

This algorithm allows to reduce the start-up current when using hermetic or semi-hermetic compressors or medium – big screw compressors.

Each compressor needs two relay outputs: One is the PW motor coil #1 of the compressor; One is the PW motor coil #2 of the compressor; The time delay between the two outputs is determined by CO11 expressed in decimal of second in a range 0..5 seconds. The maximum number of relay outputs is 8 this means 4 compressors with Part Winding start-up.

EXAMPLE

Part Winding configuration of the compressor relay outputs Set the Par CF54 = 29. PW motor coil #1 relay of the compressor #1; Set the Par CF55 = 30. PW motor coil #2 relay of the compressor #1;

27.5 COMPRESSOR START- UP WITH PART WINDING

First is turned on the PW motor coil #1 of the compressor #1 (relay K1 of fig2), after the CO11 delay it is turned on the second motor coil of the same compressor (relay K2 of fig2). To turn off the compressor the two relay outputs are both turned off at the same time.

Fig 2

27.6 PART WINDING START- UP OF COMPRESSORS OR CAPACITY COMPRESSORS

If one or more capacity compressors are configured and the thermoregulation requires the full load start-up: the controller turns the solenoid valve on, after 1 second the first motor part of the 1

compressor (relay K1 of Fig. 2) and then the complete control with the contactor K2. Durning the CO13 time delay the step valve is forced on: minimum power. When the C013 is expired if the thermoregulation requires more power the valve will be switched off (maximum power).

27.7 STAR - DELTA START

This algorithm allows to reduce the start-up current when using hermetic or semi-hermetic compressors or medium – big screw compressors. Each compressor needs three relay outputs The maximum number of relay outputs is 6 this means 2 compressors with Star-delta start-up.

EXAMPLE

Star-delta configuration of the compressor relay outputs Set Par CF54 = 29. Star-delta line #1 relay of the compressor #1; Set Par CF55 = 30. Star-delta line #2 relay of the compressor #1;

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Set Par CF56 = 31. Star-delta centre relay of the compressor #1;

27.8 STAR - DELTA START OF A COMPRESSOR

Each compressor needs three relay outputs: One relay output as Line #1 of the compressor #1 (Relay K1 of the Fig.3). One relay output as Line #2 of the compressor #1 (Relay K3 of the Fig.3). One relay output as centre of the star (Relay K2 of the Fig.3) To turn on the compressor

: the centre of the star relay is turned on (Relay K2 of the Fig.3), after 1 second the Line #1 relay is turned on (relay K1 Fig.3). The two relays work together for the time set in CO11, then the relay of centre of the star is switched off (relay K2 Fig.2). Then after the CO12 delay time the relay of the line #2 is turned on (relay K3 Fig.3). To turn off the compressor:

The output relay of the line #1 and line #2 are switched off together.

Fig. 3

27.9 STAR - DELTA START- UP OF A CAPACITY COMPRESSOR

If one or more capacity compressors are configured and the thermoregulation requires the full load control, the controller turns the solenoid valve on, then after 1 second the centre of the star relay is turned on (relay K2 Fig. 3). Then the star-delta procedure will be completed with the other two contactors. Durning the CO13 time delay the step valve is forced on: minimum power. When the C013 is expired if the thermoregulation requires more power the valve will be switched off (maximum power).

28 CAPACITY CONTROL

CO06 capacity control operative mode.

The relay configured as capacity control are managed by the thermoregulation as shown in the graph and into the tables here below.

Par CO06 = 0 ON/OFF step

0= Step control. Depending on the thermoregulation requests and the output polarity a power step can be enabled or disabled. The step is activated only after the previous is turned off.

Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.

Capacity 25% 50% 75% 100% Compr. Compressor ON Compressor ON Compressor ON Compressor ON Out relay Step P 1 ON Step P 1 OFF Step P 1 OFF Step P 1 OFF Out relay Step P 2 OFF Step P 2 ON Step P 2 OFF Step P 2 OFF Out relay Step P 3 OFF Step P 3 OFF Step P 3 ON Step P 3 OFF

Step control process

Compressor Part #1 Part #2 Part #3 Power involved

0 %

25 %

50 %

75 %

100 %

Par CO06 = 1 direct action with sequential step

1= the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of thermoregulation request one of the step is turned on or off while the other steps do not change their status.

Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.

Capacity 25% 50% 75% 100%

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

Compr. Compressor ON Compressor ON Compressor ON Compressor ON Out relay Step P 1 ON Step P 1 ON Step P 1 ON Step P 1 OFF Out relay Step P 2 OFF Step P 2 ON Step P 2 ON Step P 2 OFF Out relay Step P 3 OFF Step P 3 OFF Step P 3 ON Step P 3 OFF

Direct action with sequential step

Compressor P1 P2 P3 Power involved

0 % 25 %

50 % 75 % 100 %

Par CO06 = 2 inverse action with sequential step

Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.

Capacity 25% 50% 75% 100% Compr. Compressor ON Compressor ON Compressor ON Compressor ON Out relay Step P 1 ON Step P 1 ON Step P 1 ON Step P 1 OFF Out relay Step P 2 ON Step P 2 ON Step P 2 OFF Step P 2 OFF Out relay Step P 3 ON Step P 3 OFF Step P 3 OFF Step P 3 OFF

Inverse action with sequential step

Compressor P1 P2 P3 Power involved

0 %

25 % 50 %

75 %

100 %

Par CO06 = 3 Continuous with steps and direct total action 3 = the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of thermoregulation request one of the step is turned on or off while the other steps do not change their status.

Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.

Capacity 25% 50% 75% 100% Compr. compressor ON compressor ON compressor ON compressor ON Out relay Step. N° 3 OFF Step N° 3 OFF Step. N° 3 OFF Step. N° 3 ON Out relay Step N° 2 OFF Step. N° 2 OFF Step. N° 2 ON Step. N° 2 ON Out relay Step. N° 1 OFF Step N° 1 ON Step N° 1 ON Step N° 1 ON

Direct action with sequential step

Compressor P1 P2 P3 Power involved

0 % 25 % 50 % 75 % 100 %

ATTENTION

When working with capacity control in sequential step in direct or reverse modes: if the power requested is 50% and 75% the unit turn on also the step 25% that must be enabled to make run the other two.

28.1 MINIMUM LOAD START- UP

Par. CO07 configuration of the start-up with minimum load and compressor type.

It allows to configurate the 1

partialization valve of the compressor that can be the partialization start-up valve of an alternative compressor or the minimum load for screw compressor. In this way the lower value of partialization (normally is configured as the 1

output with the 25%) can be used as minimum start-up load

and also as thermoregulation step or only as minimum start-up load and never as thermoregulation step.

EXAMPLE

Having one compressor with 3 partializations, at the compressor start-up, with CO07=0, the partialization valve is enabled only for the time CO13 but it won’t be never used during the thermoregulation. After the compressor stops running the time CO13 will be reloaded. Having one compressor with 3 partializations, at the compressor start-up, with CO07=1, the partialization valve is enabled for the time CO13 and it will be considered also as thermoregulation step. After the compressor stops running the time CO13 will be reloaded.

EXAMPLE WITH SCREW COMPRESSOR

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Having one compressor with 3 partializations, with CO07=2 when the compressor is off the partialization valve is always on, so as, in case of start-up, it allows to have the minimum load. After the compressor is started the valve is on only for CO13 time and it won’t be considered as regulation step. After the compressor stops running the time CO13 will be reloaded. Having one compressor with 3 partializations, with CO07=3 when the compressor is off the partialization valve is always on, so as, in case of start-up, it allows to have the minimum load. After the compressor is started the valve is on for CO13 time but it will be considered as regulation step. After the compressor stops running the time CO13 will be reloaded.

28.2 BY- PASS GAS VALVE DURING COMPRESSOR START- UP

It allows to manage, with the partialization valve, also the valve to run the compressor with no load by-passing the circuit. On time of the by-pass gas valve during the compressor start-up. The funcrion is enabled if the CO13 <>0 and one of the relay output is configured as by-pass valve compressor 1, 2 ,3 or 4. Functionning: When thermoregulation requires the relay is turned ON 1 second before turning in the compressor and goes off after the time set in parameter CO13. After the compressor stops running the time CO13 will be reloaded.

28.3 SOLENOID VALVE INTERMITTENT FOR SCREW COMPRESSOR

If configured this output is ON when the compressor is ON (in case of Part Winding or Star-delta it corresponds with the first relay on) for the time set in Par. CO08 and then OFF for the time set in Par. CO09. The cycle CO08 – CO09 of the valve is repeated until the compressor is ON.

ATTENTION:

When the valve output is configured, the intermittent cycle is activated only if the Par. CO08 <> 0.

29 PUMP DOWN

The Pump down process is enabled only if the CO36 parameter is not equal to 0.

29.1 OFF UNIT WITH PUMP DOWN AND WITH LOW PRESSURE SWITCH CONTROL

The process is enabled if the low pressure switch of the circuit is configured with parameter CO36 = 1 or 3 and one of the relay output is configured as pump-down solenoid circuit 1 or 2. (CO36 = 2 or 4 are related to a pressure switch dedicated to this function or the pressure transducer). When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs until the low pressure switch connected to the digital input becomes active for a maximum time set in CO39. In this case there is no Low pressure alarm and no alarm message will be displayed, the digital input active function will disable the last running compressor. A possible low pressure alarm could appear only if the digital input is still active after the AL02 time. If the last compressor stops before the low pressure switch because of the CO39 time-out (maximum compressor on time after turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on. If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the chiller or the heat pump led will blink. When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the compressors start. For any compressor alarm events occur the procedure is stopped and the compressor will be stopped.

PAR. CO36 = 3 OFF UNIT WITH PUMP DOWN in CHILLER MODE (No PUMP – DOWN at START-UP) In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.

29.2 PUMP DOWN WITH DEDICATED PRESSURE SWITCH

PAR.CO36 = 1 OFF UNIT WITH PUMP DOWN ( No PUMP – DOWN at START-UP)

The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one digital input as pump down pressure switch of the circuit 1 and 2. When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs until the pump down pressure switch connected to the digital input becomes active for a maximum time set in CO39. If the last compressor stops before the pump down pressure switch because of the CO39 time-out (maximum compressor on time after turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on. If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the chiller or the heat pump led will blink. When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the compressors start. For any compressor alarm events occur the procedure is stopped and the compressor will be stopped.

PAR. CO36 = 2 ON/OFF WITH PUMP DOWN The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one digital input as pump down pressure switch of the circuit 1 and 2. (CO36 = 2 or 4 are related to a pressure switch dedicated to this function or the pressure transducer). When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs until the pump down pressure switch connected to the digital input becomes active for a maximum time set in CO39. If the last compressor stops before the pump down pressure switch because of the CO39 time-out (maximum compressor on time after turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on.

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If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the chiller or the heat pump led will blink. When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the compressors start. If the compressors do not restart within the CO39 time the pump-down alarm will signalled and the compressor are stopped. In this case if AL23 =0 the compressor can restart only if the pressure switch becomes active, or if AL23=1 and the number of alarms per hour becomes =AL22 only after the manual reset

PAR. CO36 = 3 OFF UNIT WITH PUMP DOWN in CHILLER MODE (No PUMP – DOWN at START-UP)

In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.

PAR. CO36 = 4 ON and OFF UNIT WITH PUMP DOWN in CHILLER MODE In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.

29.3 PUMP DOWN FUNCTION WITH DEDICATED PRESSURE PROBE

PAR.CO36 = 1 STOP UNIT with PUMP DOWN ( No PUMP – DOWN at START-UP)

The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one analogue input as low pressure probe of the circuit 1 and 2. When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs until the pump down pressure connected to the analogue input reaches the set value in CO37. If the last compressor stops before the pump down set value because of the CO39 time-out (maximum compressor on time after turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on. If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the chiller or the heat pump led will blink. When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the compressors start. For any compressor alarm events occur the procedure is stopped and the compressor will be stopped.

PAR. CO35 = 2 UNIT START/STOP with PUMP DOWN The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one analogue input as low pressure probe of the circuit 1 and 2. When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs until the pump down pressure probe connected to the analogue input reaches the setpoint in CO37. If the last compressor stops before the pump down pressure switch because of the CO39 time-out (maximum compressor on time after turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on. If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the chiller or the heat pump led will blink. When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the pressure probe is higher then CO37, the compressors start. If the compressors do not restart within the CO39 time the pump-down alarm will signalled and the compressor are stopped. In this case if AL23 =0 the compressor can restart only if the pressure switch becomes active, or if AL23=1 and the number of alarms per hour becomes =AL22 only after the manual reset.

PAR. CO36 = 3 START UNIT WITH PUMP DOWN in CHILLER MODE (No PUMP – DOWN at START-UP)

In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.

PAR. CO36 = 4 UNIT START/STOP WITH PUMP DOWN in HEAT PUMP In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.

29.4 PUMP DOWN ALARM DURING COMPRESSORS START- UP

ACTIVATION

If within the CO39 delay time (Maximum pump down restart time) the compressor/s do not restart because of the low pressure, the instrument will signal B1PL (pump down alarm at the start-up of the circuit 1) or the label B2PL (pump down alarm at the start-up of the circuit 2). With active alarm the restart procedure is disabled. The alarms can be:

• with Automatic Reset that is not logged, the buzzer and alarm relay are not activated.

• with Manual Reset that is logged, the buzzer and alarm relay are activated.

The Parameter AL22 determines the number of pump down alarm events to turn from automatic to manual reset The Reset is always manual if AL22 = 0 The Reset is always automatic if AL22 = 16 The reset becomes manual after AL22 = 1 ..15 events and the configuration of Par. AL23. Par. AL23 defines if the reset of the AL22 alarm events can be forced from manual to automatic. In this case the alarm events, after reaching AL22, is automatically reset but it is logged while the buzzer and the alarm relay are on. In this way, in case of particularly critical condition, the unit restarts working without the help of the maintenance personnel.

RESET

• The Automatic Reset is activated when the next compressor thermoregulation is requested, in this case the pressure condition of

the pump down must be satisfied.

• The Manual Reset needs to enter the function Menu under the AlrM label. After the reset the next thermoregulation restarts if the

pump down pressure is in normal condition.

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ATTENTION If the pump down function is enabled, during the unit start-up from digital input as pump down pressure switch and also from analogue input as low pressure transducer, the compressor will restart only if both the inputs are satisfied.

29.5 PUMP DOWN ALARM DURING COMPRESSORS SWITCHING OFF

ACTIVATION

If within the time delay CO39 (maximum pump down duration in off) the low pressure switch or the pump down pressure switch is not active or the pump down setpoint is not reached, the last compressor is switched off. In this case after this timeout the instrument signals the B1PH or 2 alarms, in both cases when active the compressor is stopped.

The alarm can be:

• with Automatic Reset that is not logged, the buzzer and alarm relay are not activated.

• with Manual Reset that is logged, the buzzer and alarm relay are activated.

The Parameter AL21 determines the number of pump down alarm events to turn from automatic to manual reset The Reset is always manual if AL21 = 0. The Reset is always automatic if AL21 = 16. The reset becomes manual after AL21 = 1 ..15.

RESET

• The Automatic Reset is activated when the next compressor thermoregulation is requested, in this case the pressure condition of

the pump down must be satisfied.

• The Manual Reset needs to enter the function Menu under the AlrM label. After the reset the next thermoregulation restarts if the

pump down pressure is in normal condition.

29.6 PUMP DOWN INFORMATION

ATTENTION

SELECTION OF THE COMPRESSOR (for pump down in switching off)

Eg: Unit with 2 circuits and 3 compressors each. Having an active digital input as remote off: if the compressor running hours are the same for all the compressors the unit will use the 1

compressor of the 1

and the 2nd circuit: therefore the number 1 and 4. If the running hours are not equal for all compressors the unit will use the compressor having the less running time, this for any circuit configuration. During the pump down process the led of the running mode (chiller / heat pump) is blinking, while if one of the circuits are disabled from the keyboard the running mode led is not blinking.

30 UNLOADING

30.1 HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET

The function is always enabled in chiller mode if there are at least 2 steps of power (two compressor or 1 compressor with partialization) per circuit. It is used to run the unit with high temperature of the evaporator water inlet (such as during the hot summer) to avoid a possible high pressure alarm event. The function si managed through an analogue input configured as NTC evaporator water inlet.

30.2 UNLOADING DESCRIPTION

UNLOADING ACTIVATION

When the thermoregulation request begins to start the compressors in chiller mode, if the evaporator water inlet is equal or bigger than the CO40 setpoint for the CO42 time. When the unloading is active the display shows the AEUn blinking message alternated with the selected display measurement, the unit will start with the loads selected with the CO49 parameter.

EXAMPLE

Unit with 2 circuits with 3 compressors each circuit. If Par. CO49 = 2, 2 power steps per circuit, in case of unloading there will be 4 compressor running.

UNLOAD DEACTIVATION

If the temperature decreases under the value determined by (CO40-CO41) setpoint – differential, the unloading is disengaged, the compressors are all available for the thermoregulation.

30.3 UNLOADING INFORMATION

If the temperature does not decrease enough to reach the CO40-CO41 value, under the CO40 setpoint the CO43, unloading timeout, will start counting and when expired the unit will force the unloading off.

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30.4 UNLOADING WITH PRESSURE, CONDENSING TEMPERATURE OR EVAPORATING PRESSURE

CONTROL

The function is always enabled for both the running mode in order to reduce the load and helps the unit to start: in chiller for high temperature of the external air to avoid high pressure alarms, in heat pump for low temperature of external air to avoid the low pressure alarms. The compressor unloading in chiller mode is managed by the analogue input configured as condenser probe circuit 1 or 2 and determined by CF07 (0=temperature, 1 = pressure) The compressor unloading in heat pump mode is managed by the analogue input configured as evaporator probe circuit 1 or 2. If not configured the heat pump unloading is managed from the condenser transducer.

30.5 REGULATION

UNLOADING IN CHILLER MODE

When the chiller thermoregulation request begins to start the compressors, if the condenser pressure/temperature is equal or bigger than CO44 setpoint the unloading process, of that circuit probe, is engaged. The bottom display shows, alternated with the measurement, the b1Cu or b2Cu labels. The number of active compressors/step is determined by the CO49 parameter.

EXAMPLE

Unit with 2 circuits with 3 compressors each. If Par. CO49 = 2, 2 power steps per circuit, in case of unloading there will be 4 compressor running. With capacity compressors and with unloading active, to avoid having a not well balanced circuit after reducing the power (step valve on) the resource (the valve) is activated for the time set in CO50 even if the unloading function is not more activated and the thermoregulation requires 100% of power. If CO50=0 the function is disabled and if necessary the valve is turned immediately off to have the 100% of the power.

UNLOAD DE-ACTIVATION in CHILLER MODE

If the temperature decreases under the value determined by (CO44-CO45) setpoint – differential, the unloading is disengaged, the compressors are all available for the thermoregulation.

30.6 OTHER INFORMATION ABOUT THE UNLOADING IN CHILLER

To avoid having long period of unloading function activated when the temperature or the pressure value is continuously within the SET and SET+ differential, if the temperature or the pressure is higher than CO40, the CO48 time delay forces the unloading off for timeout even if the temperature / pressure is not lower than CO44-CO45.

UNLOADING IN HEAT PUMP MODE

The compressor unloading in heat pump mode is managed by the analogue input configured as evaporator probe circuit 1 or 2. When the heat pump thermoregulation request begins to start the compressors, if the evaporator pressure/temperature is equal or bigger than CO46 setpoint the unloading process, of that circuit probe, is engaged. The bottom display shows, alternated with the measurement, the b1Cu (crcuit2)or b2Cu (crcuit2)labels. The number of active compressors/step is determined by the CO49 parameter.

EXAMPLE

Unit with 2 circuits with 3 compressors each. If Par. CO49 = 1, 1 power steps per circuit, in case of unloading there will be 2 compressor running, 1 per circuit. With capacity compressors and with unloading active, to avoid having a not well balanced circuit after reducing the power (step valve on) the resource (the valve) is activated for the time set in CO50 even if the unloading function is not more activated and the thermoregulation requires 100% of power. If CO50=0 the function is disabled and if necessary the valve is immediately off to have the 100% of the power.

UNLOAD DE-ACTIVATION in HEAT PUMP MODE

If the evaporator temperature increases the value determined by (CO46+CO47) setpoint +differential, the unloading is disengaged, the compressors are all available for the thermoregulation.

30.7 OTHER INFORMATION ABOUT THE UNLOADING IN HEAT PUMP

To avoid having long period of unloading function activated when the temperature or the pressure value is continuously within the SET and SET+ differential, if the temperature or the pressure is higher than CO46, the CO48 time delay forces the unloading function off for timeout event, even if the temperature / pressure is not lower than CO46+CO47.

31 SOLENOID VALVE FOR LIQUID INJECTION

There are two outputs relay that can be configure as solenoid valve compressor 1 and 2. The function is enabled when:

• For compressor 1: one output relay is configured as solenoid valve compressor 1 and one analogue input is configured as

discharge temperature of compressor 1.

• For compressor 2: one output relay is configured as solenoid valve compressor 2 and one analogue input is configured as

discharge temperature of compressor 2.

31.1 FUNCTIONNING

When the compressor is off the solenoid valve output is always OFF. When the compressor is on: if the PTC temperature of the compressor discharge reaches CO51 setpoint the valve turns ON, while if the temperature decreases under C51-CO52 (set- differential) the valve turns off.

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ATTENTION

The display resolution is 0.1°C until the read-out is 99.9, over 100°C it is 1°C.

32 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN

32.1 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN (AIR/AIR)

With only one evaporator water pump configured, the parameter CO19 / CO20 values do not affect the water pump functioning itself. The water pump regulation involves the following modes:

Operative modes of the parameter CO16 of evaporator pump / Supply fan CO16=0: Not enabled: water pump/supply fan not managed. Attention:

The air / air unit configured with CO16= 0 does not manage the output for integration heaters. CO16 = 1: Continuous control. The water pump/ supply fan are running only if the unit is running (chiller, heat pump). After giving the start in chiller or heat pump mode the compressor regulation starts only after the time delay CO17. The water pump/ supply fan are turned off only when the unit is turned off (stand-by) and, if CO18<>0, the water pump/ supply fan turns off only after the this delay. When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump is turned on. CO16 = 2: on compressor demand. When the compressor turns on also the water pump/ supply fan are turned on. In both chiller and heat pump modes the water pump/ supply fan starts CO17 before the compressor. When the last compressor is turned off the water pump/ supply fan is turned of after the CO18 delay. When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump is turned on.

The pump is always off when:

Remote OFF from digital input. Digital input active of the water pump overload. Digital input active of the evaporator water pump flow with MANUAL alarm.

During the defrost and when the compressor is off in dripping time the pump/supply fan is on.

32.2 HOT START ( SUPPLY FAN) ONLY FOR AIR / AIR UNIT IN HEAT PUMP MODE

The hot start function is available only for air/air unit configured with heat pump and it is active only during the heat pump mode. It allows to start the supply fan only if the evaporating/condensing probe temperature is hot enough to avoid to introduce cold air flows. FA24 Hot start Setpoint. It is the temperature setpoint to stop the supply fan when the NTC probe of the evaporator #1 output or the evaporator #2 output or the evaporator common output value is lower.

FA25 Hot start differential Temperature differential of the hot start function.

33 EVAPORATOR PUMP GROUP

If two relay outputs are configured as evaporator water pump and support pump of the evaporator automatically the pump group control is enabled. First start-up of the unit: the running hours of the two pumps are both 0, if CO16=1 or 2 (continuous or on compressor demand pump mode) by default the pump #1 is turned on. The successive restart of the unit is made with the pump #2. During the normal functioning condition when the unit changes from a stand-by /remote off/ power off status to chiller or heat pump mode the pump that is running is switched off and immediately the one with less running hours is turned on. When the unit goes in stand-by or remote off the pump stays on for the time set in CO18. When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump is turned on.

33.1 EVAPORATOR WATER PUMP ROTATION

Par. CO19 <> 0 to enable the function. Durning the normal functionning condition, both for chiller and heat pump, if one pump reaches the running hours of the CO19 parameter, the pump is turned off while the other pump is re-activated. If the CO20 <> 0, before changing from one to the other the two pumps work together for the time set in this parameter. If CO24=0 the rotation is immediate and CO20 is not counted.

ATTENTION The CO17/CO18 values, on and off delay between compressors and pumps, are calculated also for the pump group.

33.2 EVAPORATOR WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL

With two digital inputs configured as overload alarm of water pump and support pump the rotation is enabled when the digital input of the running pump becomes active. That pump is turned off while the other is forced on. If the digital inputs are configured as evaporator water pump alarm and condenser water pump alarm the active digital input alarm stops the corresponding pump.

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

Note: During the defrost and when the compressor is off in dripping time the pump is on.

33.3 HOT START

FA25 Hot start Setpoint

Low temperature value of PB2 to stop the supply fan. This function is available only with air / air unit configured as heat pump and allows to run the supply fan only when the air temperature is enough hot.

FA26 Hot start differential

Temperature differential of the hot start function.

34 WATER PUMP OF THE CONDENSER

34.1 CONDENSER WATER PUMP CONTROL

If one relay is configured as condenser water pump the CO24 / CO25 parameter values do not affect the pump functioning.. Water pump regulation:

Operative mode of the condenser water pump parameter CO21 CO21 = 0 Not enabled, pump not controlled. CO21 = 1 Continuous control. The water pump is running only if the unit is running (chiller, heat pump). After giving the the start in

chiller or heat pump mode the compressor regulation starts only after the time delay CO17. The water pump is turned off only when the unit is turned off (stand-by) and, if CO23<>0, the water pump/ supply fan turns off only after the this delay. When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump is turned on. CO21 = 2 on compressor demand. When the compressor turns on also the water pump is turned on. In both chiller and heat pump modes the water pump/ supply fan starts CO17 before the compressor. When the last compressor is turned off the water pump/ supply fan is turned of after the CO23 delay. When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump is turned on.

The pump is always off when:

• Remote OFF from digital input.

• Digital input active of the condenser water pump overload.

• Digital input active of the condenser water pump flow with MANUAL alarm.

During the defrost and when the compressor is off in dripping time the pump fan is on.

35 PUMP GROUP OF THE CONDENSER

If two relay outputs are configured as condenser water pump and support pump of the condenser automatically the pump group control is enabled. First start-up of the unit: the running hours of the two pumps are both 0, if CO21=1 or 2 (continuous or on compressor demand pump mode) by default the pump #1 is turned on. The successive restart of the unit is made with the pump #2. During the normal functioning condition when the unit changes from a stand-by /remote off/ power off status to chiller or heat pump mode the pump that is running is switched off and immediately the one with less running hours is turned on. When the unit goes in stand-by or remote off the pump stays on for the time set in CO23. When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump is turned on.

35.1 CONDENSER WATER PUMP ROTATION

Par. CO24 <> 0 to enable the function. During the normal functioning condition, both for chiller and heat pump, if one pump reaches the running hours of the CO24 parameter, the pump is turned off while the other pump is re-activated. If the CO25 <> 0, before changing from one to the other the two pumps work together for the time set in this parameter. If CO24=0 the rotation is immediate and CO25 is not counted.

ATTENTION The CO17/CO23 values, on and off delay between compressors and pumps, are calculated also for the pump group.

35.2 CONDENSER WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL

With two digital inputs configured as overload alarm of water pump and support pump the rotation is enabled when the digital input of the running pump becomes active. That pump is turned off while the other is forced on. If only one digital input is configured as condenser water pump alarm or only as condenser water pump alarm the active digital input alarm stops the corresponding pump.

During the defrost and when the compressor is off in dripping time the pump is on.

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36 LOAD MAINTENANCE

PARAMETERS CO26..CO31 are the set of the running hour counters of the compressors.

They establish, for each load, the number of running hours limit to display a maintenance message. If one of these parameters is equal to 0 the maintenance signalling is disabled but the running hours counter remains active.

36.1 COMPRESSOR MAINTENANCE RESQUESTS

Label description

ACP1 (maintenance comp. 1) –…ACP6 (maintenance comp. 6)

Activation Compressor running hours > counter setpoint for that compressor Reset Running hour reset (Hour label in Menu function) Restart Manual Icon

blinking

Actions Alarm relay and buzzer activated REGULATIONS Actions Only signalling Loads Not modified

The parameters CO32 / CO33 define the hour set counters for the evaporator water pump / Support evaporator water pump / Supply fan.

They establish the load running hours limit of the pump/s or the supply fan to give a maintenance signalling. If one of these parameters is equal to 0 the maintenance signalling of that load is disabled but the running hours counter remains active.

37 CONDENSER FAN REGULATION

The FA01 and FA02 parameters define the operative mode of the condenser fans. The CF68 and CF69 selects which are the output signals. Par. CF68 Condenser fan control signal of the circuit #1 0= 0 ÷10V 1= 4÷20mA 2= PWM Par.CF69 Condenser fan control signal of the circuit #2 0= 0 ÷ 10V 1= 4÷20mA 2= PWM Par. FA01 Fan regulation 0 = Output not enabled 1 = always on 2 = ON/OFF step regulation 3 = ON/OFF continuous step regulation 4 = proportional fan speed Par. FA02 Fan operative mode 0 = Fan on only if compressor on 1 = Independent from the compressor, off during the stand–by / or from remote OFF Parameter combination FA01 – FA02 Par. FA01 = 1 + Par. FA02 = 0 Fans on when the compressor on (the fans work following the same output algorithm) Par. FA01 = 1 + Par. FA02 = 1 Independent from the compressor status but off in stand–by. Par. FA01 = 2 + Par. FA02 = 0 Fans on, with ON/OFF regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay is configured as fan control). When the compressor turns off also the fans are forced off. Par. FA01 = 2 + Par. FA02 = 1 Fans on, with ON/OFF regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay is configured as fan control). When the compressor turns off the fans are thermoregulated depending on the condensing temperature/pressure. Par. FA01 = 3 + Par. FA02 = 0 Fans on, with ON/OFF continuos regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay is configured as fan control). When the compressor turns off also the fans are forced off. Par. FA01 = 3 + Par. FA02 = 1 Fans on, with ON/OFF continuos regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay is configured as fan control). When the compressor turns off the fans are thermoregulated depending on the condensing temperature/pressure. Par. FA01 = 4 + Par. FA02 = 0 Fans on, with proportional regulation (PWM, 4..20mA, 0.10V) and with temperature/pressure transducer control, only when the compressor is on. When the compressor turns off also the fans are forced off. Par. FA01 = 4 + Par. FA02 = 2 Fans on, with proportional regulation (PWM, 4..20mA, 0.10V) and with temperature/pressure transducer control, only when the compressor is on. When the compressor turns off the fans are thermoregulated depending on the condensing temperature/pressure.

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37.1 OUTPUT STEP RELE’ CONDENSER FAN

Par FA01 = 2 ON/OFF step regulation

N° 1 circuit with 4 step of ventilation

Step regulation

OUT relè step n° 1 step n° 2 step n° 3 step n° 4 Out relè step n° 1 step N° 1 ON step N° 1 OFF step N° 1 OFF step N° 1 OFF Out relè step n° 2 step N° 2 OFF step N° 2 ON step N° 2 OFF step N° 2 OFF Out relè step n° 3 step N° 3 OFF step N° 3 OFF step N° 3 ON step N° 3 OFF Out relè step n° 4 step N° 4 OFF step N° 4 OFF step N° 4 OFF step N° 4 ON

Par FA01 = 3 ON/OFF continuous step regulation

N° 1 circuito con quattro gradini di ventilazione

Continuous step regulation

OUT relè Gradino n° 1 Gradino n° 2 Gradino n° 3 Gradino n° 4 Out relè step n° 1 step N° 1 ON step N° 1 ON step N° 1 ON step N° 1 ON Out relè step n° 2 step N° 2 OFF step N° 2 ON step N° 2 ON step N° 2 ON Out relè step n° 3 step N° 3 OFF step N° 3 OFF step N° 3 ON step N° 3 ON Out relè step n° 4 step N° 4 OFF step N° 4 OFF step N° 4 OFF step N° 4 ON

37.2 PWM OUTPUT FOR FAN CONTROL

If FA01=3 and the fan control boards are connected to the PWM outputs (TF1 and2) take note of the FA03 ,FA04 parameters. The fan start-up is always made at the maximum speed for the time set in FA03, then the speed follows the probe value. The F04 delay, in micro – seconds, allows to adjust the output for each kind of the fan motor. If FA01=3, when the compressor starts-up and the proportional regulation requires to turn off the fan (cut-off), if FA14≠0 the fan is forced at the minimum speed for the time set in FA14 itself. if FA14=0 the function is disabled.

37.3 CONDENSING UNIT: COMMON OR SEPARATE

FA05 defines the condenser unit

Par. FA05 type of condenser 0= Common condenser unit. 1= Separate condenser units. If Pa FA05= 0 the outputs, configured as condensing fan control, will follow the same regulation algorithm. The regulation includes:

• CHILLER mode: the maximum probe value compared between the temperature/pressure probe of the two circuits.

• HEAT PUMP (no evaporator probe configured) the minimum probe value compared between the condenser

temperature/pressure probe of the two circuits.

• HEAT PUMP (evaporator probe configured) the minimum probe value compared between the evaporator temperature/pressure

probe of the two circuits. If par. FA05 = 1 and if the evaporating pressure probe are not configured, the fan output controls are separated and are controlled by the condenser temperature/pressure probes. When the evaporator probes are configured, in heat pump the ventilation is controlled by these transducers.

37.4 GRAPH: PROPORZIONAL REGULATION OF CONDENSER FANS

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1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

37.5 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN CHILLER MODE

37.6 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN HEAT PUMP MODE

38 DEFROST CYCLE

The defrost cycle starts only if all these steps are determined:

 CF02=1 heat pump unit.  DF01 <>0: defrost enabled.  Unit working in heat pump mode and at least one compressor running.  The condenser/evaporator probe is configured (per circuit) (if the evaporator probe/s is/are defined, the defrost cycled is always

controlled by it / them).

38.1 FORCED DEFROST

The function is enabled if the parameter dF19<>0. It allows to make a forced defrost cycle even if the dF09 timeout counting is not expired, when the condensing/evaporating temperature/pressure is lower than dF20 setpoint for the dF19 time counting. If during the dF19 time counting the condensing/evaporating temperature/pressure rises above the value dF20+dF21 (set+differential) the function is disabled and the tF19 time is reloaded.

ATTENTION: the forced defrost is not related to the dF09 /dF06 delay times, therefore the forced defrost cycle, if condition are OK,

is immediately executed.

38.2 COMBINED DEFROST

The function is enabled if one of the digital input is configured as NTC temperature for combine defrost of the 1st or 2nd circuit. This probe detects the external air temperature of the condenser (evaporator in heat pump). and its temperature value determines the start and the stop of the defrost cycle. Description of the functioning:

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The count-down to the defrost cycle starts when the temperature/pressure of the probe, configured as condensing/evaporating circuit 1 or 2 probe, is lower than dF02 parameter. After the dF09 counting the instruments checks the temperature probe value (configured as combined defrost circuit 1 or 2) and if it is lower than dF10 (temperature setpoint to start the defrost of the circuit1) or dF12 (temperature setpoint to start the defrost of the circuit2) the defrost cycle starts otherwise the unit still runs in heat pump mode. When the temperature decreases under the dF10 or dF12 values the defrost immediately start. The defrost ends when the NTC combined defrost probe 1 or 2 increases over dF11 (circuit1) or dF13(circuit2). If the defrost is enabled the display allows to show the external temperature on the top display and the labels dEF1 (circuit1) or

dEF2(circuit2) on the bottom display aof the circuit read-out function.

38.3 MANUAL DEFROST

The manual defrost key function is enabled if the unit is on with at least one compressor running. The defrost start temperature/pressure of the controlled probe must be lower than dF02 setpoint value while if the combined defrost is active the detected temperature must be lower than dF10 or dF12. At this point by pushing SET + UP for more than 5 seconds the manual defrost starts.

ATTENTION: the manual defrost is not related to the dF09 /dF06 delay times, therefore the forced defrost cycle, if condition are OK,

is immediately executed for both circuits.

38.4 DEFROST START CONDITION WITH TWO CIRCUIT UNIT

Parameter involved: dF22 0= Independent 1= Only if both circuit conditions are satisfied 2= At least one circuit condition is satisfied

38.5 END OF THE DEFROST IN A TWO CIRCUITS WITH ONE CONDENSING FAN CONTROL UNIT

Parameter involved: dF23 0= Independent 1= Both circuits have reached the conditions to stop the defrost 2= At least one circuit has reached the end defrost condition

Table of defrost cycle for units with 2 circuits

Parameter dF23=0 dF23=1 dF23=2 dF22=0 Yes not possible (ACF1) not possible (ACF1) dF22=1 Yes Yes Yes dF22=2 not possible (ACF1) Yes not possible (ACF1)

ATTENTION:

The configuration error ACF1 is displayed if the parameter value of dF22 and dF23 is not permitted. For only one condensing unit the dF22 and dF23 values must be not equal to 0.

38.6 AUTOMATIC DEFROST PROCEDURE

Phase 1: time counting of dF09 (Interval defrost of the same circuit), unit is working in heat pump mode and at least one compressor is

running, the defrost led

is blinking , the condensing-evaporating temperature or pressure must be lower than dF02 value. (see

start probe par. dF24)

Functioning of the time counter:

1. The dF09 counter is reloaded se if the power supply fails, after a defrost cycle and after the unit changes from chiller to HP.

2. The dF09 counter is stopped if the last compressor turns off or if the pressure-temperature of the condensing-evaporating probe

becomes higher than dF02 parameter value.

3. The counter is decremented if the condensing or evaporating temperature-pressure probe value becomes lower than the dF02

parameter value.

phase: starts after the dF09 counting and check if the initial condition are satisfied to defrost

If one digital input si configured as “defrost end” of the circuit 1 or 2 and the contact is active, the unit waits until the contact is deactivated.

Probe configured as combined defrost NTC of circuit 1 or 2

• If the condensing or evaporating probe value of the 1

circuit is lower than dF10 and lower than dF12 for the 2nd circuit the process

step on the 3

phase.

• Otherwise th unit waits until the probe values decrease under dF10 and dF12. If any of the probe is configured as combined defrost NTC the process steps on the 3

phase.

When the circuit condition are satisfied to execute the 3

phase the display shows the dF1 (circuit1) and dF2 (circuit2 ) labels.

To enter the FASE 3 of the defrost the following conditions have to besatisfied:

: inversion valve management Par. dF07 (OFF compressor before the defrost)

If dF07=0: the valve is activated without stopping any conmpressor and the defrost cycle is immediately activated. If the thermoregulation or the dF14 parameter require more compressors the dF16 (on compressor delay during defrost cycle) is loaded. If df07 <> 0:

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

1. The compressors and the steps are turned off ( the compressor/s led is blinking, the defrost led

is on)

2. Start the dF07 / 2 (half time) time counting;

3. The valve is activated;

4. Start the dF07 / 2 (half time) time counting.

The 4

phase start condition: if the thermoregulation or the dF14 parameters require to turn ON more than one compressor for circuit,

the delay on time between the compressors depends on the parameter dF16. The partialization/s: if configured always OFF during the defrost cycle, the compressor is always 100%.

• if dF14=1 (all the circuit #1 resources are forced to ON): during the defrost cycle the compressors and steps of the circuit #1 are

ON while, if dF14=0 , compressors and steps are thermoregulated.

• if dF15=1 (all the circuit #2 resources are forced to ON): during the defrost cycle the compressors and steps of the circuit #2 are

ON while, if dF15=0 , compressors and steps are thermoregulated.

PHASE: Defrost ON

Parameter involved: dF17 (condensing fan management)

 If dF17=0: The condensing fan are always off;  If dF17=1: The condensing fans start if the condensing temperature-pressure value is higher than dF18, they will following the

normal chiller thermoregulation algorithm.

ATTENTION

during the defrost cycle, both for chiller and the heat pump modes, the fan are controlled with the condensing probe even

if the evaporator probe is present and configured. The 4

phase lasts at least for the dF04 time counting and can terminate for these conditions:

1. If dF02=0:

 The combined NTC probe value is higher than dF11 of the 1

circuit;

 The combined NTC probe value is higher than dF13 of the 2

circuit;

 When the condensing-temperature probe/s is/are higher than dF03 parameter value.

2. If dF02=2: the dF05 counting, maximum defrost timeout, is expired, step on 5

PHASE;

3. If dF02=3, if the end defrost digital input is deactivated, step on 5

PHASE.

PHASE: Inversion valve management Par. dF08 (OFF compressor after defrost cycle)

If dF08 = 0 the valve is turned without stopping the compressors, the defrost ends and all the regulation restarts, the defrost led

in heat pump is off). If dF08 <> 0:

1. All the compressors and steps are turned off ( the compressor leds are blinking and the defrost led

is on)

2. Start the dF08 / 2 (half time) time counting;

3. Inversion valve de-activated

4. Start the dF07 / 2 (half time) time counting; all the regulation restarts and the defrost led

in heat pump is off).

38.7 OTHER INFORMATION ABOUT THE DEFROST

FOR ALL THE UNIT WITH SAME DEFROST FOR THE TWO CIRCUITS

If the unit is configured with one condenser see parameter FA05: 0= common condenser; 1= separated condensers. For FA05=0, common condenser, the defrost of the two circuits starts at the same time.

ATTENTION

Before starting the 3

phase, the dF06 counting, time delay between two circuits defrost, must be expired.

ATTENTION

If the defrost ends because of the dF05 counting (Maximum defrost time) and the dF02 configuration or with the end defrost contact, the bottom display will show, alternated with the normal measurement value, the label b1dF (circuit #1) or b2dF (circuit #2) labels to indicate the defrost end alarms.

38.8 DEFROST PARAMETER DESCRIPTION

ATTENTION IT IS NOT POSSIBLE TO DO MODIFY THE dF PARAMETERS WHEN THE DEROST CYCLE IS RUNNING. dF01 Defrost mode

0 = Defrost not enabled; 1 = Temperature/pressure defrost. The dF09, time delay to the defrost, starts when the temperature decreases under the dF02 setpoint. The Defrost cycle end is determined by temperature/pressure. 2 = Time duration defrost. The dF09, time delay to the defrost, starts when the temperature decreases under the dF02 setpoint. (see start probe par. dF24). The Defrost cycle end is determined by the maximum duration dF05. 3 = Defrost from digital input. The dF09, time delay to the defrost, starts when the temperature decreases under the dF02 setpoint. (see start probe par. dF24) The Defrost cycle end is determined by the active digital input. dF02 Temperature / pressure to begin the time counting to next defrost. It allows to program a setpoint under which the dF09 starts counting. dF03 Temperature / pressure to end the defrost. It allows to program a temperature/pressure setpoint value to determines the end of the defrost when the probe value is rising. dF04 Minimum duration of the defrost It determines the minimum defrost time duration after starting the defrost itself even if the conditions are not more satisfied. dF05 Maximum duration of the defrost If dF01=2, it determines the maximum duration of the defrost and even if, for the other cases, the end defrost condition are still to be satisfied. dF06 defrost delay time between the 1

and the 2nd circuit.

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After the interval dF09 determined by the defrost request of one of the circuits the other 2nd circuits must wait also the time dF06 before defrosting. dF07 Compressor off time before the defrost (the led of the compressor is blinking) After the dF09 delay and before activating the defrost, the compressors are stopped for the dF07 time. Exactly in the middle of the dF07 time the 4-way valve is activated to equalise the pressure of the unit and when dF07 is completely expired the compressors and the defrost can start. This procedure does not respect the compressor on delay protection therefore the compressor is immediately turned off and then on. If dF07 = 0 the compressor is not stopped and the 4-way valve is immediately turned. dF08 Compressor off time after the defrost (the led of the compressor is blinking) After the defrost cycle the compressors are stopped for the dF08 time. Exactly in the middle of the dF07 time the 4-way valve is activated to equalise the pressure of the unit and to drain the external exchange unit, when dF08 is completely expired the unit restart in heat pump mode. This procedure does not respect the compressor on delay protection therefore the compressor is immediately turned off and then on. If dF08 = 0 the compressor is not stopped and the 4-way valve is immediately turned. DF09 Delay time to next defrost It starts when the condensing/evaporating temperature/pressure probe value is lower than dF02 setpoint. This time is reloaded if the power supply fails, after a defrost cycle or from a digital input request of defrost. The time counting is interrupted if the compressor is turned off or if the temperature/pressure is higher then dF02. dF10 Temperature setpoint to start a combined defrost of the circuit #1. It allows to set a temperature value to determines the beginning of a combined defrost. After the dF09 counting the NTC probe of the combined defrost of the circuit #1 is compared to the dF10 setpoint, if the value is lower the defrost starts otherwise the unit runs in heat pump mode and when the temperature decreases under dF10 the defrost immediately starts. dF11 Temperature setpoint to end a combined defrost of the circuit #1. It allows to set a temperature value to determine the end of a combined defrost. When the NTC probe of the combined defrost of the circuit #1 becomes higher than dF10 setpoint the defrost cycle stops. dF12 Temperature setpoint to start a combined defrost of the circuit #2. It allows to set a temperature value to determine the beginning of a combined defrost. After the dF09 counting the NTC probe of the combined defrost of the circuit #2 is compared to the dF12 setpoint, if the value is lower the defrost starts otherwise the unit runs in heat pump mode and when the temperature decreases under dF12 the defrost immediately starts. dF13 Temperature setpoint to end a combined defrost of the circuit #2. It allows to set a temperature value to determine the end of a combined defrost. When the NTC probe of the combined defrost of the circuit #2 becomes higher than dF13 setpoint the defrost cycle stops. dF14 All the resources on during the defrost of the circuit #1 0= Not enabled 1= Enabled dF15 All the resources on during the defrost of the circuit #2 0= Not enabled 1= Enabled

dF16 Compressor step delay time in defrost. dF17 Condensing fan control during defrost and dripping cycle

0= Not enabled 1 = Enabled in defrost 2= Enabled in defrost and in dripping time If dF17 = 0: During the defrost the fan control is not active. If dF17 = 1: when the condensing temperature/pressure value increases over dF18 the fans are turned on. the fan control is determined by the same algorithm used in chiller mode. If dF17 = 2: during the dripping time (dF08 <>0) the fan are turned on for the time duration set in dF08 . dF18 Pressure / temperature setpoint to force the fans on during the defrost When the temperature/pressure rises over this value the fan are turned on at the maximum speed. dF19 Time delay before starting a forced defrost It determines a delay time before starting the defrost cycle dF20 Temperature / pressure setpoint to force a defrost It determines a temperature/pressure setpoint under which the dF19 starts counting, when dF19 is expired if the temperature/pressure is still lower than dF20 the defrost is immediately executed.

ATTENTION

If during the dF19 counting the temperature rises over df20+dF21(differential) the process is aborted and the dF19 time

reloaded.

dF21 Forced defrost differential dF22 defrost mode for unit with two circuits

Operative mode: 0= Independent 1= The condition are satisfied in both circuits 2= At least one circuit has reached the start condition dF23 It determines the end of the defrost for unit having two circuit and common condensing ventilation Operative mode: 0= Independent 1= The end defrost condition are satisfied In both circuits 2= At least one circuit has reached the end defrost condition dF24 Start / stop defrost probe Start / stop defrost from analog input 0= start and stop with condenser temperatur / pressure probe 1= start with evaporator pressure probe / stop with condenser temperatur / pressure probe 2= start with condenser temperatur / pressure probe / stop with evaporator pressure probe 3= start and stop with evaporator pressure probe

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

39 RECOVERY

The recovery function is Enabled if:

1 Par. rC01 not equal to 0. 2 Chiller running mode. 3 The recovery key is pushed to enable the function and the recovery led is on. 4 The condensing temperature / pressure is lower than set rC06 –rC07 (differential). 5 The input/output resources are configured 6 The remote recovery digital input is activated.

The recovery function is NOT Enabled if:

1 Par. rC01 = 0. 2 Heat pump running mode, remote OFF or stand by. 3 The recovery key is pushed to disable the function and the recovery led is on 4 The condensing temperature / pressure is higher than set rC06. 5 The input/output resources are not properly configured (alarm ACF9). 6 The remote recovery digital input is not activated.

NECESSARY RESOURCE FOR THE RECOVERY OF THE CIRCUIT #1

Output relay configured as valve for recovery circuit #1. Remote recovery digital input for circuit #1. Condenser probe of the circuit #1.

NECESSARY RESOURCE FOR THE RECOVERY OF THE CIRCUIT #2

Output relay configured as valve for recovery circuit #2. Remote recovery digital input for circuit #2 Condenser probe of the circuit #2.

39.1 UNIT WITH TWO SEPARATE HYDRAULIC CIRCUITS

FUNCTIONING

Par. rC01 = 1 unit with two separate circuits:

CIRCUIT # 1

With the recovery function enabled, the unit running in chiller and with the temperature/pressure proper condition, the unit can start the recovery of the first circuit if the corresponding digital input is active. When the digital input is active the relay of the valve for the recovery of the first circuit is activated.

CIRCUIT # 2

With the recovery function enabled, the unit running in chiller and with the temperature/pressure proper condition, the unit can start the recovery of the second circuit if the corresponding digital input is active. When the digital input is active the relay of the valve for the recovery of the second circuit is activated.

After starting the function, if the digital input becomes not active the recovery function runs for the time set in rC04 before stoppping..

Between the end and the next recovery function the instrument waits the time set in the parameter rC05 even if the digital input is activated again.

RECOVERY START AND STOP OF THE TWO CIRCUITS CONFIGURED WITH CAPACITY STEPS

During the start and the stop of the fuction the time delay rC02 and rC03 are not counted and the valve is immediately turned on or off.

RECOVERY START OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP

Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors), if the thermoregulation requires to turn on one or more resources and the recovery is activated from the digital input the unit turns on only one step and then waits the rC02 delay (this delay keep off all the other steps after the recovery is started). After the delay the recovery valve is turned on and, after the rC03 time (this delay keeps off all the other steps after the recovery is started), the other resources if necessary are turned on.

RECOVERY STOP OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP

Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors). After the rC04 time delay (minimum on time of the recovery function when activated) if the digital input of the recovery is not active the units stops the new resources for the time set in rC02. After this delay the recovery valve is turned off and the regulation restarts with its normal running condition.

RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED

When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input start the recovery function: before turning on the recovery valve one of the step (depending on the time running hours), is turned off for the time set in rC02. After rC02 the recovery valve is turned on. Then, after the rC03 time (this delay keeps off all the other steps after the recovery is started) the resource forced off if necessary is turned on again.

RECOVERY STOP OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED

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When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input stop the recovery function: after the rC04 time delay (minimum on time of the recovery function when activated) and before turning off the recovery valve, one of the step is turned off for the time set in rC02. When the delay is expired the unit turns off the recovery valve and and the regulation restarts with its normal running condition.

ATTENTION:

For both the circuits: when the compressor are off because of the thermoregulation and the digital input of the recovery function is active, the recovery valve is disabled.

39.2 UNIT WITH TWO HYDRAULIC CIRCUIT WORKING IN PARALLEL

FUNCTIONING

Par. rC01 = 2 unit with two circuits working in parallel: The recovery function from the digital inputs is divided in two steps:

UNIT WITH ONE CIRCUIT RUNNING

If the recovery function is enabled and if the condenser temperature/pressure condition are whithin the limits that circuit starts the recovery when one of the digital inputs is activated. With active digital input the recovery valve of the circuit is on.

UNIT WITH BOTH THE CIRCUITS RUNNING

If recovery function is enabled, if the condenser temperature/pressure condition are whithin the limits the circuit #1 starts the recovery (recovery valve #1 on) when the digital input #1 is activated and the circuit #2 starts the recovery (recovery valve #2 on) when the digital input #2 is activated.

After starting, the recovery function will run at least for the time set in parameter rC04 (minimum time with recovery on). Between the end of a recovery cycle and the next start the unit waits the time set in Par. rC05 before starting it again.

RECOVERY START–STOP OF THE CIRCUITS 1 AND 2 CONFIGURED WITH ONE STEP EACH

Both for recovery start or stop, the delay time rC02 and rC03 are not counted and the recovery valve is immediately turned on or off.

RECOVERY START OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP

RECOVERY STOP OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP

RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED

RECOVERY STOP OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED

ATTENTION:

For both the circuits: when the compressor are off because of the thermoregulation and the digital input of the recovery function is active, the recovery valve is disabled.

40 CONDENSER TEMPERAURE / PRESSURE CONDITION TO ENABLE/DISABLE

THE RECOVERY CYCLE

The recovery can be disabled depending on the condenser condition to avoid a possible high pressure alarm. The function can be executed by programming the analogue input as condenser transducer 1 or 2 (Par CF07=0 temperature control or CF07= 1 pewssure control).

FUNCTIONING

40.1 RECOVERY DISABLED

With the recovery function is activated: if the temperature/pressure is equal or higher than the set rC06 (limit of the recovery cycle) the recovery cycle, of the circuit detected by that transducer, is disabled. When the recovery is disabled the bottom display shows the following blinking icons: b1rC = for circuit 1, b2rC = for circuit 2.

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

40.2 RECOVERY ENABLED

If the temperaTure/pressure decreases under the set rC06-rC07 (differential) the recovery cycle, of the circuit detected by that transducer , is anabled again.

40.3 NOTE ABOUT RECOVERY ENABLED/DISABLED

To avoid long periodof time with recovery function disabled and the temperature/pressure within the range rC06-rC07, the units starts counting the delay set in rC08. After this delay if the decreasing temperature is still within the rC06-rC07 range, the recovery cycle is forced on again.

41 MESSAGES - ALARM CODES

the alarm codes are defined by letters and numbers:. Alarm typology:

• A = alarm of the unit

• b = alarm of the circuit

• C = alarm of the compressor

41.1 AP1 - AP2 - AP3 - AP4 - AP5 - AP6 - AP7 - AP8 - AP9 - AP10 - AP11 - AP12

PROBE FAILURE

Label on display AP1 = PB1 probe alarm…AP10 = PB10 regulator probe alarm

AP11 keyboard N° 1 probe alarm AP12 keyboard N° 2 probe alarm

Reason Probe configured but the read-out is not in the range

Reset Probe not configured or probe in the right range

Restart Automatic

Icon

blinking

Action Alarm Relay + and buzzer on

41.2 AEFL: EVAPORATOR FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH)

Label o the display

AEFL evaporator flow alarm

Origin

Available only for air/water - water/water units Digital input active for the time set in AL15 after the water pump is on and, after the digital input itself is activated, for the time set in AL17.

Reset

Digital input not active for the time AL18.

Restart Automatic – Manual after AL16 events per hours (Reset procedure in Menu function).

Icon

Blinking

Action Alarm Relay + and buzzer on only during normal running conditions.

41.3 ACFL: CONDENSER FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH)

Label o the display

ACFL condenser flow alarm

Origin Available only for air/water - water/water units

Digital input active for the time set in AL15 after the water pump is on and, after the digital input itself is activated, for the time set in AL17. Alarm not enable if AL14=0 Alarm enabled in chiller only if AL14=1 Alarm enabled in heat pump only if AL14=2 Alarm enabled in chiller and heat pump if AL14=3

Reset Digital input not active for the time AL18.

Restart Automatic – Manual after AL16 events per hours (Reset procedure in Menu function).

Icon

Blinking

Action Alarm Relay + and buzzer on only during normal running conditions.

ATTENTION

The alarm relay and the buzzer are activated only if the alarm appears during normal running conditions. When the temperature setpoint has been reached and CO16/CO21= 2, the icon

blinks without alarm.

NOTE ABOUT THE FLOW ALARM CO16 / CO21=0 Water pump not enabled.

The alarm is managed only if one digital input is configured as flow switch, the restart is always automatic. CO16 / CO21=1 Water pump with continuous control. The alarm is managed only if one digital input is configured as flow switch, the restart is always automatic, in stand–by or remote OFF ( pump off), it becomes manual after AL16 events per hour. In chiller or heat pump only. During the functioning of the unit any flow alarm stop the loads described in the table, the water pump

follow its regulation algorithm and is turned off, after AL16 events per hours it is completely locked.

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CO16 / CO21=2 Compressor on – pump on The alarm is managed only if one digital input is configured as flow switch, the restart is always automatic, in stand–by or remote OFF ( pump off), it becomes manual after AL16 events per hour. During the functioning of the unit any flow alarm stop the loads described in the table, the water pump follow its regulation algorithm and is turned off, after AL16 events per hours it is completely locked.

MANUAL RESTART OF THE FLOW ALARM

After AL16 events/hour it is necessary to enter the function Menu to reset the alarm itself. The alarm message DOES NOT DISAPPEAR if the alarm condition is still on. The water pump, if configured, can start and the alarm is by-passed for AL18 seconds. AL15 Alarm flow delay after on pump. When the water pump starts the AL15 delay stops any flow alarm to reach the normal flow condition. AL16 Maximum number of flow alarm events per hour. It determines maximum number of flow alarm events per hour before change the unit restart from automatic to manual. when the alarm becomes manual the water pump is locked.

ATTENTION

With air/water or water/water units and CF01=1,2 the minimum number of events per hour is 1. AL17 Active flow input duration Within this time the flow alarm must be active and after AL17 is expired the alarm is signalled. The counter starts after AL15 and allows to filter the improvise flow reduction or the possible bubbles of air. AL18 Not active flow input duration Within this time the flow alarm must be not active and, after this time, the previous alarm is automatically reset (if automatic) or, if manual, the unit can be restarted.

41.4 ATSF: OVERLOAD ALARM OF THE SUPPLY FAN

Label o the display

AtSF: Overload alarm of the supply fan

Origin

CF01=0: After on fan when the ID is activated for AL15 time. After on pump when the ID is activated for AL17.

Reset

Digital input not active for AL18 time

Restart Automatic – Manual after AL16 events/hour (Reset procedure in Menu function).

Icon

Blinking

Action Alarm relay + buzzer ON

MANUAL RESET OF THE OVERLOAD ALARM OF THE SUPPLY FAN

After AL16 events/hour it is necessary to restart manually the unit (reset procedure in Function Menu with blinking label rSt if the alarm is not active from Al18otherwise label NO (can not be reset)). Push SET key to reset the alarm, the label disappears, the fan restarts and the alarm is by-passed for AL15 time delay to allow the start-up if within this interval the alarm does not appear again.

41.5 ATE1 - ATE2 EVAPORATOR PUMP OVERLOAD ALARM

Label o the display

AtE1 (overload pump alarm of evaporator 1) AtE2 (overload pump alarm of support evaporator 2)

Origin

Active ID when it is configured as overload pump of evaporator 1 Active ID when it is configured as overload pump of support evaporator 2.

Reset

With active digital input

Restart Manual (reset procedure in function menu).

Icona

Blinking

Action Alarm relay + buzzer ON

41.6 ATC1 - ATC2 CONDENSER/RECOVERY PUMP OVERLOAD ALARM

Label o the display

AtC1 (overload pump alarm of condenser 1) AtC2 (overload pump alarm of support condenser 2)

Origin

Active ID when it is configured as overload pump of condenser 1 Active ID when it is configured as overload pump of condenser 2.

Reset

With active digital input

Restart Manual (reset procedure in function menu).

Icon

Blinking

Action Alarm relay + buzzer ON

41.7 AEE EEPROM ALARM

Label o the display AEE

Origin Wrong eeprom data

Reset

-------

Restart Manual

Icon

Blinking

Action Alarm relay + buzzer ON

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

41.8 AFR: POWER SUPPLY FREQUENCY ALARM

Label on the display AFr (Line frequency alarm)

Origin The power supply frequency is not equal to the Par. CF81 + tolerance

Reset Ferquency control parameter adjusted, disabled CF81 = 2, frequency within the tolerance

Restart Automatic

Icon

Blinking

Action Alarm relay + buzzer ON

41.9 ALOC: GENERIC ALARM WITH STOP REGULATION

Label on the display

ALOC: generic alarm from digital input with stop regulation

Origin

Digital input configured as generic alarm with stop regulation active after the delay in Par. AL43

Reset

Digital input configured as generic alarm with stop regulation not active after the delay in Par. AL44

Restart Automatic – It becomes manual after AL42 events/hour (procedura di reset in menù funzioni).

Logged only if manuale

Icon

Blinking

Action Alarm relay + buzzer ON

REGULATION

Alarm Alarm relay + buzzer ON

Other loads OFF

ATTENTION

If during AL44 the alarm stop and start again the AL44 time delay is reloaded.

41.10 ACF1 - ACF2 - ACF3 - ACF4 - ACF5 - ACF6 - ACF7 - ACF8 - ACF9

CONFIGURATION ALARM OF THE UNIT

Label on the display

ACF1

• Heat pump unit without 4-way valve not configured

• Defrost wrong parameters (dF22/23)

ACF2

• Condensing control without probe configuration.

(one probe per circuit with 2 separate circuits, at least 1 probe for common cond.)

• Fan proportional control algorithm not respected:

FA09 + FA11 + FA12 < FA10 FA12 < FA13 FA07 < FA15 < FA08

• Fan proportional control algorithm not respected and pump enabled:

FA18 + FA21 + FA20 < FA19 FA21 < FA22 FA16 < FA23 < FA17

• Fan ON - OFF regulation algorithm not respected:

FA09 < FA10

• Fan ON - OFF regulation algorithm not respected and pump enabled:

FA18 < FA19

• With pump and defrost enabled there are no evaporating/condensing probes.

• With triac regulation (CF68, CF69 = 2) the power supply configuration is Vcc (CF83 = 0)

ACF3

• Two digital/ analogue inputs configured with the same function or without the necessary

resources (es. compressor # 3 overload but compressor#3 relay not configured)

ACF4

• CF79 = 1 and its digital input not configured or CF79 = 2 and no external temperature probe

configured.

ACF5

Circuito # 2 not configured but at least one of its resources are present (relay: solenoid pumpdown, heaters, inversion valve, fan condensing ON - OFF, recovery, auxilairy)

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ACF6

• The total number of compressor of the 2 circuits ( CF04 + CF05 ) is: √ > 6 √ > 4 with no direct compressor start-up (CO10 ≠ 0) or the number of steps is ≠ 0 (CF06), √ > 2 and the intermittent valve is configurated with ON (CO08) and OFF (CO09 ) ≠ 0

• Pump-down function but at least in one circuit √ The pump-down solenoid relay is not present √ No pump-down pressure switch or evaporating probe when

 the pump-down is enabled with unit in start Or  No low pressure switch configurated.

• The compressor configuration with CF04 and CF05 but not the relay outputs:

√ Main √ Intermittent valve when enabled with the ON / OFF time, CO08 / CO09 ≠ 0 √ When the by-pass time ≠ 0 and there is no partialization or by-pass valve configured √ Motor part_2 / centre of the star with part-winding or star-delta √ The necessary step valve configurated

• One relay is configured

√ Too much compressors √ Intermittent valve when ON / OFF time CO08 / CO09 ≠ 0 √ By-pass gas when the by-pass = 0 √ Compressor Motor coil 2 / center of the star with direct compressor start-up

• Too much step valve

ACF7

Evaporator pump

√ Enabled (CO16 ≠ 0) but the relay is not configured √ Not enabled (CO16 = 0) but the relay is configured

Condenser pump

√ Enabled (CO21 ≠ 0) but the relay is not configured √ Not enabled (CO21 = 0) but the relay is configured

ACF8

• Thermoregulation probe

 The thermoregulation probe (in chiller with ST09, in heat pump when enabled with ST10) is

not properly configurated (it does not exist or it is not a NTC)

ACF9

• Recovery cycle enabled Par. rC01 ≠ 0

 only some of these resources are configured: condensing probe, recovery digital input,

recovery relay, or no outputd is configured.

Origin

Wrong programming

Reset

Correctly programming

Restart

Automatic

Icon

Blinking

Action

Alarm relay + buzzer ON

41.11 ARTF CLOCK FAILURE

Label o the display ArtF (clock failure)

Origin Clock chip failure

Reset Change clock chipset

Restart Manual in function menu

Icon

Blinking

Action Alarm relay + buzzer ON

Regulation

Loads Not changed

Energy saving Disabled if based on RTC

Unit ON/OFF Disabled if based on RTC

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

41.12 ARTC CLOCK ALARM

Label o the display

ArtC (clock alarm)

Origin Wrong setting

Reset Clock adjusted

Restart Manual in function menu

Icon

Blinking

Action Alarm relay + buzzer ON

Regulation

Loads Not changed

Energy saving Disabled if based on RTC

Unit ON/OFF Disabled if based on RTC

41.13 AEUN: UNLOADING ALARM FROM HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET

Label o the display AEUn Unload signalling from evaporator

Origin During normal running condition when the temperature/pressure of evaporator water inlet is higher

than CO40 setpoint for the CO42 time delay.

Reset  If the water temperature is lower than CO39 –CO41 (differential)

 Da funzione unloading inserita dopo il tempo impostato Par. CO43

Restart Automatic

Icon

Blinkin g

Action Alarm relay + buzzer OFF

41.14 ALTI: LOW AIR AMBIENT TEMPERATURE (AIR / AIR UNIT ONLY)

Label o the display

ALti (low temperature value of the evaporator air inlet)

Origin

Chiller mode: CF01=0 and evaporator inlet NTC probe lower than AL26 for AL28 seconds. Heat pump: CF01=0 and evaporator inlet NTC probe lower than lower than AL33 forAL36 seconds In stand-by or remote OFF: the evaporator inlet NTC probe lower than the lowest value compared between AL28 and AL36.

Reset

Chiller: evaporator inlet NTC probe higher than AL26 + AL27(differential). Heat pump: evaporator inlet NTC probe higher than AL33 + AL34 (differential). n stand-by or remote OFF: the evaporator inlet NTC probe higher than AL26+AL27 or AL33+AL34.

Restart

Automatic

Icon

Blinking

Action

Alarm Relay + and buzzer on

41.15 AEP1 - AEP2 EVAPORATOR PUMPS / SUPPLY FAN MAINTENANCE REQUEST

Label description

AEP1 (Main water pump)

AEP2 (Support water pump) Activation Load running hours > counter setpoint for that load

Reset Running hour reset (Hour label in Menu function)

Restart Manual

Icon

blinking

Actions

Alarm relay and buzzer activated

REGULATIONS

Actions Only signalling

Loads Not modified

The parameters CO34 / CO35 define the hour set counters for the condenser water pump / Support water pump. They establish the load running hours limit of the pump/s or the supply fan to give a maintenance signalling. If one of these parameters is equal to 0 the maintenance signalling of that load is disabled but the running hours counter remains active.

41.16 ACP1 - ACP12 CONDENSER PUMPS MAINTENANCE REQUEST

Label description

ACP1 (main water pump)

ACP2 (support water pump) Activation Load running hours > counter setpoint for that load

Reset Running hour reset (Hour label in Menu function)

Restart

Manual

Icon

blinking

Actions

Alarm relay and buzzer activated

REGULATION

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Actions Only signalling

Loads Not modified

41.17 B1HP - B2HP HIGH PRESSURE SWITCH CIRCUIT 1 AND 2

Label on display b1HP (high pressure switch circuit #1)

b2HP (high pressure switch circuit #2)

Reason The unit is running and the digital input of the high pressure switch is active

Reset Digital input not active

Restart Manual (Reset procedure in Menu function)

Icon

blinking

Action Alarm Relay + and buzzer on

Regulation

Condensing fan Maximum speed for 60 seconds

41.18 B1LP - B2LP LOW TEMPERATURE / LOW CONDENSING PRESSURE OF THE CIRCUIT

Label o the display b1lP (low pressure digital input of the circuit 1)

b2lP (low pressure digital input of the circuit 2) Origin

When the condensing probe value is lower than AL03 setpoint if:

• In chiller or heat pump

• Stand-by o remote OFF when AL08 = 1

• In defrost when AL06=1

The alarm is not signalled if:

• In defrost ,for the time AL07, when the 4-way valve is turned on.

• For the time set in AL01 after turning on the compressor.

Reset When the condensing probe temperature is higher than AL03 + AL04 (differential)

Restart Automatic– Manual after AL05 events per hour (Reset procedure in Menu function).

Icon

Blinking

Action

Alarm Relay + and buzzer on

41.19 B1AC - B2AC - B1AC - B2AC ANTIFREEZE ALARM / LOW OUTLET TEMPERATURE (AIR /

AIR UNIT IN CHILLER MODE)

Label o the display b1AC (anti-freeze alarm of the circuit #1 in chiller)

b2AC (anti-freeze alarm of the circuit #2 in chiller)

b1Ac (anti-freeze alarm signalling of the circuit #1 in chiller)

b2Ac (anti-freeze alarm signalling of the circuit #2 in chiller)

Both the labels are displayed when the alarm is coming from the evaporator inlet probe or

evaporator common outlet probe or when there is only one digital input configured.

Origin

Normal conditions, stand-by, remote OFF: when the anti-freeze probe value is lower than AL26 for

AL28 seconds.

With the anti-freeze digital input is active.

Reset

When the anti-freeze probe value is higher than A26+ AL27(differential)

With the anti-freeze digital input is active.

Restart Automatic – Manual after AL29 events per hours (Reset procedure in Menu function).

Icon

Blinking

Action If AL30=0 only the compressors are turned off and than display shows b1Ac b2Ac, the buzzer and

the alarm relay are not activated.

If AL30=0 only the compressors are turned off and than display shows b1Ac b2Ac, the buzzer and

the alarm relay are activated.

If the alarm comes from the digital input also the anti-freeze heaters are turned on.

41.20 B1AH - B2AH ANTI-FREEZE ALARM / LOW OUTLET AIR TEMPERAURE(AIR/AIR UNIT ONLY)

ON HEAT PUMP MODE

Label o the display b1AH (anti-freeze alarm of the circuit #1 in heat pump)

b2AH (anti-freeze alarm of the circuit #2 in heat pump)

b1Ah (anti-freeze alarm signalling of the circuit #1 in heat pump)

b2Ah (anti-freeze alarm signalling of the circuit #2 in heat pump)

Both the labels are displayed when the alarm is coming from the evaporator inlet probe or

evaporator common outlet probe or when there is only one digital input configured.

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

Origin

Normal conditions, stand-by, remote OFF: when the anti-freeze probe value is lower than AL33 for

AL36 seconds.

With the anti-freeze digital input is active.

Reset

When the anti-freeze probe value is higher than AL33 + AL34(differenziale).

With digital input ont active

Restart Automatic – Manual after AL37 events per hour (Reset procedure in Menu function).

Icon

Blinking

Action If AL38=0 only the compressors are turned off and than display shows b1Ah - b2Ah, the buzzer

and the alarm relay are not activated.

If AL38=0 only the compressors are turned off and than display shows b1AH - b2AH, the buzzer

and the alarm relay are activated.

If the alarm comes from the digital input also the anti-freeze heaters are turned on.

Attention

Par. AL35 anti-freeze alarm delay (low outlet air temperature air/air unit) when the unit starts in heat pump mode. In stand-by or remote OFF: there is an anti-freeze alarm and the time delay in AL35<>0, if the unit is manually turned on in heat pump from keyboard or remote input, the alarm is reset so the unit can start at least for the time set in AL35 in order to heat the water or the air. After the AL35 delay if the anti-freeze probe is still lower than AL33 setpoint for AL36 seconds the unit is locked again with an antifreeze alarm.

41.21 B1HP - B2HP HIGH PRESSURE / CONDENSING HIGH TEMPERATURE OF THE CIRCUIT

Label o the display b1hP (high pressure digital input of the circuit #1)

b2hP (high pressure digital input of the circuit #2)

Origin In chiller or heat pump, if the condensing probe is higher than AL09 setpoint.

Reset If the condensing probe value is lower than AL09 –AL10 (differential)

Restart Manual (Reset procedure in Menu function).

Icon

Blinking

Action

Alarm Relay + and buzzer on

41.22 B1LP - B2LP LOW PRESSURE SWITCH CIRCUIT #1 OR 2

Label o the display b1LP (low pressure switch circuit #1)

b2LP (low pressure switch circuit #2)

Origin

• With the digital input is active

• If AL08=1, also in stand-by or remote OFF, when the low pressure switch input is active.

• In defrost if AL06=1 when the compressor low pressure switch input is active.

The alarm is not signalled if :

• In defrost for the time AL07 when the 4-way valve is activated.

• During the AL01 delay after turning on the compressor.

Reset

Digital input not active

Restart

Automatic - Manual after AL02 events per hour (Reset procedure in Menu function)

Icon

Blinking

Action

Alarm Relay + and buzzer on

41.23 B1LP - B2LP LOW EVAPORATING PRESSURE OF THE CIRCUIT (WITH PRESSURE

TRANSDUCERS ONLY)

Label o the display b1lP (low evaporator pressure from analogue input #1)

b2lP (low evaporator pressure from analogue input #2)

Origin

The alarm is activated when at least one of the probes , configured as evaporating control, is

lower than AL03 setpoint if:

• In chiller or heat pump mode;

• Stand-by or remote OFF when AL08 = 1

• In defrost when AL06=1

The alarm is not signalled if:

• In defrost ,for the time AL07, when the 4-way valve is turned on.

• For the time set in AL01 after turning on the compressor.

Reset When the condensing probe temperature is higher than AL03 + AL04 (differential)

Restart Automatic– Manual after AL05 events per hour (Reset procedure in Menu function).

Icon

Blinking

Action

Alarm Relay + and buzzer on

ATTENTION

When the pressure transducers are configured the low pressure alarms are related only to transducer values.

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41.24 B1TF- B2TF CONDENSER FAN OVERLOAD ALARM

Label o the display b1tF (Condenser fan overload alarm of the circuit #1)

b2tF (Condenser fan overload alarm of the circuit #2)

Origin

When the digital input is active

Reset

When the digital input is not active

Restart

Manual (reset from the function menu)

Icon

Blinking

Action

Alarm relay + buzzer ON

41.25 C1HP - C2HP - C3HP - C4HP - C5HP - C6HP COMPRESSOR HIGH PRESSURE ALARMS

Label o the display

C1HP ( compressor high pressure alarm 1) – … C6HP (compressor high pressure alarm 6)

Origin

The unit is running and the digital input of the compressor high pressure switch is active

Reset

Digital input not active

Restart

Manual (Reset procedure in Menu function)

Icon

blinking

Action

Alarm Relay + and buzzer on

41.26 C1OP - C2OP - C3OP - C4OP - C5OP - C6OP - PRESSURE SWITCH ALARM /

COMPRESSOR OIL

Label o the display

C1oP (Compressor pressure switch #1) … C6oP (Compressor pressure switch #6)

Origin

The alarm is not signalled: during the AL01 delay after turning on the compressor, during the AL12

delay that starts after the AL11 delay when the unit is properly running

Reset Digital input not active

Restart

Automatic - Manual after AL013 events per hour (Reset procedure in Menu function)

Icon

Blinking

Action

Alarm Relay + and buzzer on

OIL ALARM FROM PRESSURESTAT SWITCH OR OIL LEVEL SWITCH (screw)

Occasionally it is possible to find both the safety systems, the delay, the active input duration and the number of events per hour allow to set-up both the protections.

Par. AL11 Oil alarm delay after on compressor. It allows to set a time delay before signalling the oil or the oil level switch alarms after the on compressor. Par. AL12 Duration of the pressure switch / oil level switch in normal operating conditions. Duration of the oil level switch activation during normal running condition. It allows to set the time delay before signalling the alarm. AL11 defines the delay counting, it helps to override the low pressure or the low oil level determined, for example, by a new partialization step of the compressor itself. Par. AL13 Maximum number of alarm events per hour. It determs the maximum number of alarm events before switching the restart from automatic to manual.

41.27 C1DT - C2DT - C3DT - C4DT - C5DT - C6DT HIGH COMPRESSOR DISCHARGE

TEMPERATURE ALARM

Label o the display

C1dt (High discharge temperature of the compressor #1) -…C6dt (High discharge temperature of

the compressor #6)

Origin

The compressor discharge temperature is higher than AL39 setpoint.

ATTENTION

The display resolution is 0.1°C until the read-out is 99.9, over 100°C it is 1°C.

Reset If the probe value of the high discharge temperature is lower than “AL39 - AL40 (differential)”

Restart Automatic. Manual when there are AL41 per hour (Reset procedure in Menu function).

Icon

Blinking

Action Alarm Relay + and buzzer on

41.28 C1TR - C2TR - C3TR - C4TR - C5TR - C6TR COMPRESSOR OVERLOAD ALARM

Label o the display C1tr (Compressor #1 overload alarm) -…C6tr (Compressor #1 overload alarm 6)

Origin With active digital input

The alarm is not detected within the AL19 time delay after the on compressor

Reset When the digital input is not active

Restart Manual after AL20 events/hour, to reset the alarm enter the function menu under cOtr.

Icon

Blinking

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

Action Alarm relay + buzzer ON

Compressor involved If AL47=0 or 1: OFF

Compressor not involved If AL47=0: it follows its regulation. If AL47=1: OFF

ATTENTION

The parameter AL47 determines the functioning of the overload alarm of the compressors. If AL47 = 0 single compressor locked when its digital input protection is active, on the display the corresponding alarm message. If AL47 = 1 all the circuit of the compressor is locked when one digital input protection is active, on the display the corresponding alarm message.

41.29 B1DF – B2DF DEFROST ALARM

Label o the display b1dF (Defrost alarm of the circuit #1)

b2dF (Defrost alarm of the circuit #2)

Origin Only in defrost if DF01 = 1,3 (defrost en temperature/pressure or external contact): when the

defrost ends after the DF05 timeout.

Reset  Stand - by or remote ON-OFF.

 Next defrost ends for temperature/pressure.

Restart Automatic if next defrost ends for temperature/pressure, otherwise manual.

Icon

Blinking

Action Alarm relay + buzzer OFF

41.30 B1CU – B2CU UNLOADING DISABLED FROM HIGH CONDENSING TEMPERATURE /

PRESSURE IN CHILLER

Label o the display b1CU (unloading high temperature from condenser of the circuit # 1)

b2CU (unloading high temperature from condenser of the circuit # 2)

Origin When the temperature/pressure of condenser probe control is higher then CO44 Reset  When the temperature/pressure of condenser probe is lower than CO44 –CO45 (differential)

 After unloading is activated and after Par. CO47

Restart Automatic

Icon

Blinkin

Action Alarm relay + buzzer OFF

41.31 B1CU – B2CU: UNLOADING FROM LOW CONDENSING TEMPERATURE / PRESSURE IN HEAT

PUMP

Label o the display b1CU (unloading message from condenser #1)

b2CU (unloading message from condenser #2)

Origin During normal running condition when the temperature/pressure of evaporator/condenser probe is

lower than < CO46 setpoint Reset  when the temperature/pressure of evaporator/condenser probe value is higher than CO46 +

CO47

 After unloading is activated and after Par. CO48

Restart Automatic

Icon

Blinking

Action Alarm relay + buzzer OFF

41.32 B1RC – B2RC RECOVERY DISABLED FROM HIGH CONDENSING TEMPERATURE/PRESSURE IN

CHILLER

Label on the display b1rC (recovery disabled message from circuit #1)

b2rC (recovery disabled message from circuit #2)

Origin In normal running condition when the temperature/pressure probe value is higher than the set rC06 Reset  When the temperature/pressure probe value is lower than the rC06 –rC07(differential)

 Unloading start after the time delay Par. rC08

Restart Automatic

Icon

Blinking

Action Alarm relay + buzzer OFF

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41.33 B1PH - B2PH: PUMP DOWN STOP ALARM FROM PRESSURE SWITCH / LOW PRESSURE

SWITCH

Label on the display b1PH (Pump down stop alarm of the circuit 1)

b2PH (Pump down stop alarm of the circuit 2)

Origin Pressure switch: if CO36 = 1,2,3,4 and ID not active, the pump down stops because of the timeout

CO39.

Transducer: if CO36 = 1,2,3,4 and the set CO37 is not reached: the pump stops because of the

timeout CO39.

Reset From thermoregulation start-up and ID not active

From thermoregulation start-up with evaporating pressure higher than CO37 + CO38 (differential)

Restart Automatic – Manual and logged after AL21 events per hour (reset procedure in function menu).

Icon

Blinking

Action Alarm relay + buzzer ON when it becomes manual

41.34 B1PL - B2PL ALARM DURING THE PUMP DOWN START-UP FROM PUMP DOWN PRESSURE

SWITCH / LOW PRESSURE TRANSDUCER

Label o the display b1PL (pump down alarm in start-up of circuit #1)

b2PL (pump down alarm in start-up of circuit #2)

Origin Pump down pressure switch : CO36 = 1,2,3,4 and compressors start-up and digital input not active

for the time set in CO39

Pump down transducer: CO36 = 1,2,3,4, compressors start-up and the set CO37 is not reached in

the interval time CO39.

Reset From thermoregulation start-up and ID not active

From thermoregulation start-up with evaporating pressure higher than CO37 + CO38 (differential)

Restart Automatic - Manual and logged after AL21 events per hour if AL23=1 (reset procedure in function

menu).

If AL23 = 0 it is automatic and not logged.

Icon

Blinking

Action Alarm relay + buzzer ON when it becomes manual

41.35 C1MN - C2MN - C3MN - C4MN - C5MN - C6MN COMPRESSOR MAINTENANCE

Label o the display

C1Mn (Compressor #1 maintenance) –…C6Mn (Compressor #6 maintenance

)

Origin Compressor running hours > Hour counter setpoint

Reset Hour reset in function menu

Restart Manual

Icon

Blinking

Action Alarm relay + buzzer ON

Regulation

Action Only display warning messages

Loads Not changed

41.36 AEP1 - AEP2 PUMP/ SUPPLY FAN MAINTENANCE

Label o the display

AEP1 (Evaporator #1 pump maintenance)

AEP2 (Evaporator #2 pump maintenance) Origin

Pump/supply fan running hours > Hour counter setpoint

Reset Hour reset in function menu

Restart Manual

Icon

Blinking

Action Alarm relay + buzzer ON

Regulation

Action Only display warning messages

Loads Not changed

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

41.37 ACP1 - ACP1 CONDENSER PUMP MINTENANCE

Label o the display

ACP1 (Condenser #1 pump maintenance)

ACP1 (Condenser #2 pump maintenance) Origin

Pump running hours > Hour counter setpoint

Reset Hour reset in function menu

Restart Manual

Icon

Blinking

Action Alarm relay + buzzer ON

Regulation

Action Only display warning messages

Loads Not changed

41.38 ALARM RELAY AND BUZZER

Alarm relay / buzzer outputs

Origin Alarms still active

Alarms not reset

Reset relay alarm Whitout alarms

In stand- by or remote ON-O FF if AL42 = 1

Buzzer silencing By pushing one of the key of the front panel

The alarm relay is enabled only by configurating the corresponding output resource.

41.39 KEYABOARD ALARM

Alarm

code

keyaboard Alarm description

noL

No data communication between the keyaboard and the regulator.

Atr1

keyaboard n° 1 set up but not connected to regulator

Atr2

keyaboard n° 2 set up but not connected to regulator

42 AUTOMATIC TO MANUAL ALARM PROCEDURE

NUMBER OF EVENTS PER HOUR

Each hour counting is divided in 16 intervals, each made of 3600 / 16 = 225 seconds (3 minuts and 45 seconds).

1°Int 2°Int 3°Int 4°Int 5°Int 6°Int 7°Int 8°Int 9°Int 10°Int 11°Int 12°Int 13°Int 14°Int 15°Int 16°Int

After the unit start-up, each interval is marked as “not active”. During the interval counting, for 255seconds, if at least an alarm event appears, the interval itself is marked “Active”. Starting from the first interval the instrument calculates the 16 intervals and, at the end, it restats overwriting from the first. In this way the last hour is always monitored and counted the active intervals. when the number of active intervals reaches the threshold set with the corresponding parameter the alarm becomes manual. By setting the threshold (parameter)=0 the alarm is manual from its first activation while if the threshold=16 the alarm is always automatic (In this case, to change in manual, the threshold should be 17).

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43 TABLE OF THE OUTPUT STATUS IN ALARM CONDITION

The alarm codes are made of letters and numbers to define the different typologies:.

43.1 ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF

Alarm

Code

Alarm description Compressor Anti freeze

heaters

Boiler

Support

heaters

Evap.

Pump.

Supply fan

Condens

er Pump

Ventilaz.

cond.

Cir1 Cir2

Auxiliary

relay

AP1 Probe PB1 Alarm Yes Yes (1) Yes Yes Ye s (2) AP2 Probe PB2 Alarm Yes Yes (1) Yes Yes Ye s (2) AP3 Probe PB3 Alarm Yes Yes (1) Yes Yes Ye s (2) AP4 Probe PB4 Alarm Yes Yes (1) Yes Yes Ye s (2) AP5 Probe PB5 Alarm Yes Yes (1) Yes Yes Ye s (2) AP6 Probe PB6 Alarm Yes Yes (1) Yes Yes Ye s (2) AP7 Probe PB7 Alarm Yes Yes (1) Yes Yes Ye s (2) AP8 Probe PB8 Alarm Yes Yes (1) Yes Yes Ye s (2) AP9 Probe PB9 Alarm Yes Yes (1) Yes Yes Ye s (2)

AP10 Probe PB10 Alarm Yes Yes (1) Yes Yes Yes (2)

ALti Low air temperature of the evaporator inlet (air / air unit) Alarm AEFL Evaporator flow alarm Yes Yes (boiler) Yes (3) Yes ACFL Condenser flow alarm Yes Yes (3) Yes

AtSF Fan supply overload alarm Yes Yes Yes Yes

AEUn Unloading signalling from evaporator

AtE1 Water pump overload alarm evaporator 1 Yes (4) Yes (boiler) (5) Ye s Yes

AtE2 Water pump overload alarm support evaporator 2 Yes (4) Yes (boiler) (5) Yes Yes AtC1 Water pump overload alarm condenser 1 Yes (4) Yes Yes AtC2 Water pump overload alarm support condenser 2 Yes (4) Yes Yes

AEP1 Water pump maintenance evaporator 1 AEP2 Water pump maintenance support evaporator 2 ACP1 Water pump maintenance condenser 1 ACP2 Water pump maintenance support condenser 2

ArtC Clock alarm

Atr1 Remote terminal n° 1 configured but not connected Atr2 Remote terminal n° 2 configured but not connected

ArtF clock failure

ALOC Generic alarm with unit stopped Yes Yes Yes Yes Yes

AEE Eeprom alarm Yes Yes Yes Yes Yes

ACF1 Configuration alarm Yes Yes Yes Yes Yes ACF2 Configuration alarm Yes Yes Yes Yes Yes ACF3 Configuration alarm Yes Yes Yes Yes Yes ACF4 Configuration alarm Yes Yes Yes Yes Yes ACF5 Configuration alarm Yes Yes Yes Yes Yes ACF6 Configuration alarm Yes Yes Yes Yes Yes ACF7 Configuration alarm Yes Yes Yes Yes Yes

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

ACF8 Configuration alarm Yes

Yes Yes Yes Yes

ACF9 Configuration alarm Yes

Yes Yes Yes Yes

ArtF Faulty clock

ArtC Clock error AEUn Unloading signalling from high temp of. evaporator water ALti Low evaporator inlet temperature in air/air unit AEP1 Evaporator #1 water pump maintenance AEP2 Evaporator #2 water pump maintenance ACP1 Condenser #1 water pump maintenance ACP2 Condenser #2 water pump maintenance

(1) = with probe configured as anti-freeze / boiler control and Ar10 = 0 (2) = with probe configured as auxiliary relay control (3) =

with manual alarm procedure

(4) = Off compressors spenti with only 1 water pump configured or with 2 pumps but both in alarm from the corresponding digital inputs. (5) = Boiler heaters off with only 1 water pump configured or with 2 pumps but both in alarm from the corresponding digital inputs (in this case the boiler heaters are on only with thermoregulation anti-

freeze setpoint as evaporator protection function)

43.2 ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF

Alarm

Code

Alarm description

Compressors

of the circuit

(n)

Compressors of the other circuit

Fan condensing of the

circuit (n)

Fan condensing of

the other circuit

b(n)HP

High pressure switch of the circuit (n) Yes

Yes after 60 seconds

b(n)LP

Low pressure switch of the circuit (n) Yes

Yes

b(n)AC

Anti-freeze in chiller of the circuit (n)

Yes Yes

b(n)AH

Anti-freeze in heat pump of the circuit (n)

Yes Yes

b(n)hP

High condensing pressure of the circuit (n) Ye s

Yes after 60 seconds

b(n)hP

High condensing temperature from NTC of the circuit (n) Yes

Yes after 60 seconds

b(n)LP

Low condensing pressure - (evaporating with low pressure transducer) with transducer of the circuit of the (n)

Yes Yes

b(n)lP Low condensing temperature NTC circuit (n) Yes Yes b(n)tF

Fan overload circuit (n) Yes Yes

b(n)PH

Pump down alarm in stop regulation of the circuit (n) Yes

Yes

b(n)PL

Pump down in regulation start-up of the circuit (n) Yes

Yes

b(n)dF Bad defrost circuit (n) b(n)Cu Unloading from condenser high temp/press of the circuit (n) b(n)Cu

Unloading from evaporator low temp/press of the circuit (n) Yes

Yes

b(n)rC

Recovery function disabled in circuit (n)

b(n)ds

Circuit (n) disabled from keyboard Yes

Yes

b(n)Ac

Anti-freeze circuit (n) message in chiller

b(n)Ah

Anti-freeze circuit (n) message in heat pump

(n) identifies the circuit 1 or 2

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

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43.3 ALARM: “A” TYPE AND CORRESPONDING COMPRESSOR OUTPUT OFF

Alarm Code

Alarm description Compressor

(n)

Compressors not involved

C(n)HP Compressor(n) high pressure switch Yes C(n)oP Compressor(n) oil pressure switch / Oil level switch Yes C(n)tr Compressor(n) overload Yes C(n)dt Compressor high discharge temperature Yes C(n)dS Compressor (n) disabled from keyboard Yes C(n)Mn Compressor(n) maintenane

(n) identifies the compressor 1, 2 , 3 , 4 , 5 , 6

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

44 BLACK-OUT

After the black-out is restored:

1. The instrument resores the same operating mode lost after the supply failure.

2. If active, the defrost is aborted.

3. All the timers and time parameters are reloaded.

4. The manual alarm is not reset.

45 INSTALLING AND MOUNTING

45.1 PANEL CUT- OUT

The instrument must be mounted on vertical panel, with panel cut-out 150x31mm, and screwed 2 screws ∅ 3 x 2mm, in between distance 165mm. The IP65 can be reached with the gasket RG-L (opzionale). The ambient working temperature range should be between 0÷60°C. Avoid locations subject to heavy vibration, corrosive gases or excessive dirt. The same applies to the probes. Ensure ventilation around the instrument.

165 150

Ø3 x2

45.2 PLEXIGLASS PROTECTION BOTTOM OPEN

45.3 PLEXIGLASS PROTECTION TOP OPEN

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45.4 METAL FRONT FRAME

45.5 VERTICAL BOARDS VI620 – VI820 PANEL CUT-OUT

The remote terminals are for panel mounting, panel cut-out 72x56 mm, and screwed with two screws. The IP65 can be reached with the gasket RGW-V (optional).

WALL MOUNTING: use the vertical V-KIT (black, white and grey) as described in the following scheme:

1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005

46 ELECTRICAL CONNECTIONS

The instrument is provided with:

• 3 removable terminal blocks MOLEX with 0.5 mm

wires: 16 / 8 /22 ways for digital / analogue inputs and modulating outputs.

• 4 removable screw terminal block STELVIO for 2.5 mm

wires connection: 3 / 4 / 5 / 6 ways for the relay outputs.

• 5 ways connector for TTL RS485 interface outputs.

• 2 ways connector for remote panels to be connected with the cable CAB/CJ30. The remote panels have two terminals for 2.5 mm

wires.

• The LW30 KIT is the complete kit with MOLEX + 3 mt wires already connected and the STELVIO terminals.

• Check the connecitons and the line voltage before turning on the power supply.

• Keep low voltage cables, such as analogue/digital inputs/outputs and probes, away from power cables and terminals.

• Respect the maximum load current of each relay output, in case of power loads use filtered contactors.

47 ACCESSORIES

47.1 MONOPHASE FAN CONTROL: 230VAC AND CUT PHASE CONTROL

Models XV05PK XV10PK XV22PK

Power 500W 1000W 2200W

Ampere 2A 4A 9.5A

Scheme 1 1 1

(Scheme 1)

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