Eliwell ECH 200BD ""Adaptive User Manual

ECH 200BD "Adaptive" Electronic Controller for mono and bicompressor Chillers with Adaptive Algorithm

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1 SUMMARY

1 Summary................................................................................................................................................................... 2

2 How to use this manual ........................................................................................................................................ 5

3 Introduction ............................................................................................................................................................. 6

3.1 Models available............................................................................................................................................................................... 6

4 Installation ............................................................................................................................................................... 8

4.1 Connection diagrams ...................................................................................................................................................................... 8

4.2 Configuration of analogue inputs ................................................................................................................................................ 9

4.3 Configuration of digital inputs.................................................................................................................................................... 10

4.4 Configuration of outputs.............................................................................................................................................................. 10

4.4.1 Relays................................................................................................................................................................................................................................................... 11

4.4.2 Triac ..................................................................................................................................................................................................................................................... 11

4.4.3 Alarm...................................................................................................................................................................................................................................................12

4.4.4 Fan module pilot output ................................................................................................................................................................................................................12

4.4.5 Optional output ................................................................................................................................................................................................................................ 12

4.4.6 Remote keyboard output ............................................................................................................................................................................................................... 12

4.5 Physical quantities and units of measurement........................................................................................................................ 13

4.5.1 Temperature- or pressure-based operation............................................................................................................................................................................... 13

4.5.2 Units of measurement.....................................................................................................................................................................................................................13

4.6 Serial outputs ..................................................................................................................................................................................14

4.6.1 Copy card device...............................................................................................................................................................................................................................14

5 User interface......................................................................................................................................................... 15

5.1 Keys.................................................................................................................................................................................................... 15

5.2 Displays.............................................................................................................................................................................................15

5.2.1 Display.................................................................................................................................................................................................................................................15

5.2.2 SET display for air-air machines (for models Ech 2xxB only) ................................................................................................................................................ 15

5.2.3 Led ........................................................................................................................................................................................................................................................ 16

5.3 Remote keyboard............................................................................................................................................................................ 16

5.4 Parameter programming – Menu levels ...................................................................................................................................18

5.4.1 Visibility of parameters and sub-menus .....................................................................................................................................................................................20

6 System configuration........................................................................................................................................... 21

6.1 Compressors..................................................................................................................................................................................... 21

6.1.1 Compressor configuration..............................................................................................................................................................................................................21

6.1.2 Compressor on/off sequence .........................................................................................................................................................................................................21

6.1.3 Compressor timing ........................................................................................................................................................................................................................... 21

6.2 Condensation fan ........................................................................................................................................................................... 22

6.2.1 Fan configuration ............................................................................................................................................................................................................................. 22

6.2.2 DRV module ....................................................................................................................................................................................................................................... 23

6.3 Reversing valve................................................................................................................................................................................23

6.4 Hydraulic pump ..............................................................................................................................................................................23

6.5 Internal anti-freeze/supplementary electrical heaters ..........................................................................................................24

6.5.1 Supplementary electrical heaters................................................................................................................................................................................................. 25

6.6 External anti-freeze electrical heaters .......................................................................................................................................25

6.7 Boiler .................................................................................................................................................................................................25

7 Adaptive .................................................................................................................................................................. 26

7.1 Adaptive function........................................................................................................................................................................... 26

7.1.1 Adaptive function: regulator ......................................................................................................................................................................................................... 26

7.1.2 Set point offset (for ET<MT) .......................................................................................................................................................................................................... 26

7.1.3 Set point regression (for ET≥MT) ................................................................................................................................................................................................ 27

7.1.4 Protection in Cooling mode........................................................................................................................................................................................................... 28

7.1.5 Protection in Heating mode ..........................................................................................................................................................................................................28

7.1.6 Notes.................................................................................................................................................................................................................................................... 28

7.1.7 Example .............................................................................................................................................................................................................................................. 28

7.2 Fan control in Defrosting mode .................................................................................................................................................. 29

7.3 Antifreeze function for units with heat pump.......................................................................................................................... 29

8 Temperature control functions .........................................................................................................................30

8.1 Selection of operating mode from analogue input................................................................................................................30

8.2 Setting set points ............................................................................................................................................................................ 31

8.3

Dynamic set point ..........................................................................................................................................................................31

8.4 Switching from digital input........................................................................................................................................................ 33

8.5 Load control..................................................................................................................................................................................... 33

8.5.1 Compressor control – regulation algorithm.............................................................................................................................................................................. 33

8.5.2 Condensation fan control .............................................................................................................................................................................................................. 34

8.5.3 Reversing valve control ...................................................................................................................................................................................................................36

8.5.4 Hydraulic pump control.................................................................................................................................................................................................................. 36

8.5.5 Anti-freeze/supplementary electrical heater control .............................................................................................................................................................. 36

8.5.6 External anti-freeze electrical heater control............................................................................................................................................................................ 37

8.5.7 Supplementary electrical heater control.................................................................................................................................................................................... 37

8.5.8 Boiler control ..................................................................................................................................................................................................................................... 37

9 Functions.................................................................................................................................................................38

9.1 Recording hours of operation......................................................................................................................................................38

9.2 Defrosting.........................................................................................................................................................................................38

9.2.1 Defrost start .......................................................................................................................................................................................................................................38

9.2.2 Defrost end ......................................................................................................................................................................................................................................... 39

9.2.3 Counter mode.................................................................................................................................................................................................................................... 39

9.2.4 Start defrost temperature compensation...................................................................................................................................................................................39

9.3 Power failure.................................................................................................................................................................................... 40

10 Diagnostics ............................................................................................................................................................. 41

10.1 List of alarms ................................................................................................................................................................................... 41

10.1.1 TABLE OF DIGITAL ALARMS: .................................................................................................................................................................................................... 45

10.1.2 TABLE OF ANALOGUE ALARMS: ............................................................................................................................................................................................. 45

11 Parameters .............................................................................................................................................................46

11.1 Description of parameters............................................................................................................................................................ 46

11.1.1 Configuration parameters ........................................................................................................................................................................................................46

11.1.2 Compressor parameters (CP) ................................................................................................................................................................................................... 48

11.1.3 Fan control parameters (FAN) ................................................................................................................................................................................................ 48

11.1.4 Alarm parameters (ALL)............................................................................................................................................................................................................ 49

11.1.5 Anti-freeze/boiler parameters (FRO)......................................................................................................................................................................................50

11.1.6 Defrost parameters (DFR)......................................................................................................................................................................................................... 51

11.2 Table of parameters....................................................................................................................................................................... 51

12 Technical features................................................................................................................................................. 55

12.1 Technical information...................................................................................................................................................................55

12.2 Electromagnetic characteristic.................................................................................................................................................... 55

12.3 Dimensions.......................................................................................................................................................................................55

12.4 Regulations ...................................................................................................................................................................................... 55

13 Use of the device ................................................................................................................................................... 57

13.1 Permitted use................................................................................................................................................................................... 57

13.2 Forbidden use .................................................................................................................................................................................. 57

14 Responsibility and residual risks........................................................................................................................ 58

15 Disclaimer ...............................................................................................................................................................59

16 Examples of air conditioning circuits............................................................................................................... 60

16.1 Air-water chiller 1 compressor ....................................................................................................................................................60

16.2 Air-water chiller 2 compressor ....................................................................................................................................................61

16.3 Water-water Chiller 1 compressor.............................................................................................................................................. 62

16.4 Water-water Chiller 2 compressor.............................................................................................................................................. 63

16.5 Air-water heat pump 1 compressor ........................................................................................................................................... 64

16.6 Air-water heat pump 2 compressors.......................................................................................................................................... 65

16.7 Water-water heat pump 1 compressor ..................................................................................................................................... 66

16.8 Water-water heat pump 2 compressors.................................................................................................................................... 67

17 Glossary ...................................................................................................................................................................68

18 Appendix .................................................................................................................................................................68

18.1 CF Modules ......................................................................................................................................................................................70

18.1.1 CF modules: technical data......................................................................................................................................................................................................70

18.1.2 CF modules: connections .......................................................................................................................................................................................................... 70

18.1.3 CF modules: mechanical assembly......................................................................................................................................................................................... 71

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18.2

Copy Card......................................................................................................................................................................................... 72

18.3 EMC filter..........................................................................................................................................................................................72

18.4 Param Manager.............................................................................................................................................................................. 72

18.4.1 PCInterface interface module ..................................................................................................................................................................................................73

18.5 Sonde................................................................................................................................................................................................. 73

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References

Cross references

Icons for emphasis

2 HOW TO USE THIS MANUAL

This manual is designed to permit quick, easy reference with the following features:

References column:

A column to the left of the text contains references to subjects discussed in the text to help you locate the information you need quickly and easily.

Cross references:

All words written in italics are referenced in the subject index to help you find the page containing details on this subject; supposing you read the following text: ”when the alarm is triggered, the compressors will be shut down” The italics mean that you will find a reference to the page on the topic of compressors listed under the item compressors in the index. If you are consulting the manual “on-line” (using a computer), words which appear in italics are hyperlinks: just click on a word in italics with the mouse to go directly to the part of the manual that discusses this topic.

Some segments of text are marked by icons appearing in the references column with the meanings specified below:

Take note: information on the topic under discussion which the user ought to keep in mind

Tip: a recommendation which may help the user to understand and make use of the information supplied on the topic

under discussion.

Warning! : information which is essential for preventing negative consequences for the system or a hazard to personnel, instruments, data, etc., and which users MUST read with care.

Ech 200 Family

3 INTRODUCTION

Ech 200 is a compact device that permits control of air conditioning units of the following types:

• air-air

• air-water

• water-water

• condensing units

single-circuit, with 1 or 2 compressors (steps). It is possible to control condensation fan speed proportionately for currents of up to 2 A without using external devices.

Main characteristics:

• Temperature control based on inlet or outlet probe, depending on the type of machine and its configuration

• Condensation control

• Input may be configured for an NTC temperature probe or for a 4...20 mA signal (through parameters)

• Automatic change-over

• Boiler or supplementary electrical heater control for heating

• Internal fan control up to 3 steps in the air-air application

• Dynamic set point

• Parameter setting from the keyboard or through a personal computer

• Copy card for uploading and downloading parameter maps

• Remote keyboard (up to 100 m) which may be connected up directly without a serial interface

• 4-20 mA or 0-10 V output (optional internal card)

• User interface with a menu featuring 2 different levels of access through password management

• Interface menu may be fully configured from a PC.

3.1 Models available

The ECH 200 family’s models (base, keyboard and expansion) and a reference tabel containing the base parameters are illustrated below:

CH 200

Models available

Base

ECH210 BD

Expansion EXP200 is available for only model Ech 211.

Tastiera

EKW200

EW/S200

Espansione

EXP200

Base parameters

tabel

Model ECH 210 BD ECH 215 BD

Circuits 1 1

Application

Input/output

Features

Diagnostic

Compressors (in chiller) 2 2 Compressors (in heat pump) 1 2

Stages 1 1

Relays (2A 230 V~) 4 5 Triac (2A 230 V~) 1

Digital input 5 5 Analog output Analog input 4 4 Srew connectors • •

Remote keyboard • •

Remote on-off • • Heat pump control • • Defrost • • Condensing pressure control • • Water pump control • • Electric heater • •

Dynamic set point • •

Water free cooling • • Water flow alarm • • High pressure alarm • • Low pressure alarm • • Thermal compressor alarm • • Thermal fan alarm • • Antifreeze alarm • • High water temperature alarm • •

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Connection to

probe AI3

configured as NTC

4 INSTALLATION

Before proceeding with any operation, first make sure that you have connected up the power supply to the device through an appropriate external current transformer. Always follow these rules when connecting boards to one another and to the application:

• Never apply loads which exceed the limits set forth in these specifications to outputs;

• Always comply with connection diagrams when connecting up loads;

• To prevent electrical couplings, always wire low voltage loads separately from high voltage loads;

4.1 Connection diagrams

There are 2 ECH 200 BD models:

• ECH 210 BD: 2 step chiller + modbus

• ECH 215 BD: 2 step chiller + modbus

12AC AI1

12AC

GNDALL GND AI4 AI3 AI2

12DC TC ID5 ID4 ID3

ID2

ID1

D E F G H

Line

A: alarm output E: relay 1 B: LC filter F: relay 2 C: CF control G: relay 3 D: TK/relay 5 (only for 215B) H: relay 4

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Connection to

probe AI3

configured as

4..20mA C

12AC AI1

12AC

GNDALL GND AI4 AI3 AI2

12DC TC ID5 ID4 ID3

ID2

ID1

D E F G H

Line

Instrument configuration is determined by the values of the parameters associated with inputs and outputs.

A: alarm output E: relay 1 B: LC filter F: relay 2 C: CF control G: relay 3 D: TK/relay 5 (only for 215 BD) H: relay 4

Analogue inputs

Analogue inputs:

configuration

table

4.2 Configuration of analogue inputs

There are 4 analogue inputs:

• 3 NTC type temperature probes

• 1 input which may be configured for an NTC probe or a 4...20 mA signal.

The inputs, which shall henceforth be referred to as AI1…AI4, are configured as shown in the table below:

Pa. Description

Pa H05

Pa H06

Pa H07

Pa H08

Configuration of analogue input AI1

Configuration of analogue input AI2

Configuration of analogue input AI3

Configuration of analogue input AI4

0 1 2 3 4 5

Probe absent

NTC input Inlet water/air

NTC input Outlet water/air, antifreeze NTC input Condensation

NTC input Condensation

Digital input Request for

heating

Digital input, Request for

cooling

4...20 mA input for condensation

Multifunctional digital input

Value

Digital input Request for regulation algorithm Digital input for antifreeze

alarm

4...20 mA input for dynamic

set point

NTC input Outdoor temperature

NTC input Differential

Not permitted Not permitted

NTC input Anti-freeze for waterwater machines with automatic (internal) reversing of coolant gas

Not permitted

NTC probe Regulation alogorithm in

heating mode

for waterwater machines with manual reversal on water side Not permitted

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Digital inputs

Digital inputs:

polarity

Digital inputs:

configuration

table

If input AI3 is defined as a 4...20 mA input, the scale bottom value of the pressure input is also signfiicant: Pa H09, maximum input value; sets the corresponding value to a current of 20 mA

4.3 Configuration of digital inputs

There are 5 voltage-free digital inputs, which will henceforth be identified as ID1…ID5. AI1, AI2 e AI4 may be added to these if they are configured as digital inputs (through parameters Pa H05, Pa H06, and Pa

H08).

A total of 8 digital inputs is thus available.

The polarity of digital inputs is determined by the parameters listed below:

Parameter Description

Pa H10 Polarity of digital input ID1 Active if closed Active if open Pa H11 Polarity of digital input ID2 Active if closed Active if open Pa H12 Polarity of digital input ID3 Active if closed Active if open Pa H13 Polarity of digital input ID4 Active if closed Active if open Pa H14 Polarity of digital input ID5 Active if closed Active if open Pa H15 Polarity of input AI1 (configured as digital) Active if closed Active if open Pa H16 Polarity of input AI2 (configured as digital) Active if closed Active if open Pa H17 Polarity of input AI4 (configured as digital) Active if closed Active if open

Inputs ID1 and ID2 cannot be configured and fulfill the following functions:

• ID1 : High pressure input

• ID2 : Low pressure input

The functions of the other inputs may be configured using parameters:

• AI1, AI2: (Refer to Analogue inputs: configuration table)

• ID3, ID4, ID5 and AI4: as shown in the table below

Digital input

configuration parameters

Configuration parameter ID3

Configuration parameter ID4

Configuration parameter ID5

Configuration parameter AI4

If more than one of the parameters appearing in table 3 is configured with the same value, the function will be called up in response to at least one of the inputs.

Parameter code

Pa H18 Thermal

Pa H19 Thermal

Pa H20 Thermal

Pa H21 Thermal

0 1 2 3 4 5 6

switch compressor 1

Thermal switch fan

Thermal switch fan Thermal switch fan

Thermal switch fan

Flow switch

Value

Remote heat cool

Remote heat cool Remote heat cool

Remote heat cool

Value

0 1

Remote On-off

Thermal switch compressor 2

Thermal switch compressor 2 Thermal switch compressor 2

Thermal switch compressor 2

Request step 2

4.4 Configuration of outputs

Outputs

The table below shows the outputs depending on the model with the symbols used in the labels that are associated to the instrument and that will be shown next to the tabel.

Model

N° Symbol Capacity N° Symbol Capacity N° Symbol N° Symbol N° Symbol N° Symbol N° Symbol

ECH 210 BD 4 NO1..NO4 2A 1 TK 2A -- -- 1 KEYB 1 SERIAL 1 ALL 1 TC

ECH 215 BD 5 NO1..NO5 2A 0 -- -- 1

Relays Triac Optional Keyboard Serial Alarm

EXP

(digital) 1 KEYB 1 SERIAL 1 ALL -- --

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Fan

modules

piloting

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Labels

Relays:

configuration

table

12~ ALL GNDGND

RELAYS 2(2)A 250V~ TRIAC(TK) 2A 250V~

Model Ech 210 BD

12~ ALL GNDGND

RELAYS 2(2)A 250V~

Model Ech 215 BD

4.4.1 Relays

• NO1 - compressor, 2A resistive 250V~ (¼ HP at 240V~ , 1/8 HP 120V~ )

• NO2 - configurable, 2A resistive 250V~ (¼ HP at 240V~ , 1/8 HP 120V~ )

• NO3 - configurable, 2A resistive 250V~ (¼ HP at 240V~ , 1/8 HP 120V~ )

• NO4 - configurable, 2A resistive 250V~ (¼ HP at 240V~ , 1/8 HP 120V~ )

• NO5 – fan on-off, 2A resistive 250V~ (¼ HP at 240V~ , 1/8 HP 120V~ ) (for model ECH 215BD only)

Outputs NO2, NO3, NO4 may be configured as shown in the table below:

Pa. Description

Pa H22 Pa H23 Pa H24

If multiple outputs are configured to run the same resource, the outputs will be activated in parallel.

The maximum load present on the different outputs simultaneously must NOT exceed 8A

IA3 IA2 IA1IA4 ID3 ID2 ID1ID4ID5TC12~ 12=

Relay NO2

Pump Internal fan speed 1 Not permitted Not permitted configuration Relay NO3

Reversing valve Internal fan speed 3 Second compressor or

configuration Relay NO4 configuration

Anti-freeze electrical

heaters

SERIAL KEYB

NO1 NO2 NO3 NO4TK NNN

3456789 2 1

SERIAL KEYB

NO1 NO2 NO3 NO4NO5 NNN

3456789 2 1

EXP

Value

0 1 2 3

Not permitted

capacity step

Internal fan speed 2 Boiler Not permitted

TK output:

configuration

table

4.4.2 Triac

• TK – control of condensation fan or supplementary anti-freeze electric heaters.

For model Ech 210 BD the maximum current is 2A-250V~. For model Ech 210 BD NO downstream remote control of triac is permitted

For model Ech 215B NO triac is expected.

The TK output may be configured as shown below:

Pa. Description

Pa F01 Configuration of

TK output

Proportional

condensation fan control

0 1 2 3

ON-OFF temperature fan control

Value

Anti-freeze electric heaters for waterwater machines with gas reversal

ON-OFF fan control in response to compressor

Open collector

output

4.4.3 Alarm

ALL - 12-24 V~ output for alarm, maximum current 500 mA.

For models Ech 2xx BD the following parameters are available:

Pa H56 = determines the polarity of the alarm output:

• 0 = output is active (closed contact) when an alarm is active and when the machine is switched off.

• 1 = in the same conditions, the contact is open

Pa H57 = determines if the alarm is on with the machine on off from keyboard, with remote off and on stand-by

• 0 = alarm output not enabled in OFF or standby

• 1 = alarm output enabled in OFF or standby

The power supply to the alarm output must be kept separate from the controller power supply.

4.4.4 Fan module pilot output

TC - low voltage output piloting external fan control modules.

4.4.5 Optional output

EXP – optional internal output with configurable output.

For model Ech 210 BD the optional output is digital type and is open collector for piloting the second compressor’s relay:

REAR VIEW

4-20 mA or 0-10 V

output

Optional output:

configuration

table

CONN A

CONN B

SERIAL KEYB

EXP

EXTERNAL RELAY

Rear view: rear view of the control module External relay: external relay

For model Ech 215 BD the optional output is ANALOGUE type and can be used for piloting 4-20mA or 0-10V fans (through parameter Pa H25)

REAR VIEW

SERIAL KEYB

CONN A

CONN B

EXP

4-20 mA GND 0-10 V

Parameter Pa H25 must be configured to suit the version used, as shown in the table below:

Pa. Description

Pa H25 Optional output

configuration parameter

The analogue output value is directly proportionate to the external fan control. For example: if the external fan control has an output of 50%,

• with Pa H25= 1, the 4...20 mA output will have a value of 12 mA (50% calculated on the range 4…20), while the 0-10 V output will not be significant.

• with Pa H25= 2, the 0-10 V output will have a value of 5 V (50% calculated on the range 0…10), while the 4...20 mA output

will not be significant.

Rear view: rear view of the control module

0 1 2

Open Collector output for

compressor 2

Value

Proportional condensation

fan control, 4-20 mA

Proportional condensation

fan control, 0-10 V

4.4.6 Remote keyboard output

• KEYB - The keyboard output may be used for a remote keyboard.

Connect as shown in the diagram below:

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REAR VIEW

CONN A

REMOTE KEYBOARD

24 25 26

SERIAL KEYB

Temperature-

based operation

Pressure-based

operation

Temperature- or

pressure-based

operation:

configuration

table

CONN B

EXP

4.5 Physical quantities and units of measurement

4.5.1 Temperature- or pressure-based operation

Parameter Pa H49 may be used to select two different types of machine: operated on the basis of temperature or of pressure.

• If Pa H49= 0, parameters Pa H07=0 (probe AI3 absent), Pa F01 = 3 are forced (operation in response to a request from the compressor) .

• if Pa H49= 1 (temperature-based operation), parameters Pa HO7, F01 are forced as follows: H07= 1 (probe AI3 operating on the basis of temperature), F01= 3 (operation in response to a request from the compressor). During

defrosting, Pa d08 will be used as the defrost start temperature, and Pa d09 as the defrost end temperature.

REMOTE KEYBOARD: Remote keyboard

REAR VIEW: Rear view 24: blue 25: white 26: black

• if Pa H49= 2 (pressure-based operation), parameters Pa H07, F01 will be forced as follows: H07= 2 (probe AI3 operating on the basis of pressure), F01= 0 (proportional operation). During defrosting the following parameters are used: Pa d02 as the defrost start pressure and Pa d04 as the defrost end pressure.

• If Pa H49= 3, there are no constraints on the parameters.

Pa H49 Pa H07 Pa F01

0 0 probe AI3 absent 3 operation in response to a request from the

1 1 probe AI3 temperature 3 operation in response to a request from the

2 2 probe AI3 pressure 0 proportional operation 3 No constraints No constraints

compressor

4.5.2 Units of measurement

Control temperature may be displayed in:

• degrees °C, with decimal point

• degrees °F without decimal point.

Please remember the connection between the two measurement units: °F = °C x 9/5 + 32

The unit of measurement is determined by setting parameter H52:

Pa H52 Unit of

measurement

0 Degrees °C 1 Degrees °F

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Connection of

Copy Card

4.6 Serial outputs

There are 2 asynchronous outputs on the control:

• channel for serial communication with a personal computer through an Eliwell interface module

• channel for serial communication with a standard Eliwell keyboard. Power supply 12 VDC (2400, e, 8, 1).

4.6.1 Copy card device

Copy Card is a device that, if connected to the TTL serial port, allows to quickly program the instrument parameters. The

connection diagram is shown below:

Uploading and downloading data is made as follows:

UPLOAD (copy from INSTRUMENT TO COPY CARD)

This operation allows to download programming parameters to Copy Card.

Operations to be performed are:

• Insert the Copy Card when the instrument is on

• A password will be requested to perform this operation

• On the display, it is shown - - -

• Type the password value corresponding to the parameter value Pa H47

• Hold down both keys

• On uploading , a display appears - - -

• Disconnect Copy Card

Before performing UPLOAD, Copy Card is formatted. This operation causes all data entered in the Copy Card to be cleared. The formatting operation cannot be cancelled.

DOWNLOAD (copy from COPY CARD to INSTRUMENT)

This operation allows to upload programming parameters to instrument.

Operations to be performed are:

• Insert the Copy Card when the instrument is off

• Turn on the instrument

• Start uploading parameters into the instrument

• On uploading, Occ appears on the

• If the copy fails, Err appears on the display

• Turn off the instrument

• Disconnect Copy Card

• Turn on the instrument

A: Copy Card device B: connection through TTL cable C: channel for serial communication D: basic module

display

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Keyboard

mode

On-off – Reset

alarms

Mode and on-off

combinations

: set

5 USER INTERFACE

The interface on the front panel of the instrument can be used to carry out all the operations connected to the use of the instrument, and in particular to:

• Set operating mode

• Respond to alarm situations

• Check the state of resources

5.1 Keys

Selects operating mode:

• If the heating mode is enabled, each time the key is pressed the following sequence occurs:

stand-by Æ cooling Æ heating Æ stand-by

• if heating mode is not enabled:

stand-by Æ cooling Æ stand-by

In menu mode, this key acts as a SCROLL UP or UP key (increasing value).

Resets alarms, and turns the instrument on and off.

Press once to reset all manually reset alarms not currently active.

Hold down the key for 2 seconds to turn the instrument from on to off or vice versa. When it is off, only the decimal point remains on the display. In menu mode this key acts as a SCROLL DOWN or DOWN key (decreasing value)

Pressing the “mode” and “on-off” keys at the same time.

If you press both keys at the same time and then release within 2 seconds, you will move one level deeper in the display menu. If you press both keys for more than 2 seconds you will move one level up. If you are currently viewing the lowest level in the menu and you press both keys and release within 2 seconds, you will go up one level.

5.2 Displays

The device can provide information of all kinds on its status, configuration, and alarms through a display and leds on the front panel.

5.2.1 Display

Normal display shows:

• regulation temperature in tenths of degrees celsius with a decimal point, or in degrees fahrenheit without a

decimal point.

• the alarm code, if at least one alarm is active. If multiple alarms are active, the one with greater priority will be

displayed, according to the Table of Alarms.

• If temperature control is not analogue and depends on the status of a digital input (AI1 or AI2 configured as

digital inputs), the “On” or “Off” label will be displayed, depending on whether temperature control is active or

not.

• When in menu mode, the display depends on the current position. Labels and codes are used to help the user

identify the current function.

• Decimal point: when displaying hours of operation, indicates that the value must be multiplied x 100

5.2.2 SET display for air-air machines (for models Ech 2xxB only)

To make easier the user interface in air-air versions, if iyou place parameter Pa H53 = 1, the set for the selected mode will be displayed; pressing UP e DOWN keys on the remote keyboard directly modifies the set of the current mode. You cannot directly modify the set in the local keyboard.

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5.2.3 Led

Led compressor 1.

• ON if compressor 1 is active

• OFF if compressor 1 is off

• BLINK if safety timing is in progress

Compressor 2 (or capacity step) led

• ON if compressor (capacity step) is on

• OFF if compressor (capacity step) is off

• BLINK if safety timing is in progress

Defrost led

• ON if defrosting is in progress

• OFF if defrosting is disabled or has been completed

• BLINK if timing is in progress (defrost interval)

Electrical heater/boiler led

• ON if the internal anti-freeze electrical heater or boiler is on

• OFF if the internal anti-freeze electrical heater or boiler is off

Heating led

• ON if the device is in heating mode

Cooling led

• ON if the controller is in cooling mode

If neither the HEATING led nor the COOLING led is on, the controller is in STAND-BY mode

5.3 Remote keyboard

The remote keyboard on the display is an exact copy of the information displayed on the instrument, with the same leds;

Remote keyboard

It performs exactly the same functions as those described in the display section. The only difference is in use of the UP and DOWN keys (to increase and decrease value), which are separate from the MODE and ON/OFF keys. Connection with the controller is illustrated below:

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REAR VIEW

CONN A

REMOTE KEYBOARD

24 25 26

SERIAL KEYB

CONN B

EXP

REMOTE KEYBOARD: Remote keyboard

REAR VIEW: rear view of the control module

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The terminals of the remote keyboard are associated with the following colours:

• 24 Æ blue

• 25 Æ red

• 26 Æ black

Be cautious when connecting these terminals because they are reversed against the connector’s terminals.

5.4 Parameter programming – Menu levels

Device parameters may be modified using a Personal Computer (with the required software, interface module and cables), or using the keyboard. If using the keyboard, access to parameters is arranged in a hierarchy of levels which may be accessed by pressing the “mode and “on-off” keys at the same time (as described above). Each menu level is identified by a mnemonic code which appears on the display.

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Menu structure

The structure is set up as shown in the diagram below:

Level 0 Level 1 Level 2 Level 3

Level 4

Control Probe Current Alarm

Set point SEt

Analogue Inputs TP

Alarms Err

Digital inputs Id

Parameters PAr

Password Pss

Operating Hours

OHr

Label Set Cooling Coo

Label Set Heating HEA

Input Code t01...t04

Current alarms Code E00

Input Code 01...05

Configuration Parameters CnF

Compressor Parameters CP

Fan Parameters FAn

Alarm Parameters ALL

Pump Parameters PUP

Antifreeze Parameters Fro

Defrost Parameters dFr

Password Value

Compressor 1 hours OH1

Set Cooling Value

Set Heating Value

Analogue Input Value

Digital Input Status

Parameter Index H01...

Parameter Index C01...

Parameter Index F01...

Parameter Index A01...

Parameter Index P01...

Parameter Index r01...

Parameter Index d01...

Number of hours Parameter

Parameter Value

Compressor 2 hours OH2

Pump hours OPH

ECH 200 BD

Number of hours Parameter

Numero ore parameto

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Label

5.4.1 Visibility of parameters and sub-menus

With a personal computer, interface key (copy card), suitable cables and the “Param Manager” software, it is possible to restrict the visibility and modification of parameters and entire submenus. A “visibility value” may be assigned to each parameter, as described below:

Value Meaning

0003 Parameter or label visible at all times 0258 Parameter or label visible if user password entered correctly (password = Pa

H46)

0770 Parameter or label visible if user password entered correctly (password = Pa

H46). Parameter cannot be modified.

0768 Parameter visible from PC only.

Some visibility settings are factory set. For more information, please refer to the “Param Manager” instructions.

Power step

Polarity NO3

6 SYSTEM CONFIGURATION

In this section we will look at how to configure parameters for various loads on the basis of the type of installation to be controlled.

6.1 Compressors

Ech 200 BD can control systems consisting of one cooling circuit with 1 or 2 compressors. If there is a capacity step, it will be considered as a compressor. Each compressor is piloted by a device relay.

Compressors will turned on or off depending on the temperatures detected and the temperature control functions that

have been set (refer to the section on Compressor controls – regulation algorithm)

6.1.1 Compressor configuration

The first compressor must be connected to output NO1;

The second compressor, if there is one, must be connected to output NO3, with the following parameter settings:

• Pa H48=2 (2 compressors per circuit)

• Pa H23=2 (output NO3 configured as compressor/capacity step) or Pa H25=0 (open collector output for the

second compressor/capacity step).

If the open collector output is used, an external relay will be required for compressor management.

If NO3 is configured as a second compressor/capacity step output, polarity may be selected using the parameter

Pa H51, polarity of compressor 2/ capacity step output (on relay 3 only).

• 0= relay ON if compressor 2/ capacity step ON,

• 1= relay ON if compressor 2/ capacity step OFF.

The polarity of NO1 is unvariable:

• relay ON if compressor 1/ capacity step ON

Balancing hours of

operation

Unvaried sequence

Safety timing

-on timing

On-on timing

Off-on and on-on

comp. diagram

6.1.2 Compressor on/off sequence

The order in which the compressors come on may be modified using parameter Pa H50, compressor on sequence:

• Pa H50=0 compressors come on depending on the number of hours of operation (balancing hours of operation)

• Pa H50=1 compressor 1 is turned on first, followed by compressor (or capacity step) 2 (unvaried sequence).

If Pa H50= 0, the compressor with the least hours of operation comes on first, unless it is subject to: a current compressor shutdown alarm (refer to table of alarms)

safety timing in progress.

If Pa H50= 0, the compressor with the most hours of operation is turned off first.

If Pa H50=1: compressor 2 (capacity step) is turned on only if compressor 1 is already on. compressor 1 is turned off only if compressor 2 (capacity step) is already off. If there is a compressor 1 shutdown alarm, compressor 2 will be turned off immediately.

6.1.3 Compressor timing

The turning on and off of compressors must comply with safety times which may be set by the user using the parameters specified below:

There is a safety interval between the time a compressor goes off and the time the same compressor comes back on (compressor on…off safety time, controlled by parameter Pa C01); This interval of time must elapse when the “ECH 200 BD” is turned on.

There is a safety interval between the time a compressor is turned on and the time it is turned on again (compressor on...on safety time, controlled by parameter Pa C02) .

COMPR

OFF

Pa C01

Pa C02

Time

COMPR: compressor Time: seconds x 10

Pa C01: ON-OFF safety time Pa C02: ON-ON safety time

On-on and off-off

Timing

diagram for 2

comp.

On-on and off-off

diagram for 2

comp.

If the system includes 2 compressors (or capacity steps) there are intervals of time which must pass between turning on of the 2 compressors (Pa C06) and turning off of the 2 compressors (Pa C07). An amount of time determined by parameter

Pa D11 (compressor on delay during defrosting) must pass between turning on a compressor and a capacity step.

The off time interval between compressors is not applied in the event of a compressor shutdown alarm, in which case they stop immediately.

COMPR1

OFF

COMPR2

OFF

Pa C05

Pa C07

Time

COMPR1: compressor 1 COMPR2: compressor 2 Time: time in seconds

Pa C05: on time interval between compressors Pa C07: off time interval between compressors

6.2 Condensation fan

Various fan piloting modules can be connected to “Ech 200”, based on the models available Look at the following table:

Ech 210 * *

Legend:

6.2.1 Fan configuration

The reference is to the fan control unit located outside near the heat exchanger which normally acts as a condenser. If a heat pump is used, the exchanger will operate as an evaporator.

First of all, connect the fan up correctly to the appropriate output (refer to connection diagrams).

The fan output may be configured to work proportionately or as ON-OFF.

Pa F01 – Selection of triac output mode (TK and TC):

The fan may also be controlled by the output associated with the optional board:

Pa H25 – configuration of optional board:

If the output is configured as proportional TK the PICK-UP, PHASE SHIFT and IMPULSE DURATION parameters are also significant.

TK TC 4-20mA 0-10V

• TK: 230V~/2A command

• TC: control signal for fan control modules (500w,1500w,2200w)

• 4-20mA o 0-10V: standard command for fan control through external module (inverter).

• On model Ech 210 BD, the fan may be controlled with a proportionate output with a maximum load of 2A.

• 0= proportional fan output (TK)

• 1= ON-OFF fan output; in this mode the fan will be off if the proportional control has an output of 0 , on at

maximum speed (no capacity step) if control output is greater than 0.

• 2= external anti-freeze electrical heater control, for water-water machines with gas reversal

• 3= fan command for ON-OFF operation in response to compressor request. In this mode the fan is turned off

and on depending on compressor status.

• 0= Open Collector output for second compressor

• 1= 4...20 mA fan speed output

• 2= 0-10 V fan speed output

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Pick-up

Phase shift

Impulse duration

Connection

diagram of the

DRV module

Every time the external fan is started up, power is supplied to the exchanger fan at maximum voltage, and the fan operates at maximum speed, for an amount of time equal to Pa F02 seconds; after this time the fan operates at the speed set by the regulator.

Pa F02 = Fan pick-up time (seconds)

Determines a delay during which it is possible to compensate the different electrical characteristics of the fan drive motors:

Pa F03 = duration of fan phase shift, expressed in microseconds x 200.

Determines the duration of the TK output piloting impulse in microseconds x 200

Pa F04= triac piloting impulse duration

6.2.2 DRV module

If a DRV three-phase fan module is used, follow the diagram below:

DRV

J5=3

J6=on

J7=on1

Energy/EWCM

J8=off

Polarity

Continuous

operation

TF: current

transformer

6.3 Reversing valve

The reversing valve is used only when operating in “heat pump” mode.

It is active if:

• relay 3 configuration parameter Pa H23= 0.

• heat pump is enabled, Pa H28= 1.

The reversing valve is off if the instrument is OFF or on stand-by.

Polarity may be configured using the following parameter:

Pa H38= Reversing valve polarity

• 0: relay active in cool mode

• 1: relay active in heat mode

In cooling mode the reversing valve is never active.

6.4 Hydraulic pump

The hydraulic pump must be connected to the output of relay NO2 (refer to connection diagram). It is active only if the corresponding parameter, Pa H22, is set to 0.

The pump may be configured to function in three different ways using parameter Pa P01:

• Pa P01 = 0 : continuous operation

• Pa P01 = 1 : operation when called up by regulation algorithm (compressor)

• Pa P01 = 2 : cyclic operation

CONTINUOUS OPERATION: Pump is on at all times.

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Operation in

response to

request

OPERATION IN RESPONSE TO REQUEST:

• The pump comes on in response to a request from the regulation algorithm.

• The compressor comes on following a delay (Pa P02) after the time the pump comes on.

• The pump goes off following a delay (Pa P03) after the regulation algorithm has OFF status.

• During defrosting, when the compressor is OFF, the pump stays on.

TERM

OFF

Time

COMPR

OFF

Time

Cyclic operation

configuration

OFF

Time

Pa P03Pa P02

CYCLIC OPERATION:

The pump is turned on and off independently of the regulation algorithm. It operates for constant intervals of time, as described below:

The pump is turned off if:

When there is a current flow switch alarm with automatic resetting (refer to table of alarms), the pump will remain on even if the compressor is OFF due to the alarm..

6.5 Internal anti-freeze/supplementary electrical heaters

Anti-freeze/supplementary heaters are connected up to relay output NO4 (refer to connection diagram). They are active only if the corresponding parameter, Pa H24, is set to 0.

If the output is configured this way, it will command the electrical heaters to come on and go off in accordance with the electrical heater configuration parameters, r01…r06, as described in the table below:

TERM: regulation algorithm COMPR: compressor WP: pump Time: time in seconds

Pa P02: delay compressor-pump off Pa P03: delay pump-compressor on

• the pump stays on for an amount of time equal to Pa P02 (seconds*10),

• the pump is then turned off and stays off for an amount of time equal to Pa P03 (seconds*10).

• there is an alarm comporting pump shutdown, such as a manually reset flow switch alarm

• the instrument is on stand-by or OFF

Pa. Description

Pa r01 Defrost configuration comes on only when requested

Pa r02 Cooling mode configuration off during cooling On during cooling (depending

Value

0 1

Always on during defrost

by control

on anti-freeze electrical heater control)

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Pa r03 Heating mode configuration off during heating On during heating (depending

Pa r04 Configuration of electrical heater control

probe in heating mode

Pa r05 Configuration of control probe in cooling

mode

Pa r06 Configuration when OFF or on stand-by Off when instrument is OFF or

6.5.1 Supplementary electrical heaters

If Pa r15 =1 electrical heaters become anti-freeze/supplementary electrical heaters. Their operating mode is described in the paragraph on the supplementary electrical heater control

controlled on the basis of AI1 (refer to connection diagrams) if Pa H05 (config. AI1)= 1 otherwise off

controlled on the basis of AI1 (refer to connection diagrams)

if Pa H05 (config. AI1)= 1 otherwise off

on stand-by

on anti-freeze electrical heater control) Controlled on the basis of AI2 (refer to connection diagrams)

if Pa H06 (config. AI2)= 1 otherwise off Controlled on the basis of AI2 (refer to connection diagrams) if Pa H06 (config. AI2)= 1 Otherwise off

On when instrument is OFF or on stand-by

6.6 External anti-freeze electrical heaters

External anti-freeze electrical heaters are used on water-water machines with gas reversal.

They are connected to the triac TK output (refer to connection diagram) and controlled on the basis of probe AI3 (refer to analogue inputs) . They are active only if:

• output TK is configured for anti-freeze electrical heaters, on a water-water machine with gas reversal (Pa F01=

• AI3 is configured as an NTC anti-freeze input on a water-water machine with gas reversal (Pa H07= 4)

6.7 Boiler

The output for boiler controller is relay NO4 (refer to connection diagram) with a suitable configuration.

The boiler output may operate in two different ways:

• to supplement another heating resource

• to provide heating with boiler only.

SUPPLEMENTARY BOILER: The output is active if:

• relay 4 configuration parameter, Pa H24= 2.

• heat pump is declared present, Pa H28= 1.

• AI4 is configured as an outdoor probe, Pa H08= 3.

HEATING BOILER:

The output is active if: relay 4 configuration parameter, Pa H24= 2. heat pump is declared not present (H28= 0)

The boiler is turned off if:

• the device is operating in cooling mode

• the device is on stand-by or OFF

• there is a boiler shutdown alarm (refer to table of alarms)

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Minimum time

Actual time

7 ADAPTIVE

ECH 200BD is a special model of the ECH 200 line that features extremely versatile characteristics and features, particularly

suited for small plants.

These are:

• Adaptive function

• Fan control in Defrosting mode

Antifreeze function with heat pump, depending on water pump and heat pump.

7.1 Adaptive function

Chillers are generally equipped with water accumulation tanks. These provide the thermal inertia required to prevent the compressors from being frequently started or switched off when the request of heat for the rooms to be cooled is low (frequent start and switching off operations influence the lifecycle of

compressors).

In some cases, the setting of safety limits for the start and switching off operations can delay the start of the compressors as compared to the requests of the regulation algorithm, thus reducing the efficiency of the whole system.

Example: if a chiller is designed to supply 10 fan coils and only one of these chillers is running in Cooling mode, the

interval of time during which the compressor is expected to stay on is low; in addition the need of complying with the safety limits would cause an increase of the water temperature above the set point determined by hysteresis. Accumulation tanks would increase the thermal capacity and provide the inertia required to increase the running time, though resulting in higher costs and in the need for increasing even the minimum size of the unit. The Adaptive function, which changes the set points and hysteresis, electronically simulates the inertia of a water accumulation container, thus also limiting its use.

7.1.1 Adaptive function: regulator

It is useful to remember that the start and switching off operations of compressors must comply with the standards of safety limits.

The function analyses the actual running time of the compressor (ET) comparing it with the minimum running time that has been set (MT).

Parameters

• C01 Compressor OFF-ON time

• C02 Compressor ON-ON time

• C08 Enables the Adaptive function

• C09 Set block in Cooling mode

• C10 Set block in Heating mode

• C11 Offset constant

• C12 Reset time for increases

• C13 Proportional Part Offset Coefficient

The minimum time (MT) is represented by the difference between the ON/ON (C02) and the OFF/ON parameter (C01):

• MT = C02 – C01

The actual running time (ET) is automatically registered by the unit.

Adaptive offsets

7.1.2 Set point offset (for ET<MT)

The ON set point is changed by a value equivalent to the adaptive offset (AO) according to the formula shown below, when the compressor is switched off:

• AO=((MT – ET)* C13) + C11

That is

• AO=((C02– C01 – ET)* C13) + C11

• The set point is reduced in “Cooling” mode: SET(1) = SET(COO) – AO(1);

SET(2) = SET(1) – AO(2) and so on

• The set point is increased in “

Heating” mode: SET(1) = SET(HEA) + AO(1);

SET(2) = SET(1) + AO(2) and so on

The index associated to the set point and offset values refers to the compressor cycle, after which all variables are updated. The updated values are then used for the next cycle. “SET(COO)” and “SET(HEA)” are the original set point values (for example those entered from the keyboard with menus SET/COO and /HEA).

Examples:

set+Int

SET

Comp.

AI1

SET 1

SET 2

Cooling Mode

Heating Mode

OFF

Cycle 0:

• Set point: SET(COO)

• Hysteresis: SET(COO) + C03

Cycle 1:

• Set point for cycle 1: SET(1) = SET (COO) – AO(1)

• Hysteresis for cycle 1: SET(1) + C03 + AO(1) = SET(COO) - AO(1)

Cycle 2:

• Set point for cycle 2: SET(2) = SET (COO) – AO(1) – AO(2)

• Hysteresis for cycle 2: SET(COO) + C03

Cycle 0:

• Set point: SET(HEA)

• Hysteresis: SET(HEA) - C04

Cycle 1:

• Set point for cycle 1: SET(1) = SET (HEA) + AO(1)

• Hysteresis for cycle 1: SET(HEA) - C04 + AO(1) = SET(HEA) - AO(1)

Cycle 2:

• Set point for cycle 2: SET(2) = SET (HEA) + AO(1) + AO(2)

• Hysteresis for cycle 2: SET(HEA) - C04

It is useful to notice that the start temperature in both modes remains constant for each cycle even when the adaptive

function is enabled.

This increases the range between the set point and start temperatures, reducing the number of starts/stops of the compressor.

+ C03 + AO(1) = SET(COO) + C03

+ C04 + AO(1) = SET(HEA) + C04

7.1.3 Set point regression (for ET≥MT)

If the cycle time is long enough (and not above MT), the regression of the actual set point occurs: the set point is changed by C11 for each C12 range (starting from the beginning of the cycle).

• In Cooling mode, the set point (applicable to cycle N) is increased:

• In Heating mode, the set point is reduced, as explained above, down to the limit value of SET(HEA).

This produces a balancing of the “adaptive” function with long cycle times because longer cycle times are compatible with those of the compressor.

Example: cooling

After C12: SET(N) + C11 After 2*C12: SET(N) + 2*C11 And so on, up to limit value of SET(COO)

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Set+Ist

SET

set effettiv

C11

AI1

omp.

C12

7.1.4 Protection in Cooling mode

If the output temperature is AI2 < C09 during a generic cycle n, the controller performs the following operations:

• Switches the compressor(s) off.

7.1.5 Protection in Heating mode

If the output temperature is AI2 > C10 during a generic cycle n, the controller performs the following operations:

• Switches the compressor(s) off.

This adjustment can be considered a pre-threshold of the anti-freeze alarm (the cycle ends without generating alarms) if the adaptive function yields a very low actual set point. The setting of C10 should be chosen according to the high pressure protections in use (pressure switch calibration, type of coolant used...).

C12

7.1.6 Notes

• The adaptive algorithm is reset (i.e. the original set point is restored) in the conditions listed above and when the

controller is switched off (i.e. not after a manual or remote off or standby condition).

• If the compressor switches off due a thermal switch or equivalent alarm and ET<MT, the actual offset and set

point are updated as if the cycle had been completed (the cycle that follows this alarm will adopt a different set point).

• If the compressor switches off due to the transition between modes, for example from standby to remote off

(from digital input), and ET<MT, the offset is updated as if the cycle had been completed . The cycle that

7.1.7 Example

The running of the compressor for two minutes will yield the following values:

follows this alarm will adopt the set point selected for the mode +/- offset, depending on the mode).

• Set heat = 45.0 °C

• Set cool = 12.0 °C

• C01 = 18 S*10 (3 minutes)

• C02 = 36 S*10 (6 minutes)

• C08 =1

• C09 = 4 °C

• C10 = 50 °C

• C11 = 0.5 °C

• C12 = 30 S*10 (5 minutes)

• C13 = 0.2 °C/(10*s)

• Minimum time:

MT = C02 –C01 = 36-18 = 18*10*s (3 minutes)

• Actual time:

ET = 12 (12*10*s = 2 minutes)

• Adaptive offset

AO = (MT – ET) * C13 + C11 = (18-12)*0.2 + 0.5 = 1.7°C

• If Heating Mode:

SET(1) = SET(HEA) + AO(1) = 45 + 1.7 = 46.7°C

• If Cooling Mode:

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SET(1) = SET(COO) – AO(1) = 12 –1.7 = 10.3

7.2 Fan control in Defrosting mode

During the defrosting phase, the condensing pressure may sometimes reach alarm levels before the heat exchanger has defrosted all the ice. To prevent this condition from tripping the high pressure alarm, the unit starts fans at minimum speed if the pressure/temperature read by probe AI3 is above value F22. The hysteresis of the regulator is above parameter F11.

FAN

F22

MIN

OFF

F11

The function can be enabled with parameter F21.

FAN : fan AI3: probe AI3 MIN: minimum speed of the fan

AI3

7.3 Antifreeze function for units with heat pump

This function enables the water pump to be used in Antifreeze mode. If the water temperature is low and the unit is not running in Heating mode, the hydraulic pump starts followed by the compressor. The function is always active if A23=1. If the water pump is off and temperature is AI1< A20, the unit starts the water pump. If the temperature is AI1<A21, the unit starts the heat pump (if it is off). This operating is carried out in modes: Off, Standby and Heating with active remote Off. When the unit displays the Heating mode, it is no longer possible to change the operating mode from the keyboard or by means of a digital input. The control resumes normal operation if AI1> A22.

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Operating modes

Cooling

Heating

Stand-by

Device of

Operating modes:

configuration

table

8 TEMPERATURE CONTROL FUNCTIONS

Once Ech 200 has been configured, loads may be controlled on the basis of temperature and pressure conditions detected by probes and temperature control functions which may be defined using the appropriate parameters.

There are 4 possible operating modes:

• cooling

• heating

• stand-by

• off

Cooling: this is the “summer” operating mode; the machine is configured for cooling.

Heating: this is the “winter” operating mode; the machine is configured for heating

Stand-by: the machine does not govern any temperature control function; it continues to signal alarms

Off: the machine is turned off.

The operating mode is determined by settings entered on the keyboard and by the following

Parameters:

• Operating mode parameter (Pa H27)

• Heat pump parameter (Pa H28)

• Configuration parameter AI1 (Pa H05) ( refer to Analogue inputs: configuration table)

• Configuration parameter AI2 (Pa H06) (refer to Analogue inputs: configuration table)

Operating mode selection parameter (Pa H27)

• 0= Selection from keyboard

• 1= Selection from digital input (refer to digital inputs)

• 2= Selection from analogue input (probe AI4)

Heat pump parameter (Pa H10)

• 0 = Heat pump not present

• 1= Heat pump present

Heating mode is permitted only if:

• heat pump is present (Pa H28= 1) or

• relay NO4 is configured as boiler output (Pa H24= 2).

Combinations of these parameters will generate the following rules:

Operating mode Mode selection

Mode selection from keyboard 0 Other than 2 Other than 2 Mode selection from digital input. 1 Other than 2 Other than 2 If input AI1 is on, operating mode is heating; if not, stand-by If input AI2 is on, operating mode is cooling; if not, stand-by If input AI1 is on, operating mode is heating; if AI2 is on, operating mode is cooling; if AI1 and AI2 are both on, there is a configuration error; if neither is on, operating mode is stand-by

parameter

Pa H27

Any 2 Other than 2

Any Other than 2 2

Any 2 2

Configuration parameter AI1

Pa H05

Configuration parameter AI2

Pa H06

8.1 Selection of operating mode from analogue input

The controller permits selection of operating mode on the basis of the temperature detected and supplied by input AI4 (refer to analogue inputs). This is permitted if both of the following conditions apply:

• probe AI4 is configured as an outdoor temperature probe (Pa H08= 3)

• mode selection parameter Pa H27= 2

• In this case mode is selected automatically, on the basis of the following regulation algorithm parameters:

• Heating mode set point Pa H29

• Mode selection differential Pa H30.

Diagram

An example of operation is shown in the diagram below:

Mode

Pa H29

Cooling

Heating

Control

parameters

Pa H30

Pa H29: Heating mode set point Pa H30: Mode selection differential

Ext temp: outdoor temperature

Mode may be changed from the keyboard for temperatures which fall within the mode selection differential (determined by parameter H30). If this is not done:

• If the outdoor temperature is less than H29, the instrument will operate in heating mode,

• If the outdoor temperature is more than Pa H29 + Pa H30, the instrument will operate in cooling mode.

Ext Temp

8.2 Setting set points

Loads are turned on and off dynamically on the basis of temperature control functions, temperature/pressure values

detected by probes, and set points.

There are two set point values:

• Cooling set point: this is the referenced set point when the device is in cooling mode

• Heating set point: this is the referenced set point when the device is in heating mode

Set points may be modified using the keyboard, by accessing the “SET” sub-menu (refer to menu structure).

They may be given values within a range determined by parameters Pa H02 – Pa H01 (Heating) and Pa H04 – Pa H03 (Cooling).

8.3 Dynamic set point

The regulation algorithm may be used to modify the set point automatically on the basis of outdoor conditions. This modification is achieved by adding a positive or negative offset value to the set point, depending on:

• 4-20 mA analogue input (proportionate to a signal set by the user) or

• temperature of outdoor probe

This function has two purposes: to save energy, or to operate the machine under particularly harsh outdoor temperature conditions.

The dynamic set point is active if:

• Activation parameter Pa H31 = 1

• probe AI3 (analogue inputs) is configured as a current input for a dynamic set point (Pa H07 = 3) or probe AI4

(analogue inputs) is configured as an outdoor temperature probe (Pa H08 = 3)

Dynamic set point control parameters:

• Pa H32= Max. offset during cooling.

• Pa H33= Max. offset during heating

• Pa H34= Outdoor temperature set point during cooling

• Pa H35= Outdoor temperature set point during heating

• Pa H36= Delta of cooling temperature

• Pa H37= Delta of heating temperature

The interaction of these parameters is illustrated in the graphs below:

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Modification

depending on

current input with

positive offset

Positive Offset (H32>0 or H33>0)

Offset

Max offset

Modification

depending on

current input with

negative offset

Modification

depending on

outdoor

temperature with

positive offset

4 mA 20 mA

I: current

Negative Offset (H32<0 or H33<0)

Offset

4 mA 20 mA

Max offset

Pa H34 (cooling) o Pa H35 (heating)

I: current

Delta < 0 Delta > 0 Ext Tem

Pa H34: outdoor temperature set point during cooling Pa H35: outdoor temperature set point during heating

Ext Temp: outdoor temperature

Positive Offset

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Modification

depending on

outdoor

temperature with

negative offset

Negative Offset

Pa H34 (cooling) o Pa H35 (heating)

Tem

Delta < 0 Delta > 0

Regulation

algorithm in cool

mode

Pa H34: outdoor temperature set point during cooling Pa H35: outdoor temperature set point during heating

Ext Temp: outdoor temperature

8.4 Switching from digital input

Digital inputs ID3, ID4, ID5 and AI4 (analogue inputs) may be configured to give an ON-OFF command. If this type of input

is activated, the instrument will turn off all loads and show “E00” on the display.

8.5 Load control

The parameters used to control loads on the basis of the temperature/pressure conditions detected by the probes are described below.

8.5.1 Compressor control – regulation algorithm

The regulation algorithm calculates the load to be supplied through the compressors for both heating and cooling.

REGULATION ALGORITHM IN COOL MODE

If probe AI2 (analogue inputs) is not configured as a digital input for requests for cooling (Pa H06=2) or probe AI1(analogue inputs) as a digital input for regulation algorithm requests (Pa H05=3), compressor management will depend on environment temperature and a SET POINT which may be entered using the keyboard.

• AI1 = temperature of inlet water or inlet air

• SET COOL= cooling set point set from keyboard

• Pa C03 = hysteresis of cooling thermostat

• Pa C05 = delta of power step intervention

Cooling diagram

Power

Step 2

SET POINT

Step 1

Pa C03 Pa C03

Pa C05

T emp AI1

Power: power Step 1: Step 1 Step 2: Step 2 Temp AI1: temperature from probe linked in AI1

Pa C03: hysteresis of cooling thermostat Pa C05: Power algorithm step intervention differential

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Regulation

algorithm in heat

mode

Heating diagram

If Pa H05= 3, the compressor will be turned off and on depending on the status of input AI1. If Pa H06= 2, the compressor will be turned off and on depending on the status of input AI2. If a digital input is configured as a second step request (H18 or H19 or H20 or H21= 6), the response will depend on this input. This function is active only if Pa H05= 3 or Pa H06= 2.

REGULATION ALGORITHM IN HEAT MODE

If probe AI1 (analogue inputs) is not configured as a digital input for requests for heat (Pa H05=2) or as a digital input for regulation algorithm requests (Pa H05=3), compressor management will depend on:

• temperature AI3 (analogue inputs), if configuration parameter ST3 Pa H07= 5 (for water-water machines with

water reversal)

• otherwise, temperature AI1(analogue inputs)

• a HEATING SET POINT which may be set from the keyboard

• AI1 = temperature of inlet water or inlet air

• SET HEATING= Heating set point set using the keyboard

• Pa C04 = hysteresis of heating thermostat

• Pa C05 = Delta of step intervention

Power

Step 2

SET POINT

Step 1

Pa C04Pa C04

Pa C05

T emp AI1/AI3

Power: power Step 1: Step 1 Step 2: Step 2 Temp AI1/AI3: temperature from probe linked in AI1or

in AI3

Pa C04: hysteresis of heating thermostat Pa C05: Power algorithm step intervention differential

If Pa H05= 2 or 3, the compressor will be turned off and on depending on the status of input AI1. If a digital input is configured as a second step request (Pa H18 or Pa H19 or Pa H20 or Pa H21= 6), the response depends on this input. This function is active only if Pa H05= 2 or 3.

A compressor will always be off if:

• It is not associated with a relay (power outputs)

• The compressor has been shut down (refer to table of alarms)

• Safety timing is in progress

• The boiler is on

• The time lapse between pump on and compressor on is in progress (safety timing)

• Preventilation is in progress in cooling mode

• Ech 200 is on stand-by or off

• The parameter for configuration of probe AI1 Pa H05 = 0 (probe absent)

8.5.2 Condensation fan control

Condensation control depends on the condensation temperature or pressure for the circuit. Fan control will be on if:

• at least one probe per circuit is configured as a condensation probe (pressure or temperature); if not, the fan for the circuit will come ON and go OFF in response to the circuit compressors.

Fan control may be independent of the compressor, or it may be carried out in response to requests from compressors; Operating mode is determined by parameter Pa F05:

Value

0 1

Pa F05:

fan output mode

if compressor is off, fan is off condensation control independent of

compressor

When the compressor is started up, if the proportional control requests fan cut-off, the cut-off may be excluded for an amount of time equal to Pa F12 beginning when the compressor is turned on. If the controller requests cut-off during this time period, the fan will run at minimum speed.

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Silent speed

Cool mode

Fan control in cool

mode: diagram

The fan control unit may have a minimum speed, a maximum speed, and a “silent” speed (for silent operation, for instance during the night), as well as a proportional band within these values.

The fan will always be off if:

• there is an alarm indicating that a condensation fan has shut down (refer to table of alarms).

• Ech 200 is on stand-by or off

CONDENSATION FAN CONTROL IN COOL MODE

• Pa F06 = Minimum fan speed in COOL mode;

• Pa F07 = Maximum silent fan speed in COOL mode

• Pa F08 = Minimum fan speed temperature/pressure set point in COOL mode

• Pa F09 = Prop band. Fan in COOL mode;

• Pa F10 = Fan cut-off delta;

• Pa F11 = Cut-off hysteresis;

• Pa F13 = Maximum fan speed in COOL mode

• Pa F14 = Maximum fan speed temperature/pressure set point in COOL mode

An example of interaction of these parameters is shown in the figure below:

External fan in COOL mode

Speed (%)

Pa F13

Pa F07

Pa F08

Pa F14

Heat mode

Pa F06

OFF

Pa F11

Pa F10

Pa F09

Speed: fan speed Temp: temperature Press: pressure

CONDENSATION FAN CONTROL IN HEAT MODE

• Pa F15 = Minimum fan speed in HEAT mode;

• Pa F16 = Maximum silent fan speed in HEAT mode;

• Pa F17 = Minimum fan speed temperature/pressure set point in HEAT mode;

• Pa F09 = Prop band. Fan in HEAT mode

• Pa F10 = Fan cut-off delta;

• Pa F11 = Cut-off hysteresis;

• Pa F19 = Maximum fan speed in HEAT mode;

• Pa F20 = Maximum fan speed temperature/pressure set point in HEAT mode.

An example of interaction of these parameters is shown in the figure below:

Pa F11

Temp/Press

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Fan control in

heat mode:

diagram

Speed (%)

Pa F19

Pa F16

Pa F15

OFF

Control is not active if:

• defrosting is in progress

• the boiler is on

Pa F20

Pa F11

Speed: fan speed Temp: temperature Press: pressure

Outdoor fan in HEAT mode

Pa F17

Pa F10Pa F18

Pa F11

Temp/Press

8.5.3 Reversing valve control

Refer to section on reversing valves.

8.5.4 Hydraulic pump control

Refer to section on the hydraulic pump.

8.5.5 Anti-freeze/supplementary electrical heater control

Electrical heater control employs two separate set points, one for heating mode and one for cooling mode:

• Pa r07: electrical heater 1 set point in heating mode

• Pa r08: electrical heater 1 set point 1 in cooling mode

The two set points of the anti-freeze electrical heaters fall between minimum and maximum values which the user may set using the following parameters:

• Pa r09: maximum set point of anti-freeze electrical heaters

• Pa r10: minimum set point of anti-freeze electrical heaters

When off or on stand-by, control is based on the cooling set point, using the control probe used in the heating mode

Parameter Pa R11 determines the hysterisis around the set points for the anti-freeze/supplementary electrical heaters.

An example of operation is shown in the diagram below:

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Diagram

Diagram illustrating anti-freeze/supplementary electrical heater control

Power

Pa r07 (heating) o Pa r08 (cooling)

OFF

Pa r11

Power: power Temp: temperature

8.5.6 External anti-freeze electrical heater control

Control is based on probe AI3 with a set point which may be set using parameter Pa r12 and a hysteresis of Pa r11. Control is similar to that of internal electrical heaters.

8.5.7 Supplementary electrical heater control

If Pa r15=1 in heat mode, electrical heaters are activated on their control, and are activated even if AI1 < (SET Heating Pa

r14).

Control hysteresis is Pa C04 (hysteresis of heating control).

8.5.8 Boiler control

SUPPLEMENTARY BOILER: The boiler is turned on in heating mode if outdoor temperature drops below Pa r13. In this case the compressor and fan are turned off and heating is achieved using only the boiler. The heat pump is turned back on if the outdoor temperature exceeds Pa r14+Pa r13. If the boiler is working, temperature control is achieved using the boiler output; control is similar to compressor control in

HEATING mode.

BOILER IN HEATING MODE:.

Temperature control in heating is achieved using the boiler output, and is similar to compressor control in heat.ing mode; The compressor and the external fan are turned off.

The boiler is turned off if:

• in cooling mode

• on stand-by or OFF

• there is a boiler shutdown alarm (refer to table of alarms)

Temp (IA1/IA2/IA3)

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9 FUNCTIONS

9.1 Recording hours of operation

The device stores the number of hours of operation of the following in permanent memory:

• hydraulic pump

• compressors

It is precise to within one minute. Hours of operation may be displayed by entering the appropriate menu with the label Ohr (refer to menu structure). The whole value is displayed if it is less than 999 hours; if it exceeds this value, the hundreds of hours will be shown and the decimal point will appear: For example, 1234 hours will be displayed as follows:

To set the number of hours to zero, hold the DOWN key (refer to keys) down for two seconds while displaying the number of hours of operation.

Diagram

35.48

In the event of a power failure, the latest fraction of an hour recorded is set to 0, so that duration is rounded down

9.2 Defrosting

The defrost function is active in heating mode only. It is used to prevent ice formation on the surface of the external exchanger, which can occur in locations with low temperature and high humidity. It will considerably reduce the machine’s thermodynamic performance, creating a risk of damage to the machine.

Defrosting is enabled if:

• it is enabled by the parameter (Pa d01= 1)

• there is at least one condensation probe (Pa H07, for input AI3= 1 or 2, or Pa H08, for input AI4= 1)

• the reversing valve is present

Defrosting may be controlled on the basis of temperature or pressure, depending on how the machine is configured in Pa

H49.

Defrost start and stop commands are given on the basis of condensation probe readings and parameter settings, as

described below:

9.2.1 Defrost start

• If condensation temperature/pressure drops below Pa d02 (Defrost start temperature) and the compressor is ON, the response counter starts (Pa d03, defrost response time).

• When duration Pa d03 has expired, the instrument begins defrosting.

• At this point, if Pa d06 (compressor…valve delay time) = 0, the compressor will stay on. If not, the control

illustrated in the diagram below will be applied:

COMPR

This delay prevents liquid from flowing back into the compressor.

OFF

Pa d06

SD: defrost start COMPR: compressor RV: reversing valve Pa d06: compressor/valve delay time

Pa d06

Diagram

If the machine is configured with 2 compressors, both compressors (steps) will be on during defrosting. This will not be the case if a thermal switch alarm has been given for one of the compressors. Compressor safety times are ignored during the defrost cycle.

Start defrosting and end defrosting pressure (or temperature) values are determined by:

• defrost start: parameter Pa d02

• defrost end: parameter Pa d04

this only applies if parameter Pa H49= 3 or 2. If Pa H49= 1 (temperature-based operation), temperature values are determined by:

• Pa d08, start defrost

• Pa d09, stop defrost.

If Pa H49= 0, defrosting is not permitted (probe AI3 absent).

9.2.2 Defrost end

Defrost will end if:

• temperature/pressure rises above Pa d04 (defrost end temperature/pressure).

• duration of defrosting reaches Pa d05 (max defrost time)

at the end of defrosting, if drip time Pa d07= 0, the compressor will stay on; if not, the control illustrated in the figure will be applied:

Decalibrating

defrost start

setpoint according

to T ext

OFF

Pa d07

COMPR

FD: defrost end COMPR: compressor RV: reversing valve

Pa d07: drip time

9.2.3 Counter mode

• The defrost interval counter is interrupted when temperature/pressure rises above Pa d02 (defrost start temperature/pressure) or the compressor is turned off.

• The counter is set to zero after one of the following events: defrost cycle performed; power off; change in operating mode.

• The counter is also set to zero when the temperature/pressure rises above Pa d04 (defrost end temperature/pressure).

9.2.4 Start defrost temperature compensation

In dry and cool climates, the start defrost temperature is not corresponding to the effective icing temperature of the battery. The following control allows to linearly compensate the start defrost temperature/pressure, by adding negative or positive values depending on the outdoor temperature. Fan control will be on if:

• Activation parameter Pa H31 = 1

• Probe AI4 is configured as an outdoor temperature probe (Pa H08= 3)

Control parameters:

• Pa d11 = compensation offset for temperature/pressure defrosting

• Pa d12 = compensation set point for temperature/pressure defrosting

• Pa d13 = compensation delta for temperature/pressure defrosting

Pa d12

Pa d11 > 0

Pa d12

Temp

Pa d13 < 0

Pa d13 > 0

Pa d11 < 0

Temp

ECH 200 BD

Pa d13 < 0

Pa d13 > 0

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Temp: temperature

9.3 Power failure

In the event of a power failure, when the power is restored the control will return to the status it had before the power went out. If defrosting is underway, it will be cancelled. All timing in progress when the power goes out will be cancelled and started again.

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Alarms

Alarm events per

hour

10 DIAGNOSTICS

“Ech 200” can perform full systems diagnostics and signal a series of alarms.

Alarm trigger and reset modes are set using parameters Pa A01 – Pa A26.

For some alarms the signal will not be given for a certain amount of time, determined by a parameter. For some alarms the number of alarm events is counted: if the number of alarm events in the past hour exceeds a certain threshold set by a parameter, the alarm will switch from automatic to manual reset.

Alarms are sampled every 225 seconds; Example: if the number of events/hour is set to 3, the duration of an alarm must fall between 2*225 seconds and 3*225

seconds for the alarm to be switched from automatic to manual reset.

A M

123

Alarm

Sampling

225 s 225 s 225 s 225 s

Time

A: Automatic reset M: Manual reset

Alarm: alarm

Sampling: alarm sampling Time: time

If an alarm is triggered more than once within one sampling period (225 seconds), only one alarm will be counted.

Alarms with manual reset are reset by pressing the ON-OFF button and releasing.

Manual reset shuts down corresponding loads and requires an operator to intervene (reset the alarm using the ON-OFF

control).

Manual reset alarms are used mainly to identify problems which could result in damage to the system.

10.1 List of alarms

When an alarm is triggered, two things occur:

• The corresponding loads are shut down

• The alarm appears on the keyboard display

The alarm message consists of a code with the format “Enn” (where nn is a 2-digit number identifying the type of alarm, such as: E00, E25, E39….). All possible alarms are listed in the table below, along with their codes and the corresponding loads that will be shut down:

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Table of alarms

E00 Remote Off Triggered by the

E01 High pressure

(digital)

E02 Low pressure

(digital)

E03 Thermal switch

protection compressor 1

E04 Thermal switch

protection condenser fan

E05 Anti-freeze Active if analogue

digital input configured as “Remote ON-OFF ” (refer to digital

inputs)

Triggered by digital input ID1 (refer to

digital inputs)

Triggered by digital input ID2 (refer to

digital inputs);

Triggered by the digital input configured as “Compressor 1 thermal switch” (refer to digital inputs);

Triggered by the digital input configured as “Fan thermal switch” (refer to digital inputs);

probe AI2 (refer to

analogue inputs) is

configured as an antifreeze probe (Pa H06 = 1); Triggered when probe AI2 detects a value below Pa A11;

BY PASS RESET

Automatically

timer Pa A01

after a

compressor is

turned on or

the 4-way valve

(reversing valve)

is reversed.

Inactive during

defrosting if Pa

24=0.

timer Pa A07

after

compressor is

turned on.

timer Pa A10

after Ech 200 is turned on using the On-OFF key

(refer to

keyboard) or by

a digital ON-

OFF input (refer

to digital

inputs).

reset unless

alarm events per

hour reaches

the value of

parameter Pa

A02, after which

manually reset;

Automatically

reset unless alarm events per hour reaches

the value of parameter Pa

A08, after which

manually reset;

reset unless

alarm events per

hour reaches

the value of

parameter Pa

A09, after which

manually reset;

Goes off if AI2

detects a value

greater than Pa

A11 + Pa A12;

Automatically

reset unless

alarm events per

hour reaches

the value of

parameter Pa

13, after which

reset

COMPRESSOR 1 COMPRESSOR 2 EXTERNAL

OFF OFF OFF OFF OFF OFF OFF

OFF OFF Always manually

OFF OFF OFF OFF Inactive during

OFF Inactive during

OFF OFF OFF OFF Automatically

OFF OFF OFF Inactive during

FAN

BLOCCO UTENZE CODE SIGNAL DESCRIPTION

INTERNAL

FAN

PUMP ELECTRICAL

HEATER 1

ELECTRICAL

HEATER 2

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COMPRESSOR 1 COMPRESSOR 2 EXTERNAL

BLOCCO UTENZE CODE SIGNAL DESCRIPTION

FAN

INTERNAL

FAN

PUMP ELECTRICAL

HEATER 1

ELECTRICAL

HEATER 2

BY PASS RESET

manually reset;

E06 Probe AI2 fault Triggered if probe

OFF OFF OFF OFF OFF OFF OFF AI2, configured as an analogue input, shorts or is cut off or probe limits are exceeded (-50°C.. 100°C).

E07 Probe AI3 fault Triggered if probe

OFF OFF OFF OFF OFF OFF OFF AI3, configured as an analogue input, shorts or is cut off or probe limits are exceeded (-50°C.. 100°C).

E13 Thermal switch

protection compressor 2

Triggered by the digital input configured as “Compressor 2 thermal switch” (refer to digital inputs);

OFF Inactive during

timer Pa A07

after

compressor is

turned on.

Automatically

reset unless

alarm events per

hour reaches

the value of

parameter Pa

A08, after which

manually reset;

E40 Probe AI1 fault Triggered if probe

OFF OFF OFF OFF OFF OFF OFF AI1, configured as an analogue input, shorts or is cut off or probe limits are exceeded (-50°C..

E41 Flow switch Triggered if the

100°C).

digital input configured as “flow switch” (refer to

digital inputs)

remains active for an amount of time equal to Pa A04;

OFF OFF OFF OFF

Inactive during

timer Pa A03

after pump

(hydraulic

pump) is turned

Goes off if the

digital input

configured as

“flow switch”

(refer to digital

inputs) remains

inactive for an

amount of time

equal to Pa A05;

Automatically

reset unless

alarm events per

hour reaches

the value of

parameter Pa

A06, after which

manually reset;

E42 Probe AI4 fault Triggered if probe OFF OFF OFF OFF OFF OFF OFF

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COMPRESSOR 1 COMPRESSOR 2 EXTERNAL

AI4, configured as an analogue input, shorts or is cut off or probe limits are exceeded (-50°C.. 100°C).

E43 Anti-freeze alarm

E45 Configuration

E46 Over-temperature Triggered if probe

Only if manually reset

Outputs defined as capacity steps will be off if there is an alarm for the compressor to which they belong.

(water-water machine with gas reversal)

error

Active if probe AI3 is configured as an anitfreeze probe for water-water machines with gas reversal (refer to analogue

inputs)

Triggered if probe AI3 detects a value below Pa A11

If AI1 is configured as

a request for heating

digital input and AI2

as a request for

cooling input (refer

to analogue inputs),

the alarm will be

triggered if both inputs are active.

AI1 (refer to

analogue inputs) has

a value over Pa A25 for an amount of time in excess of Pa

A26;

OFF OFF Goes off if

OFF OFF OFF OFF OFF OFF OFF

OFF OFF

BLOCCO UTENZE CODE SIGNAL DESCRIPTION

FAN

INTERNAL

FAN

PUMP ELECTRICAL

HEATER 1

ELECTRICAL

HEATER 2

BY PASS RESET

Automatically

temperature

detected by AI3

exceeds Pa A11

+ Pa A12.

reset unless

alarm events per

hour reaches

the value of

parameter Pa

A13, after which

manually reset;

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Digital alarms

Analogue alarms

The tables below list alarms by type (digital or analogue).

10.1.1 TABLE OF DIGITAL ALARMS:

Alarm name Bypass trigger event Bypass time Trigger

High pressure alarm None absent absent absent Manual reset Low pressure alarm A compressor coming

Flow switch alarm Pump coming on Pa A03 Pa A04 Pa A05 Pa A06 Thermal switch compressor 1.2 Thermal switch fan None absent absent absent Pa A13

10.1.2 TABLE OF ANALOGUE ALARMS:

Alarm name Event Time.

Anti-freeze alarm On Off, input

Low condensation pressure/temperature

alarm

High condensation pressure/temperature

alarm

Over-temperature

alarm

External anti-freeze

alarm

on in the circuit or reversal of 4-way valve

Compressor coming on

in heating

mode, remote

on off Compressor turned on or reversal of 4way valve None absent Pa A14 Pa A15

None Trigger

None None Pa A11 Pa A12

Pa A01 absent absent Pa A02

Pa A07 absent absent Pa A08

Bypass

Pa A10 Pa A11 Pa A12

Par A16 Pa A17 Pa A18

duration must exceed

Pa A26

Trigger set

point

Pa A25 Pa A12

duration

Hystere sis

positive

negativ e

positive

Deactivation duration

N. alarm events/hour

Pa A13 AI2 if configuration

Pa A19 Probe configured for

Manual reset Probe configured for

Automatic

reset

Pa A13 AI3 if Pa H07= 4

N. alarm events/hour

Regulation probe

parameter Pa H06 = 1, otherwise alarm is inactive

condensation control

AI1

Pa G01

Pa G02

Pa H01

Pa H02

Pa H03

Pa H04

Pa H05

Pa H06

Pa H07

Pa H08

Pa H09

Pa H10 Pa H11 Pa H12 Pa H13 Pa H14

Pa H15 Pa H16 Pa H17

Pa H18 Pa H19 Pa H20

11 PARAMETERS

Parameters make the ”Ech 200” a fully configurable device.

They may be modified through:

• instrument keyboard

• copy card

• personal computer (with a suitable connection and “Param manager” software)

11.1 Description of parameters

We will now look at parameters in detail, divided by category.

11.1.1 Configuration parameters

Determine the features of the machine. If one or more parameters in this category are modified, the controller must be switched off after the modification and switched on again to ensure correct operation.

Values marked with a (*) are valid only for Ech 2xxB

“Cooling” set point

Allows the set point to be set on “cooling” mode.

“Heating” set point

Allows the set point to be set on “heating” mode

Maximum set point during “heating”

Upper limit on set point in “heating” mode

Minimum set point during “heating”

Lower limit on set point in “heating” mode

Maximum set point during “cooling”

Upper limit on set point in “cooling” mode

Minimum set point during cooling

Lower limit on set point in “cooling” mode

AI1 Configuration

Used to configure analogue input Al1

• 0= No probe

• 1= Inlet water/air analogue input

• 2= Heating request digital input

• 3= Regulation algorithm request digital input

• 4= Differential NTC input

• 5= On remote keyboard (*)

AI2 Configuration

• 0= No probe

• 1= Outlet water/antifreeze/inlet air analogue input

• 2= Cooling request digital input

• 3= Anti-freeze alarm digital input

AI3 Configuration

• 0= No probe

• 1= Condensation control analogue input

• 2= 4...20 mA condensation input

• 3= 4...20 mA dynamic set point input

• 4= Antifreeze analogue input for water-water machines with gas reversal

• 5= Regulation algorithm input in “heating” mode for water-water machines with manual reversal

AI4 Configuration

• 0= No probe

• 1= Condensation control NTC input

• 2= Multifunctional digital input

• 3= Outdoor temperature NTC input

• 4= Antifreeze analogue input for water-water machines with gas reversal

Bottom of scale pressure value

Maximum inlet value; determines the value corresponding to a current of 20 mA

Polarity of digital input ID1 Polarity of digital input ID2 Polarity of digital input ID3 Polarity of digital input ID4 Polarity of digital input ID5

• 0= Active when contact closed

• 1= Active when contact open

Polarity of analogue input Al1 Polarity of analogue input Al2 Polarity of analogue input Al4

If configured as digital inputs:

• 0= Active when contact closed

• 1= Active when contact open

Configuration of digital input ID3 Configuration of digital input ID4 Configuration of digital input ID5

• 0= Compressor 1 thermal switch

• 1= Fan thermal switch

• 2= Flow switch

• 3= Remote Heat/Cool

• 4= Remote ON-OFF

Pa H21

Pa H22

Pa H23

Pa H24

Pa H25

Pa H26

Pa H27

Pa H28

Pa H29

Pa H30

Pa H31

Pa H32

Pa H33

Pa H34

Pa H35

Pa H36

Pa H37

Pa H38

Pa H39 Pa H40 Pa H42

Pa H41

Pa H43

Pa H44 Pa H45

Pa H46

Pa H47

Pa H48

• 5= Compressor 2 thermal switch

• 6= Request for second compressor (step)

Configuration of AI4 if configured as a digital input (Pa H08=2)

• 0= Compressor thermal switch

• 1= Fan thermal switch

• 2= Flow switch

• 3= Remote Heat/Cool

• 4= Remote ON-OFF

• 5= Compressor 2 thermal switch

• 6= Request for second compressor (step)

Configuration of output NO2

• 0= Pump

• 1= Internal fan step 1

Configuration of output relay NO3

• 0= Reversal

• 1= Internal fan step 3

• 2= second compressor (step)

Configuration of output relay NO4

• 0= Anti-freeze electrical heaters

• 1= Internal fan step 2

• 2= Boiler

Optional analogue output configuration

• 0= open Collector output for second compressor

• 1= fan speed 4-20 mA output

• 2= fan speed 0-10 V output

Configuration of serial protocol (not used)

• 0= Standard

• 1= INVENSYS

Selection of operating mode

May be used to select which input determines operation in Heating/Cooling mode

• 0= Selection from keyboard

• 1= Selection from digital input

• 2= Selection from analogue input (probe Al4)

Presence of heat pumpt

• 0= Heat pump absent

• 1= Heat pump present

Heating mode set point

If mode selecton from analogue input is enabled, this is the value of Al4 below which the control will switch to “heating” mode

Mode selection differential

If mode selection from analogue input is enabled, this is the temperature differential for switching to “cooling” mode

Enable dynamic set point

Enables the function

• 0= Dynamic set point disabled

• 1= Dynamic set point enabled

Dynamic set point offset in

The maximum value that may be added to the set point in “cooling” mode

Dynamic set point offset in heating mode

The maximum value that may be added to the set point in “heating” mode

Outdoor temperature dynamic set point in cooling mode

The temperature above which the set point offset is zero in cooling mode.

Outdoor temperature dynamic set point in heating mode

The temperature above which the set point offset is zero in heating mode.

Outdoor temperature dynamic set point differential in cooling mode

May be used to set the differential for the outdoor temperature below which the maximum set point offset applies

Outdoor temperature dynamic set point differential in heating mode May be used to set the differential for the outdoor temperature above which the maximum offset applies.

Reversing valve polarity

• relay ON in cool

• relay ON in heat

Offset AI1, Offset AI2, Offset AI4

These parameters may be used to compensate the error that may occur between the temperature reading and the actual temperature or pressure.

Offset AI3

This parameter may be used to compensate the error that may occur between the temperature or pressure reading and the actual temperature or pressure.

mains frequency

• 0= mains frequency 50 Hz

• 1= mains frequency 60 Hz

Family serial address, Device serial address

May be used to select serial address. Both normally 0.

User password

May be used to enter a parameter for access to level two parameters.

Copy card write password

The password that must be entered to copy parameters to the copy card.

Number of compressors per circuit

• 1= 1 compressor

cooling mode

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Pa H49

Pa H50

Pa H51

Pa H52

Pa H53

Pa H54

Pa H55

Pa H56

Pa H57

• 2= 2 compressors (or 2 steps)

Enable pressure / temperature-based operation

• 0= parameters Pa H07=0 (probe Al3 absent) and Pa F01 = 3 (functioning in response to request from compressor) are forced.

• 1= temperature-based operation; parameters Pa H07,Pa F01 are forced to: Pa H07= 1 (probe Al3 temperature),

Pa F01= 3 (functioning in response to request from compressor).

• 2= pressure-based operation; parameters Pa H07, Pa F01 are forced to: Pa H07= 2 (probe ST3 pressure), F01= 0 (proportional functioning).

• 3= no constraints are set on parameters

Compressor on sequence

• 0= compressors come on on the basis of number of hours of operation (balancing hours of operation)

• 1= compressor 1 is turned on first, followed by compressor (or capacity step) 2 (unvaried sequence).

Compressor 2 or capacity step polarity

• 0= relay ON if compressor 2/capacity step ON

• 1= relay ON if compressor 2/ capacity step OFF

selection of degrees °C or °F

• 0= degrees °C

• 1= degrees °F

SET display for air’/air macchine

In order to facilitate the user interface in the air/air version, the set associated with the selected mode is normally displayed by setting th parameter PS H53

Customer Code 1

A number between 0 and 999 that the user can assign for internal use

Customer Code 2

A number between 0 and 999 that the user can assign for internal use

Polarity of relay alarm

• 0 = output is active (closed contact) when an alarm is active and when the machine is switched off.

• 1 = in the same conditions, the contact is open

Enable relay alarm in off position

• 0 =

• 1 = alarm output enabled in OFF or standby

alarm output not enabled in OFF or standby

Pa C01

Pa C02

Pa C03

Pa C04

Pa C05

Pa C06

Pa C07

Pa C08

Pa C09

Pa C10

Pa C11

Pa C12 Pa C13

Pa F01

Pa F02

Pa F03

Pa F04

Pa F05

Pa F06

11.1.2 Compressor parameters (CP)

OFF-ON safety time

The minimum amount of time that must pass between turning off the compressor and turning it on again. Expressed in tens of seconds.

ON-ON safety time

The minimum amount of time that must pass between turning the compressor on and turning it on again. Expressed in tens of seconds.

Cooling regulation algorithm hysteresis

May be used to select intervention differential in cooling mode.

Heating regulation algorithm hysteresis

May be used to select intervention differential in heating mode.

Regulation algorithm step intervention differential

May be used to set a temperature differential in relation to the set point beyond which the second step is activated.

Compressor 1 - compressor 2 (step) on interval

May be used to set a delay between turning on of two steps.

Compressor 1 - compressor 2 (step) off interval

May be used to set a delay between turning off of two steps.

Enables the Adaptive function.

0=disabled function; 1=enabled function;

Set block in Cooling mode

Enables to configure a set point that disables the Adaptive function in Cooling mode.

Set block in Heating mode

Enables to configure a set point that disables the Adaptive function in Heating mode.

Offset constant

Constant value of Adaptive algorithm

Reset time for increases

Function proportional constant

Value used to multiply the difference between the minimum and actual running time.

11.1.3 Fan control parameters (FAN)

Fan output configuration

• 0: proportional condensation control TK output

• 1: ON-OFF TK output

• 2: anti-freeze electrical heater output for water-water machines with gas reversal

• 3: TK ON-OFF output on compressor

Fan pick-up time

Time for which fan runs at maximum speed after starting up. Expressed in seconds/10.

Fan phase shift

May be used to adapt output to various types of fans.

Impulse duration of triac on

May be used to vary the length of the impulse from the triac.

Functioning in response to compressor request

• 0: if compressor is off, fan is off

• 1: condensation control independent of compressor

Minimum speed during cooling

ECH 200 BD

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Pa F07

Pa F08

Pa F09

Pa F10

Pa F11

Pa F12

Pa F13

Pa F14

Pa F15

Pa F16

Pa F17

Pa F18

Pa F19

Pa F20

Pa F21

Pa F22

Pa F23 Pa F24 Pa F25

Minimum value of proportional fan control during cooling. Expressed as a percentage of the maximum permitted voltage, from 0 to 100%,.

Maximum silent speed during cooling

Maximum value of proportional fan control during cooling. Expressed as a percentage of the maximum permitted voltage, from 0 to 100%,.

Minimum fan speed temperature/pressure set point during cooling

Condensation pressure/temperature value below which the fan runs at minimum cooling speed.

Proportional band during cooling

Temperature/pressure differential corresponding to change from minimum to silent maximum fan speed during cooling.

Cut-off differential

Condensation temperature/pressure differential within which fan continues to run at low speed.

Cut-off hysteresis.

Condensation temperature/pressure differential for fan cut-off.

Cut-off bypass time

Determines the amount of time after fan start-up during which compressor cut-off is excluded. Expressed in seconds.

Maximum speed during cooling

May be used to set a speed step corresponding to a given temperature/pressure value during cooling.

Maximum fan speed temperature/pressure set point in cooling mode

Condensation temperature/pressure value corresponding to the fan speed set for par. F13.

Minimum speed during heating

Minimum proportional fan control value in heating mode. Expressed as a percentage of the maximum permitted voltage, from 0 to 100%,.

Maximum silent speed during heating

Maximum value of proportional fan control during heating. Expressed as a percentage of the maximum permitted voltage, from 0 to 100%,.

Minimum fan speed temperature/pressure set point during heating

Condensation temperature/pressure value above which the fan operates at minimum speed in heating mode.

Proportional band during heating

Temperature/pressure differential corresponding to a change from minimum to maximum silent fan speed during heating.

Maximum speed during heating

May be used to set a speed step corresponding to a given temperature/pressure value during heating.

Maximum fan speed temperature/pressure set point during heating

Condensation temperature/pressure value corresponding to the fan speed set for par. F19.

Internal fan step differential

May be used to set a temperature differential between one step of fan control and the next for internal fan control.

Internal fan step hysteresis

May be used to set a hysteresis for each fan control step cut-off.

Not used Not used Preventilation in cooling mode

May be used to set a preventilation time in cooling mode before the compressor is turned on.

Pa A01

Pa A02

Pa A03

Pa A04

Pa A05

Pa A06

Pa A07

Pa A08

Pa A09

Pa A10

Pa A11

Pa A12

Pa A13

11.1.4 Alarm parameters (ALL)

Low pressure pressure switch bypass time.

Determines the delay between starting up the compressor and starting up the low pressure digital alarm diagnostics. Expressed in seconds.

Low pressure alarm events per hour

Used to set the number of low pressure digital alarm events per hour beyond which the system will switch from automatic

reset to manual reset.

Bypass flow switch after pump on

Determines the delay between activation of the hydraulic pump and activation of the flow switch alarm diagnostics. Expressed in seconds.

Duration of active flow switch input

May be used to set the amount of time for which the flow switch digital input must remain active to generate a flow switch alarm. The timer starts after the flow switch by-pass time. Expressed in seconds.

Duration of inactive flow switch input

May be used to set the time for which the flow switch digital input must remain inactive to be included in the corresponding alarm. Expressed in seconds.

Number of flow switch alarms/hour

May be used to set the number of flow switch digital alarms per hour after which the alarm is switched from automatic to

manual reset. When this occurs, the hydraulic pump is deactivated.

Compressor thermal switch bypass following compressor on

Determines the delay between compressor activation and activation of the compressor thermal switch digital diagnostics

alarm. Expressed in seconds.

Compressor 1/2 thermal switch alarm events per hour

May be used to set a number of compressor thermal switch alarm events per hour beyond which the alarm is switched from automatic to manual reset..

Fan thermal switch alarm events per hour

May be used to set a number of fan thermal switch alarm events per hour beyond which the alarm is switched from automatic to manual reset.

Anti-freeze alarm by-pass

Determines the delay between turning on the machine and activation of the anti-freeze alarm; it is enabled only in the

heating mode. Expressed in minutes.

Anti-freeze

May be used to set the temperature below which the anti-freeze alarm is triggered.

Anti-freeze alarm differential

May be used to set the anti-freeze alarm differential.

Anti-freeze alarm events per hour

May be used to set a number of anti-freeze alarm events per hour beyond which the alarm is switched from automatic to

manual reset.

alarm set point

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Pa A14 Pa A15 Pa A16 Pa A17 Pa A18 Pa A19 Pa A20

Pa A21

Pa A22

Pa A23

Pa A24

Pa A25

Pa A26

Pa P01

Pa P02

Pa P03

Not used Not used Not used Not used Not used Not used Machine out of coolant differential

If the difference between the absolute value of Al2 and is lower than this parameter when in heating and higher when in

cooling, the machine out of coolant timer will start.

Machine out of coolant bypass

Determines the delay between the turning on of the first compressor in the corresponding cooling circuit and activation of the machine out of coolant alarm diagnostics. Expressed in minutes.

Machine out of coolant duration

Determines the amount of time beyond which the machine out of coolant alarm will be triggered.

Machine out of coolant alarm activation

Enables machine out of coolant alarm

Enable low pressure alarm during defrosting

Enables the minimum alarm during defrosting. If 0, the low pressure alarm is disabled during defrosting.

Over-temperature set point

Temperature value Al1 above which the over-temperature alarm E46 is triggered.

Over-temperature ON duration

Determines the duratoni of the condition Al1>A25 beyond which alarm E46 is triggered. Pump parameters (PUP)

Pump operating mode

May be used to determine pump operating mode:

• 0=continuous operation

• 1=operation in response to a request from the regulation algorithm

• 2=cyclic operation

Pump or fan operating mode

May be used to determine pump or fan operating mode:

• 0=(pump) continuous operation | (fan) the fan is never switched off

• 1= (pump) operation in response to a request from regulation algorithm | (fan) the fan is turned off with the

Delay between pump ON and compressor ON

May be used to set a delay between starting a pump and starting a compressor. Expressed in seconds.

Delay between compressor OFF and pump OFF

May be used to set a delay between turning off a compressor and turning off a pump. Expressed in seconds.

compressor

Pa r01

Pa r02

Pa r03

Pa r04

Pa r05

Pa r06

Pa r07

Pa r08

Pa r09

Pa r10

Pa r11

Pa r12

Pa r13

11.1.5 Anti-freeze/boiler parameters (FRO)

Configuration of electrical heaters in defrost mode

Determines electrical heater operation during defrosting

• 0=come on only in response to a request from the regulation algorithm

• 1=always on during defrosting

Configuration of electrical heaters on in cooling mode

Determines electrical heater operation in cooling mode

•

0=off during cooling

• 1=on during cooling (in response to anti-freeze electrical heater regulation algorithm)

Configuration of electrical heaters on in heating mode

Determines electrical heater operation in heating mode

• 0=off during heating

• 1= on during heating (in response to anti-freeze electrical heater regulation algorithm)

Configuration of anti-freeze electrical heater control probe in heating mode

Determines electrical heater control probe in heating mode

• 0= Controls on the basis of probe Al1

• 1= Controls on the basis of probe Al2

Configuration of anti-freeze electrical heater control probe in cooling mode

Determines electrical heater control probe in cooling mode

• 0= Controls on the basis of probe Al1

• 1= Controls on the basis of probe Al2

Configuration of electrical heaters when OFF or on stand-by

Determines the status of electrical heaters when the instrument is OFF or on stand-by

• 0=Always off when OFF or on stand-by

• 1=On when OFF or on stand-by (in response to anti-freeze electrical heater control algorithm)

Set point of anti-freeze electrical heaters in heating mode

Temperature value below which anti-freeze electrical heaters come on in heating mode.

Set point of anti-freeze electrical heaters in cooling mode

Temperature value below which anti-freeze electrical heaters come on in cooling mode.

Maximum set point of anti-freeze electrical heaters

Determines the maximum setting of the anti-freeze electrical heater set point.

Minimum set point of anti-freeze electrical heaters

Determines the minimumsetting of the anti-freeze electrcial heater set points.

Anti-freeze heater hysteresis

Anti-freeze electrical heater control algorithm hysteresis.

Set point of external anti-freeze electrical heaters

Temperature below which external anti-freeze electrical heaters come on.

Outdoor temperature set point

The temperature below which the boiler is turned on and the heat pump is turned off.

for boiler on

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Pa r14

Pa r15

Pa d01

Pa d02

Pa d03

Pa d04

Pa d05

Pa d06

Pa d07

Pa d08

Pa d09

Pa d10

Pa d11

Pa d12

Pa d13

Boiler off differential

Boiler off differential. If outdoor temperature exceeds Pa r14+Pa r13, the boiler will be turned off and the heat pump will

be turned on.

Supplementary electrical heater control

If this parameter =1 the electrical heaters have the double function of anti-freeze electrical heaters and supplementary heaters Otherwise (Pa r15=0) the electrical heaters have only the anti-freeze function

11.1.6 Defrost parameters (DFR)

Defrost enabled

0= defrost function enabled 1= defrost function enabled

Defrost start temperature/pressure

Temperature/pressure below which the defrost cycle is started.

Defrost interval (response time)

Duration for which probe remains below defrost start temperature/pressure. Expressed in minutes.

Defrost end temperature/pressure

Temperature/pressure above which defrost ends.

Maximum defrost time (time-out)

Maximum duration of defrosting. Expressed in minutes.

Compressor-reversing valve wait time (anti-bleeding)

Wait time between compressor going off and reversal of the 4-way valve at the beginning of the defrost cycle.

Drip time

Wait time at the end of the defrost cycle between turning off the compressor and reversing the 4-way valve.

Temperature at which defrost starts if Pa H49= 1

Temperature below which the defrost cycle is started.

Temperature at which defrost ends if Pa H49=1

Temperature above which the defrost cycle is ended.

Enable defrost compensation

See compensation temperature at defrost start

Defrost temperature/pressure compensation offset See compensation temperature at defrost start Defrost temperature/pressure compensation set point

See compensation temperature at defrost start

Defrost temperature/pressure compensation delta

See compensation temperature at defrost start

Configuration

parameters

11.2 Table of parameters

All ”Ech 200” parameters are listed in the table below.

The parameters in gray are valid only for the models Ech 2xxB

CONFIGURATION PARAMETERS*

Par. Description Limits Unit of

measurement

Pa G01 “Cooling” set point Pa G02 “Heating” set point Pa H01 Maximum set point during heating Pa H02 ÷ 90.0 °C Pa H02 Minimum set point during heating -40.0 ÷ Pa H01 °C Pa H03 Maximum set point during cooling Pa H04 ÷ 90.0 °C Pa H04 Minimum set point during cooling -40.0 ÷ Pa H03 °C Pa H05 AI1 Configuration 0 ÷ 5 Num Pa H06 AI2 Configuration 0 ÷ 3 Num Pa H07 AI3 Configuration 0 ÷ 5 Num Pa H08 AI4 Configuration 0 ÷ 4 Num Pa H09 Bottom of scale pressure value 0-350 kPa*10 Pa H10 Polarity ID1 0 ÷ 1 Flag Pa H11 Polarity ID2 0 ÷ 1 Flag Pa H12 Polarity ID3 0 ÷ 1 Flag Pa H13 Polarity ID4 0 ÷ 1 Flag Pa H14 Polarity ID5 0 ÷ 1 Flag Pa H15 Polarity AI1 0 ÷ 1 Flag Pa H16 Polarity AI2 0 ÷ 1 Flag Pa H17 Polarity AI4 0 ÷ 1 Flag Pa H18 Configuration ID3 0 ÷ 6 Num Pa H19 Configuration ID4 0 ÷ 6 Num Pa H20 Configuration ID5 0 ÷ 6 Num Pa H21 Configuration Al4 if digital input 0 ÷ 6 Num Pa H22 Configuration relay 2 0 ÷ 1 Num Pa H23 Configuration relay 3 0 ÷ 2 Num Pa H24 Configuration relay 4 0 ÷ 2 Num Pa H25 Optional analogue output configuration 0 ÷ 2 Num Pa H26 Configuration of serial protocol (not used) 0 ÷ 1 Num Pa H27 Selection of operating mode 0 ÷ 2 Num

ECH 200 BD

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Table of

compressor

parameters (CP)

Table of

parameters: fan

control

parameters (FAN)

Pa H28 Presence of heat pumpt 0 ÷ 1 Flag Pa H29 Heating mode set point 0 ÷ 255 °C Pa H30 Mode selection differential 0 ÷ 25.5 °C Pa H31 Enable dynamic set point 0 ÷ 1 Flag Pa H32 Dynamic set point offset in cooling mode -12.7 ÷ 12.7 °C Pa H33 Dynamic set point offset in heating mode -12.7 ÷ 12.7 °C Pa H34 Outdoor temperature set point in cooling mode 0 ÷ 255 °C Pa H35 Outdoor temperature set point in heating mode 0 ÷ 255 °C Pa H36 Outdoor temp. dynamic set point differential in cooling -25.5 ÷ 25.5 °C Pa H37 Outdoor temp. dynamic set point differential in heating -25.5 ÷ 25.5 °C Pa H38 Reversing valve polarity 0 ÷ 1 Flag Pa H39 Offset AI1 -12.7 ÷ 12.7 °C Pa H40 Offset AI2 -12.7 ÷ 12.7 °C Pa H41 Offset AI3 -127 ÷ 127 °C/10 - kPa*10 Pa H42 Offset AI4 -12.7 ÷ 12.7 °C Pa H43 Mains frequency 0 ÷ 1 Flag Pa H44 Family serial address 0 ÷ 14 Num. Pa H45 Device serial address 0 ÷ 14 Num. Pa H46 User password 0 ÷ 255 Num. Pa H47 Copy card write password 0 ÷ 255 Num. Pa H48 Number of compressors per circuit 1 ÷ 2 Num. Pa H49 Enable pressure/temperature based operation 0÷3 Num. Pa H50 Compressor on sequence 0÷1 Num. Pa H51 Compressor 2 or capacity step polarity 0÷1 Num. Pa H52 Selection of degrees °C or °F 0÷1 Num. Pa H53 SET display for air’/air macchine 0÷1 Num. Pa H54 Customer Code 1 0÷999 Num. Pa H55 Customer Code 2 0÷999 Num. Pa H56 Polarity of relay alarm 0÷1 Num. Pa H57 Enable relay alarm in off position 0÷1 Num.

• If parameters in this category are modified, the controller must be turned off after the modification and turned on again to guarantee correct functioning.

COMPRESSOR PARAMETERS

Par. Description Limits Unit of

Pa C01 ON-OFF safety time 0 ÷ 255 Seconds*10 Pa C02 ON-ON safety time 0 ÷ 255 Seconds*10 Pa C03 Cooling regulation algorithm hysteresis 0 ÷ 25.5 °C Pa C04 Heating regulation algorithm hysteresis 0 ÷ 25.5 °C Pa C05 Regulation algorithm step intervention differential 0 ÷ 25.5 °C Pa C06 Compressor 1 – compressor 2 (step) on interval 0 ÷ 255 Seconds Pa C07 Compressor 1 – compressor 2 (step) off interval 0 ÷ 255 Seconds Pa C08 Start function on units without accumulation tank 0 ÷ 1 Flag Pa C09 Set block in Cooling mode 0 ÷ 255 °C Pa C10 Set block in Heating mode 0 ÷ 255 °C Pa C11 Offset constant 0 ÷ 25.5 °C Pa C12 Reset time for increases 0 ÷ 255 Seconds*10 Pa C13 Proportional Part Offset Coefficient 0 ÷ 25.5 °C/(10*sec)

FAN PARAMETES

Par. Description Limits Unit of

Pa F01 Fan output configuration 0 ÷ 3 Num. Pa F02 Fan pick-up time 0 ÷ 255 Seconds/10 Pa F03 Fan phase shift 0 ÷ 100 µs*200 Pa F04 Impulse duration of triac on 0 ÷ 255 µs*200

Pa F05 Functioning in response to compressor request 0 ÷ 1 Flag Pa F06 Minimum speed during cooling 0 ÷ 100 % Pa F07 Silent speed during cooling 0 ÷ 100 % Pa F08 Minimum fan speed temperature/pressure set point during

cooling Pa F09 Prop. band during cooling 0 ÷ 255 °C/10–kPa*10 Pa F10 Cut-off differential 0 ÷ 255 °C/10–kPa*10 Pa F11 Cut-off hysteresis 0 ÷ 255 °C/10–kPa*10 Pa F12 Cut-off bypass time 0 ÷ 255 Seconds Pa F13 Maximum speed during cooling 0 ÷ 100 % Pa F14 Maximum fan speed temperature/pressure set point in

cooling mode Pa F15 Minimum speed during heating 0 ÷ 100 % Pa F16 Silent speed during heating 0 ÷ 100 % Pa F17 Minimum fan speed temperature/pressure set point during

heating Pa F18 Proportional band during heating 0 ÷ 255 °C/10–kPa*10 Pa F19 Maximum speed during heating 0 ÷ 100 %

-500 ÷ 800 °C/10–kPa*10

measurement

ECH 200 BD

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Table of

parameters: alarm

parameters (ALL)

Table of

parameters: pump

parameters (PUP)

Table of

parameters: Anti-

freeze/boiler

parameters (FRO)

Table of

parameters:

defrost

parameters (DFR)

Pa F20 Maximum fan speed temperature/pressure set point during

heating Pa F21 Internal fan step differential 0 ÷ 25.5 °C Pa F22 Internal fan step hysteresis 0 ÷ 25.5 °C Pa F23 Not used / / Pa F24 Not used / / Pa F25 Preventilation in cooling mode 0 ÷ 255 Seconds

ALARM PARAMETERS

Par. Description Limits Unit of

Pa A01 Low pressure pressure switch bypass time after comp. on 0 ÷ 255 Seconds Pa A02 Low pressure alarm events per hour 0 ÷ 255 Num Pa A03 Bypass flow switch after pump on 0 ÷ 255 Seconds Pa A04 Duration of active flow switch input 0 ÷ 255 Seconds Pa A05 Duration of inactive flow switch input 0 ÷ 255 Seconds Pa A06 Number of flow switch alarm events per hour 0 ÷ 255 Num Pa A07 Compressor thermal switch bypass following comp. on 0 ÷ 255 Seconds Pa A08 Compressor 1/2 thermal switch alarm events per hour 0 ÷ 255 Num Pa A09 Fan thermal switch alarm events per hour 0 ÷ 255 Num Pa A10 Anti-freeze alarm bypass after ON-OFF 0 ÷ 255 Minutes Pa A11 Anti-freeze alarm set point -127 ÷ 127 °C Pa A12 Anti-freeze alarm hysteresis 0 ÷ 25.5 °C Pa A13 Anti-freeze alarm events per hour 0 ÷ 255 Num Pa A14 Not used / / Pa A15 Not used / / Pa A16 Not used / / Pa A17 Not used / / Pa A18 Not used / / Pa A19 Not used / / Pa A20 Machine out of coolant differential 0 ÷ 255 °C Pa A21 Machine out of coolant bypass 0 ÷ 255 Minutes Pa A22 Machine out of coolant duration 0 ÷ 255 Minutes Pa A23 Machine out of coolant alarm activation 0 ÷ 1 Flag Pa A24 Enable low pressure alarm during defrosting 0 ÷ 1 Flag Pa A25 Over-temperature set point 0 ÷ 255 °C Pa A26 Over-temperature ON duration 0 - 255 Seconds*10

-500 ÷ 800 °C/10–kPa*10

measurement

PUMP PARAMETERS

Par. Description Limits Unit of

Pa P01 Pump operating mode 0 ÷ 1 Num. Pa P02 Delay between pump ON and compressor ON 0 ÷ 255 Seconds Pa P03 Delay between compressor OFF and pump OFF 0 ÷ 255 Seconds

measurement

ANTI-FREEZE/BOILER PARAMETERS

Par. Description Limits Unit of

Pa r01 Configuration of electrical heaters in defrost mode 0 ÷ 1 Flag Pa r02 Configuration of electrical heaters on in cooling mode 0 ÷ 1 Flag Pa r03 Configuration of electrical heaters on in heating mode 0 ÷ 1 Flag Pa r04 Configuration of anti-freeze electrical heater control probe

in heating mode

Pa r05 Configuration of anti-freeze electrical heater control probe

in cooling mode

Pa r06 Configuration of electrical heaters when OFF or on stand-by 0 ÷ 1 Flag Pa r07 Set point of anti-freeze electrical heaters in heating mode Pa r09÷Pa r10 °C Pa r08 Set point of anti-freeze electrical heaters in cooling mode Pa r09÷Pa r10 °C Pa r09 Maximum set point of anti-freeze electrical heaters Pa r10÷127 °C Pa r10 Minimum set point of anti-freeze electrical heaters -127÷Pa r09 °C Pa r11 Anti-freeze heater hysteresis 0 ÷ 25.5 °C Pa r12 Set point of external anti-freeze electrical heaters Pa r09÷Pa r10 °C Pa r13 Outdoor temperature set point for boiler on -127 ÷ 127 °C Pa r14 Outdoor temperature differential for boiler off 0 ÷ 25.5 °C Pa r15 Enable supplementary electrical heaters 0 ÷ 1 Flag

0 ÷ 1 Flag

measurement

DEFROST PARAMETERS

Par. Description Limits Unit of

Pa d01 Defrost enabled 0 ÷ 1 Flag Pa d02 Defrost start temperature/pressure -500 ÷ 800 °C/10 - kPa*10 Pa d03 Defrost interval (response time) 0 ÷ 255 Minutes Pa d04 Defrost end temperature/pressure -500 ÷ 800 °C/10 - kPa*10

measurement

ECH 200 BD

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Pa d05 Maximum defrost time 0 ÷ 255 Minutes Pa d06 Compressor-reversing valve wait time 0 ÷ 255 Seconds Pa d07 Drip time 0 ÷ 255 Seconds Pa d08 Temperature at which defrost starts if Pa H49= 1 -50.0 ÷ 80.0 °C/10 Pa d09 Temperature at which defrost ends if Pa H49= 1 -500 ÷ 80.0 °C/10 Pa d10 Enable defrost compensation 0 ÷ 1 Flag Pa d11 Defrost temperature/pressure compensation offset -255 ÷ 255 °C/10 - kPa*10 Pa d12 Defrost temperature/pressure compensation set point -127 ÷ 127 °C Pa d13 Defrost temperature/pressure compensation delta -25.5 ÷ 25.5 °C

ECH 200 BD

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Current

transformer

12 TECHNICAL FEATURES

12.1 Technical information

Tipical Min. Max. Power supply tension 12V~ 10V~ 14V~ Power supply frequency 50Hz/60Hz --- --Power 5VA --- --Isolation class 1 --- --Use environment temperature 25°C -10°C 60°C Use environment humidity (non-condensing) 30% 10% 90%

Stocking environment temperature 25°C -20°C 85°C Stocking environment humidity (non-condensing) 30% 10% 90%

12.2 Electromagnetic characteristic

Digital exits 120/240 V • n° 4 relais 2A ¼ hp 240V~; 1/8 hp 120V~

WARNING: The TOTAL current on relay must NOT exceed 8A

• 1 TRIAC 2 A

Exits 24 V~ • 1 TRIAC non optic insulation entry maximum 500 mA.

Analogue inputs • 3 temperature sensors, reading field -30°C ÷ 90°C;

• 1 configurable input: 4...20 mA transducer or temperature sensor, reading field -30°C ÷ 90°C;

Digital inputs • n° 5 Voltage-free digital inputs

Terminals and connectors • 1 quick coupling 9-ways connector high voltage AWG 16-28

• 1 quick coupling 16-ways connector low voltage pitch 4,2, AWG 16-

• 1 5-ways p2,5 connector remote control and foreign key scheduling, AWG 24-30

• 1 3-ways p2 3 connector remote keyboard or optional relay, AWG 22-30;

Display and led • 3 digit + sign;

• 5 red leds

Keys • 2 keys

Serials • n° 1 9600 serial

• n° 1 2400 serial (keyboard output)

Turn the power on to the instrument using an appropriate current transformer with the following features:

• Primary voltage: 230V~±10%; 110V~±10%

• Secondary voltage: 12V~

• Power supply frequency: 50Hz; 60Hz

• Power: 5VA;

12.3 Dimensions

• Dimensions: 76x34x58mm

• Container: PC+ABS plastic resin with V0 extinguishing classification

• Assembly: Panel , on 71x29mm hole

28mm

CH 210

invensys

70mm

76mm

12.4 Regulations

The product meets the following CEE Directives:

• 73/23/CEE Council directive and subsequent modifications

• 89/336/CEE Council directive and subsequent modifications

and meets the requirements of the following Armonised regulations

• LOW VOLTAGE: EN60730

• EMISSION : EN50081-1 (EN55022)

• IMMUNITY : EN50082-2 (IEC 1000-4-2/3/4/5)

on off

mode

:set

34mm

55mm

64mm

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13 USE OF THE DEVICE

13.1 Permitted use

This product is used to control single circuit chillers and heat pumps.

To ensure safety, the controller must be installed and operated in accordance with the instructions supplied, and access to high voltage components must be prevented under regular operating conditions. The device shall be properly protected against water and dust and shall be accessible by using a tool only. The device is suitable for incorporation in a household appliance and/or similar air conditioning device. According to the reference regulations, it is classified:

• In terms of construction, as an automatic electronic control device to be incorporated with independent assembly or integrated;

• In terms of automatic operating features, as a type 1 action control device, with reference to manufacturing tolerances and drifts;

• As a class 2 device in relation to protection against electrical shock;

• As a class A device in relation to software structure and class.

13.2 Forbidden use

Any use other than the permitted use is forbidden. Please note that relay contacts supplied are functional and are subject to fault (in that they are controlled by an electronic component and be shorted or remain open); protection devices recommended by product standards or suggested by common sense in response to evident safety requirements shall be implemented outside of the instrument.

14 RESPONSIBILITY AND RESIDUAL RISKS

Eliwell & Controlli srl. shall not be held liable for any damage incurred as a result of:

• installation/use other than those intended, and, in particular, failure to comply with the safety instructions specified by applicable regulations and/or provided in this document;

• use with equipment which does not provide adequate protection against electric shocks, water and dust under the effective conditions of installation;

• use with equipment which permits access to hazardous parts without the use of tools;

• installation/use with equipment which does not comply with current regulations and legislation.

15 DISCLAIMER

This manual and its contents remain the sole property of Eliwell & Controlli s.r.l. and shall not be reproduced or distributed without authorization. Although great care has been exercised in the preparation of this document, Eliwell &

Controlli s.r.l., its employees or its vendors, cannot accept any liability whatsoever connected with its use Eliwell & Controlli s.r.l. reserves the right to make any changes or improvements without prior notice.

16 EXAMPLES OF AIR CONDITIONING CIRCUITS

The following chapter reports the main air-conditioning diagrams in their standard configuration. Obviously the manufacturer can decide to set the system in customed way.

16.1 Air-water chiller 1 compressor

COND

ST a

TS a

TS b

COMP a

LPS aHPS a

SYMBOL ELEMENT CONNECTION

COND condenser EV evaporator AFR a primary circuit anti-freeze resistance NO4 HPS a high pressure switch ID1 LPS a low pressure switch ID2 TS a fan thermal switch ID4 TS b compressor thermal switch ID3 ST a secondary circuit anti-freeze probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a compressor NO1 WP a primary circuit water pump NO2 OCW outflowing cold water IW inflowing water

FS a

OCW

ST c

AFR a

ST b

WP a

ECH 200 BD

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16.2 Air-water chiller 2 compressor

COND

ST a

COMP a

COMP b

TS a

TS b

TS c

FS a

OCW

ST c

AFR a

ST b

WP a

LPS aHPS a

SYMBOL ELEMENT CONNECTION

COND condenser EV evaporator AFR a primary circuit anti-freeze resistance NO4 HPS a high pressure switch ID1 LPS a low pressure switch ID2 TS a fan thermal switch ID4 TS b compressor 1 thermal switch ID3 TS c compressor 2 thermal switch AI4 ST a secondary circuit anti-freeze probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a Compressor 1 NO1 COMP b Compressor 2 NO3 WP a primary circuit water pump NO2 OCW outflowing cold water IW inflowing water

(*)

With AI4 configured as digital input.

(*)

ECH 200 BD

61/76ECH 200 BD

/76

16.3 Water-water Chiller 1 compressor

HPS a LPS a

COMP a

TS a

WP a

OHW

ST a

AFR a

SYMBOL ELEMENT CONNECTION

COND condenser EV evaporator AFR a secondary circuit anti-freeze resistance NO5 (TK) AFR b primary circuit anti-freeze resistance NO4 HPS a high pressure switch ID1 LPS a low pressure switch ID2 TS a compressor thermal switch ID3 TS thermal switch ST a secondary circuit anti-freeze probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a compressor NO1 WP a primary circuit water pump NO2 IW inflowing water OCW outflowing cold water OHW outflowing hot water

COND EV

ST b

ST c

AFR b

FS a

OCW

ECH 200 BD

62/76

16.4 Water-water Chiller 2 compressor

COMP b

HPS a LPS a

COMP a

OHW

ST a

AFR a

SYMBOL ELEMENT CONNECTION

COND condenser EV evaporator AFR a secondary circuit anti-freeze resistance NO5 (TK) AFR b primary circuit anti-freeze resistance NO4 HPS a high pressure switch ID1 LPS a low pressure switch ID2 TS a compressor 1 thermal switch ID3 TS b compressor 2 thermal switch ID4 TS thermal switch ST a secondary circuit anti-freeze probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a compressor 1 NO1 COMP b compressor 2 NO3 WP a primary circuit water pump NO2 OCW outflowing cold water IW inflowing water OHW outflowing hot water

COND EV AFR b

TS b

TS a

ST b

ST c

WP a

FS a

OCW

ECH 200 BD

63/76

16.5 Air-water heat pump 1 compressor

ST a

TS a

FS a

OCW

ST c

COND

AFR a

ST b

WP a

TS b

COMP a

HPS a LPS a

SYMBOL ELEMENT CONNECTION

(*)

thermal switch ST a secondary circuit probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a compressor NO1 RV reversing valve NO3 WP a primary circuit water pump NO2 IW inflowing water OCW outflowing cold water

(*)

Interposing this digital input to the pump feeding is recommended. In case of thermal alarm, the flow switch will stop

the machine.

ECH 200 BD

64/76

16.6 Air-water heat pump 2 compressors

ST a

TS a

TS b

COMP a

TS c

HPS a LPS a

COMP b

ST c

COND

AFR a

ST b

FS a

OCW

WP a

SYMBOL ELEMENT CONNECTION

(*)

TS thermal switch ST a secondary circuit probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a compressor 1 NO1 COMP b compressor 2 EXP

(**)

RV reversing valve NO3 WP a primary circuit water pump NO2 IW inflowing water OCW outflowing cold water

(*)

With AI4 configured as digital input.

(**)

Connection on extension.

16.7 Water-water heat pump 1 compressor

COND

AFR a

ST b

WP a

ST a

OHW

TS a

COMP a

HPS a LPS a

SYMBOL ELEMENT CONNECTION

COND condenser EV evaporator AFR a secondary circuit anti-freeze resistance NO5 (TK) AFR b primary circuit anti-freeze resistance NO4 HPS a high pressure switch ID1 LPS a low pressure switch ID2 TS a compressor thermal switch ID3 TS thermal switch ST a secondary circuit probe AI3 ST b primary circuit inflowing water probe AI1 ST c primary circuit outflowing water probe AI2 FS a primary circuit flow switch ID5 COMP a compressor NO1 RV reversing valve NO3 WP a primary circuit water pump NO2 IW inflowing water OHW outflowing hot water OCW outflowing cold water

EV AFR b

ST c

OCW

FS a

16.8 Water-water heat pump 2 compressors

COND

AFR a

ST b

WP a

ST a

EV AFR b

OHW

ST c

TS a

COMP a

TS b

HPS a LPS a

COMP b

SYMBOL ELEMENT CONNECTION

(*)

(**)

RV reversing valve NO3 WP a primary circuit water pump NO2 IW inflowing water OHW outflowing hot water OCW outflowing cold water

(*)

With AI4 configured as digital input.

(**)

Connection on extension.

OCW

FS a

Logical OR

PRODUCT NAME PRODUCT CODE

FIRMWARE

CERTIFICATE

POWER SUPPLY

CUSTOMER REF.

DESTINATION

Scroll up

Stand-by

Reset

Reset alarm

Manual reset

Scroll down

BLIN

Average number

of hours

Loads

Set Point

Range

Hysteresis

Permanent

memory

Cut-of

Label

17 GLOSSARY

Multiple inputs with an OR relationship to one another are equivalent to a single input with the following status:

• active, if at least one input is active;

• Inactive if no input is active

To “Scroll up” a menu means listing the various parameters from the bottom up (Pa08 -> Pa 09 -> Pa 10 ….)

Indicates that the instrument is waiting, in stand-by mode; all functions are suspended.

Set to zero.

Resetting an alarm means reactivating it ready for a new signal.

A manual reset alarm must be reset using the keyboard.

To "Scroll up" in a menu is to list parameters from the top down (Pa10 -> Pa 09 -> Pa 08 ....).

Means flashing; normally refers to leds

Average number of hours is the ratio between the total number of hours for which the compressors are available and the

number of compressors in the circuit

Devices in the system, including compressors, fans, hydraulic pump, electrical anti-freeze heaters…

A reference value (set by the user) defining the system’s operating status, such as the thermostat that controls temperature in the home: if we want to maintain a temperature of 20 °C we set the set point to 20°C (the heating system will come on if the temperature in the house falls below 20°C, and go off if it exceeds this value).

Values falling within a given interval; Range 1…100 indicates all values between 1 and 100

A hysteresis is normally defined around a set point to prevent frequent oscillation of the change of status of the load being controlled;

Example: suppose we have a set point of 20 °C on a probe for measurement of room temperature, above which a

compressor will be started up; When room temperature nears the set point (20 °C) there will be an unstable phase during which the relay which starts up the compressor will frequently switch from ON to OFF and vice versa, which could result in serious damage to the system. To prevent this problem a hysteresis is defined: an interval of tolerance within which there will be no change in status; in our example, we could set a hysteresis of 1 °C, in which case the compressor would be started up at 21 °C (set point +

hysteresis) and turned off at 19 °C (set point – hysteresis)

Memory in which data is maintained even when the device is turned off (as distinct from temporary memory, the data in which is lost when the device is turned off.)

It is the change of the operating mode (for example: from Cooling to

The structure of the label shown on an internal face of the device is illustrated below:

heating).

BRAND

The various entries indicated are :

• BRAND : producer’s brand

• PRODUCT NAME : name of product

• PRODUCT CODE : asset number of product

• CUSTOMER REF. : customer ID

• POWER SUPPLY : device power supply

• FIRMWARE : software version

• DESTINATION : device’s usage destination

• CERTIFICATE : product’s certification

18 APPENDIX

Name Code Description

Ech 210 BD

MW320212

Machines management heat pump 1 step or only chiller 2 steps maximum:

• power supply 12V~ 50/60Hz;

• probe input. NTC or 4…20mA configurable condensation

input;

• plastic container 32x74 mm ;

• panel drilling 29x71 mm;

• integrated fan speed control up to 2A maximum without CF

additional module.

• PWM

• MODBUS communication protocol

• Antifreeze function with heat pump

• Adaptive Function

• Fan Defrosting

Ech 215 BD MW320040 FRONTAL PROTECTION PR111120 Rubber frontal sheath for high protection from external environment.

CF-05 MODULE MW991000

CF-15 MODULE MW991100

CF-22 MODULE MW991200

CF-REL MODULE MW991300

ECH 211 EXP MW320100

KEYBOARD TS-W ECH 200 MW320600 Keyboard for remote machine control for wall mounting. KEYBOARD TS-W/ND ECH 200 MW320601 Keyboard for remote machine control for wall mounting without display.

KEYBOARD TS-W/S ECH 200 MW320602

TRANSFORMER TF411200 Transformer 230V~/12A 5,6VA

COPY CARD MW320500 Parameter scheduling key (for hard storage device parameters)

ELECTRICAL WIRING

FILTER FT111201 LC mains filter for ECH 200.

PROBE

EWRS485 T6V53C0700 Serial interface module RS485-TTL for mounting on DIN/4 guide

PARAM MANAGER SPPM000100

EWTK-PT T6V51C0750

EWTK-NET T6V51C0760

MULTI NETWORK INTERFACE MW318933

RS 232 cable 1500128 1,8 m length (**) TTL cable 1500180 0,3 m (30 cm) length (***)

((*) These electrical harnesses are already provided in the instrument package they are to be connected with. (**) Other lengths available. Recommended 1,8 m. Maximum length depends on transmission data speed (***) Other lengths available. Recommended 0,3 m. Other lengths allowed due to magnetic disturbance in environment .

GENERAL NOTES:

• COHV e COLV harnesses are not necessary if directly made up by the manufacturer.

• Remote keyboard connections through 3-way harness without using optional modules.

• Invensys also has multiple NTC probes with different kind of cables (PVC or silicone) and different cable lenght.

COHV0100 Harness for user control (connector + 1 m cables).

COLV0100

CORK0100(*)

COER0100(*)

SN691150 Temperature probe NTC 103AT 1,5MT . SN8P2X1502 Temperature probe NTC 103AT 1,5MT rapid. SN8S0A1500 Temperature probe NTC 6X40 1.5 MT SILICONE. SN8S0A3000 Temperature probe NTC 6X40 3 MT SILICONE.

The same as ECH 210BD except for:

• 5 internal relays with ONLY ON/OFF condensation fan speed management.

Open board (back-of-board mounting) for fan speed control (for fans with current higher than 2A) through phase cut. Characteristics of the model:

• power 500W;

• Faston connectors.

Open board (back-of-board mounting) for fan speed control (for fans with current higher than 2A) through phase cut. Characteristics of the model:

• power 1500W;

• Faston connectors.

Open board (back-of-board mounting) for fan speed control (for fans with current higher than 2A) through phase cut. Characteristics of the model:

• power 2200W;

• Faston connectors.

Open board for the condensation fan ON-OFF control. Characteristics of the model:

• maximum current 6A.;

• faston connectors.

Relay module (230V~, 10A) with DIN guide mounting base for heat pump step 2 control. To be used in heat pump 2 steps configurations together with ECH 211.

Keyboard for remote machine control for wall mounting with internal

temperature sensor.

Harness (connector + 1 m cables) to connect low voltage inputs and

outputs.

3-way harness (connector + 1 m cables) for:

• TS-W ECH 200;

• ECH 210A.

2-way harness (connector + 1 m cables) for:

• ECH 211 EXP.

Scheduling software for Invensys instruments in WINDOWS environment (with EWTK-PT only). Interface module for PARAM MANAGER (RS232 - TTL/RS485) software for mounting on DIN/4 guide. Serial Interface Module with Invensys protocol (RS232 - TTL/RS485) for mounting on DIN/4 guide. Passive serial interface module for mounting on DIN/4 guide.

• RS232-TTL

• RS232-RS485

• TTL-RS485

18.1 CF Modules

CF series instruments are optional modules that if connected to the main control systems allow the adjustment of fans with current from 2 A to 10 A. They have an “open board” form and are available in several models:

• CF-REL for simple ON/OFF control;

• CF-05 to control through phase cut in a maximum power of 500 W;

• CF-15 to control through phase cut in a maximum power of 1.500 W;

• CF-22 to control through phase cut in a maximum power of 2.200 W.

18.1.1 CF modules: technical data

Power supply voltage: 230V~.

type of current on charge:

• CF-05: 500 W maximum.

• CF-15: 1500 W maximum.

• CF-22: 2200 W maximum.

Maximum absorption current:

• CF-05: 2,5 A maximum current at 230 V~.

• CF-15: 8 A maximum current at 230 V~.

• CF-22: 12 A maximum current at 230 V~.

Values and fuse type:

• CF-05: 5x20 2,5 A delayed.

• CF-15: 5x20 8 A delayed.

• CF-22: 5x20 12 A delayed.

the fuse considered is related to the maximum charge hypothesis (it is the fuse supplied). It is designed to protect the fan module power component. In no case a fuse of a superior capacity must be assembled. However, the fuse value has to be dimensioned on the charge to be piloted through the fan module (the resulting value must be lower than the maximum value). If dimensioned appropriately it also protects the charge.

• Supplied power: varying according to the model (500W/1500W/2200W).

• Control signal type: pulse modulation.

• Protection coefficient: IP00 (open board).

18.1.2 CF modules: connections

CF modules connection is performed by using Fast-on connectors assembled on boards.

Below a list of the connection diagrams for every type of module is shown:

Connection

diagram

32 31 30 29

1 2 3

28 27 26 25 24 23 22 21

4 5

(max 1.500 Watt)

CF-15

7 6

CF-REL

N6 N5

32 31 30 29

(max 500 Watt)

28 27 26 25 24 23 22 21

CF-05

N4 N3 N2 N1 F4 F3 F2 F133 34 35 36

(max 2.200 Watt)

28 27 26 25 24 23 22 21

CF-22

N6 N5

N4 N3 N2 N1 F4 F3 F2 F133 34 35 36

A: power supply B: control signal

Always work on connections using a NOT powered instrument. Operations must be performed by qualified personnel.

18.1.3 CF modules: mechanical assembly

Power boards are supplied for the back-of-board installation. The different board model dimensions are listed in the following diagram:

Module

dimensions

50.0

64.0

Copy Card photo

copy Card

CF-REL

72.0

47.026.0

59.0

25.0

CF-05

5.0

85.0

90.0

ﬂ 4.0

18.2 Copy Card

<IMG INFO> 226,7 119,3 0 2 99,25 0

-1 212,25 111,75

This device is used to upload and download the device parameter map.

CF-15 CF-22

83.0

56.0

59.0

7.0

25.0

5.0

85.0

90.0

ﬂ 4.0

83.0

56.0

7.0

<IMG INFO> 141,55 71,55 0 2 141,75 0

-1 127,5 64,5

A: Copy Card viewed from below: dimensions 4x2x1.3 cm B: Copy Card and TTL cable (length 30 cm) C: Copy Card, viewed from 3/4

The following conventions are usually applicable:

• UPLOAD means copying parameters from a unit to COPYCARD

• DOWNLOAD means copying the parameters from a COPY CARD to a unit

18.3 EMC filter

If the fans are regulated by means of the cutting phase, it is necessary to install a noise filter upstream from the power supply. This filter removes the electromagnetic noise this control emits into the mains.

18.4 Param Manager

If you have an adequate Personal Computer running Windows 95 or a higher version, the Param Manager software, and an adequate interface module and proper wiring, it is possible to control all the device parameters by means of a Personal Computer. The unit is easy to program thanks to a series of interfaces that offer a logical, controlled, fast and simple approach.

Æ For further information, see the Param Manager manual.

PCI2150

18.4.1 PCInterface interface module

This device enables the controller to interface with the PC.

Æ For information on how to connect the device, see the Param Manager Manual. Æ For information on the technical specifications of PCI2150, see the instruction sheet.

The PC must be connected with the interface module, and the interface module with the device, with no power on to any of the devices, and in compliance with current safety regulations. It is also important to avoid electroshocks, especially on the open metal surfaces of each unit. It is therefore necessary to adopt special measures to convey electrostatic currents to the ground.

18.5 Sonde

<IMG INFO> 141,6 84,25 0 2 0 656,3

-1 127,3 77,15

<IMG INFO> 113,35 52,5 0 2 0 0

-1 99 45,65

A: Humidity probe EWHS280: dimensions 103x25 mm. B: Humidity probe EWHS300: dimensions 80x80x52 mm. C: Pressure probe EWPA007 D: Temperature probe NTC

19 ANALITIC INDEX

4-20 mA or 0-10 V output............................................ 12

Actual time......................................................................26

ADAPTIVE ....................................................................... 26

Adaptive function .......................................................... 26

regulator......................................................................26

Adaptive offsets .............................................................. 26

Air-water chiller 1 compressor.................................... 60

Air-water chiller 2 compressor.................................... 61

Air-water heat pump 1 compressor........................... 64

Air-water heat pump 2 compressors ......................... 65

Alarm ................................................................................ 12

Alarm events per hour .................................................. 41

Alarm parameters (ALL)............................................... 49

Alarms ..............................................................................41

Analogue alarms............................................................ 45

Analogue inputs................................................................9

configuration table...................................................9

Antifreeze function for units with heat pump ......... 29

Anti-freeze/boiler parameters (FRO) ......................... 50

Anti-freeze/supplementary electrical heater control

....................................................................................... 36

Diagram........................................................................ 37

APPENDIX....................................................................... 68

Average number of hours............................................. 68

Base parameters tabel .................................................7

BLINK ................................................................................68

Boiler................................................................................. 25

Boiler control ..................................................................37

C CF modules

connections..................................................................

Connection diagram............................................... 71

mechanical assembly..................................................71

Module dimensions .............................................. 72

technical data............................................................... 70

CF Modules...................................................................... 70

Compressor configuration ...........................................21

Compressor control – regulation algorithm............ 33

Cooling diagram ........................................................ 33

Heating diagram ........................................................ 34

Compressor on/off sequence....................................... 21

Balancing hours of operation................................. 21

Unvaried sequence ...................................................21

Compressor parameters (CP) ...................................... 48

Compressor timing ........................................................21

Off-on and on-on comp. diagram.......................21

Off-on timing ............................................................. 21

On-on and off-off diagram for 2 comp. .............22

On-on timing ..............................................................21

Timing...........................................................................22

Compressors.....................................................................21

Condensation fan ...........................................................22

Condensation fan control.............................................34

Cool mode...................................................................35

Heat mode...................................................................35

Configuration of analogue inputs................................ 9

Configuration of digital inputs.................................... 10

Configuration of outputs..............................................10

Labels ............................................................................11

Configuration parameters.....................................46;

Connection diagram of the DRV module ................23

Connection diagrams ...................................................... 8

Connection of Copy Card.......................................................14

Connection to probe AI3 configured as 4..20mA C.. 9

Connection to probe AI3 configured as NTC............. 8

Cooling..............................................................................30

Cooling Mode................................................................27

copy Card .........................................................................72

Copy Card.........................................................................72

Copy card device ...................................................................14

Copy Card photo ............................................................72

Counter mode .................................................................39

Cross references................................................................. 5

Current transformer.......................................................55

Cut-off ...............................................................................68

Cyclic operation..............................................................24

Decalibrating defrost start setpoint according to T

ext ..................................................................................39

Defrost end.......................................................................39

Diagram........................................................................39

Defrost parameters (DFR).............................................51

Defrost start.....................................................................38

Diagram........................................................................38

Defrosting......................................................................... 38

Description of parameters............................................46

Device off..........................................................................30

DIAGNOSTICS.................................................................. 41

Digital alarms..................................................................45

Digital inputs...................................................................10

configuration table.................................................10

polarity .........................................................................10

Dimensions....................................................................... 55

DISCLAIMER.....................................................................59

Display ..............................................................................15

Displays.............................................................................15

DRV module.....................................................................23

Dynamic set point .......................................................... 31

Control parameters...................................................31

Modification depending on current input with

negative offset....................................................... 32

Modification depending on current input with

positive offset ........................................................ 32

Modification depending on outdoor temperature

with negative offset.............................................. 33

Modification depending on outdoor temperature

with positive offset...............................................32

Ech 200 Family...................................................................6

Electromagnetic characteristi ..................................... 55

EMC filter ......................................................................... 72

Example............................................................................28

EXAMPLES OF AIR CONDITIONING CIRCUITS......... 60

External anti-freeze electrical heater control..........37

External anti-freeze electrical heaters....................... 25

Fan configuration ..........................................................22

Fan control in cool mode

diagram........................................................................ 35

Fan control in Defrosting mode.................................. 29

Fan control in heat mode

diagram........................................................................ 36

Fan control parameters (FAN).................................... 48

Fan module pilot output.............................................. 12

Forbidden use.................................................................. 57

FUNCTIONS..................................................................... 38

GLOSSARY........................................................................ 68

Heating.............................................................................30

Heating Mode ............................................................... 27

HOW TO USE THIS MANUAL..........................................5

Hydraulic pump.............................................................. 23

Continuous operation.............................................. 23

Operation in response to request......................... 24

Hydraulic pump control ............................................... 36

Hysteresis..........................................................................

Icons for emphasis ............................................................5

Impulse duration............................................................23

INSTALLATION.................................................................8

Internal anti-freeze/supplementary electrical heaters

....................................................................................... 24

configuration............................................................ 24

INTRODUCTION ................................................................6

Keyboard.......................................................................... 15

Keys ................................................................................... 15

mode ............................................................................15

Mode and on-off combinations ............................ 15

On-off – Reset alarms .............................................. 15

Label..........................................................................20; 68

Led......................................................................................16

List of alarms ...................................................................41

Load control ....................................................................33

Loads .................................................................................68

Logical OR........................................................................68

Manual reset....................................................................68

Menu structure................................................................19

Minimum time.................................................................26

Models available .............................................................. 6

Notes .................................................................................28

On-on and off-off diagram for 2 comp. ....................22

Open collector output...................................................12

Operating modes............................................................30

configuration table....................................................30

Optional output..............................................................12

configuration table.................................................12

Outputs.............................................................................10

Pa C08..............................................................................48

Pa C09..............................................................................48

Pa C10..............................................................................48

Pa C11..............................................................................48

Pa C12..............................................................................48

Pa C13..............................................................................48

Pa F24 ..............................................................................49

Pa P01 ...............................................................................50

Param Manager..............................................................72

Parameter programming – Menu levels ................... 18

PARAMETERS................................................................... 46

PCI2150.............................................................................73

PCInterface interface module ......................................73

Permanent memory .......................................................68

Permitted use................................................................... 57

Phase shift ........................................................................23

Physical quantities and units of measurement........13

Pick-up ..............................................................................23

Polarity NO3..................................................................21

Power failure.................................................................... 40

Power step........................................................................21

Pressure-based operation .............................................13

Protection in Cooling mode.........................................28

Protection in Heating mode.........................................28

Range ................................................................................68

Recording hours of operation...................................... 38

References........................................................................... 5

Regulation algorithm in cool mode...........................33

Regulation algorithm in heat mode ..........................34

Regulations ......................................................................55

Relays ................................................................................11

configuration table.................................................11

Remote keyboard ........................................................... 16

Remote keyboard output ............................................. 12

Reset..................................................................................68

Reset alarm...................................................................... 68

RESPONSIBILITY AND RESIDUAL RISKS.............. 58

Reversing valve ............................................................... 23

Polarity ......................................................................... 23

Reversing valve control.................................................36

Safety timing................................................................... 21

Scroll down...................................................................... 68

Scroll up ........................................................................... 68

Selection of operating mode from analogue input 30

Diagram........................................................................ 30

Serial outputs.................................................................. 14

SET display for air-air machines (for models Ech

2xxB only)....................................................................15

Set Point ........................................................................... 68

Set point offset (for ET<MT) ........................................ 26

Set point regression (for ET(MT)................................. 27

Setting set points............................................................ 31

Silent speed...................................................................... 35

Sonde ................................................................................ 73

Stand-by....................................................................30; 68

Start defrost temperature compensation................. 39

SUMMARY ..........................................................................2

Supplementary electrical heater control.................. 37

Supplementary electrical heaters............................... 25

Switching from digital input ....................................... 33

SYSTEM CONFIGURATION........................................... 21

Table of alarms ............................................................42

TABLE OF ANALOGUE ALARMS: .................................45

Table of compressor parameters (CP).................52

TABLE OF DIGITAL ALARMS:........................................45

Table of parameters....................................................... 51

alarm parameters (ALL)........................................53

Anti-freeze/boiler parameters (FRO.....................53

defrost parameters (DFR .........................................53

fan control parameters (FAN) ...........................52

pump parameters (PUP............................................53

TECHNICAL FEATURES ..................................................55

Technical informatio .....................................................55

TEMPERATURE CONTROL FUNCTIONS..................... 30

Temperature- or pressure-based operation .............13

configuration tabl......................................................13

Temperature-based operation ....................................13

TK output

configuration table.................................................11

Triac...................................................................................11

Units of measurement ...................................................13

USE OF THE DEVICE .......................................................57

USER INTERFACE.............................................................15

Visibility of parameters and sub-menus....................20

Water-water Chiller 1 compressor..............................62

Water-water Chiller 2 compressor..............................63

Water-water heat pump 1 compressor .....................66

Water-water heat pump 2 compressors ...................67

Eliwell & Controlli s.r.l.

Via dell’Industria, 15 Zona Industriale Paludi 32010 Pieve d’Alpago (BL) ITALY Telephone +39 0437 986111 Facsimile +39 0437 989066 Internet http://www.eliwell.it

Technical Customer Support:

Email: techsuppeliwell@invensys.com Telephone +39 0437 986300

Invensys Controls Europe Part of the Invensys Group

ECH 200 BD

2005/5/

Cod: 8MA10065

Eliwell ECH 200BD ""Adaptive User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual