Daikin EWAQ080DAYN, EWAQ100DAYN, EWAQ130DAYN, EWAQ150DAYN, EWAQ180DAYN Operation manuals

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Page 1

OPERATION MANUAL

Packaged air-cooled water chillers

EWAQ080DAYN EWAQ100DAYN EWAQ130DAYN EWAQ150DAYN EWAQ180DAYN EWAQ210DAYN EWAQ240DAYN EWAQ260DAYN

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EWAQ080DAYN EWAQ180DAYN EWAQ100DAYN EWAQ210DAYN EWAQ130DAYN EWAQ240DAYN EWAQ150DAYN EWAQ260DAYN

Packaged air-cooled water chillers

Operation manual

CONTENTS Page

Introduction ....................................................................................... 1

Technical speciﬁcations ............................................................................. 1

Electrical speciﬁcations ............................................................................. 2

Important information regarding the refrigerant used ................................ 3

Description ........................................................................................3

Function of the main components.............................................................. 4

Safety devices............................................................................................ 5

Internal wiring - Parts table........................................................................6

Before operation................................................................................ 7

Checks before initial start-up ..................................................................... 7

Water supply.............................................................................................. 7

Power supply connection and crankcase heating ...................................... 7

General recommendations ........................................................................ 7

Operation .......................................................................................... 8

Digital controller.........................................................................................8

Working with the unit ................................................................................. 8

Advanced features of the digital controller............................................... 11

Troubleshooting ............................................................................... 19

Maintenance.................................................................................... 22

Maintenance activities ............................................................................. 22

Disposal requirements.............................................................................23

READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN YOUR FILES FOR FUTURE REFERENCE.

The original instructions are written in English. All other languages are translations of the original instructions.

This appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

INTRODUCTION

This operation manual concerns packaged air-cooled water chillers of the Daikin EWAQ-DAYN series. These units are provided for outdoor installation and used for cooling applications. The EWAQ units can be combined with Daikin fan coil units or air handling units for air conditioning purposes. They can also be used for supplying water for process cooling.

This manual has been prepared to ensure adequate operation and maintenance of the unit. It will tell you how to use the unit properly and will provide help if problems occur. The unit is equipped with safety devices, but they will not necessarily prevent all problems caused by improper operation or inadequate maintenance.

In case of persisting problems contact your local Daikin dealer.

(mm)

(1)

2311x2000x2566 2311x2000x2631

Technical speciﬁcations

General EWAQ 080 100 130

Dimensions HxWxD

Weight

• machine weight

• operation weight

(kg)

1350 1400 1500

(kg)

1365 1415 1517

Connections

• chilled water inlet and outlet

•evaporator drain

3" OD 3" OD 3" OD 1/2"G 1/2"G 1/2"G

Internal water volume (l) 15 15 17

Expansion vessel (only for OPSP, OPTP and OPHP)

•volume

• pre-pressure

Safety valve water circuit

(bar) (bar)

(l)

35 35 35

1.5 1.5 1.5

3.0 3.0 3.0

Pump (only for OPSP)

• type

• model (standard)

Compressor

TP 50-240/2 TP 50-240/2 TP 65-230/2

Ver tical in-line pump

Type semi-hermetic scroll compressor Qty x model 2x SJ180-4 2x SJ240-4 4x SJ161-4 Speed

(rpm)

2900 2900 2900 Oil type FVC68D FVC68D FVC68D Oil charge volume

Condenser

Nominal air ﬂow (m

(l)

2x 6.2 2x 6.2 4x 3.3

/min) 780 780 800

No. of motors x output (W) 4x 500 4x 500 4x 600

Evaporator

Model P120T P120T DV47

General EWAQ 150 180 210

Dimensions HxWxD

(mm)

2311x2000x2631

2311x2000x3081

Weight

• machine weight

• operation weight

(kg)

1550 1800 1850

(kg)

1569 1825 1877

Connections

• chilled water inlet and outlet

•evaporator drain

3" OD 3" OD 3" OD 1/2"G 1/2"G 1/2"G

Internal water volume (l) 19 25 27

Expansion vessel (only for OPSP, OPTP and OPHP)

•volume

• pre-pressure

Safety valve water circuit

(bar) (bar)

(l)

35 35 35

1.5 1.5 1.5

3.0 3.0 3.0

Pump (only for OPSP)

• type

• model (standard)

Compressor

TP 65-230/2 TP 65-260/2 TP 65-260/2

Ver tical in-line pump

Type semi-hermetic scroll compressor

Qty x model 4x SJ180-4

Speed

(rpm)

2900 2900 2900

2x SJ180-4 +

2x SJ240-4

4x SJ240-4

Oil type FVC68D FVC68D FVC68D Oil charge volume

Condenser

Nominal air ﬂow (m

(l)

2x 6.2

/min) 860 1290 1290

2x 6.2 + 2x 6.2

4x 6.2

No. of motors x output (W) 4x 1000 6x 1000 6x 1000

Evaporator

Model DV47 DV58 DV58

Before starting up the unit for the ﬁrst time, make sure that it has been properly installed. It is therefore necessary to carefully read the installation manual supplied with the unit and the recommendations listed in "Checks before initial start-up" on page 7.

Operation manual

(1) Refer to the engineering data book for the complete list of speciﬁcations.

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 3

General EWAQ 240 260

Dimensions HxWxD

(mm)

2311x2000x4850

Weight

•machine weight

• operation weight

(kg)

3150 3250

(kg)

3189 3292

Connections

• chilled water inlet and outlet

•evaporator drain

3" 3"

1/2"G 1/2"G

Internal water volume (l) 39 42

Expansion vessel (only for OPSP, OPTP and OPHP)

•volume

• pre-pressure

Safety valve water circuit

(bar) (bar)

(l)

50 50

1.5 1.5

3.0 3.0

Pump (only for OPSP)

• type

•model (standard)

Ver tical in-line pump

TP 65-260/2 TP 65-260/2

Compressor

Type

Qty x model

Speed

(rpm)

semi-hermetic scroll

compressor

2x SJ240-4 +

2x SJ300-4

2900 2900

4x SJ300-4

Oil type FVC68D FVC68D

(l)

Oil charge volume

Condenser

Nominal air ﬂow (m

2x 6.2 +

2x 6.2

/min) 1600 1600

4x 6.2

No. of motors x output (W) 8x 600 8x 600

Evaporator

Model DV58 DV58

Electrical speciﬁcations

(1)

EWAQ 080 100 130 150

Power supply YN

• Phase

•Frequency

•Voltage

•Voltage tolerance

(Hz)

(V)

(%)

50 400 ±10

Unit

• Nominal running current (A)

•Maximum running current (A)

• Recommended fuses according to IEC 269-2

60 72 88 113 96 120 160 177

(A)

3x 125 gL 3x 160 gL 3x 200 gL 3x 200 gL

Compressor

• Circuit 1 Circuit 2

• Phase

•Frequency

•Voltage

• Nominal running current Circuit 1

Circuit 2

15 + 15—20 + 20—13 + 13

(hp)

(Hz)

(V)

(A)

39 + 39—51 + 51—35 + 35

(A)

13 + 13 3~ 50

400

35 + 35

15 + 15 15 + 15

39 + 39 39 + 39

(hp)

Control and fan motor

• Phase

•Frequency

•Voltage

•Maximum running current (A)

(Hz)

(V)

4x 1.5 4x 1.5 4x 1.6 4x 2.3

1~ 50

230 V

Pump

•Power

• Nominal running current (A)

(kW)

2.2 2.2 3 3

4.5 4.5 6.3 6.3

Heater tape (OP10)

• Supply voltage

•Power (standard) (OPSP) (OPBT)

• Optional ﬁeld heater

• Recommended fuses

(V)

230 V ±10%

1x 300 W 2x 300 W

2x 300 W + 150 W

maximum 1 kW

(A)

2x 10

EWAQ 180 210 240 260

Power supply YN

• Phase

•Frequency

•Voltage

•Voltage tolerance

(Hz)

(V)

(%)

50 400 ±10

Unit

• Nominal running current (A)

• Maximum running current (A)

• Recommended fuses according to IEC 269-2

131 144 162 181 209 233 262 290

(A)

3x 250 gL 3x 250 gL 3x 300 gL 3x 355 gL

Compressor

• Circuit 1 Circuit 2

• Phase

•Frequency

•Voltage

• Nominal running current Circuit 1

Circuit 2

(hp)

(Hz)

20 + 15 20 + 15

(V)

(A)

51 + 39

(A)

51 + 39

20 + 20 20 + 20

51 + 51 51 + 51

3~ 50

400

25 + 20 25 + 20

65 + 51 65 + 51

25 + 25 25 + 25

65 + 65 65 + 65

(hp)

Control and fan motor

• Phase

•Frequency

•Voltage

• Maximum running current (A)

(Hz)

(V)

6x 2.3 6x 2.3 8x 1.6 8x 1.6

1~ 50

230 V

Pump

•Power

• Nominal running current (A)

(kW)

4444

8.0 8.0 8.0 8.0

Heater tape (OP10)

• Supply voltage

•Power (standard)

(OPSP) (OPBT)

• Optional ﬁeld heater

• Recommended fuses

(V)

230 V ±10%

1x 300 W 2x 300 W

2x 300 W + 150 W

maximum 1 kW

(A)

2x 10

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 4

Important information regarding the refrigerant used

This product contains ﬂuorinated greenhouse gases covered by the Kyoto Protocol. Refrigerant type: R410A

(1)

GWP

value: 1975

(1)

GWP = global warming potential

Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information.

DESCRIPTION

The EWAQ air-cooled water chillers are available in 8 standard sizes.

3939 39 39202 23 22321417 1718

EWAQ080~150 EWAQ180+210

1000

3000

52627

1000

1200 1200

3000

10001000

16 19

1 26

1200 1200

EWAQ240+260

1000

3000

1000

1200 1200

36 13 8 11

30 35 37

32922

28 152425 7 24447

321 21 10 93834

32 33 12

Figure - Main components

1 Evaporator 14 Ambient temperature sensor (R1T) 29 Pump (optional) 2 Condenser 15 Drier + charge valve 30 Buffertank (optional) 3 Compressor 16 Power supply intake 31 Expansion vessel (optional) 4 Electronic expansion valve + sight glass

with moisture indication

5 Discharge stop valve (optional) 34 Frame 6 Suction stop valve (optional) 19 Field wiring intake 35 Buffertank drain valve 7 Liquid stop valve (optional) 20 Main isolator switch 36 Regulating valve (optional) 8 Chilled water in (Victaulic

9 Chilled water out (Victaulic 10 Water drain evaporator 23 Fan 39 Eyebolt (for lifting the unit) 11 Air purge 24 Safety valve 12 Leaving water temperature sensor

(R3T)

13 Entering water temperature sensor

(R2T)

Operation manual

coupling) 21 Tr ansportbeam 37 Water safety valve (optional)

coupling) 22 Flowswitch 38 Pressure gauge (optional)

17 Switchbox 32 Waterﬁlter 18 Digital display controller (behind service

panel)

25 High pressure sensor 26 Low pressure sensor 27 High pressure switch Required space around the unit for service 28 Oil sight glass

33 Water stop valve (optional)

(only for EWAQ080~210)

and air intake

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 5

Function of the main components

M15F

15 15

M13F

M14F

6 6

p >

B1PH B2PH

p >

R14T R34T

S1PH

12 12

D D

12 12

R17T R37T

t >

Y11E Y21E

p >

S2PH

12 12

B1PL

p <

M12CM11C

R15T R25T R35T R45T

(*)

PHE

(*)

M22C M21C

M25F

M23F

M24F

B2PL

p <

1010

DDD

R3T R2T

t > t >

1010

2132

Figure - Functional diagram

1 Water outlet 11 Electronic expansion valve + sight 2 Evaporator 21 Drain valve 31 Shut off valve

glass with moisture indication

3 Water inlet 12 Check valve 22 Regulating valve 32 Water circuit safety valve 4 Compressor 13 Condenser 23 Pump 5 Suction stop valve (optional) 14 Ambient temperature sensor 24 Fill port (*) Standard (A) or dual pressure 6 Discharge stop valve (optional) 15 Fan 25 Drain port 7 Refrigerant circuit safety valve 16 High pressure sensor 26 Expansion vessel A Standard 8 Drier/charge valve 17 Low pressure sensor 27 Pressure gauge B Dual pressure relief valve 9 Liquid stop valve (optional) 18 High pressure switch 28 Air purge C Only for 70~80 HP units

10 Oil sight glass 19 Flowswitch 29 Buffer tank D Optional

As the refrigerant circulates through the unit, changes in its state or condition occur. These changes are caused by the following main components:

■ Compressor The compressor (M*C) acts as a pump and circulates the refrigerant in the refrigeration circuit. It compresses the refrigerant vapour coming from the evaporator at the pressure at which it can easily be liqueﬁed in the condenser.

■ Condenser The function of the condenser is to change the state of the

20 Service port 30 Filter

relief valve (B)

■ Filter/drier The ﬁlter installed behind the condenser removes small particles from the refrigerant to prevent damage to the compressor and expansion valve. The drier takes the water out of the system.

■ Expansion valve The liquid refrigerant coming from the condenser enters the evaporator via an expansion valve. The expansion valve brings the liquid refrigerant to a pressure at which it can easily be evaporated in the evaporator.

refrigerant from gaseous to liquid. The heat gained by the gas in the evaporator is discharged through the condenser to the ambient air, and the vapour condenses to liquid.

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 6

■ Evaporator The main function of the evaporator is to take heat from the water that ﬂows through it. This is done by turning the liquid refrigerant, coming from the condenser, into gaseous refrigerant.

■ Water in/outlet connection The water inlet and outlet connection allow an easy connection of the unit to the water circuit of the air handling unit or industrial equipment.

Safety devices

The unit is equipped with three kinds of safety device:

1 General safety devices

General safety devices shut down all circuits and stop the whole unit. For this reason the unit has to be manually put on again after a general safety occurred.

2 Circuit safety devices

Circuit safety devices shut down the circuit they protect, while the other circuits remain activated.

3 Part safety devices

Part safety devices shut down the part they protect.

An overview of all safety devices is given below.

■ Overcurrent relays

■ Overcurrent relay for compressors (only for SJ161-4) (circuit

safety device)

The overcurrent relay protects the compressor motor in case of overload, phase failure or too low voltage.

■ Overcurrent relay for fans (part safety device)

The overcurrent relay protects the fan motors in case of overload, phase failure or too low voltage.

■ Overcurrent relay for pump (general safety device)

The overcurrent relay protects the pump in case of overload, phase failure or too low voltage.

When activated, the overcurrent relays have to be reset in the switch box and the controller needs to be reset manually.

The overcurrent relays are factory set and may not be adjusted.

■ Compressor SJ161-4 thermal protector (part safety devices) Compressor SJ161-4 is equipped with an internal overload motor protection to protect the unit against excessive current and temperature caused by overloading, low refrigerant ﬂow or phase loss. The compressor will shut down and will automatically restart when temperature returns to normal. This is not detected by the controller.

■ Compressor SJ180-4 electronic protection module (circuit safety device) Compressor SJ180-4 is equipped with an electronic protection module to provide for efﬁcient and reliable protection against overheating, overloading, and phase loss. The controller will detect the shut down of the compressor. The controller needs to be reset manually. The compressor is internally protected against reverse phase.

■ Compressors SJ240-4 and SJ300-4 electronic protection modules (circuit safety device) Compressors SJ240-4 and SJ300-4 are equipped with an electronic protection module to provide for efﬁcient and reliable protection against overheating, overloading, phase loss and phase reversal. The controller will detect the shut down of the compressor. The controller needs to be reset manually.

■ Reverse phase protector (general safety device) The reverse phase protectors prevent the unit from being operated in reverse phase. If the unit does not start, two phases of the power supply must be inverted.

■ Flowswitch (general safety devices) The unit is protected by a ﬂowswitch (S1L). When the water ﬂow becomes lower than the minimum allowed water ﬂow, the ﬂowswitch shuts down the unit. When the water ﬂow becomes normal, the protection resets automatically but the controller still needs to be reset manually.

■ Discharge thermal protectors (circuit safety devices) The unit is equipped with discharge thermal protectors (R*T). The protectors are activated when the temperature of the refrigerant leaving the compressor becomes too high. When the temperature returns to normal the controller needs to be reset manually.

■ Freeze-up protection (general safety devices) The freeze-up protection prevents the water in the evaporator from freezing during operation.

■ When the outlet water temperature is too low, the controller

shuts down the compressors. When the outlet water temperature returns to normal, the controller resets automatically.

■ When the refrigerant temperature is too low, the controller

shuts down the unit. When the refrigerant temperature returns to normal, the controller needs to be reset manually.

■ Low pressure safety (circuit safety devices) When the suction pressure of a circuit is too low, the circuit controller shuts down the circuit. When the pressure returns to normal, the safety device can be reset on the controller.

■ Pressure relief safety valve (general safety devices) The safety valve is activated when the pressure in the refrigerant circuit becomes too high. If this occurs, shut down the unit and contact your local dealer.

■ High pressure setback (circuit safety device) The high pressure setback prevents the high pressure to become too high so that high pressure switch is activated. When the high pressure is too high, the controller shuts down the compressor. When the pressure returns to normal, the controller resets automatically.

■ High pressure switch (circuit safety devices) Each circuit is protected by a high pressure switch (S*PH) which measures the condenser pressure (pressure at the outlet of the compressor). When the pressure becomes too high, the pressure switch is activated and the circuit stops. When the pressure becomes normal again, the protection resets automatically but the controller still needs to be reset manually. The switch is factory-set and may not be adjusted.

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 7

Internal wiring - Parts table

Refer to the internal wiring diagram supplied with the unit. The abbreviations used are listed below:

A01P...................... PCB extension

A02P.............**...... PCB communication (only for option EKACPG)

A4P........................ PCB wired remote controller

A5P...............**...... PCB wired remote controller

(only for option EKRUPG)

A11P,A21P............. PCB main controller circuit 1, circuit 2

A13P,A23P....**...... Frequency inverter circuit 1, circuit 2

(only for option OPIF)

A71P...................... PCB EEV driver

B1PH,B2PH........... High pressure sensor circuit 1, circuit 2

B1PL,B2PL............ Low pressure sensor circuit 1, circuit 2

DS1........................ PCB DIP-switch

E1HS ............## .... Switch box heater with fan

(only for EWAQ130~260 with option OPIF)

E3H...............**...... Heater tape (only for option OP10)

E4H...............**...... Heater tape (only for options OP10, OPSP,

OPHP and OPTP)

E5H...............* ....... Fieldheater

E6H...............**...... Buffertank heater

(only for option OP10 and OPBT)

E7H...............## .... Switch box heater

(only for EWAQ080+100 with option OPIF)

E11HC,E12HC ...... Crankcase heater compressor circuit 1

E21HC,E22HC ...... Crankcase heater compressor circuit 2

(only for EWAQ130~260)

F1~F3 ...........# ...... Main fuses

F1U........................ Fuse PCB

F4,F5 ............# ...... Fuse for heater

F6B........................ Autofuse for primary of TR1

F8B...............**...... Autofuse for switchbox heater

(only for option OPIF)

F9B........................ Autofuse for secondary of TR1

F11B,F12B ............ Autofuse for compressors (M11C, M12C)

(only for EWAQ130~260)

F14B,F24B ............ Autofuse for fanmotors circuit 1, circuit 2

F15B,F25B ...**...... Autofuse for fanmotors circuit 1, circuit 2

(only for option OPIF)

F16B.............## .... Autofuse for pump (K1P) (only for options OPSP,

OPHP, OPTC, OPTP and OPSC)

F17B.............## .... Autofuse for pump (K2P)

(only for options OPTC and OPTP)

F21B,F22B ............ Autofuse for compressors (M21C, M22C)

(only for EWAQ130~260)

H1P~H6P .....* ....... Indication lamp for changeable digital outputs

H11P,H12P ............Indication lamp for operation compressor

circuit 1 C11M, C12M

H21P,H22P ............Indication lamp for operation compressor

circuit 2 C21M, C22M (only for EWAQ130~260)

HAP~HEP.............. LED PCB

K1A,K2A................ Auxiliary relay for compressor safety circuit 1,

circuit 2

K1P...............## .... Pump contactor (only for options OPSP, OPHP,

OPTC, OPTP and OPSC)

K1R~K22R ............ PCB relay

K1S...............* ....... Overcurrent relay pump

K2P...............## .... Pump contactor

(only for options OPTC and OPTP)

K3A........................ Auxiliary relay for heater tape

K11M,K12M........... Compressor contactor for circuit 1

K13F,K14F ............. Fancontactor for circuit 1

K13S,K14S............ Fan overcurrent relay for circuit 1

K15F...................... Fancontactor for circuit 1

(only for EWAQ080+100 and EWAQ180~260)

K15S ......................Fan overcurrent relay for circuit 1

(only for EWAQ080+100 and EWAQ180~260)

K16F ......................Fancontactor for circuit 1

(only for EWAQ080+100 and EWAQ240+260)

K16S ......................Fan overcurrent relay for circuit 1

(only for EWAQ080+100 and EWAQ240+260)

K21M,K22M ...........Compressor contactor for circuit 2

(only for EWAQ130~260)

K23F,K24F .............Fancontactor for circuit 2

(only for EWAQ130~260)

K23S,K24S ............Fan overcurrent relay for circuit 2

(only for EWAQ130~260)

K25F ......................Fancontactor for circuit 2

(only for EWAQ180~260)

K25S ......................Fan overcurrent relay for circuit 2

(only for EWAQ180~260)

K26F ......................Fancontactor for circuit 2

(only for EWAQ240+260)

K26S ......................Fan overcurrent relay for circuit 2

(only for EWAQ240+260)

M1P.............. * .......Pump motor 1 (only for options OPSP, OPHP,

OPTC and OPTP)

M2P.............. * .......Pump motor 2

(only for options OPTC and OPTP)

M11C,M12C........... Compressor motors circuit 1

M13F,M14F ............Fan motors circuit 1

M15F...................... Fan motors circuit 1

(only for EWAQ080+100 and EWAQ180~260)

M16F...................... Fan motors circuit 1

(only for EWAQ080+100 and EWAQ240+260)

M21C,M22C........... Compressor motors circuit 2

(only for EWAQ130~260)

M23F,M24F ............Fan motors circuit 2 (only for EWAQ130~260)

M25F...................... Fan motor circuit 2 (only for EWAQ180~260)

M26F...................... Fan motor circuit 2 (only for EWAQ240+260)

PE ..........................Main earth terminal

Q1T.............. **......Thermostat (only for option OP10)

Q11C,Q12C ...........Thermal protector compressor circuit 1

(only for EWAQ130)

Q11C,Q12C ...........Electronic protection module compressor

circuit 1 (not for EWAQ130)

Q21C,Q22C ...........Thermal protector compressor circuit 2

(only for EWAQ130)

Q21C,Q22C ...........Electronic protection module compressor

circuit 2 (only for EWAQ150~260)

R1T ........................Ambient temperature sensor

R2T ........................Inlet water temperature sensor

R3T ........................Outlet water temperature sensor

R8T .............. * ....... Temperature sensor for changeable analogue

input

R14T ......................Suction temperature sensor circuit 1

R15T,R25T ............. Discharge temperature sensor circuit 1

R17T ......................Refrigerant piping temperature sensor circuit 1

R34T ......................Suction temperature sensor circuit 2

(only for EWAQ130~260)

R35T,R45T ............. Discharge temperature sensor circuit 2

(only for EWAQ130~260)

R37T ......................Refrigerant piping temperature sensor circuit 2

(only for EWAQ130~260)

S1A~S3A ...............PCB DIP-switch

S1L.........................Flowswitch

S1M........................Main isolator switch

S1PH,S2PH ...........High pressure switch circuit 1, circuit 2

S1S~S5S ..... * .......Switch for changeable digital input

S1T .............. ##..... Thermal contact (only for option OPIF)

S2M.............. #.......Heater tape isolator switch

T1A .............. **......Current transducer (only for option OP57)

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 8

T1V............... ** ......Voltage transducer (only for option OP57)

TR1 ........................Transfo control circuit (400 V/230 V)

TR1A ............ **......Current measurement transfo

(only for option OP57)

V1C ........................Ferrite core

V1F,V2F........ **......Noise ﬁlter circuit 1, circuit 2

(only for EWAQ130~210 with option OPIF)

V2C ..............** ......Ferrite core (only for option EKACPG)

X*A .........................PCB terminal

X*Y .........................Connector

X1M........................PCB terminal strip

Y11E ......................Electronic expansion valve cooling circuit 1

Y21E ......................Electronic expansion valve cooling circuit 2

(only for EWAQ130~260)

Not included with standard unit

Not possible as option Possible as option

Obligatory # ##

Not obligatory * **

10 Air inlet/outlet

Check that the air inlet and outlet of the unit is not obstructed by paper sheets, cardboard, or any other material.

11 Power supply voltage

Check the power supply voltage on the local supply panel. The voltage should correspond to the voltage on the identiﬁcation label of the unit.

12 Water connection

Check water piping system and circulating pumps.

Water supply

Fill the water piping, taking into account the minimum water volume required by the unit. Refer to the "installation manual".

Make sure that the water is of the quality as mentioned in the installation manual.

Purge the air at the high points of the system and check the operation of the circulation pump and the ﬂowswitch.

BEFORE OPERATION

Checks before initial start-up

Make sure that the circuit breaker on the power supply panel of the unit is switched off.

After the installation of the unit, check the following before switching on the circuit breaker:

1 Field wiring

Make sure that the ﬁeld wiring between the local supply panel and the unit has been carried out according to the instructions described in the installation manual, according to the wiring diagrams and according to European and national regulations.

2 Fuses or protection devices

Check that the fuses or the locally installed protection devices are of the size and type speciﬁed in the installation manual. Make sure that neither a fuse nor a protection device has been bypassed.

3 Earth wiring

Make sure that the earth wires have been connected properly and that the earth terminals are tightened.

4 Internal wiring

Visually check the switch box for loose connections or damaged electrical components.

5 Fixation

Check that the unit is properly ﬁxed, to avoid abnormal noises and vibrations when starting up the unit.

6 Damaged equipment

Check the inside of the unit for damaged components or squeezed pipes.

7 Refrigerant leak

Check the inside of the unit for refrigerant leakage. If there is a refrigerant leak, call your local dealer.

8 Oil leak

Check the compressor for oil leakage. If there is an oil leak, call your local dealer.

Power supply connection and crankcase heating

In order to avoid compressor damage, it is necessary to switch on the crankcase heater for at least 6 hours before starting the compressor after a long period of standstill.

To switch on the crankcase heater proceed as follows:

1 Switch on the circuit breaker on the local supply panel. Make

sure that the unit is "OFF".

2 The crankcase heater is switched on automatically.

3 Check the supply voltage on the supply terminals L1, L2, L3 by

means of a voltmeter. The voltage must correspond to the voltage indicated on the identiﬁcation label of the unit. If the voltmeter reads values which are not within the ranges speciﬁed in the technical data, check the ﬁeld wiring and replace the supply cables if necessary.

4 Check if the crankcase heaters are warming up. After 6 hours, the unit is ready for operation.

General recommendations

Before switching on the unit, read following recommendations:

1 When the complete installation and all necessary settings have

been carried out, close all service panels of the unit.

2 The service panels of the switch boxes may only be opened by a

licensed electrician for maintenance purposes.

3 When accessibility to the digital controller is frequently

necessary, install an optional digital remote controller (EKRUPG).

4 To prevent the evaporator from freezing (when OP10 is installed)

and to avoid damage to the LCD displays of the digital controller, never switch off the power supply during winter.

9 Stop valves

Open the liquid line, discharge and suction stop valves (if provided) completely.

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 9

OPERATION

Connection of a remote digital controller to the unit

The EWAQ units are equipped with a digital controller (located behind the service panel) offering a user-friendly way to set up, use and maintain the unit.

This part of the manual has a task-oriented, modular structure. Apart from the ﬁrst section, which gives a brief description of the controller itself, each section or subsection deals with a speciﬁc task you can perform with the unit.

Depending on the unit there are one or two cooling circuits in the system. The units EWAQ130~260 exist out of two circuits, whereas the units EWAQ080+100 only have one circuit. These circuits are generally named C1 and C2 in the following descriptions. So all information about circuit 2 (C2) is not applicable for EWAQ080+100 units.

Digital controller

User interface

The digital controller consists of an alphanumeric display, labelled keys which you can press and a number of LEDs.

■ Digital controller and digital remote controller (EKRUPG)

Figure - Digital (remote) controller

œ key, to start up or to shut down the unit. π key, to enter the safeties menu or to reset an alarm. ƒ key, to enter the main menu

keys, to scroll up or down through the screens of a menu

ﬁ

(only in case ^, v or ÷ appears) or to raise, respectively

lower a setting.

‡ key, to conﬁrm a selection or a setting.

NOTE

Temperature readout tolerance: ±1°C. Legibility of the alphanumeric display may decrease in

direct sunlight.

How to enter a menu

Scroll through the main menu using the ﬁ and Ì keys to go to the menu of your choice. Push the ‡ key to enter the selected menu.

ªÒÂµ® †Úæ∂Ï

Readout menu Setpoints menu Usersettings menu Timers menu History menu Info menu I/O status menu Login/logout menu Network menu Cool/heat menu

■ Access to the setpoints menu (∑) and the usersettings menu (Å) is protected by a password, refer to "Changing the user password" on page 19.

■ The cool/heat menu is not available for EWAQ units.

Not selected Selected

†

∂

ª ∑ Å Ó ‚ ™ Ÿ Æ ∆ Í

For a remote digital controller a cable length of up to 500 metres between the remote digital controller and the unit is allowed. This gives the opportunity to control the unit from a considerable distance. Refer to "Cable for remote digital controller" in the installation manual for cable speciﬁcations.

These restrictions are the same for units in a DICN conﬁguration.

NOTE

When a remote digital controller is connected to a stand-alone unit, the address of the remote digital controller has to be set to SUB by means of the DIPswitches on the back of the remote digital controller. Refer to the installation manual "Setting the addresses on the remote digital controller" for setting the address.

Working with the unit

This chapter deals with the everyday usage of the unit. Here, you will ﬁnd how to perform routine tasks, such as:

■ "Setting the language" on page 8

■ "Switching the unit on" on page 8

■ "Consulting actual operational information" on page 9

■ "Adjusting the temperature setpoint" on page 10

■ "Resetting the unit" on page 10

Setting the language

If desired, the operating language can be changed to any of the following languages: English, German, French, Spanish or Italian.

1 Enter the Å usersettings menu. Refer to chapter "How to enter

a menu" on page 8.

2 Go to the Language submenu of the Å usersettings menu using

the ﬁ and Ì keys and press the ‡ key to enter.

3 Press ‡ to change the operating language until the desired

language is active. The controller is factory set to English.

Switching the unit on

1 Press the œ key on the controller.

NOTE

Depending on whether or not a remote ON/OFF switch has been conﬁgured (refer to the installation manual), the following conditions may occur. When no remote ON/OFF switch is conﬁgured, the LED inside the œ key lights up and an initialization cycle is started. Once all the timers have reached zero, the unit starts up. When a remote ON/OFF switch is conﬁgured, the following table applies:

Local key

2 If the water chiller does not start after a few minutes, refer to

"Troubleshooting" on page 19.

If the password protection is set to ON, the correct password has to be given before any further action is possible.

Remote

ON/OFF switch

ON ON ON ON

ON OFF OFF Flashing OFF ON OFF OFF OFF OFF OFF OFF

Unit

œ LED

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 10

Switching the unit off

If no remote on/off switch is conﬁgured:

Press the œ key on the controller. The LED inside the œ key goes out.

If a remote on/off switch is conﬁgured:

Press the œ key on the controller or switch the unit off using the remote on/off switch. The LED inside the œ key goes out in the ﬁrst case and starts blinking in the second case.

NOTE

Also consult "Customization in the service menu" chapter "Setting of the changeable inputs and outputs" in the installation manual.

Switching units ON/OFF in a DICN system

If the œ key is pressed on a unit with status other units with status

NORMAL

STANDBY

If the œ key is pressed on a unit with status only this unit will be ON or OFF.

NOTE

When a remote ON/OFF switch is conﬁgured, the remote ON/OFF contact for all units with status

NORMAL

STANDBY

of a DICN network is the contact

connected to the master unit. For units with status

remote contact is the contact connected to this unit.

NOTE

If the user wants 1 unit to operate on his command only, this unit is to be set to

It is recommended not to select the master unit for this purpose. Even if the status of the master is set to

DISCONNECT ON/OFF

connected to the master which will switch ON/OFF the other units in

NORMAL

therefore never be possible to only switch the master unit OFF remotely.

Switching OFF the master unit only, should in this case be done by the local ON/OFF key on the master unit.

NORMAL

STANDBY

will be ON or OFF.

DISCONNECT ON/OFF

, the

, it will still be the contact

STANDBY

mode. It would

, all

Consulting actual operational information

1 Enter the readout menu. Refer to the chapter "How to enter a

menu" on page 8. The controller automatically shows the ﬁrst screen of the

readout menu which provides the following information:

_v¶¡ … ≤0U4 ∞11 ∞12 ≠H 012$0¢ ∞21 ∞22 ≠H

• ¶ cooling mode

•

§ heating mode ≠ fan (H high or L low)

•

¡ low noise mode activated (only available when option

•

… pump on

•

…1/2 in case of dual pump control: pump 1/2 on

•

∞11/12 circuit 1 compressor 1/2 on

•

∞21/22 circuit 2 compressor 1/2 on

•

≤ alarm and last occured malfunction code (

•

13$6¢ actual temperature (inlet or outlet temperature

•

12$0¢ temperature setpoint (inlet or outlet temperature

013$6¢

OPIF is installed)

example)

depending on active mode)

0U4

2 Press the Ì key to enter the next screen of the readout menu.

•

MANUAL MODE

manual/automatic control mode operation. If the automatic control mode is selected, the controller will indicate the active temperature setpoint. Depending on the status of the remote contact, setpoint one or setpoint two is active.

INL WATER

•

OUTL WATER

•

AMBIENT

NOTE

For a DICN system, the

WATER

COOL INLSP1/2

: actual inlet water temperature.

: actual outlet water temperature.

: actual ambient temperature.

COOL OUTLSP1/2

INLET WATER

values are the values of the individual units, not of the system. Temperatures of the system can be consulted in the ﬁrst screen of the network menu.

3 Press the Ì key to enter the next screen of the readout menu.

The

TEMPERATURE

screen of the readout menu provides information concerning the discharge temperature of the compressors (

4 Press the Ì key to enter the next screen of the readout menu.

The C1/

C11

and

C12/C21

C2 TEMP. READOUT

and

screen of the readout menu

C22

provides information concerning the refrigerant temperature

REFR

) of circuit 1/circuit 2.

(

5 Press the Ì key to enter the next screen of the readout menu.

The

ACT. PRESSURES

screen of the readout menu provides

information concerning the actual pressures of circuit.

■

HP1/2

: high pressure of the refrigerant in circuit 1/2. The ﬁrst number stands for the pressure in bar, the second number stands for the bubble point saturation temperature in degrees Celsius.

■

LP1/2

: low pressure of the refrigerant in circuit 1/2. The ﬁrst number stands for the pressure in bar, the second number stands for the dew point saturation temperature in degrees Celsius.

■

LOWNOISE

: at the bottom of the ﬁrst screen, the status of the

lownoise setting is shown (Y=active or N=not active).

6 Press the Ì key to enter the next screen of the readout menu.

The

UNIT STATUS

screen of the readout menu provides

information concerning the status of the different circuits.

•

C11

and

C12

: actual status of circuit 1 (ON or

•

C21

and

C22

: actual status of circuit 2 (ON or

When the unit is on and a circuit is

OFF

, the following status

information may appear.

•

SAFETY ACT.

(refer to "Troubleshooting" on page 19).

•

FREEZEUP DIS

disable function.

•

FREEZEUP PR

•

HP SETBACK

•

MIN.RUN.TIM

active.

•

LIMIT

: the compressor is limited by the limitation function.

•

STANDBY DICN

stand by mode because there is sufﬁcient current capacity to maintain set point.

UNIT OFF

•

AREC INLET

water temperature has not risen enough compared to previous switch off of the compressor.

FREE COOLING

•

TIMER BUSY

is not zero (refer to "Timers menu Ó" on page 12).

•

PUMPLEAD TIM

as the pump lead timer is counting down.

NO FLOW

• mode.

•

NO PRIORITY

no priority. Refer to "Deﬁning the lead-lag settings" on page 15 for adjusting the priority.

: one of the circuit safety devices is activated

: the compressor is disabled by the freeze-up

: freeze-up prevention is active.

: high pressure setback is active.

: minimum running time of the compressor is

: when in a DICN conﬁguration, the unit is in

: the unit is switched off.

: the compressor will not start up when the inlet

: free cooling mode is active

: the actual value of one of the compressor timers

: the compressor will wait to start up for as long

: there is no ﬂow after pumplead, the unit is in stand-by

: This compressor will not start up because it has

and

OFF OFF

OUTLET

). ).

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 11

•

CAN STARTUP

cooling load is needed.

• When none of the above mentioned messages appears, no special functions are active and the compressor is running.

: the circuit is ready to start up when extra

The preceding messages are written down in order of priority. The

UNIT CAPACITY

is written down on the bottom of the ﬁrst

screen.

7 Press the Ì key to enter the next screen of the readout menu.

The

EXTRA READOUT

screens of the readout menu are

providing the following information:

•

CURRENT

OP57 is installed)

•

VOLTAGE

•

RH11/12/21/22

•

CS11/12/21/22

•

RHP1/2

: actual current, measured in Ampere (A) (only when

: actual voltage (V) (only when OP57 is installed)

: actual running hours (h) : number of compressor start-ups

: actual running hours (h) of the pump 1 or 2

8 Press the ﬁ key to return to the other readout menus.

Adjusting the temperature setpoint

The unit provides deﬁnition and selection of four independent temperature setpoints. Two setpoints are reserved for inlet control, the other two are reserved for outlet control.

■

COOL. INLSP1

■

COOL. INLSP2

■

COOL. OUTSP1

■

COOL. OUTSP2

The selection between setpoint 1 and 2 is done by a remote dual setpoint switch (to be installed by the customer). The actual active setpoint can be consulted in the readout menu.

NOTE

The customer is also allowed to deﬁne a setpoint in function of an analogue input.

NOTE

Refer to "Customization in the service menu" chapter "Setting of the changeable inputs and outputs" in the installation manual

If the manual control mode is selected (refer to "Usersettings menu Å" on page 11), none of the above-mentioned setpoints will be active.

To adjust a setpoint, proceed as follows:

1 Enter the setpoints menu. Refer to the chapter "How to enter a

menu" on page 8. If the user password is disabled for setpoint modiﬁcations (refer

to "Usersettings menu Å" on page 11), the controller will immediately enter the setpoints menu. If the user password is enabled for setpoint modiﬁcations, enter the correct code using the ﬁ and Ì keys (refer to "User password menu Æ" on page 14). Press ‡ to conﬁrm the password and to enter the setpoints menu.

2 Select the setpoint to be adjusted using the ‡ key.

A setpoint is selected when the cursor is blinking behind the setpoint's name.

" sign indicates the actual active temperature setpoint.

The "

3 Press the ﬁ and Ì keys to adjust the temperature setting.

The default, limit and step values for the cooling temperature setpoints are:

default value

limit values

step value

(*) For glycol treated units with OPZH installed, the lower limit of the cooling

temperature setpoint can be adapted by changing the minimum operating temperature in the service menu (refer to the installation manual).

: inlet water temperature, setpoint 1, : inlet water temperature, setpoint 2. : outlet water temperature, setpoint 1, : outlet water temperature, setpoint 2.

COOLING INLET SETP COOLING OUTLET SETP

12¢ 7¢

(*)

7 ➞ 23¢ 4 ➞ 20¢

0$1¢ 0$1¢

4 Press ‡ to save the adjusted temperature setpoint.

When the setting has been conﬁrmed, the cursor switches to the next setpoint.

5 To adjust other setpoints, repeat from step 2.

NOTE

When a setpoint on a unit in a DICN system is set, this setpoint will be transferred to all other units.

NOTE

Also consult "Deﬁning the ﬂoating setpoint settings" on page 15.

Resetting the unit

The units are equipped with three kinds of safety devices: unit safeties, circuit safeties and network safeties.

When a unit or circuit safety occurs, the compressor is shut down. The safeties menu will indicate which safety is activated. The

STATUS ACTIVE

screen of the readout menu will indicate

OFF - SAFETY

. The red LED inside the π key lights up and the buzzer

inside the controller is activated. When a network safety occurs in a DICN conﬁguration, the slaves not

detected by the network will function as stand alone units.

■ If a slave unit can not be found by the network, the red light inside the π key of the master lights up and the buzzer inside the control is activated.

■ If the master can not be found by the network, the red light inside the π key of all the slaves light up and the buzzer inside their controls are activated. All units will work as stand alone units.

If the unit has been shut down due to a power failure, it will carry out an autoreset and restart automatically when the electrical power is restored.

To reset the unit, proceed as follows:

1 Press the π key to acknowledge the alarm.

The buzzer is deactivated. The controller automatically switches to the corresponding screen of the safeties menu: unit safety or circuit safety or network safety.

2 Find the cause of shutdown and correct.

Refer to "Listing activated safeties and checking the unit status" on page 17 and "Troubleshooting" on page 19. When a safety can be reset, the LED under the π key starts blinking.

3 Press the π key to reset the safeties that are no longer active.

If required, enter the

PASSWORD

. (Refer to the installation manual "Setting the

USER PASSWORD

or the

password for safety reset".) Once all safety devices are deactivated and reset, the LED under the π key goes out. If one of the safeties is still active, the LED under the π key goes on again. In this case, return to step 2.

4 It will only be necessary to switch the œ key on again if a unit

safety occurs.

If the user shuts down the power supply in order to repair a safety, the safety will automatically be reset after power-up.

NOTE

The history information, i.e. the number of times a unit safety or a circuit safety occurred and the unit status at the moment of shutdown, can be checked by means of the history menu.

UNIT

SERVICE

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 12

Advanced features of the digital controller

This chapter gives an overview and a brief functional description of the screens provided by the different menus. In the following chapter, you will ﬁnd how you can set up and conﬁgure the unit using the various menu functions.

All menus are directly accessible using the corresponding key on the digital controller or through the main menu (refer to "How to enter a menu" on page 8). The down arrow v on the display indicates that you can go to the next screen of the current menu using the Ì key. The up arrow ^ on the display indicates that you can go to the previous screen of the current menu using the ﬁ key. If ÷ is displayed, this indicates that you can either return to the previous screen or can go to the next screen.

Readout menu ª

_v¶ … ≤0U4 ∞11 ∞12 ≠H 012$0¢ ∞21 ∞22 ≠H

_÷COOL. INLSP1:012$0¢ INLET WATER:013$6¢ OUTLET WATER:007$0¢ AMBIENT:006$5¢

_÷ C1 TEMP.READOUT C11 DISCHARGE:010$1¢ C12 DISCHARGE:010$5¢

_÷ C2 TEMP.READOUT C21 DISCHARGE:010$1¢ C22 DISCHARGE:010$5¢

_÷ C1 TEMP.READOUT C1 REFR:000$0¢

_÷ C2 TEMP.READOUT C2 REFR:000$0¢

_÷ C1 ACT. PRESSURES HP1:019$0b = 050$8¢ LP1:000$4b = -05$2¢ FAN1:OFF

_÷ C2 ACT. PRESSURES HP2:019$0b = 050$8¢ LP2:000$4b = -05$2¢ FAN2:OFF

_÷ UNIT STATUS C11:OFF SAFETY ACT. C12:OFF SAFETY ACT. UNIT CAPACITY:000%

_÷ UNIT STATUS C21:OFF SAFETY ACT. C22:OFF SAFETY ACT.

013$6¢

To consult actual operational information about the status of the pump, the compressor and the fans and the temperature setpoint (depending on active mode).

To consult actual operational information about the control mode, the inlet and outlet water temperature. Note that for a DICN system, the

INLET WATER

and

OUTLET WATER

values are the values of the individual units, not of the system. Temperatures of the system can be consulted in the ﬁrst screen of the network menu.

To consult information about the discharge temperature of circuit 1.

To consult information about the discharge temperature of circuit 2 (only for EWAQ130~260).

To consult information about the temperature of the refrigerant of circuit 1.

To consult information about the temperature of the refrigerant of circuit 2 (only for EWAQ130~260).

To consult information about the actual pressures and the fans of circuit 1 and to check if the fans are running in lownoise mode.

To consult information about the actual pressures and the fans of circuit 2 (only for EWAQ130~260).

To consult information about the unit status of circuit 1 and the capacity of the unit.

To consult information about the unit status of circuit 2 (only for EWAQ130~260).

_÷ EXTRA READOUT C12RH:00000hCS:00000

To consult actual operational information about the total running hours and the number of compressor stops of circuit 1 (second screen).

_÷ EXTRA READOUT C21RH:00000hCS:00000

To consult actual operational information about the total running hours and the number of compressor stops of circuit 2 (ﬁrst screen) (only for EWAQ130~260).

_÷ EXTRA READOUT C22RH:00000hCS:00000

To consult actual operational information about the total running hours and the number of compressor stops of circuit 2 (second screen) (only for EWAQ130~260).

Setpoints menu ∑

Depending upon the settings in the "advanced" usersettings menu, the "setpoints" menu can either be entered directly or by means of the user password.

> COOL. INLSP1:012$0¢ COOL. INLSP2:012$0¢ COOL. OUTSP1:007$0¢ COOL. OUTSP2:007$0¢

To deﬁne the temperature setpoints.

Usersettings menu Å

The "usersettings" menu, protected by the user password, allows a full customization of the units.

USERSETTINGS MENU >THERMOSTAT COMPRESSOR FAN PUMP FLOATING SETPOINT LANGUAGE TIME AND DATE FREE COOLING DICN ADVANCED DEFROST SERVICE MENU

THERMOSTAT

_v THERMOSTAT MODE:INL WATER LOADUP:300s-DWN:030s

_^ MANUAL SETTINGS C11:OFF C12:OFF C21:OFF C22:OFF F1*:OFF F2*:OFF

COMPRESSOR

_v COMPR.LEAD-LAG MODE:PRIORITY PRIORITY: C11>C12>C21>C22

_^ COMPR.CAP.LIMIT MODE:LIMIT SETTING SET: C11:OFF C12:OFF C21:OFF C22:OFF

FAN

_ FAN FORCED ON IF UNIT IS OFF THEN ALL FANS:OFF

Use the through the menu and press the to enter the submenu of your choice.

To deﬁne the thermostat settings.

To deﬁne the settings for manual control.

To deﬁne the compressor lead-lag settings.

To deﬁne the compressor capacity limitation settings.

To deﬁne the action on all the fans in case the unit is off.

ﬁ and Ì keys to scroll

‡ key

_÷ EXTRA READOUT CURRENT:055A VOLTAGE:023V

_÷ EXTRA READOUT C11RH:00000hCS:00000

RHP1:00001hP2:00000h

Operation manual

To consult actual operational information about the current (Ampere) and voltage of the unit.

To consult actual operational information about the total running hours and the number of compressor stops of circuit 1 (ﬁrst screen) and total running hours of the pumps.

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 13

PUMP

_v PUMPCONTROL PUMPLEADTIME :020s PUMPLAGTIME :060s DAILY ON:N AT:12h00

_^ DUAL PUMP MODE:AUTO ROTATION OFFSET ON RH :048h

FLOATING SETPOINT

_ FLOATING SETPOINT MODE:AMBIENT MAXPOS:03$0¢ NEG:00$0¢ RF:020$0¢ SLOPE:006$0¢

LANGUAGE

_ LANGUAGE PRESS ENTER TO CHANGE LANGUAGE: ENGLISH

TIME AND DATE

_ TIME AND DATE TIME: 22h35 DATE FORMAT:DD/MM/YY DATE: MON 20/03/06

FREE COOLING

_ FREE COOLING MODE:AMBIENT SP: 05$0¢ DIF:01$0¢ PUMP:ON LEAD:000s

DICN

_÷ MASTER SETTINGS MODE:NORMAL OFFSET:0000h PUMP ON IF:UNIT ON

ADVANCED

_v ADVANCED PASSWORD NEEDED FOR: SETPOINT MENU:Y UNIT ON/OFF:Y

_^ ADVANCED MAIN MENU:GRAPHIC LOGOUT TIMER :05min BUZZER IF SAFETY:YES

To deﬁne the pump control settings.

To deﬁne the dual pump settings.

To deﬁne the ﬂoating setpoint.

To deﬁne the controller display language.

To set the time and date of the system.

To deﬁne the free cooling.

The controller displays the name of the

MASTER, SLAVE1

unit:

...

SLAVE3

This name is automatically assigned depending on the set hardware address. Refer to "Setting the addresses" in "Connection and setup of a DICN system" in the installation manual.

To deﬁne whether or not a password is needed to enter the setpoints menu and for switching the unit on and off.

To deﬁne the outlook of the main menu, to set the logout timer and to deﬁne whether or not the buzzer is to be activated when errors occur.

Timers menu Ó

_v GENERAL TIMERS LOADUP:000s-DWN:000s PUMPLEAD :000s FLOWSTOP :00s

_÷ COMPRESSOR TIMERS GRD11:000s 12:000s AREC11:000s 12:000s M.RT11:000s 12:000s

_^ COMPRESSOR TIMERS GRD21:000s 22:000s AREC21:000s 22:000s M.RT21:000s 22:000s

To check the actual value of the general software timer.

To check the actual value of the compressor timers of circuit 1.

To check the actual value of the compressor timers of circuit 2 (only for EWAQ130~260).

Safety menu π

The "safeties" menu provides useful information for trouble shooting purposes. The following screens contain basic information.

_v UNIT SAFETY 0F0:EMERGENCY STOP

_v CIRCUIT1 SAFETY 1U1:REV PHASE PROT

_v CIRCUIT2 SAFETY 1U1:REV PHASE PROT

_v NETWORK SAFETY 0U4:PCB COMM.PROBLEM

_v UNIT WARNING 0AE:FLOW HAS STOPPED

Along with the basic information, more detailed information screens can be consulted while the history menu is active. Press the ‡ key. Screens similar to the following will appear. Additionally the number of safeties that already occurred, can be consulted on the ﬁrst line of the history screens.

_÷ UNIT HISTORY:002 0CA:OUT SENSOR ERR 22h33m00s 23/03/06 COOL INLSP1:012$0¢

To consult information about the unit safety which caused the shutdown.

To consult information about the circuit 1 safety which caused the shutdown.

To consult information about the circuit 2 safety which caused the shutdown (only for EWAQ130~260).

To consult information about the network safety which caused the shutdown.

To consult information about the unit warning which caused the shutdown.

To check the time at the moment of the unit shutdown and to check which was the evaporator inlet water temperature setpoint.

_^ ADVANCED BACKLIGHT TIME:05min GRAPHIC READOUT:YES

To deﬁne the backlight time and to deﬁne whether or not graphic readout is activated.

DEFROST

This submenu is not available for EWAQ units.

SERVICE MENU

ENTER SERVICE

PASSWORD: 0000 TO LOGIN

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

To enter the service menu (only a qualiﬁed installer is allowed to access this menu).

_÷ UNIT HISTORY:002 INLET WATER:012$0¢ OUTLET WATER:007$0¢ AMBIENT:006$5¢

_÷ UNIT HISTORY:002 C11 DISCHARGE:010$1¢ C12 DISCHARGE:010$5¢

_÷ UNIT HISTORY:002 C21 DISCHARGE:010$1¢ C22 DISCHARGE:010$5¢

_÷ UNIT HISTORY:002 C1 REFR:000$0¢

_÷ UNIT HISTORY:002 C2 REFR:000$0¢

_÷ UNIT HISTORY:002 HP1:019$0b = 050$0¢ LP1:019$0b = -05$2¢ LOWNOISE:N FAN1:OFF

To check which were the evaporator inlet, outlet water and ambient temperature at the moment of shutdown.

To check which was the discharge temperature of the circuits of circuit 1 at the moment of shutdown.

To check which was the discharge temperature of the circuits of circuit 2 at the moment of shutdown (only for EWAQ130~260).

To check which was the temperature of the refrigerant of circuit 1 at the moment of shutdown.

To check which was the temperature of the refrigerant of circuit 2 at the moment of shutdown (only for EWAQ130~260).

To check which were the pressures of circuit 1 and the status of the fans at the moment of shutdown.

Operation manual

Page 14

_÷ UNIT HISTORY:002 HP2:019$0b = 050$0¢ LP2:019$0b = -05$2¢ FAN2:OFF

_÷ UNIT HISTORY:002 C11:OFF SAFETY ACT. C12:OFF SAFETY ACT. UNITCAPACITY:000%

_÷ UNIT HISTORY:002 C21:OFF SAFETY ACT. C22:OFF SAFETY ACT.

_÷ UNIT HISTORY:002 CURRENT:055A VOLTAGE:023V

_÷ UNIT HISTORY:002 C11RH:00000hCS:00000

RHP1:00000hP2:00000h

_÷ UNIT HISTORY:002 C12RH:00000hCS:00000

_÷ UNIT HISTORY:002 C21RH:00000hCS:00000

_÷ UNIT HISTORY:002 C22RH:00000hCS:00000

_÷ UNIT HISTORY:002 AI1 NONE AI2 NONE

_÷ UNIT HISTORY:002 AI3 NONE AI4 NONE

To check which were the pressures of of circuit 2 and the status of the fans at the moment of shutdown (only for EWAQ130~260).

To check which was the status of the compressors and the unit capacity of circuit 1 at the moment of shutdown.

To check which was the status of the compressors and the unit capacity of circuit 2 at the moment of shutdown (only for EWAQ130~260).

To check which was the current (Ampere) and voltage of the unit at the moment of shutdown.

To check which were the total amount of running hours of the compressor and number of compressor stops of circuit 1 and of the pumps at the moment of shutdown (ﬁrst screen).

To check which were the total amount of running hours of the compressor and number of compressor stops of circuit 1 at the moment of shutdown (second screen).

To check which were the total amount of running hours of the compressor and number of compressor stops of circuit 2 at the moment of shutdown (ﬁrst screen) (only for EWAQ130~260).

To check which were the total amount of running hours of the compressor and number of compressor stops of circuit 2 at the moment of shutdown (second screen) (only for EWAQ130~260).

To check the changeable analogue input status at the moment of shutdown (ﬁrst screen).

To check the changeable analogue input status at the moment of shutdown (second screen).

Info menu ™

_v TIME INFO TIME: 22h05 DATE: WED 24/01/07

_÷ UNIT INFO UNIT:AW-CO-260 C:SCL CIR:2 EVAP:1 COILC:2 EEV:P REF:R410A

_÷ UNIT INFO FAN:ST VA:Y 2PUMP:Y HEATERTAPE:Y FAN DO ST:2 DO INV:2

_^ SW INFO MAIN:SP1710_055 V2.0 EXT :SP1559_017 REM.:SP1734_011

To consult time and date information.

To consult additional information about the unit such as the unit type, number of circuits and evaporators and the refrigerant used.

To consult additional information about the unit such as the fan type, Volt Ampere option, if there is a second pump or heater tape present and the quantity of digital outputs that can possibly be used in case of non-inverter

fans (

) or inverter fans (

INV

To consult information about the controller's software version.

Input/output status menu Ÿ

The "input/output status" menu gives the status of all the digital inputs and outputs and the changeable digital inputs of the unit.

_v DIGITAL INPUTS EMERGENCY STOP :OK FLOWSWITCH:FLOW OK

_÷ DIG.INP/OUTPUTS HEATER TAPE:OFF PUMPINTERLOCK:CLOSED PUMP:ON

_÷ DIGITAL INPUTS C1 REV.PH.PROT. :OK C1 HIGH PR.SW. :OK INT.L C11:OK C12:OK

_÷ DIGITAL INPUTS C1 FAN OVERC.ST1:OK C1 FAN OVERC.ST2:OK C1 FAN OVERC.ST3:OK

_÷ DIGITAL INPUTS C2 REV.PH.PROT. :OK C2 HIGH PR.SW. :OK INT.L C21:OK C22:OK

To check whether or not the emergency stop device is active and if there is any water ﬂow to the evaporator.

To check the status of the heater tape and the state of the pump interlock and pump.

To check the status of the high pressure switch, the reverse phase protector and the overcurrent relay of circuit 1.

To check the fan overcurrent status of circuit 1.

To check the status of the high pressure switch, the reverse phase protector and the overcurrent relay of circuit 2 (only for EWAQ130~260).

History menu ‚

The "history" menu contains all the information concerning the latest shutdowns. The structure of those menus is identical to the structure of the safeties menu. Whenever a failure is solved and the operator performs a reset, the concerning data from the safeties menu is copied into the history menu.

Additionally, the number of safeties that has already occurred, can be consulted on the ﬁrst line of the history screens.

Operation manual

_÷ DIGITAL INPUTS C2 FAN OVERC.ST1:OK C2 FAN OVERC.ST2:OK C2 FAN OVERC.ST3:OK

_÷ DIGITAL INPUTS C11:ON C12:ON C21:ON C22:ON

_÷ FAN INP/OUTPUTS C1 FANSTEP 1:CLOSED C1 FANSTEP 2:CLOSED C1 FANSTEP 3:CLOSED

_÷ FAN INP/OUTPUTS C2 FANSTEP 1:CLOSED C2 FANSTEP 2:CLOSED C2 FANSTEP 3:CLOSED

_÷CHANG. DIG. INPUTS DI1 NONE DI2 NONE DI3 NONE

To check the fan overcurrent status of circuit 2 (only for EWAQ130~260).

To check the status of the compressors 11/12/21/22.

To check the status of the fanspeed relays of circuit 1.

To check the status of the fanspeed relays of circuit 2 (only for EWAQ130~260).

To check the status of the changeable digital inputs. (ﬁrst screen) Note that for a unit in a DICN system, the inputs apply to this unit. It will be the remote input on the master unit however, that will be determining for the operation of the unit.

Packaged air-cooled water chillers

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Page 15

_÷CHANG. DIG. INPUTS DI4 NONE DO1 SAFETY+W.(NO) :O DO2 GEN.OPERATION :O

_÷CHANG. INP/OUTPUTS DO3 NONE (OPEN) DO4 NONE (OPEN) DO5 NONE (OPEN)

_÷CHANG. INP/OUTPUTS DO6 NONE (OPEN) AI1 NONE AI2 NONE

_÷CHANG. INP/OUTPUTS AI3 NONE AI4 NONE AO1 NONE

_^ COMMUNICATION RS232 ONLINE:N RS485 ONLINE:N DIII ONLINE:N

To check the status of the changeable digital inputs and outputs (second screen).

To check the status of the changeable digital outputs (third screen).

To check the status of the changeable digital outputs and analogue inputs (fourth screen).

To check the status of the changeable analogue inputs and outputs (ﬁfth screen)

To overview which communication lines are active.

Tasks of the usersettings menu

Entering the usersettings menu

The usersettings menu is protected by the user password, a 4-digit number between

1 Enter the Å

"How to enter a menu" on page 8). The controller will request the password.

2 Enter the correct password using the ﬁ and Ì keys and press

‡ for each digit.

3 Press ‡ on the last digit to conﬁrm the password and to enter

the usersettings menu. The controller automatically shows the submenu screen.

To deﬁne settings of a certain function:

1 Go to the appropriate submenu of the usersettings menu using

the ﬁ and Ì keys.

0000

and

9999

USERSETTINGS MENU

. (Refer to the chapter

User password menu Æ

ENTER PASSWORD

PASSWORD: 0000 TO LOGIN

_v LOGIN/LOGOUT MENU LOGIN STATUS:USER

LOGOUT? NO

_^ LOGIN/LOGOUT MENU CHANGE PASSWORD NEW PASSWORD: 0000 CONFIRM: 0000

To change the user password.

To deﬁne the user login and logout status.

To change the login/logout password.

Network menu ∆

The "network" menu (only available in case DICN is installed) provides useful information regarding the network.

_v NETWORK COOL. INLSP1:012$0¢ INLET WATER:013$6¢ OUTLET WATER:007$0¢

_^M:NORMAL CAP:000% SL1:NORMAL CAP:000% SL2:NORMAL CAP:000% SL3:NORMAL CAP:000%

To consult the temperature setpoint, the common entering water temperature (entering water temperature of the master unit).

The status screen of the network menu shows the condition of the master unit

) and slave units (

(

SL1

...

SL3

Cool/heat menu Í

This menu is not available for EWAQ units.

2 Press the ‡ key to enter the submenu of your choice.

3 Go to the appropriate screen using the ﬁ and Ì keys. If there

is only one screen, the ﬁ and Ì keys have no effect.

4 Press the ‡ key to move the cursor to the ﬁrst parameter which

can now be modiﬁed.

5 Select the appropriate setting using the ﬁ and Ì keys.

6 Press ‡ to conﬁrm the selection.

When the selection has been conﬁrmed, the cursor switches to the next parameter which can now be modiﬁed.

7 Repeat instruction 6 to modify the other parameters.

8 After the last parameter the cursor is switched back to the

starting position and continue from instruction 3 onwards.

9 Press the ƒ key to return to the usersettings menu and

continue from instruction 1 onwards.

Submenu: Thermostat

Deﬁning the thermostat settings

When inlet or outlet control mode is selected, the unit uses a thermostat function to control the cooling capacity. However, the thermostat parameters are not ﬁxed and can be modiﬁed.

The default, limit and step values for the thermostat parameters are shown in "Annex I" on page 25.

NOTE

■ If changed on one of the units in a DICN conﬁguration, this setting is transferred to all other units in the network.

■ A functional diagram showing the thermostat parameters can be found in "Annex I" on page 25.

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Deﬁning and activating the control mode

The unit is equipped with a thermostat which controls the cooling capacity of the unit. Select the appropriate mode:

■

MANUAL CONTROL

:manual control mode: the operator controls

the capacity himself by setting:

•

C11/12/21/22

(capacity step in manual mode): OFF or ON of

compressors 11/12/21/22.

•

F1*, F2*

(air ﬂow in manual mode): off, low, medium or high of

circuit 1/2.

■

INL WATER

: inlet control mode: uses the entering water

temperature to control the capacity of the unit.

■

OUTL WATER

: outlet control mode: uses the leaving water

temperature to control the capacity of the unit.

Operation manual

Page 16

NOTE

To activate manual control mode, select

CONTROL

as present mode. To deactivate the manual

control mode, select an other mode as present mode. For units in a DICN conﬁguration:

When changing the control mode on one of the units, it is automatically transferred to all other units.

Manual control mode however can only be selected on

NOTE

units with status

The OUTLET mode is not available for DICN systems.

DISCONNECT ON/OFF

Submenu: Compressor

Deﬁning the lead-lag settings

In the

COMPR.LEAD-LAG

screen select the appropriate mode and

deﬁne the compressor lead-lag settings.

■ MODE

•

AUTO

: the priority is depending on the running hours of the

separate compressors.

•

PRIORITY: C11>C12>C21>C22

C11 has the highest priority to startup while C22 has the lowest priority.

the setting in this example

Deﬁning the capacity limitation settings

In the

COMPR.CAP.LIMIT

limitation settings can be conﬁgured. A capacity limitation can be activated:

■

MODE

•

NOT ACTIVE

•

CHANG.DIG.INP.:

capacity limitation.

screen up to 4 possible capacity

: the capacity limitation is not active.

when a changeable input is conﬁgured as

MANUAL

Submenu: Pump

Deﬁning the pump control settings

The

PUMPCONTROL

screen of the usersettings menu allows the user

to deﬁne the pump-leadtime and pump-lagtime.

■

PUMPLEADTIME

run before the unit (or the compressor in case

COMPR ON

■

PUMPLAGTIME

running after the unit (or the compressor in case

COMPR ON

: used to deﬁne the time that the pump must

PUMP ON IF:

is selected in a DICN conﬁguration) can start up.

: used to deﬁne the time that the pump keeps

PUMP ON IF:

is selected in a DICN conﬁguration) has been

stopped.

■

DAILY ON

: select either Y (yes) or N (no). When Y is selected, deﬁne the starting time (24 hour time scale). This means that during that time, the pump will run for about 5 seconds, even when the unit is switched off.

Deﬁning dual pump control

The

DUAL PUMP

deﬁne the steering of two pumps (for this to be possible a changeable digital output has to be conﬁgured for a second pump in the service menu). Refer to the installation manual.

■

MODE

two pumps. When automatic rotation is chosen the offset on running hours also has to be entered.

•

AUTO ROTATION

offset on RH.

•

PUMP 1>PUMP 2

•

PUMP 2>PUMP 1

■

OFFSET ON RH

between the two pumps. Used to switch over between pumps when they work in automatic rotation mode.

Submenu: Floating setpoint

screen of the usersettings menu allows the user to

: used to deﬁne which kind of control will be used for the

: pump 1 and pump 2 will alternate to the

: pump 1 will always start up ﬁrst. : pump 2 will always start up ﬁrst.

: used to deﬁne the offset in running hours

NOTE

Refer to "Customization in the service menu", chapter "Setting of the changeable digital inputs and outputs" in the installation manual.

•

LIMIT 25%/50%/75%/SET

■ in case of

CHANG.DIG.INP.

compressor must be deﬁned (

■

OFF

: These compressors will always be switched off

: to activate capacity limitation.

LIMIT SET

C11/12/21/ 22

mode, each

■ON: These compressors will still be used by the thermostat

according to the required load.

Submenu: Fan

Deﬁning the fan low noise settings

The

FAN LOW NOISE

screen is only available when the option inverter fans is installed (OPIF). Refer to the manual delivered with the option.

Fan forced on settings

Allow to run the fans even when the unit is switched off.

■

OFF

: the fans will not be activated.

■

: the fans will be forced to run.

■

CH.DIG.INP.

the changeable digital input.

: the fans will run, depending on the settings of

Deﬁning the ﬂoating setpoint settings

Setpoint signal is renamed as "ﬂoating setpoint based on changeable analogue input".

The

FLOATING SETPOINT

the active setpoint to be modiﬁed in function of the ambient temperature. The source and settings of the ﬂoating setpoint can be conﬁgured by the user.

MODE

■

: used to deﬁne the mode of the ﬂoating setpoint.

•

NOT ACTIVE

•

AMBIENT

and altered accordingly. Settings:

•

CH. AI SLOPE NTC

changeable analogue input (NTC type) and altered accordingly. Settings:

•

CH. AI SLOPE V-A

changeable analogue input (V-A type) and altered accordingly. Settings:

•

CH.AI MAX VALUE

changeable analogue input (V-A type) and altered accordingly. Setting:

NOTE

: ﬂoating setpoint is based on the ambient temperature

MAXPOS, NEG, RF

MAXIMUM VALUE

A functional diagram showing the ﬂoating setpoint working can be found in "Annex II" on page 26.

screen of the usersettings menu allows

: ﬂoating setpoint is not activated.

SLOPE

: ﬂoating setpoint is based on the

SLOPE

: ﬂoating setpoint is based on the

SLOPE

: ﬂoating setpoint is based on the

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 17

Submenu: Language

Deﬁning the language

This screen allows the user to deﬁne the language of the displayed information of the controller (on the ﬁrst screen). (Push the ‡ button repeatedly to change the operating language).

Submenu: Time and date

Deﬁning the time and date

The

TIME AND DATE

screen of the usersettings menu allows the

user to deﬁne the time and date.

■

TIME

: used to deﬁne the present time.

■

DATE FORMAT

■

DATE

: select the name of the present day and deﬁne the

present date according to the setting of the

= number of day (01~31),

= number of month (01~12)

= the last 2 numbers of the year (2006 = 06).

: used to deﬁne the format of the date.

DATE FORMAT

Submenu: Free cooling

Deﬁning free cooling

The

FREE COOLING

user to control a 3-way water valve when the unit is in free cooling state. To make this possible a changeable digital input or output has to be conﬁgured for free cooling in the service menu. (Refer to the installation manual.)

■

MODE

: used to deﬁne the free cooling mode.

•

NOT ACTIVE

•

CHDI

•

AMBIENT

•

INLET-AMBIENT

between inlet water temperature and ambient temperature.

■

: setting of the free cooling setpoint.

■

DIF

: setting of the free cooling difference.

■ PUMP

■ON: pump will be on when free cooling mode is active

■

OFF

: pump will be off when free cooling mode is active

■

LEAD

: time that the pump will be running before the compressor

will start operating.

NOTE

A functional diagram showing the free cooling working can be found in "Annex III" on page 26.

screen of the usersettings menu allows the

: free cooling is not active.

: changeable digital input will activate the free cooling mode

: free cooling is based on ambient temperature.

: free cooling is based on the difference

•

STANDBY

function is then also similar to a unit deﬁned as unit however, will only come into operation if: another unit is in alarm another unit is in the setpoint is not reached when all other units have been running on full capacity for some time If more than one unit is deﬁned as will be really standby. The unit which is really standby will be decided by the number of running hours.

DISCONNECT ON/OFF

• other units ON or OFF. possible. If the unit is put to it will be controlled by the DICN network as a

NOTE

: The unit is considered as a

DISCONNECT ON/OFF

: Putting this unit ON or OFF will not put

MANUAL CONTROL

INLET

OUTLET

Put a unit to

DISCONNECT ON/OFF

NORMAL

unit and its

NORMAL

mode

STANDBY

, only 1 of the units

on such a unit is

mode, and the unit is ON,

NORMAL

when servicing

the machine. In this case it is possible to switch ON or OFF this unit without switching ON or OFF the other units of the network.

It is also possible then to operate the unit in

CONTROL

Put a unit to

DISCONNECT ON/OFF

continuously if

the operator wants to decide by himself when this unit must operate.

Note that in this case, it makes no sense to deﬁne

■

another unit of the network as a unit set continuously to

OFFSET

STANDBY NORMAL

: The

unit will continuously be considered as a

unit.

OFFSET

STANDBY

DISCONNECT ON/OFF

time deﬁnes the target difference in

. Since there is

running hours between one unit and another unit with

OFFSET:0000h

. This value is important for maintenance purposes. The difference in setting among different units should be high enough as to avoid servicing of the units all at the same time. The lower and upper limits are 0 and

9000

respectively. The default value is 0 hours.

■

PUMP ON IF

chiller is on ( (

COMPR ON

When as long as the chiller is on. When

: Set if the pump must operate as long as the

UNIT ON

), or during compressor on condition only

UNIT ON

is selected, the pump output will remain closed

COMPR ON

is selected, the pump output will remain closed as long as the compressor is on. Also refer to the separate manual "Installation examples for a DICN conﬁguration".

NOTE

The settings on this screen of the network menu must be executed for all chillers connected to the system.

, but this

unit.

MANUAL

, the

hours

Submenu: DICN

Only available in case DICN (option kit EKACPG) is installed (refer to "Connection and setup of a DICN system" in the installation manual and the installation manual of the EKACPG kit).

Deﬁning the network settings

The

SETTINGS

the

MODE

pump must operate.

■

MODE DISCONN ON/OFF

•

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

screen of the network menu allows the user to set

of the unit, the

: Deﬁne the mode of the unit as

OFFSET

time and the condition when the

NORMAL, STANDBY

NORMAL

unloading is decided by the central control of the netwerk. Putting this unit ON or OFF will also put all other units ON or OFF, unless their status is Changing

SETTINGS CONTROL

activating the control mode" on page 14.

: The unit is controlled by the network. Loading and

DISCONNECT ON/OFF

CONTROL SETTINGS

to this unit, will apply to all other units.

on such a unit is not possible. Refer to "Deﬁning and

. (see further)

THERMOSTAT

MANUAL

Submenu: Advanced

Activating or deactivating the setpoints password and the unit on/off password

The ﬁrst to activate or deactivate the user password needed to change the temperature setpoint ( user does not have to enter the password each time he wants to change the setpoint.

The ﬁrst user to activate or deactivate the user password needed to switch the unit ON or OFF (

ADVANCED

NOTE

screen of the usersettings menu allows the user

SETPOINT MENU

). When deactivated, the

screen of the usersettings menu also allows the

UNIT ON/OFF

If changed on one of the units in a DICN conﬁguration, this setting is automatically transferred to all the other units in the network.

Operation manual

Page 18

Deﬁning controller settings

The second the user to deﬁne settings for the controller.

■

NOTE

Submenu: Defrost

This submenu is not available for EWAQ units.

Submenu: Service menu

Only a qualiﬁed installer is allowed to enter the service menu.

Tasks of the timers menu

ADVANCED

MAIN MENU

graphical symbols or to

screen of the usersettings menu also allows

: set to

GRAPHIC

to let the main menu show the

TEXT

to let the main menu show the

names of the menus.

LOGOUT TIMER

: set the time for automatic log out, between 01

and 30 minutes.

BUZZER IF SAFETY

: to activate or deactivate the buzzer

sound when an error should occur.

BACKLIGHT TIME

: to deﬁne the time (between 01 and 30 minutes) the light of the controller display will stay on after the last manipulation of the controller buttons.

GRAPHIC READOUT

: to deﬁne if the graphical representation of

the ﬁrst screen of the read out menu is present or not.

If changed on one of the units in a DICN conﬁguration, this setting is automatically transferred to all the other units in the network.

Checking the actual value of the software timers

As a protective measure and to ensure correct operation, the controller's software features several countdown timers:

■ LOADUP ( counting when a thermostat step change has occurred. During the countdown, the unit is not able to enter a higher thermostat step.

■ LOADDOWN ( counting when a thermostat step change has occurred. During the countdown, the unit will not be able to go to a lower thermostat step.

■ FLOWSTART ( water ﬂow through the evaporator is continuous and the unit is in standby. During the countdown, the unit cannot start up.

■ FLOWSTOP ( water ﬂow through the evaporator stops after the ﬂowstart timer has reached zero. If the water ﬂow has not restarted during the countdown, the unit will shut down.

■ PUMPLEAD ( starts counting whenever the unit is switched on. During the countdown, the unit cannot start up.

■ PUMPLAG ( starts counting whenever the unit is switched off. During the countdown, the pump keeps running.

■ GUARDTIMER ( when the compressor (circuit 1/2) has been shut down. During the countdown, the compressor cannot be restarted.

■ ANTIRECYCLING ( counting when the compressor (circuit 1/2) has started. During the countdown, the compressor cannot be restarted.

■ MINIMUM RUNNING TIME ( when the compressor has started. During the count down, the compressor will not be switched off by the thermostat function.

LOADUP

– refer to the thermostat parameters): starts

DWN

– refer to the thermostat parameters): starts

FLOWSTART

FLOWSTOP

PUMPLEAD

PUMPLAG

GRD11/12/21/22

– 15 sec): counts down when the

– 5 sec): starts counting when the

– refer to the pump control settings):

– 180 sec): starts counting

AREC11/12/21/22

M.RT

– 300 sec): starts

- 120 sec) starts counting

To check the actual value of the software timers, proceed as follows:

1 Enter the

TIMERS MENU

. (Refer to the chapter "How to enter a

menu" on page 8.) The controller displays the actual value of the

TIMERS

: the loadup timer, the loaddown timer, the ﬂowstart

GENERAL

timer, the ﬂowstop timer (when the unit is on and the ﬂowstart timer has reached zero), the pumplead timer and the pumplag timer.

2 Press the Ì key to check the compressor timers.

The controller shows the actual value of the

TIMERS

: the guard timers (one per circuit) and the antirecycling

COMPRESSOR

timers (one per circuit).

Tasks of the safety menu

Listing activated safeties and checking the unit status

If the alarm buzzer is activated and the user presses the π key, the controller automatically enters the safeties menu.

All active safeties are displayed:

NETWORK SAFETY

■ The controller will show the

UNIT/CIRCUIT 1/2, WARNING

UNIT SAFETY

screen of the

safeties menu when a unit safety was the cause of shutdown.

■ The controller will show the

CIRCUIT 1/2 SAFETY

screen of

the safeties menu when a safety of the circuit 1/2 was activated.

■ The controller will show the

NETWORK SAFETY

screen of the

safeties menu when a safety of the network was activated.

■ The controller will show the

UNIT WARNING

screen of the

safeties menu when a unit warning was activated.

1 Press the π key when the alarm buzzer is activated.

The appropriate safety screen with the basic information appears. Press the ‡ key to go directly to the history menu and see the detailed information. These screens provide information about the unit status at the moment of shutdown (see "Safety menu π" on page 12).

2 If more than one kind of safety is active (indicated by means of

^, v or ÷), use the ﬁ and Ì keys to consult them.

Tasks of the history menu

Checking the safety info and the unit status after a reset

The information available in the safeties menu is also stored in the history menu, where it is stored after resetting the unit or the circuit. In this way, the history menu provides a means of checking the unit status at the moment of the latest shutdown.

To check the safety info and the unit status, proceed as follows:

1 Enter the

a menu" on page 8.) The controller enters the last

basic information of the moment of this shutdown.

2 Press the ﬁ and Ì keys to consult the other present

screens.

3 Press the ‡ key to see the detailed information.

HISTORY MENU

. (Refer to the chapter "How to enter

HISTORY

screen which contains

HISTORY

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 19

Tasks of the info menu

Consulting additional unit information

1 Enter the

chapter "How to enter a menu" on page 8). The controller enters the

following information: the

2 Press Ì to consult the ﬁrst

This screen contains information about the unit name, number of circuits, evaporators and coils, EEV and the refrigerant used.

3 Press Ì to consult the second

This screen contains information about the fans, volt/ampere and if there is a second pump or heater tape applied.

4 Press Ì to consult the

This screen contains information about the PCB software versions.

Tasks of the input/output menu

INFO MENU

through the main menu. (Refer to the

SW INFO

TIME INFO

TIME

UNIT INFO

screen which contains the

and

DATE

UNIT INFO

(software information) screen.

screen.

Checking the status of the inputs and outputs

The input/output menu provides a means of checking the status of the digital inputs and the status of the relay outputs.

The locked digital inputs are:

■

EMERGENCY STOP

pressed (only effective if there is an emergency stop present).

■

FLOWSWITCH

ﬂow).

■

HEATER TAPE

■

PUMPINTERLOCK

is open or closed.

■

PUMP

: indicates if the pump is on or off.

C1/2 REV.PH.PROT.

■

actual status of this safety of circuit 1/2.

■

C1/2 HIGH PR.SW.

actual status of this safety of circuit 1/2.

■

INT.L C11/C12/C21/22

the actual status of this safety of circuit1/2.

■

C1/2 FANOVERC. ST. 1/2/3

step 1/2/3) indicates the actual status of this safety of circuit 1/2.

The locked relay outputs are:

■

C11/12/21/22

■

C1/2 FANSTEP 1/2/3

the circuit 1/2 are on or not.

: whether the emergency button has been

: indicates the status of the ﬂowswitch (ﬂow/no

: indicates if the heater tape is activated or not.

: indicates if the status of the pump interlock

: (reverse phase protector) indicates the

: (high pressure switch) indicates the

: (interlock to compressor) indicates

: (fan overcurrent status

: indicates whether the circuit 1/2 is on or off.

: indicates if the fans of fanstep 1/2/3 for

Checking the status of the digital changeable inputs and outputs

The possible settings for the changeable digital inputs are:

■

NONE

: indicates there is no function selected for this input

■

STATUS

: indicates the position of the connected switch.

■

DUAL SETPOINT

setpoint switch: setpoint 1 or setpoint 2.

■

REMOTE ON/OFF

switch.

■

CAP LIMIT 25%/50%/75%/SET

"enable/disable capacity limitation" switches.

■

LOW NOISE

■

FREE COOLING REQ

or not requested.

■

FAN FORCED ON

not activated.

: indicates the position of the remote dual

: indicates the position of the remote on/off

: indicates the position of the

: indicates the status of the low noise mode.

: indicates if the free cooling is requested

: indicates if the fan forced on is activated or

The possible settings for the changeable relay outputs are:

■

NONE (OPEN)

■

CLOSED

■

2ND PUMP

■

100% CAPACITY

■

FULL CAPACITY

maximum capacity, example reached 100% capacity or reached maximum capacity because of safety limitation.

■

FREE COOLING

when the unit is in free cooling state.

■

GEN.OPERATION

■

SAFETY+W (NO)

(Normal Open contact).

■

SAFETY+W (NC)

(Normal Closed contact).

■

SAFETY (NO)

contact).

SAFETY (NC)

■

contact).

■

C1/2 SAFETY

■

WARNING

■

C1/2 OPERATION

active.

: Digital output open.

: Digital output closed.

: indicates the status of the second pump.

: indicates when the unit is working at 100%.

: indicates when the unit is working at

: indicates the status of the 3-way water valve

: indicates when the unit is active.

: indicates when safety or warning is active

: indicates when safety is active (Normal Open

: indicates when safety is active (Normal Closed

: indicates when circuit 1/2 safety is active.

: indicates when warning is active.

: indicates when circuit 1/2 operation is

Checking the status of the analogue changeable inputs and output

The possible settings for the analogue changeable inputs and output are:

■

NONE

: no function is appointed to the changeable analogue

input.

■

STATUS

■

FLOATING SETP

analogue input

■

TEMPERATURE

outlet temperature

■

DI***

inputs. (*** can be any of the following:

SETPOINT FREE COOLING REQ

: only displays the status by means of test

: ﬂoating setpoint based on ambient or

: only displays the (by example) condenser

: refer to the possible functions for changeable digital

STATUS, DUAL

REMOTE ON/OFF, CAP. LIMIT, LOW NOISE

FAN FORCED ON

Checking the communication inputs and outputs (option EKACPG)

The communication inputs and outputs are:

■

RS232 ONLINE

active.

■

RS485 ONLINE

active.

■

DIII ONLINE

active.

To check the inputs and outputs, proceed as follows:

1 Enter the

enter a menu" on page 8.) The controller enters the ﬁrst

2 Consult the other screens of the input/output menu using the ﬁ

and Ì keys.

: indicates if the RS232 communication line is

: indicates if the RS485 communication line is

: indicates if the DIII communication line is

I/O STATUS MENU

. (Refer to the chapter "How to

DIGITAL INPUTS

screen.

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 20

Tasks of the login/logout menu

TROUBLESHOOTING

Changing the user password

Access to the usersettings menu and the setpoints menu is protected by the user password (a 4-digit number between

After the password is entered, other protected screens do no longer require the entering of the password.

To log out, go to the login/logout menu and alter the login status and the logout setting.

NOTE

The default user password is

To change the user password, proceed as follows:

1 Enter the

USERPASSWORD MENU

. (Refer to the chapter "How

to enter a menu" on page 8). The controller will request the password.

2 Enter the actual correct password using the ﬁ, Ì and ‡ keys.

For each of the 4 digits:

- Use the ﬁ and Ì keys to select the correct number.

- Press the ‡ key to enter and select the next number.

When pressing the ‡ key on the last number, the complete password is entered.

3 After the ‡ key has been pressed to conﬁrm the password, the

controller shows the ﬁrst login/logout screen. The login status is shown.

The logout is set to NO.

4 When the setting for logout must change to

- Press the ‡ key to position the cursor behind

- Press the ﬁ or Ì keys to change the setting to

- Press the ‡ key to conﬁrm the setting.

The controller leaves the login/logout screen and shows the ﬁrst screen of the read out menu.

5 When the setting for logout stays NO, press the Ì key to enter

the second login/logout screen. The controller requests for a new password.

6 Press the ‡ key to position the cursor behind

7 Enter the new password using the ﬁ, Ì and ‡ keys.

For each of the 4 digits:

- Use the ﬁ and Ì keys to select the correct number.

- Press the ‡ key to enter and select the next number.

When pressing the ‡ key on the last number, the complete new password is entered and the cursor is positioned behind

CONFIRM

The controller requests to conﬁrm the new password.

8 Enter the new password again using the ﬁ, Ì and ‡ keys.

For each of the 4 digits:

- Use the ﬁ and Ì keys to select the correct number.

- Press the ‡ key to enter and select the next number.

When pressing the ‡ key on the last number, the conﬁrmation of the new password is completed.

NOTE

The actual password will only be changed when the new password and the conﬁrmed password have the same value.

If changed on one of the units in a DICN conﬁguration, this setting is automatically transferred to all the other units in the network.

1234

0000

and

9999

YES

LOGOUT?

YES

NEW PASSWORD

This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit.

Before starting the trouble shooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring.

Before contacting your local dealer, read this chapter carefully, it will save you time and money.

When carrying out an inspection on the supply panel or on the switch box of the unit, always make sure that the circuit breaker of the unit is switched off.

Overview of safety messages

Message safety menu Symptom

UNIT SAFETY 0AE:FLOW HAS STOPPED

0AE:PUMPINTERLOCK 0A4:FREEZE UP 0A4:FREEZE UP C1 0A4:FREEZE UP C2 0A9:EEV PCB COMM ERR 0A9:EEV PCB ERR 0C9:INL SENSOR ERR 0CA:OUT SENSOR ERR 0H9:AMB T SENSOR ERR 0U4:EXTPCB COMM.ERR 0U4:MAINPCB COMM.ERR 0U5:PCB COMM.PROBLEM

CIRCUIT 1 SAFETY

153:FAN OVERC. ST1 153:FAN OVERC. ST2 153:FAN OVERC. ST3 1A9:EEV ERR 1A9:SUPERHEAT ERR 1E3:HIGH PRESSURE SW 1E4:LOW PRESSURE 1E6:COMPR 1 SAFETY 1E6:COMPR 2 SAFETY 1F3:HIGH DISCH TEMP1 1F3:HIGH DISCH TEMP2

1J3:DISCHSENSOR ERR1 1J3:DISCHSENSOR ERR2 1J5:REFR SENSOR ERR 1J5:SUCTSENSOR ERR 1JA:HP SENSOR ERR 1JC:LP SENSOR ERR 1U1:REV PHASE PROT

CIRCUIT 2 SAFETY

253:FAN OVERC. ST1 253:FAN OVERC. ST2 253:FAN OVERC. ST3 2A9:EEV ERR 2A9:SUPERHEAT ERR 2E3:HIGH PRESSURE SW 2E4:LOW PRESSURE 2E6:COMPR 1 SAFETY 2E6:COMPR 2 SAFETY 2F3:HIGH DISCH TEMP1 2F3:HIGH DISCH TEMP2 2J3:DISCHSENSOR ERR1 2J3:DISCHSENSOR ERR2 2J5:REFR SENSOR ERR 2J5:SUCTSENSOR ERR 2JA:HP SENSOR ERR 2JC:LP SENSOR ERR 2U1:REV PHASE PROT

5.2

5.3

5.1

5.5

5.5 7 7 7 9

10 11

5.4

5.5

5.6

5.7

5.8

5.9b/5.10

5.11

5.11 7 7 7 7 7 7

5.12

5.4

5.5

5.6

5.7

5.8

5.9b/5.10

5.11

5.11 7 7 7 7 7 7

5.12

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 21

Message safety menu Symptom

UNIT WARNING 0AE:FLOW HAS STOPPED

0C9:INL SENSOR ERR 1E3:HP SETBACK 153:FAN OVERC. ST1 153:FAN OVERC. ST2 153:FAN OVERC. ST3 2E3:HP SETBACK 253:FAN OVERC. ST1 253:FAN OVERC. ST2 253:FAN OVERC. ST3

NETWORK SAFETY

0C9:INL SENSOR ERR 0U4:PCB COMM.PROBLEM 0U4:SW VERSION ERR

5.2 7

5.7

5.4

5.7

5.4

5.4 7

12 13

When a safety device was activated, stop the unit and ﬁnd out why the safety device was activated before resetting it. Under no circumstances safety devices may be bridged or changed to a value other than the factory setting. If the cause of the problem cannot be found, call your local dealer.

Symptom 1: The unit does not start, but the ON LED lights up

POSSIBLE CAUSES CORRECTIVE ACTION

The temperature setting is not correct.

The ﬂowstart timer is still running. The unit will start after approx. 15

The circuit can not start up. Refer to Symptom 4: The circuit

Unit is in manual mode (all compressors at 0%).

Power supply failure. Check the voltage on the supply

Blown fuse or interrupted protection device.

Loose connections. Inspect connections of the ﬁeld

Shorted or broken wires. Test circuits using a tester and repair

Symptom 2: The unit does not start, but the ON LED is ﬂashing

POSSIBLE CAUSES CORRECTIVE ACTION

The remote ON/OFF input is enabled and the remote switch is off.

Symptom 3: The unit does not start and the ON LED does not light up

POSSIBLE CAUSES CORRECTIVE ACTION

The unit is in failure mode. Refer to Symptom 5: Safety devices

One of the following safety devices is activated:

• Flowswitch (S8L,S9L)

•Emergency stop

The ON LED is broken. Contact your local dealer.

Check the controller setpoint.

seconds. Make sure that water is ﬂowing through the evaporator.

does not start up. Check on the controller.

panel. Inspect fuses and protection

devices. Replace by fuses of the same size and type (refer to "Electrical speciﬁcations" on page 2).

wiring and the internal wiring of the unit. Tighten all loose connections.

if necessary.

Put the remote switch on or disable the remote ON/OFF input.

are activated and alarm messages are displayed.

Refer to Symptom 5: Safety devices are activated and alarm messages are displayed.

Symptom 4: The circuit does not start up

POSSIBLE CAUSES CORRECTIVE ACTION

One of the following safety devices is activated:

• Compressor thermal protector (Q*M)

•Overcurrent relay (K*S)

• Discharge thermal protector

•Low pressure

• High pressure switch (S*PH)

•Reverse phase protector

•Freeze-up

Check on the controller and refer to Symptom 5: Safety devices are activated and alarm messages are displayed.

The anti-recycling timer is still active. The circuit can only start up after

approximately 5 minutes.

The guard timer is still active. The circuit can only start up after

approximately 3 minutes.

The circuit is limited to 0%. Check the enable/disable capacity

limitation remote contact.

Symptom 5: Safety devices are activated and alarm messages are displayed

Symptom 5.1: Freeze-up protection is activated

5.1

0A4:FREEZE UP

(

)

POSSIBLE CAUSES CORRECTIVE ACTION Water ﬂow too low. Increase the water ﬂow. Inlet temperature to the evaporator is

Increase the inlet water temperature.

too low. Flow switch is not working or no

water ﬂow.

Check the ﬂow switch and the water pump.

RESET After temperature increase the

freeze-up is reset automatically, but the circuit controller needs to be

Symptom 5.2: Flowswitch is activated

5.2

0AE:FLOW HAS STOPPED

(

reset.

)

POSSIBLE CAUSES CORRECTIVE ACTION No water ﬂow or too low water ﬂow. Check the water pump ﬁlter and the

water circuit for obstructions.

RESET After ﬁnding the cause, the

ﬂowswitch is reset automatically, but

Symptom 5.3: Pump interlock contact is open

5.3

0AE:PUMPINTERLOCK

(

the controller still needs to be reset.

)

POSSIBLE CAUSES CORRECTIVE ACTION The pump interlock contact is not

closed.

Make sure a pump interlock contact is wired correctly and closed when the pump starts operating.

RESET Only if a pump contactor is

present: Switch the black handle on

the pump fuse inside the switchbox

Symptom 5.4: Fan overcurrent is activated

5.4

153/253:FAN OVERC. 1/2/3

(

and reset the controller.

)

POSSIBLE CAUSES CORRECTIVE ACTION Mechanical failure (fan is blocked). Check that the fan rotates freely. Air ﬂow in the unit too low or outdoor

temperature too high.

Clean the air heat exchanger properly.

RESET Push the blue button on the fan fuse

inside the switchbox and reset the

Symptom 5.5: EEV driver is not operating

5.5

0A9:EEV PCB (COMM) ERR, 1A9/2A9:EEV ERR

(

controller.

)

POSSIBLE CAUSES CORRECTIVE ACTION The EEV driver is not operating. Check the power supply to the EEV

driver. Check if the address setting by DIP-switch is according to the wiring diagram.

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 22

Symptom 5.6: Superheat temperature is not correct

5.6

1A9/2A9:SUPERHEAT ERR

(

)

POSSIBLE CAUSES CORRECTIVE ACTION

Superheat temperature is too high. Check if the unit has enough

refrigerant (no foaming visible in sight glass). Check if the suction temperature sensor of the EEV driver is in the holder in the suction tube and not hanging loose.

Superheat temperature is too low. Check if the EEV driver or the control

motor of EEV is wired correctly and operating.

The sensed suction temperature is more than 2°C higher than the entering water temperature of the evaporator.

Symptom 5.7: High-pressure switch and high pressure setback

5.7

1E3/2E3:HIGH PRESSURE SW, 1E3/2E3:HP SETBACK

(

Check if the suction temperature sensor of the controller is in its holder and not hanging loose.

)

POSSIBLE CAUSES CORRECTIVE ACTION

Condenser fan does not operate properly.

Check that the fans turn freely. Clean if necessary.

Dirty or partially blocked condenser. Remove any obstacle and clean

condenser coil using brush and blower.

Inlet air temperature of the condenser is too high.

The air temperature measured at the inlet of the condenser may not exceed 43°C.

Fan turning in the wrong direction. Two phases of the power supply to

the fan motor must be inverted (by a licensed electrician).

RESET After pressure rise, this safety resets

automatically, but the controller still

Symptom 5.8: Low pressure

5.8

1E4/2E4:LOW PRESSURE

(

needs to be reset.

)

POSSIBLE CAUSES CORRECTIVE ACTION

Water ﬂow to water heat exchanger

Increase the water ﬂow.

too low. Shortage of refrigerant. Check for leaks and reﬁll refrigerant,

if necessary.

Unit is working out of its operation range.

Inlet temperature to the water heat

Check the operation conditions of the unit.

Increase the inlet water temperature.

exchanger is too low. Dirty evaporator. Clean the evaporator, or call your

local dealer.

Low pressure safety setting too high. Refer to the installation manual

"Customization in the service menu", paragraph "Setting of the minimum outlet water temperature" for correct values.

Flowswitch is not working or no water ﬂow.

Check the ﬂowswitch and the water pump.

RESET After pressure rise, this safety resets

automatically, but the controller still

Symptom 5.9a: The compressor does not work (only for SJ161-4)

5.9a

(Compressor thermal protection is activated)

needs to be reset.

POSSIBLE CAUSES CORRECTIVE ACTION

The compressor motor coil temperature is too high because the compressor motor takes (demands/needs) too much current and is not sufﬁciently cooled by refrigerant.

Make sure there are no refrigerant leaks. After repairing leaks, charge the unit with additional refrigerant until the sight glass in the liquid line shows no foaming.

Make sure the unit operates within its operating range (too high ambient or too high water temperature).

Make sure the compressor motor is not locked.

RESET After temperature decrease the

thermal protector is reset automatically and the compressor will start again. This is not detected by the controller.

If the protector is activated frequently, call your local dealer.

Symptom 5.9b: Compressor safety (only for SJ161-4)

5.9b

1E6/2E6:COMPR 1/2 SAFETY)

(

POSSIBLE CAUSES CORRECTIVE ACTION

Failure of one of the phases. Check fuses on the supply panel or

measure the supply voltage. Voltage too low. Measure the supply voltage. The unit is working out of its range. Make sure the unit operates within

its operating range. Overload of motor. Reset. If the failure persists, call your

local dealer. There is a short circuit. Check the wiring.

RESET Pull the black handle on the

compressor fuse inside the switch

Symptom 5.10: Compressor safety (only for SJ180-4~SJ240-4 and SJ300-4)

5.10

1E6/2E6:COMPR 1/2 SAFETY

(

box and reset the controller.

)

POSSIBLE CAUSES CORRECTIVE ACTION

The compressor motor coil temperature is too high because the compressor motor takes (demands/needs) too much current and is not sufﬁciently cooled by refrigerant.

Make sure there are no refrigerant

leaks.

After repairing leaks, charge the unit

with additional refrigerant until the

sight glass in the liquid line shows no

foaming.

Make sure the unit operates within

its operating range (too high ambient

or too high water temperature).

Make sure the compressor motor is

not locked.

RESET After temperature decrease, a 5

minute delay is activated. After this

delay the relay in the electronic

protection module (EPM) is pulled in.

The controller needs to be reset

manually.

Failure of one of the phases. Check fuses on the supply panel or

measure the supply voltage. Voltage too low. Measure the supply voltage. The unit is working out of its range. Make sure the unit operates within

its operating range. Overload of motor. Reset. If the failure persists, call your

local dealer. The compressor is running in

reverse phase (only for SJ240-

Check the wiring.

SJ300) There is a short circuit. Check the wiring.

RESET Pull the black handle on the

compressor fuse inside the switch

Symptom 5.11: Discharge thermal protector is activated

5.11

1F3/2F3:HIGH DISCH TEMP1/2

(

box and reset the controller.

)

POSSIBLE CAUSES CORRECTIVE ACTION

Unit is working outside the operation range.

Check the operation condition of the

unit. The unit is undercharged. Check if there are no refrigerant

leaks.

After repairing leaks, charge the unit

with additional refrigerant until the

sight glass in the liquid line shows no

foaming.

RESET After temperature decrease, the

Symptom 5.12: Reverse phase protector is activated

5.12

1U1/2U1:REV PHASE PROT

(

safety resets automatically but the

controller still needs to be reset.

)

POSSIBLE CAUSES CORRECTIVE ACTION

Tw o phases of the power supply are connected in the wrong phase position.

One phase is not connected

Invert two phases of the power

supply (by licensed electrician).

Check the connection of all phases. properly.

Voltage too low. Measure the supply voltage.

RESET After inverting two phases or ﬁxing

the power supply cables properly,

the protector is reset automatically,

but the controller still needs to be

reset.

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 23

Symptom 6: Unit stops soon after operation

One of the safety devices is activated.

Voltage is too low. Test the voltage in the supply panel

Symptom 7: Sensor error

The sensor is broken or not correctly wired.

Symptom 8: The alarm message shows

The software for the wired remote controller (A4P or A5P) is corrupt or absent.

Symptom 9: The alarm message shows

The extension PCB (A01P) can not be found.

POSSIBLE CAUSES CORRECTIVE ACTION

Check safety devices (refer to Symptom 5: Safety devices are activated and alarm messages are displayed).

and, if necessary, in the electrical compartment of the unit (voltage drop due to supply cables is too high).

0C9/0CA/0H9:*** SENSOR ERR

POSSIBLE CAUSES CORRECTIVE ACTION

Check if the wiring is according to the wiring diagram. Call your local dealer.

0U3:REMOCON SW ERR

POSSIBLE CAUSES CORRECTIVE ACTION

Check if the wiring to the main PCB (A11P) is according to the wiring diagram. Check if the "address setting" and the "terminator resistor setting" by DIP-switch is according to the setting mentioned in the wiring diagram. Call your local dealer.

0U4:EXT PCB COMM.ERR

POSSIBLE CAUSES CORRECTIVE ACTION

Check if the wiring to the extension PCB (A01P) is according to the wiring diagram. Call your local dealer.

Symptom 13: The

NETWORK SAFETY

alarm message shows

0U4:SW VERSION ERR

POSSIBLE CAUSES CORRECTIVE ACTION

All units in the DICN system (EKACPG) do not have the same software version.

Symptom 14: The water pressure can not be maintained

POSSIBLE CAUSES CORRECTIVE ACTION

There is a leak in the water circuit. Check for any leaks in the water

The expansion vessel is broken or does not work properly.

Check the software version of each unit. Call your local dealer in case a software upgrade is necessary.

circuit. Replace the expansion vessel.

MAINTENANCE

In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and the ﬁeld wiring have to be carried out at regular intervals.

If the unit is used for air conditioning application, the described checks must be executed at least once a year. In case the unit is used for other applications, the checks must be executed every 4 months.

Before carrying out any maintenance or repair activity, always switch off the circuit breaker on the supply panel, remove the fuses or open the protection devices of the unit.

Never clean the unit with water under pressure.

Maintenance activities

Symptom 10: The alarm message shows

The main PCB of circuit 2 (A21P) can not be found.

Symptom 11: The alarm message shows

The wired remote controller (A4P or A5P (EKRUPG)) has no correct communication with the main PCB (A11P).

Symptom 12: The

POSSIBLE CAUSES CORRECTIVE ACTION

Check if the wiring to the main PCB of circuit 2 (A21P) is according to the wiring diagram. Check if the "address setting" and the "terminator resistor setting" by DIP-switch is according to the setting mentioned in the wiring diagram. Call your local dealer.

POSSIBLE CAUSES CORRECTIVE ACTION

NETWORK SAFETY

0U4:PCB COMM.PROBLEM

POSSIBLE CAUSES CORRECTIVE ACTION

The unit can not be found by the DICN system (EKACPG)

Check if the wiring between units is according to the wiring diagram.

• Make sure all the units in the DICN system

• Make sure that the correct number of slave

• Make sure that the correct unit address

0U4:MAINPCB COMM.ERR

0U5:PCB COMM.PROBLEM

alarm message shows

are powered up.

units is deﬁned in the master unit.

setting is deﬁned in each unit (refer to the installation manual).

The wiring and power supply must be checked by a licensed electrician.

■ Air heat exchanger Remove dust and any other contaminant from the coil ﬁns using a brush and a blower. Blow from the inside of the unit. Take care not to bend or damage the ﬁns.

■ Field wiring and power supply

• Check the power supply voltage on the local supply panel. The

voltage must correspond to the voltage marked on the identiﬁcation label of the unit.

• Check the connections and make sure they are properly ﬁxed.

• Check the proper operation of the circuit breaker and the earth

leak detector provided on the local supply panel.

■ Internal wiring of the unit Visually check the switch boxes on loose connections (terminals and components). Make sure that the electrical components are not damaged or loose.

■ Earth connection Make sure that the earth wires are still connected properly and that the earth terminals are tightened.

■ Refrigerant circuit

• Check for leaks inside the unit. In case a leak is detected, call

your local dealer.

• Check the working pressure of the unit. Refer to "Switching the

unit on" on page 8.

■ Compressor

• Check on oil leaks. If there is an oil leak, call your local dealer.

• Check for abnormal noises and vibrations. If the compressor is

damaged, call your local dealer.

■ Fan motor

• Clean the cooling ribs of the motor.

• Check on abnormal noises. If the fan or motor are damaged, call

your local dealer.

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 24

■ Water supply

• Check if the water connection is still well ﬁxed.

• Check the water quality (refer to the installation manual of the unit for speciﬁcations of the water quality).

■ Water ﬁlters

• Make sure to clean the water ﬁlter in front of the evaporator water inlet once every 4 months.

• Check the ﬁlter for any possible damage and make sure that the hole diameter size all over the ﬁlter surface is still 1.0 mm maximum.

■ Water sensors Check that all the water sensors are correctly ﬁxed into the inlet and outlet water pipe.

■ Flowswitch Make sure that there is no dirt accumulating on the paddle of the ﬂowswitch.

■ Water pressure Check if the water pressure is within acceptable range. Refer to the installation manual delivered with the unit.

Disposal requirements

Dismantling of the unit, treatment of the refrigerant, of oil and of other parts must be done in accordance with relevant local and national legislation.

NOTES

Operation manual

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 25

NOTES

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 26

ANNEX I

a/2

Thermostat parameters

Water temperature control

The ﬁgures below show the thermostat diagram in case of inlet water temperature control.

■ Stand alone thermostat

a/2

c c

Inlet setpoint

(1)

(inlet or outlet)

a/2

c c

Outlet setpoint

■ DICN thermostat

Load up request of 1 compressor

no action

Load down request of 1 compressor

The default value and the upper and lower limits of the thermostat parameters are listed in the table below.

Default value

Units 1

(sec)

(°C)

(sec)

(°C)

(K)

circuit

Units 1

circuit

INLET CONTROL

Step difference - a Steplength - c Loadup timer Loaddown timer Setpoint

(*) can only be modiﬁed in the service menu

OUTLET CONTROL

Step difference - a Steplength - c Loadup timer Loaddown timer Setpoint

(*) can only be modiﬁed in the service menu

4.0

(*)

0.2

Units 2

circuits

(*)

2.0

Lower

limit

(*)

——

—— 180 15 300 30 15 300

12.0 7.0 23.0

Default value

4.0

(*)

0.2

Units 2

circuits

(*)

2.0

Lower

limit

(*)

——

—— 30 15 300 15 15 300

7.0 4.0 20.0

Upper

limit

Upper limit

The default value and the upper and lower limits of the thermostat parameters are listed in the table below.

INLET CONTROL Default value Lower limit Upper limit

Step difference - a Step difference - b Step difference - c Loadup timer Loaddown timer Setpoint

(*) can only be modiﬁed in the service menu

■ If the temperature is below the setpoint, the thermostat control will check every LOADDOWN TIMER. According to the deviation to the setpoint, no action, load up, down is required.

■ If the temperature is above the setpoint, the thermostat control will check every LOADUP TIMER. According to the deviation to the setpoint, no action, load up, down is required.

(1)

(inlet)

a/2

a/2 a/2

a/2

b b

c c c c

cccc

Inlet setpoint

(K)

(sec)

(°C)

Load up request of 4 compressors

Load up request of 3 compressors

Load up request of 2 compressors

Load up request of 1 compressor

no action

Load down request of 1 compressor

Load down request of 2 compressors

Load down request of 3 compressors

Load down request of 4 compressors

(*)

4.0

3.6

0.4

(*)

—— ——

—— 180 15 300 180 15 300

12.0 7.0 23.0

Operation manual

(1) Loadup request of 1 compressor: request to add one additional compressor.

Loadup request of 2 compressors: request to add 2 additional compressors (with interval of 15 seconds inbetween). The maximum number of compressors that can possibly be added in 1 request is limited to the total number of units that are present in the DICN setup: Example: A DICN setup with 2 units means load up requests of maximum 2 compressors at a time.

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 27

ANNEX II

Floating setpoint working

The diagrams and table below show the default value of the ﬂoating setpoint parameters on the evaporator and an example on the inlet setpoint of 12.0°C.

Legend

SLOPE The rise in ﬂoating setpoint value for a 10°C drop (ﬂoating

A Active setpoint B Setpoint

■ Floating setpoint based on ambient

A B

■ Floating setpoint based on NTC

A B

setpoint based on ambient or NTC) or a drop of 100 (ﬂoating setpoint based on voltage or milliampere).

_ FLOATING SETPOINT MODE:AMBIENT MAXPOS:03$0¢ NEG:00$0¢ RF:020$0¢ SLOPE:006$0¢

18.0°C

+6.0°C

15.0°C

13.5°C

12.0°C

_ FLOATING SETPOINT MODE:CH.AI SLOPE NTC MAXPOS:03$0¢ NEG:03$0¢ RF:020$0¢ SLOPE:006$0¢

18.0°C

15.0°C

13.5°C

12.0°C

9.0°C

3.0°C

+10.0°C

10.0°C 20.0°C

+6.0°C

3.0°C

+10.0°C

10.0°C 20.0°C 25.0°C

Example ambient = 17.5°C

17.5°C

AMBIENT

Example temperature = 17.5°C

17.5°C

CH.AI SLOPE NTC

■ Floating setpoint based on changeable analogue input

_ FLOATING SETPOINT MODE:CH.AI MAX VALUE MAXIMUM VALUE:003$0¢

15.0°C

+3.0°C

13.5°C

12.0°C

0 (0.0 V) (4 mA)

Example = 50 (0.5 V, 12 mA)

(0.5 V)

(12 mA)

CH.AI. MAX VALUE

100 (1.0 V) (20 mA)

ANNEX III

Free cooling working

Legend

SP Setpoint DI Differential

Free cooling on ambient temperature

free cooling state

OFF

■ Floating setpoint based on Voltage or mAmpere

_ FLOATING SETPOINT MODE:CH.AI SLOPE V-A MAXPOS:03$0¢ NEG:03$0¢ RF:020$0¢ SLOPE:012$0¢

18.0°C

15.0°C

13.5°C

12.0°C

9.0°C

6.0°C

+12.0°C

0 (0.0 V) (4 mA)

3.0°C

+100

Example = 35 (0.375 V, 10 mA)

(0.375 V)

(0.5 V)

(10 mA)

(12 mA)

CH.AI SLOPE V-A

100

(1.0 V)

(20 mA)

SP °C

Free cooling default minimum maximum

(°C)

5.0°C –30.0°C 25.0°C

1.0°C 1.0°C 5.0°C

ambient temperature

Free cooling on difference between inlet water evaporator temperature and ambient temperature

free cooling state

OFF

SP °C

Free cooling default minimum maximum

(°C)

5.0°C 1.0°C 20.0°C

5.0°C 1.0°C 10.0°C

inlet water evaporator temperature

minus ambient temperature

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 28

ANNEX IV

----STARTUP BUSY----

ªÒÂµ® †Úæ∂Ï

_v¶

013£6¢

…

≤0U4

∞

11 ∞12 ≠H 012$0¢

∞

21 ∞22

≠H

ENTER PASSWORD

PASSWORD: 0000 TO LOGIN

ENTER PASSWORD

PASSWORD: 0000 TO LOGIN

_v GENERAL TIMERS LOADUP:000s-DWN:000s PUMPLEAD :000s FLOWSTOP :00s

_v UNIT SAFETY 0F0:EMERGENCY STOP

>READOUT MENU SETPOINTS MENU USERSETTINGS MENU TIMERS MENU HISTORY MENU INFO MENU I/O STATUS MENU LOGIN/LOGOUT MENU NETWORK MENU COOL/HEAT MENU

_÷COOL. INLSP1:012$0¢ INLET WATER:013$6¢ OUTLET WATER:007$0¢ AMBIENT:006$5¢

> COOL. INLSP1:012$0¢ COOL. INLSP2:012$0¢ COOL. OUTSP1:007$0¢ COOL. OUTSP2:007$0¢

USERSETTINGS MENU >THERMOSTAT COMPRESSOR FAN PUMP FLOATING SETPOINT LANGUAGE TIME AND DATE FREE COOLING DICN ADVANCED DEFROST SERVICE MENU

_÷ COMPRESSOR TIMERS GRD11:000s 12:000s AREC11:000s 12:000s M.RT11:000s 12:000s

READOUT MENU

SETPOINTS MENU

USERSETTINGS MENU

TIMERS MENU

HISTORY MENU

_÷ C1 TEMP.READOUT C11 DISCHARGE:010$1¢ C12 DISCHARGE:010$5¢

_^ COMPRESSOR TIMERS GRD21:000s 22:000s AREC21:000s 22:000s M.RT21:000s 22:000s

ª ∑ Å Ó ‚

INFO MENU

I/O STATUS MENU

NETWORK MENU

COOL/HEAT MENU

_÷ C2 TEMP.READOUT C21 DISCHARGE:010$1¢ C22 DISCHARGE:010$5¢

THERMOSTAT

COMPRESSOR

FAN

PUMP

FLOATING SETPOINT

LANGUAGE

™ Ÿ Æ ∆ Í

_÷ C1 TEMP.READOUT C1 REFR:000$0¢

_v THERMOSTAT MODE:INL WATER LOADUP:300s-DWN:030s

_v COMPR.LEAD-LAG MODE:PRIORITY PRIORITY: C11>C12>C21>C22

_ FAN FORCED ON IF UNIT IS OFF THEN ALL FANS:OFF

_v PUMPCONTROL PUMPLEADTIME :020s PUMPLAGTIME :060s DAILY ON:N AT:12h00

_ FLOATING SETPOINT MODE:AMBIENT MAXPOS:03$0¢ NEG:00$0¢ RF:020$0¢ SLOPE:006$0¢

       

_÷ C2 TEMP.READOUT C2 REFR:000$0¢

_^ MANUAL SETTINGS C11:OFF C12:OFF C21:OFF C22:OFF F1*:OFF F2*:OFF

_^ COMPR.CAP.LIMIT MODE:LIMIT SETTING SET: C11:OFF C12:OFF C21:OFF C22:OFF

_^ DUAL PUMP MODE:AUTO ROTATION OFFSET ON RH :048h

_v UNIT HISTORY:002 0CA:OUT SENSOR ERR 22h33m00s 23/03/06 COOL INLSP1:012$0¢

_v UNIT HISTORY:001 1E6:COMPR 1 SAFETY 22h33m00s 23/03/06 COOL. INLSP1:012$0¢

_v TIME INFO TIME: 22h05 DATE: WED 24/01/07

_v DIGITAL INPUTS EMERGENCY STOP :OK FLOWSWITCH:FLOW OK

ENTER PASSWORD

PASSWORD: 0000 TO LOGIN

_v NETWORK COOL. INLSP1:012$0¢ INLET WATER:013$6¢ OUTLET WATER:007$0¢

_v UNIT HISTORY:002 INLET WATER:013$6¢ OUTLET WATER:007$0¢ AMBIENT:006$5¢

_v UNIT HISTORY:001 INLET WATER:013$6¢ OUTLET WATER:007$0¢ AMBIENT:006$5¢

_÷ UNIT INFO UNIT:AW-CO-260 C:SCL CIR:2 EVAP:1 COILC:2 EEV:P REF:R410A

_÷ DIG.INP/OUTPUTS HEATER TAPE:OFF PUMPINTERLOCK:CLOSED PUMP:ON

_v LOGIN/LOGOUT MENU LOGIN STATUS:USER

LOGOUT? NO

_^M:NORMAL CAP:000% SL1:NORMAL CAP:000% SL2:NORMAL CAP:000% SL3:NORMAL CAP:000%

_v UNIT HISTORY:002 C11 DISCHARGE:010$1¢ C12 DISCHARGE:010$5¢

_v UNIT HISTORY:001 C11 DISCHARGE:010$1¢ C12 DISCHARGE:010$5¢

_÷ UNIT INFO FAN: ST VA:Y 2PUMP:Y HEATERTAPE:Y FAN DO ST:2 DO INV:2

_÷ DIGITAL INPUTS C1 REV.PH.PROT. :OK C1 HIGH PR.SW. :OK INT.L C11:OK C12:OK

_^ LOGIN/LOGOUT MENU CHANGE PASSWORD NEW PASSWORD: 0000 CONFIRM: 0000

_v UNIT HISTORY:002 C21 DISCHARGE:010$1¢ C22 DISCHARGE:010$5¢

_v UNIT HISTORY:001 C21 DISCHARGE:010$1¢ C22 DISCHARGE:010$5¢

_^ SW INFO MAIN:SP1710_055 V2.0 EXT.:SP1559_017 REM.:SP1734_011

_÷ DIGITAL INPUTS C1 FAN OVERC.ST1:OK C1 FAN OVERC.ST2:OK C1 FAN OVERC.ST3:NOK

_v UNIT HISTORY:002 C1 REFR:000$0¢

_v UNIT HISTORY:001 C1 REFR:000$0¢

_÷ DIGITAL INPUTS C2 REV.PH.PROT. :OK C2 HIGH PR.SW. :OK INT.L C21:OK C22:OK

_v UNIT HISTORY:002 C2 REFR:000$0¢

_v UNIT HISTORY:001 C2 REFR:000$0¢

_÷ DIGITAL INPUTS C2 FAN OVERC.ST1:OK C2 FAN OVERC.ST2:OK C2 FAN OVERC.ST3:NOK

Operation manual

SWITCH UNIT ON/OFF ENTER PASSWORD PASSWORD: 0000 TO SWITCH UNIT ON

Packaged air-cooled water chillers

EWAQ080~260DAYN

4PW35556-1F – 2014.03

Page 29

_÷ C1 ACT. PRESSURES HP1:019$0b = 050$8¢ LP1:004$4b = -05$2¢ FAN1:OFF

_÷ C2 ACT. PRESSURES HP2:019$0b = 050$8¢ LP2:004$4b = -05$2¢ FAN2:OFF

_÷ UNIT STATUS C11:OFF SAFETY ACT. C12:OFF SAFETY ACT. UNIT CAPACITY:000%

_÷ UNIT STATUS C21:OFF SAFETY ACT. C22:OFF SAFETY ACT.

_÷ EXTRA READOUT CURRENT:055A VOLTAGE:023V

_÷ EXTRA READOUT C11RH:00000hCS:00000

RHP1:00001hP2:00000h

TIME AND DATE

FREE COOLING

DICN

ADVANCED

DEFROST

SERVICE MENU

_÷ UNIT HISTORY:002 HP1:019$0b = 050$8¢ LP1:004$4b = -05$2¢ FAN1:OFF

_ TIME AND DATE TIME: 22h35 DATE FORMAT:DD/MM/YY DATE: WED 24/01/07

_ FREE COOLING MODE:AMBIENT SP: 05$0¢ DIF:01$0¢ PUMP:ON LEAD:000s

_ MASTER SETTINGS MODE:NORMAL OFFSET:0000h PUMP ON IF:UNIT ON

_v ADVANCED PASSWORD NEEDED FOR: SETPOINT MENU:Y UNIT ON/OFF:Y

ENTER SERVICE

PASSWORD: 0000 TO LOGIN

_÷ UNIT HISTORY:002 HP2:019$0b = 050$8¢ LP2:004$4b = -05$2¢ FAN2:OFF

_v UNIT HISTORY:002 C12RH:00000hCS:00000

_÷ ADVANCED MAIN MENU:GRAPHIC LOGOUT TIMER :05min BUZZER IF SAFETY:YES

_÷ UNIT HISTORY:002 C11:OFF SAFETY ACT. C12:OFF SAFETY ACT. UNITCAPACITY:000%

_v UNIT HISTORY:002 C21RH:00000hCS:00000

_÷ EXTRA READOUT C12RH:00000hCS:00000

_^ ADVANCED BACKLIGHT TIME:05min GRAPHIC READOUT:YES

_÷ UNIT HISTORY:002 C21:OFF SAFETY ACT. C22:OFF SAFETY ACT.

_v UNIT HISTORY:002 C22RH:00000hCS:00000

_÷ EXTRA READOUT C21RH:00000hCS:00000

_÷ UNIT HISTORY:002 CURRENT:055A VOLTAGE:023V

_÷ UNIT HISTORY:002 AI1 NONE AI2 NONE

_÷ EXTRA READOUT C22RH:00000hCS:00000

_÷ UNIT HISTORY:002 C11RH:00000hCS:00000

RHP1:00000hP2:00000h

_÷ UNIT HISTORY:002 AI3 NONE AI4 NONE

_÷ UNIT HISTORY:001 HP1:019$0b = 050$8¢ LP1:004$4b = -05$2¢ FAN1:OFF

_÷ COMP. OUTPUTS C11:ON C12:ON C21:ON C22:ON

_÷ UNIT HISTORY:001 HP2:019$0b = 050$8¢ LP2:004$4b = -05$2¢ FAN2:OFF

_v UNIT HISTORY:001 C12RH:00000hCS:00000

_÷ FAN INP/OUTPUTS C1 FANSTEP 1:CLOSED C1 FANSTEP 2:CLOSED C1 FANSTEP 3:CLOSED

_÷ UNIT HISTORY:001 C11:OFF SAFETY ACT. C12:OFF SAFETY ACT. UNITCAPACITY:000%

_v UNIT HISTORY:001 C21RH:00000hCS:00000

_÷ FAN INP/OUTPUTS C2 FANSTEP 1:CLOSED C2 FANSTEP 2:CLOSED C2 FANSTEP 3:CLOSED

_÷ UNIT HISTORY:001 C21:OFF SAFETY ACT. C22:OFF SAFETY ACT.

_v UNIT HISTORY:001 C22RH:00000hCS:00000

_÷CHANG. DIG. INPUTS DI1 NONE DI2 NONE DI3 NONE

_÷CHANG. INP/OUTPUTS DO6 NONE (OPEN) AI1 NONE AI2 NONE

_÷ UNIT HISTORY:002 CURRENT:055A VOLTAGE:023V

_÷ UNIT HISTORY:001 AI1 NONE AI2 NONE

_÷CHANG. DIG. INPUTS DI4 NONE DO1 SAFETY+W.(NO) :O DO2 GEN.OPERATION :O

_÷CHANG. INP/OUTPUTS AI3 NONE AI4 NONE AO1 NONE

_÷ UNIT HISTORY:001 C11RH:00000hCS:00000

RHP1:00000hP2:00000h

_÷ UNIT HISTORY:001 AI3 NONE AI4 NONE

_÷CHANG. INP/OUTPUTS DO3 NONE (OPEN) DO4 NONE (OPEN) DO5 NONE (OPEN)

_^ COMMUNICATION RS232 ONLINE:N RS485 ONLINE:N DIII ONLINE:N

EWAQ080~260DAYN Packaged air-cooled water chillers 4PW35556-1F – 2014.03

Operation manual

Page 30

Page 31

Page 32

4PW35556-1F 2014.03

Daikin EWAQ080DAYN, EWAQ100DAYN, EWAQ130DAYN, EWAQ150DAYN, EWAQ180DAYN Operation manuals

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

Important information regarding the refrigerant used

DESCRIPTION

Function of the main components

Safety devices

Internal wiring - Parts table

Water supply

BEFORE OPERATION

Checks before initial start-up

Power supply connection and crankcase heating

General recommendations

OPERATION

Digital controller

Working with the unit

Advanced features of the digital controller

TROUBLESHOOTING

MAINTENANCE

Maintenance activities

Disposal requirements