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EWYQ080~250DAYN
Packaged air-cooled water chillers
4PW35558-1B

Operation manual

6

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,A72P............. PCB EEV driver

A73P...................... PCB EEV driver (only for 250)

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 EWYQ130~250 with option OPIF)

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

E4H...............**...... Heater tape 

(only for option OP10, OPSP, OPHP or OPTP)

E5H...............* ....... Field heater

E6H...............**...... Buffer tank heater 

(only for option OP10 or OPBT)

E7H...............**...... Switch box heater

(only for 100 with option OPIF)

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

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

(only for EWYQ130~250)

F1~F3 ...........# ...... Main fuses

F1U........................ Fuse for 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 EWYQ130~250)

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 option OPSP, 

OPHP, OPSC, OPTC and OPTP)

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

(only for options OPTC and OPTP)

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

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

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

circuit 1 M11C, M12C

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

circuit 2 M21C, M22C

HAP~HEP.............. LED PCB

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

circuit 2

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

OPSC, OPTC and OPTP)

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 100 and EWYQ180~250)

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

(only for 100 and EWYQ180~250)

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

(only for 100 and 250)

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

(only for 100 and 250)

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

(only for EWYQ130~250)

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

(only for EWYQ130~250)

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

(only for EWYQ130~250)

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

(only for EWYQ180~250)

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

(only for EWYQ180~250)

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

(only for 250)

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

(only for 250)

M1F........................ Cooling fan for switch box

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

OPSC, OPTC and OPTP)

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

(only for option OPTC and OPTP)

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

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

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

(only for 100 and EWYQ180~250)

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

(only for 100 and 250)

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

(only for EWYQ130~250)

M23F,M24F ............ Fan motors circuit 2 (only for EWYQ130~250)

M25F...................... Fan motor circuit 2 (only for EWYQ180~250)

M26F...................... Fan motor circuit 2 (only for 250)

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

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

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

circuit 1 (not for EWYQ130)

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

circuit 2 (only for EWYQ150~250)

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

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

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

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

input

R14T,R34T............. Suction temperature sensor circuit 1, circuit 2

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

R16T,R36T............. Coil temperature sensor circuit 1, circuit 2

R17T,R37T............. Refrigerant piping temperature sensor circuit 1, 

circuit 2

R18T,R38T............. Heating suction temperature sensor circuit 1, 

circuit 2

R26T ...................... Coil temperature sensor circuit 1

(only for 100 and 250)

R28T,R48T............. Heating suction temperature sensor circuit 1, 

circuit 2 (only for 100 and 
250)

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

(only for EWYQ130~250)

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

(only for EWYQ130~250)

R38T ...................... Heating suction temperature sensor circuit 2 

(not for 100)

R46T ...................... Coil temperature sensor circuit 2

(only for 250)

Summary of Contents for EWYQ080DAYN

Page 1: ...OPERATION MANUAL EWYQ080DAYN EWYQ100DAYN EWYQ130DAYN EWYQ150DAYN EWYQ180DAYN EWYQ210DAYN EWYQ230DAYN EWYQ250DAYN Packaged air cooled water chillers...

Page 2: ...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...

Page 3: ...p 15 15 20 20 13 13 13 13 15 15 15 15 Phase 3 Frequency Hz 50 Voltage V 400 Maximum running current Circuit 1 Circuit 2 A A 39 39 51 51 35 35 35 35 39 39 39 39 Control and fan motor Phase 1 Frequency...

Page 4: ...r supply intake 32 Liquid receiver 2 Condenser in cooling mode or evaporator in heating mode 17 Switchbox 33 Pump optional 18 Digital display controller behind service panel 34 Buffer tank optional 3...

Page 5: ...nters 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 p M12C M11C M15F M13F M14F R14T B1PL...

Page 6: ...al 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...

Page 7: ...ercurrent relay for circuit 1 K15F Fancontactor for circuit 1 only for EWYQ080 100 and EWYQ180 250 K15S Fan overcurrent relay for circuit 1 only for EWYQ080 100 and EWYQ180 250 K16F Fancontactor for c...

Page 8: ...ally 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 th...

Page 9: ...k 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 D...

Page 10: ...n a unit with status NORMAL or STANDBY all other units with status NORMAL or STANDBY will be ON or OFF If the key is pressed on a unit with status DISCONNECT ON OFF only this unit will be ON or OFF Co...

Page 11: ...ter temperature has not risen enough compared to previous switch off of the compressor FREE COOLING free cooling mode is active TIMER BUSY the actual value of one of the compressor timers is not zero...

Page 12: ...work 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 key of the...

Page 13: ...l informa tion about the current Ampere and voltage of the unit _v 0U4 013 6 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 DISCHARG...

Page 14: ...IC READOUT YES _v MANUAL DEFROST UNIT DEFROST OFF CIR1 DEFROST OFF CIR2 DEFROST OFF _ DEFROST MIN TIME BETWEEN DEFROST NORMAL ENTER SERVICE PASSWORD 0000 TO LOGIN To check the actual value of the gene...

Page 15: ...2 C12RH 00000hCS 00000 C12C 00000h H 00000h _ UNIT HISTORY 002 C21RH 00000hCS 00000 C21C 00000h H 00000h _ UNIT HISTORY 002 C22RH 00000hCS 00000 C22C 00000h H 00000h _ UNIT HISTORY 002 AI1 NONE AI2 NO...

Page 16: ...control mode The unit is equipped with a thermostat which controls the cooling or heating capacity of the unit Select the appropriate mode MANUAL CONTROL manual control mode the operator controls the...

Page 17: ...ntrol The DUAL PUMP screen of the usersettings menu allows the user to define the steering of two pumps for this to be possible a changeable digital output has to be configured for a second pump in th...

Page 18: ...however will only come into operation if another unit is in alarm another unit is in DISCONNECT ON OFF mode the setpoint is not reached when all other units have been running on full capacity for some...

Page 19: ...counting when the compressor circuit 1 2 has started During the countdown the compressor cannot be restarted MINIMUM RUNNING TIME M RT 120 sec starts counting when the compressor has started During th...

Page 20: ...h REMOTE COOL HEAT indicates the position of the remote cool heat switch CAP LIMIT 25 50 75 SET indicates the position of the enable disable capacity limitation switches LOW NOISE indicates the status...

Page 21: ...next number When pressing the key on the last number the confirmation of the new password is completed TROUBLESHOOTING This section provides useful information for diagnosing and correcting certain t...

Page 22: ...y devices are activated and alarm messages are displayed The ON LED is broken Contact your local dealer Message safety menu Symptom POSSIBLE CAUSES CORRECTIVE ACTION One of the following safety device...

Page 23: ...or 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...

Page 24: ...essary in the electrical compartment of the unit voltage drop due to supply cables is too high POSSIBLE CAUSES CORRECTIVE ACTION The sensor is broken or not correctly wired Check if the wiring is acco...

Page 25: ...er 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 mo...

Page 26: ...s load up requests of maximum 2 compressors at a time A Load up request of 1 compressor B No action C Load down request of 1 compressor D Inlet setpoint E Outlet setpoint INLET CONTROL Default value L...

Page 27: ...TING SETPOINT MODE AMBIENT MAXPOS 03 0 NEG 00 0 RF 020 0 SLOPE 006 0 12 0 C 13 5 C 15 0 C 18 0 C 17 5 C 10 0 C 20 0 C 6 0 C 3 0 C 10 0 C A B AMBIENT _ FLOATING SETPOINT MODE CH AI SLOPE NTC MAXPOS 03...

Page 28: ...FO FAN ST VA Y 2PUMP Y HEATERTAPE Y FAN DO ST 2 DO INV 2 ENTER PASSWORD PASSWORD 0000 TO LOGIN ENTER PASSWORD PASSWORD 0000 TO LOGIN _ COOLING HEATING MODE COOLING STARTUP BUSY READOUT MENU SETPOINTS...

Page 29: ...ACT C12 OFF SAFETY ACT UNIT CAPACITY 000 _ UNIT STATUS C21 OFF SAFETY ACT C22 OFF SAFETY ACT _ C1 ACT PRESSURES HP1 019 0b 050 8 LP1 004 4b 05 2 FAN1 OFF _ UNIT HISTORY 002 HP2 019 0b 050 8 LP2 004 4...

Page 30: ...4PW35558 1B Copyright Daikin...

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