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Operation manual

23

EWYQ080~250DAYN

Packaged air-cooled water chillers

4PW35558-1B

5.13

Symptom 6: Unit stops soon after operation

6

Symptom 7: Sensor error

 0C9

/

0CA

/

0H9:*** SENSOR ERR

7

Symptom 8: The alarm message shows

 

0U3:REMOCON SW ERR

8

Symptom 9: The alarm message shows

 

0U4:EXT PCB COMM.ERR

9

Symptom 10: The alarm message shows

 

0U4:MAINPCB COMM.ERR

10

Symptom 11: The alarm message shows

 

0U5:PCB COMM.PROBLEM

11

Symptom 12: The

 

NETWORK SAFETY 

alarm message shows

 

0U4:PCB COMM.PROBLEM

12

Symptom 13: The 

NETWORK SAFETY 

alarm message shows

 

0U4:SW VERSION ERR

13

Symptom 14: The water pressure can not be maintained

M

AINTENANCE

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.

Maintenance activities

■

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 identifi-
cation 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.

Symptom 5.13:  Compressor protection (function of controller) is activated 

(

1E6

/

2E6:COMPR PR

)

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

Compressor is working outside the 
operation range.

Check the operation condition of the 
compressor.

RESET

When the temperature has returned 
to normal, the controller resets 
automatically.

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

One of the safety devices is 
activated. 

Check safety devices (refer to 

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

).

Voltage is too low.

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

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

The sensor is broken or not correctly 
wired.

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

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

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

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.

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

The extension PCB (A01P) can not 
be found.

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

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

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

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.

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

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

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.

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

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 

are powered up.

• Make sure that the correct number of slave 

units is defined in the master unit.

• Make sure that the correct unit address 

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

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

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

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

P

OSSIBLE

 

CAUSES

C

ORRECTIVE

 

ACTION

There is a leak in the water circuit.

Check for any leaks in the water 
circuit.

The expansion vessel is broken or 
does not work properly.

Replace the expansion vessel.

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.

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

Содержание EWYQ080DAYN

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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