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Air cooled inverter water chiller
OPERATION
MANUAL
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
Operation Manual
71
CxCmp1 OffOilFeedPSen
pressure through the valve’s needle.
Check for absence of water or
humidity on sensor electrical contacts.
Check for correct plug-in of the
electrical connectors.
Check for correct sensors wiring also
according electrical scheme.
6.1.6.4 High Compressor Vfd Temperature fault
This alarm is generated to indicate that the Vfd temperature is too high to allow the compressor to
run.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is switched off with the
normal shutdown procedure.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 VfdOverTemp
String in the alarm log:
CxCmp1 VfdOverTemp
String in the alarm snapshot
CxCmp1 VfdOverTemp
Cooling solenoid valve is not
operating properly.
Check electrical connection of the
solenoid valve.
Check refrigerant charge. Low
refrigerant charge can cause
overheating of the Vfd electronic.
Check for obstructions in the pipe.
Vfd Heater not properly connected.
Check if Vfd heater is switched off
when the Vfd temperature increases.
Check if the contactor that commands
the Vfd heater can switch propertly.
6.1.6.5 Low Compressor Vfd Temperature fault
This alarm is generated to indicate that the Vfd temperature is too low to allow the compressor to
run.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is switched off with the
normal shutdown procedure.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 VfdLowTemp
String in the alarm log:
CxCmp1 VfdLowTemp
String in the alarm snapshot
CxCmp1 VfdLowTemp
Cooling solenoid valve is not
operating properly. It’s always open
when compressor runs.
Check electrical connection of the
solenoid valve.
Check operation of the valve to see if
it can close properly.
Check operating cycles of the valve. It
has a limited number of cycles.
Vfd heater is not working.
Check if the Vfd heater is powered.
Check if the Vfd heater is
commanded on when Vfd
temperature is low.
6.1.6.6 Low Discharge Superheat fault
This alarm indicates that the unit has worked for too much time with low discharge super heat.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is switched off with the
shutdown procedure.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 OffDishSHLo
String in the alarm log:
CxCmp1 OffDishSHLo
String in the alarm snapshot
CxCmp1 OffDishSHLo
EEXV is not working correctly.
It’s not opening enough or it’s moving
in the opposite direction.
Check if pump-down can be finished
for pressure limit reached;
Check valve movements.
Check connection to the valve driver
on the wiring diagram.
Measure the resistance of each
winding, it has to be different from 0
Ohm.
Bekijk gratis de handleiding van Daikin EWAD620TZPLB, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EWAD620TZPLB |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11976 MB |
