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Air cooled inverter water chiller
OPERATION
MANUAL
Operation Manual
76
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
Cx OffNbrRestarts
6.1.7.10 No Pressure Change At Start Alarm
This alarm indicates that the compressor is not able to start or to create a certain minimum
variation of the evaporating or condensing pressures after start.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
Cx OffNoPressChgStart
String in the alarm log:
Cx OffNoPressChgStart
String in the alarm snapshot
Cx OffNoPressChgStart
Compressor cannot start
Check if the start signal is properly
connected to the inverter.
Compressor is turning in wrong
direction.
Check correct phases sequence to
the compressor (L1, L2, L3) according
to the electrical scheme.
Inverter is not properly programmed
with the right direction of rotation
Refrigerant circuit is empty of
refrigerant.
Check circuit pressure and presence
of refrigerant.
Not proper operation of evaporating
or condensing pressure transducers.
Check proper operation of
evaporating or condensing pressure
transducers.
6.1.7.11 Evaporating Pressure sensor fault
This alarm indicates that the evaporating pressure transducer is not operating properly.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 EvapPressSen
String in the alarm log:
CxCmp1 EvapPressSen
String in the alarm snapshot
CxCmp1 EvapPressSen
Sensor is broken.
Check for sensor integrity.
Check correct sensors operation
according information about mVolt
(mV) range related to pressure values
in kPa.
Sensor is shorted.
Check if sensor is shorted with a
resistance measurement.
Sensor is not properly connected
(open).
Check for correct installation of the
sensor on refrigerant circuit pipe. The
transducer must be able to sense the
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.
6.1.7.12 Condensing Pressure sensor fault
This alarm indicates that the condensing pressure transducer is not operating properly.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 CondPressSen
String in the alarm log:
CxCmp1 CondPressSen
String in the alarm snapshot
CxCmp1 CondPressSen
Sensor is broken.
Check for sensor integrity.
Check correct sensors operation
according information about mVolt
(mV) range related to pressure values
in kPa.
Sensor is shorted.
Check if sensor is shorted with a
resistance measurement.
Sensor is not properly connected
(open).
Check for correct installation of the
sensor on refrigerant circuit pipe. The
transducer must be able to sense the
pressure through the valve’s needle.
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 |
