Handleiding
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Symptom
Cause
Solution
Circuit status is On.
Economizer is Off.
Bell icon is moving on controller’s
display.
String in the alarm list:
Cx EcoPressSen
String in the alarm log:
Cx EcoPressSen
String in the alarm snapshot
Cx EcoPressSen
Sensor is broken.
Check for sensor integrity.
Check correct sensors operation
according to 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 to electrical scheme.
Reset
Notes
Local HMI
Network
Auto
5.4.2 Economizer Temperature Sensor fault
This alarm is generated to indicate that the sensor is not reading properly.
Symptom
Cause
Solution
Circuit status is On.
Economizer is Off.
Bell icon is moving on controller’s
display.
String in the alarm list:
Cx EcoTempSen
String in the alarm log:
± Cx EcoTempSen
String in the alarm snapshot
Cx EcoTempSen
Sensor is shorted.
Check for sensor integrity.
Check correct sensors operation
according to information about kOhm
(k) range related to temperature
values.
Sensor is broken.
Check if sensor is shorted with a
resistance measurement.
Sensor is not good connected (open).
Check for correct installation of the
sensor on refrigerant circuit pipe.
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 with electrical scheme.
Reset
Notes
Local HMI
Network
Auto
5.4.3 Failed Pumpdown
This alarm is generated to indicate that the circuit hadn’t been able to remove all the refrigerant from the evaporator. It
automatically clears as soon as the compressor stops just to be logged in the alarm history. It may not be recognized from
BMS because the communication latency can give enough time for the reset. It may not even be seen on the local HMI.
Symptom
Cause
Solution
Circuit status is Off.
No indications on the screen
String in the alarm list:
--
String in the alarm log:
± Cx Failed Pumpdown
String in the alarm snapshot
Cx Failed Pumpdown
EEXV is not closing completely,
therefore there’s “short-circuit”
between high pressure side with low
pressure side of the circuit.
Check for proper operation and full
closing position of EEXV. Sight glass
should not show refrigerant flow after
the valve is closed.
Check LED on the top of the valve, C
LED should be solid green. If both
LED are blinking alternately the valve
motor is not properly connected.
Evaporating pressure sensor is not
working properly.
Check for proper operation of
evaporating pressure sensor.
Compressor on circuit is internally
damaged with a mechanical problem
for example on internal check-valve,
or on internal spirals or vanes.
Check compressors on circuits.
Bekijk gratis de handleiding van Daikin EWAH670TZXRB2, 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 | EWAH670TZXRB2 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11657 MB |
