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5.1.11 Heat Recovery Entering Water Temperature sensor fault
This alarm is generated any time that the input resistance is out of an acceptable range.
Symptom
Cause
Solution
Unit status is Off.
All circuits are stopped with a normal
shutdown procedure.
Bell icon is moving on controller’s
display.
String in the alarm list:
UnitAlHREwtSen
String in the alarm log:
UnitAlHREwtSen
String in the alarm snapshot
UnitAlHREwtSen
Sensor is broken.
Check for sensor integrity according
table and allowed kOhm (k) range.
Check correct sensors operation
Sensor is shorted.
Check if sensor is shorted with a
resistance measurement.
Sensor is not properly connected
(open).
Check for absence of water or
humidity on electrical contacts.
Check for correct plug-in of the
electrical connectors.
Check for correct sensors wiring also
according electrical scheme.
Reset
Notes
Local HMI
Network
Auto
5.1.12 Heat Recovery Leaving Water Temperature sensor fault
This alarm is generated any time that the input resistance is out of an acceptable range.
Symptom
Cause
Solution
Heat Recovery is Off
Bell icon is moving on controller’s
display.
String in the alarm list:
UnitAlHRLvgSen
String in the alarm log:
UnitAlHRLvgSen
String in the alarm snapshot
UnitAlHRLvgSen
Sensor is broken.
Check for sensor integrity according
table and allowed kOhm (k) range.
Check correct sensors operation
Sensor is shorted.
Check if sensor is shorted with a
resistance measurement.
Sensor is not properly connected
(open).
Check for absence of water or
humidity on electrical contacts.
Check for correct plug-in of the
electrical connectors.
Check for correct sensors wiring also
according electrical scheme.
Reset
Notes
Local HMI
Network
Auto
5.1.13 Heat Recovery Water Temperatures inverted
This alarm is generated any time that the heat recovery entering water temperature is lower than the leaving by 1 °C and
at least one compressor is running.
Symptom
Cause
Solution
Bell icon is moving on controller’s
display.
Bell icon is moving on controller’s
display.
String in the alarm list:
Unit HRInvAl
String in the alarm log:
Unit HRInvAl
String in the alarm snapshot
Unit HRInvAl
Entering and leaving water
temperature sensors are inverted.
Check cabling of the sensors on the
unit controller.
Check offset of the two sensors with
the water pump running
Entering and leaving water pipes are
reversed.
Check if the water flows in counter
flow respect to refrigerant.
Water pump operate reverse.
Check if the water flows in counter
flow respect to refrigerant.
Reset
Notes
Local HMI
Network
Auto
Bekijk gratis de handleiding van Daikin EWYS5004Z, 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 | EWYS5004Z |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 7564 MB |
