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Local HMI
Network
Auto
5.2.3 Outside Air Temperature (OAT) Lockout
This alarm prevents the unit to start if the outside air temperature is too low. Purpose is to prevent low pressure trips at
startup. The limit depends on the fan regulation that is installed on the unit. By default, this value is set to 10°C.
Symptom
Cause
Solution
Unit Status is OAT Lockout.
All circuits are stopped with a normal
shutdown procedure.
Bell icon is moving on controller’s
display.
String in the alarm list:
StartInhbtAmbTempLo
String in the alarm log:
± StartInhbtAmbTempLo
String in the alarm snapshot
StartInhbtAmbTempLo
Outside ambient temperature is lower
than value set into unit’s controller.
Check the minimum outside ambient
temperature value set into the unit’s
controller.
Check if this value is in accordance
with chiller application, therefore
check about the proper application
and utilization of the chiller.
Improper operation of Outside
Ambient Temperature sensor.
Check for proper operation of OAT
sensor according to information about
kOhm (k) range related to
temperature values.
Reset
Notes
Local HMI
Network
Auto
It clears automatically with a 2.5°C of
hysteresis.
5.2.4 Outside Air Temperature sensor fault alarm
This alarm is generated any time the input resistance is out of an acceptable range.
Symptom
Cause
Solution
Unit status is Off.
All circuits are stopped with a normal
shutdown precedure.
Bell icon is moving on controller’s
display.
String in the alarm list:
UnitOffAmbTempSen
String in the alarm log:
± UnitOffAmbTempSen
String in the alarm snapshot
UnitOffAmbTempSen
Sensor is broken.
Check for sensor integrity.
Check correct sensors operation
according to table and allowed kOhm
(k) range.
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 to electrical scheme.
Reset
Notes
Local HMI
Network
Auto
5.3 Unit Rapid Stop Alarms
5.3.1 Emergency Stop
This alarm is generated any time the Emergency Stop button is activated.
Before resetting the Emergency Stop button please verify that the harmful condition has been
removed.
Symptom
Cause
Solution
Unit status is Off.
All circuits are stopped immediately.
Bell icon is moving on controller’s
display.
String in the alarm list:
UnitOffEmergencyStop
String in the alarm log:
± UnitOffEmergencyStop
String in the alarm snapshot
UnitOffEmergencyStop
Emergency stop button has been
pushed.
Turning counterclockwise the
emergency stop button, the alarm
should be cleared.
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 |
