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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
59
module
6.1.1.3 Energy Meter Communication Fail
This alarm is generated in case of communication problems with the energy meter.
Symptom
Cause
Solution
Bell icon is moving on controller’s
display.
String in the alarm list:
EnergyMtrCommFail
String in the alarm log:
EnergyMtrCommFail
String in the alarm snapshot
EnergyMtrCommFail
Module has no power supply
Refer to the datasheet of the specific
component to see if it is correctly
powered
Modbus parameters not properly set
Referring to the datasheet of the
specific component to see if the
modbus parameters are set correctly:
Address = 20
Baud Rate =19200 kBs
Parity = None
Stop bits =1
Module is broken
Check if LED are on and both green.
If BSP LED is solid red replace the
module
Check if power supply is ok but LEDs
are both off. In this case replace the
module
6.1.1.4 External Event
This alarm indicates that a device, whose operation is linked with this machine, is reporting a
problem.
Symptom
Cause
Solution
Unit status is Run.
Bell icon is moving on controller’s
display.
String in the alarm list:
UnitExternalEvent
String in the alarm log:
UnitExternalEvent
String in the alarm snapshot
UnitExternalEvent
There is an external event that has
caused the opening, for at least 5
seconds, of the digital input on the
controller board.
Check for reasons of external event
and if it can be a potential problem for
a correct chiller operation.
NOTE: What above applies in case of USER configuration of the external fault digital input as Event (see section
Errore. L'origine riferimento non è stata trovata.)
6.1.1.5 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.
6.1.1.6 Heat Recovery Leaving Water Temperature sensor fault
This alarm is generated any time that the input resistance is out of an acceptable range.
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Productinformatie
Merk | Daikin |
Model | EWAD620TZPLB |
Categorie | Airco |
Taal | Nederlands |
Grootte | 11976 MB |