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Air cooled inverter water chiller
OPERATION
MANUAL
Operation Manual
74
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
from the fans of the same unit, or
even from fans of next chillers (Check
IOM for proper installation).
One or more condenser
fan turning in wrong
direction.
Check for correct phases sequence
(L1, L2, L3) in the electrical
connection of the fans.
Excessive charge of
refrigerant into the unit.
Check liquid sub-cooling and suction
super-heat to control indirectly the
correct charge of refrigerant.
If necessary recover all the refrigerant
to weight the entire charge and to
control if the value is in line with kg
indication on unit label.
Mechanical high pressure switch is
damaged or not calibrated.
Check for proper operation of the high
pressure switch.
6.1.7.4 High Discharge Temperature Alarm
This alarm indicates that the temperature at the discharge port of the compressor exceeded a
maximum limit which may cause damages to the mechanical parts of the compressor.
When this alarm occurs compressor’s crankcase and discharge pipes may become very hot. Be
careful when getting in contact with the compressor and discharge pipes in this condition.
Symptom
Cause
Solution
Circuit status is Off.
The compressor does not load
anymore or even unload, circuit is
stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 OffDischTmpHi
String in the alarm log:
CxCmp1 OffDischTmpHi
String in the alarm snapshot
CxCmp1 OffDischTmpHi
Liquid Injection is not operating
properly.
Check the electrical connection
between the controller and the liquid
injection solenoid valve.
Check that the liquid injection line is
not obstructed by observing the
discharge temperature when it is
activated.
Liquid injection orifice is small.
Check if when the liquid injection
solenoid is activated the temperature
can be controlled between the limits.
Discharge temperature sensor could
not operate properly.
Check for proper operation of the
discharge temperature
6.1.7.5 High Motor Temperature Alarm
This alarm indicates that the motor temperature has exceeded the maximum temperature limit for
safe operations.
Symptom
Cause
Solution
Circuit status is Off.
The compressor does not load
anymore or even unload, circuit is
stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 OffMotorTempHi
String in the alarm log:
CxCmp1 OffMotorTempHi
String in the alarm snapshot
CxCmp1 OffMotorTempHi
Insufficient motor cooling
Check refrigerant charge.
Check if operational envelope of the
unit is respected.
Motor temperature sensor could not
operate properly.
Check the readings of the motor
temperature sensor and check the
Ohmic value. A correct reading
should be around hundreds of Ohm at
ambient temperature.
Check the electrical connection of the
sensor with the electronic board.
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 |
