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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
73
6.1.7.2 High Pressure alarm
This alarm is generated in case the Condenser saturated temperature rise above the Maximum
condenser saturated temperature and the control is not able to compensate to this condition. The
maximum condenser saturated temperature is 68.5°C but it can decrease when the evaporator
saturated temperature become negative.
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 OffCndPressHi
String in the alarm log:
CxCmp1 OffCndPressHi
String in the alarm snapshot
CxCmp1 OffCndPressHi
One or more condenser fans do not
operate properly.
Check if fans protections have been
activated.
Check that the fans can turn freely.
Check that there is not any obstacle
to the free ejection of the air blown.
Dirty or partially blocked condenser
coil.
Remove any obstacle;
Clean the condenser coil using soft
brush and blower.
Inlet air temperature of the condenser
is too high.
The air temperature measured at the
inlet of the condenser may not exceed
the limit indicated in the operational
range (working envelope) of the
chiller.
Check the location where the unit is
installed and check that there are no
any short circuit of the hot-air blown
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.
Condensing pressure transducer
could not operate properly.
Check for proper operation of the high
pressure sensor.
6.1.7.3 Mechanical High Pressure Alarm
This alarm is generated when the condenser pressure rises above the mechanical high pressure
limit causing this device to open the power supply to all the auxiliary relays. This causes an
immediate shutdown of compressor and all the other actuators in this circuit.
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 OffMechPressHi
String in the alarm log:
CxCmp1 OffMechPressHi
String in the alarm snapshot
CxCmp1 OffMechPressHi
One or more condenser fans do not
operate properly.
Check if fans protections have been
activated.
Check that the fans can turn freely.
Check that there is not any obstacle
to the free ejection of the air blown.
Dirty or partially blocked condenser
coil.
Remove any obstacle;
Clean the condenser coil using soft
brush and blower.
Inlet air temperature of the condenser
is too high.
The air temperature measured at the
inlet of the condenser may not exceed
the limit indicated in the operational
range (working envelope) of the
chiller.
Check the location where the unit is
installed and check that there are no
any short circuit of the hot-air blown
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 |
