Handleiding
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Local HMI
Network
Auto
5.6.16 Low Pressure Ratio Alarm
This alarm indicates that the ratio between evaporating and condensing pressure is below a limit which depends on
compressor speed and guarantees the proper lubrication to compressor.
Symptom
Cause
Solution
Circuit status is Off.
The circuit is stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
CxCmp1 OffPrRatioLo
String in the alarm log:
± CxCmp1 OffPrRatioLo
String in the alarm snapshot
CxCmp1 OffPrRatioLo
Compressor is not able to develop the
minimum compression.
Check fan setpoint and settings, it
could be too low (A/C units).
Check compressor absorbed current
and discharge superheat.
Compressor can be damaged.
Check the correct operation of suction
/ delivery pressure sensors.
Check the internal relief valve didn’t
open during previous operation
(check the unit history).
Note:
If the difference between delivery and
suction pressure exceeds 22bar, the
internal relief valve open and need to
be replaced.
Inspect the gate rotors / screw rotor
for possible damages.
Check if the cooling tower or three-
way valves are operating correctly
and properly set.
Reset
Notes
Local HMI
Network
Auto
5.6.17 Maximum Number of Restart Alarm
This alarm indicates that for three consecutive times after the compressor start the evaporating pressure is under a
minimum limit for too much time
Symptom
Cause
Solution
Circuit status is Off.
The circuit is stopped.
Bell icon is moving on controller’s
display.
String in the alarm list:
Cx OffNbrRestarts
String in the alarm log:
± Cx OffNbrRestarts
String in the alarm snapshot
Cx OffNbrRestarts
Ambient temperature is too low
Check the operating envelope for this
machine.
Reset
Notes
Local HMI
Network
Auto
5.6.18 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
One or more condenser fans do not
operate properly (A/C units).
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 (A/C units).
Remove any obstacle.
Clean the condenser coil using soft
brush and blower.
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 |
