Daikin MICROTECH III Operating Manual page 51

10.8.5 High Discharge Temperature
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
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
Reset
Local HMI
Network
Auto
10.8.6 High Oil Pressure Difference
This alarm indicates that the oil filter is clogged and needs to be replaced.
Symptom
Circuit status is Off.
The circuit is stopped.
Bell icon is moving on controller's
display.
String in the alarm list:
CxCmp1 OffOilPrDiffHi
String in the alarm log:
CxCmp1 OffOilPrDiffHi
String in the alarm snapshot
CxCmp1 OffOilPrDiffHi
Reset
Local HMI
Network
Auto
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Cause
Liquid Injection solenoid valve is not
operating properly.
Liquid injection orifice is small.
Discharge temperature sensor could
not operate properly.



Cause
Oil filter is clogged.
Oil Pressure Transducer is reading
incorrectly.
Condensing Pressure Transducer is
reading incorrectly.



Operation Manual
Solution
Check the electrical connection
between the controller and the liquid
injection solenoid valve.
Check if the solenoid coil operates
properly.
Check if the digital output operates
correctly.
Check if when the liquid injection
solenoid is activated the temperature
can be controlled between the limits.
Check that the liquid injection line is
not obstructed by observing the
discharge temperature when it is
activated.
Check for proper operation of the
discharge temperature.
Notes
Solution
Replace oil filter.
Check Oil Pressure Transducer
readings with a gauge.
Check Condensing Pressure
Transducer readings with a gauge.
Notes
D–EOMWC00A07-16_02EN