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D D i i a a g g n n o o s s t t i i c c s s
Table 29. Compressor alarming (continued)
HVAC Critical Alarm.
Compressor (1-4) High Pressure Cutout (In Alarm)
Notification Class
HVAC Critical Alarm.
Diagnostic: Compressor (1-4) Frostat (In Alarm)
Notification Class
HVAC Critical Alarm.
Diagnostic: Compressor (1-4) High Superheat (In Alarm)
80
Compressor will be locked
The temperature sensor is
out and prevented from
reading either above is
running until this
maximum value or below
diagnostic is cleared.
is minimum value,
resulting in an Alarm
Condition after 3 point
updates.
Action
The High Pressure cutout
The temperature sensor is
switch is reading a closed
reading either above is
condition which indicates.
maximum value or below
is minimum value,
resulting in an Alarm
Condition after 3 point
updates.
Action
Compressor will be locked
The Calculated Saturated
out and prevented from
Suction Refrigerant
running until this
Temperature is below 32
diagnostic is cleared.
degrees for 5 minutes.
•
Sensor is not wired
properly: Verify
wiring to the XM
Module.
•
XM Module is not
communicating.
Ensure that the XM
Module is up and
talking to the UC600.
•
Discharge Pressure is
too high and over the
cutout threshold of
the High Pressure
Switch. Verify
Condenser Pressure.
•
Cutout Switch has
failed.
Typical Causes
Reason
•
Sensor is not wired
properly: Verify
wiring to the XM
Module.
•
XM Module is not
communicating.
Ensure that the XM
Module is up and
talking to the UC600.
•
Discharge Pressure is
too high and over the
cutout threshold of
the High Pressure
Switch. Verify
Condenser Pressure.
•
Cutout Switch has
failed.
Typical Causes
Reason
•
Low Airflow across
the Evaporator.
•
Partially blocked
Evaporator.
•
Dirty Air Filter.
•
Dirty Evaporator Coil.
Manual Reset required
once the sensor is in a
Normal State. User must
toggle the Compressor
(1-4) Failure Reset.
Reset Required
None, alarm clears once
sensor is in a normal
state.
Reset Required
Manual Reset required
once the issue is resolved.
User must toggle the
Compressor (1-4) Failure
Reset.
PKG-SVX027C-EN
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