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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.
Note: These Alarms will affect the operation of the compressor.
Table 30. Compressor warning
Warning: Compressor 1 Cond Limit Status (In Alarm)
Notification Class
HVAC Warning.
Warning: Compressor 1 Frostat Limit Status (In Alarm)
Notification Class
HVAC Warning.
Warning: Compressor (2-4) High Discharge Press Warning (In Alarm)
Notification Class
82
Compressor will be locked
The Compressor
out and prevented from
Protection module has
running until this
indicated an alarm or the
diagnostic is cleared.
Compressor is
commanded on but does
not indicate status.
Action
Compressor speed will be
Head Pressure has
limited to keep the
exceeded the condenser
compressor from
Control Pressure
exceeding the Condenser
Setpoint.
Control Pressure
Setpoint.
Action
Compressor speed will be
The Saturated suction
limited to keep the
refrigerant temperature is
compressor from causing
calculated to be below 36
frost buildup on the
degrees.
evaporator coil.
Action
•
VFD has an issue.
•
Relay starting
compressor is
malfunctioning.
•
XM Module
commanding
compressor relay is
failed or not
communicating.
Typical Causes
Reason
•
High Condenser
Water Temperature.
•
Malfunctioning TXV.
•
Non Condensable in
the refrigerant.
•
Low water flow in the
condenser, or no
water flow.
•
Condenser Valve
malfunctioning.
Typical Causes
Reason
•
Low Airflow across
the coil.
•
Malfunctioning TXV.
•
Dirty Air Filters.
•
Dirty Evaporator Coil.
Typical Causes
Reason
Manual Reset required
once the issue is resolved.
User must toggle the
Compressor 1 Failure
Reset.
Reset Required
No Reset required,
Warning clears when
conditions no longer
exists.
Reset Required
No Reset required,
Warning clears when
conditions no longer
exists.
Reset Required
PKG-SVX027C-EN
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