Trane SCWM Series User Manual

78
PKG-SVX027D-EN
Table 22. Compressor alarming (continued)
HVAC Critical Alarm. Compressor will be locked
out and prevented from
running until this diagnostic is
cleared.
The Pressure sensor is
calculated to be in fault and
the unit has locked out the
compressor from operation.
• Sensor has lost its 5 Vdc
Source Signal. Verify
that the sensor has 5
Vdc.
• 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.
• System has no charge:
Verify that the system
has a refrigerant charge.
• Sensor has failed.
Manual Reset required once
the sensor is in a Normal
State. User must toggle the
Compressor (1-4) Failure
Reset.
Diagnostic: Compressor (1-4) Suction Pressure Sensor Failure (In Fault)
Notification Class Action Reason
Typical Causes Reset Required
HVAC Critical Alarm. Compressor will be locked
out and prevented from
running until this sensor is in
a normal state.
The Pressure sensor is
reading either above is
maximum value or below is
minimum value, resulting in a
Fault Condition after 3 point
updates.
• Sensor has lost its 5 Vdc
Source Signal. Verify
that the sensor has 5
Vdc.
• 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.
System has no
charge: Verify that
the system has a
refrigerant charge.
• Sensor has failed.
None, alarm clears once
sensor is in a normal state.
Diagnostic: Compressor (1-4) Suction Temperature Sensor Failure (In Alarm)
Notification Class Action Reason
Typical Causes Reset Required
HVAC Critical Alarm. Compressor will be locked
out and prevented from
running until this diagnostic is
cleared.
The Temperature sensor is
calculated to be in fault and
the unit has locked out the
compressor from operation.
• 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.
• Sensor has failed. Verify
if sensor has any
resistance on it, should
be 8-12k of resistance
on the thermistor.
Manual Reset required once
the sensor is in a Normal
State. User must toggle the
Compressor (1-4) Failure
Reset.
Diagnostics

Trane SCWM Series Specifications

General

Brand	Trane
Model	SCWM Series
Category	Industrial Equipment
Language	English