Trane SCWM Series User Manual

PKG-SVX027D-EN
77
Table 22. Compressor alarming
Diagnostic: Compressor (1-4) Discharge Pressure 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 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) Discharge 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 or
Below its 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, fault clears once
sensor is in a normal state.
Diagnostic: Compressor (1-4) Suction Pressure Sensor Failure (In Alarm)
Notification Class Action Reason
Typical Causes Reset Required
Diagnostics

Trane SCWM Series Specifications

General

Brand	Trane
Model	SCWM Series
Category	Industrial Equipment
Language	English