Trane SCWM Series Installation, Operation And Maintenance Manual page 85

Table 25. General unit alarming (continued)
Diagnostic: Discharge Air High Temperature Source Failure (In Alarm)
Notification Class
HVAC Critical Alarm.
Duct Static Pressure Failure (In Fault)
Notification Class
HVAC Critical Alarm.
Diagnostic: Duct Static Pressure Failure (In Fault)
Notification Class
HVAC Critical Alarm.
PKG-SVX027D-EN
Action
Unit will shut down and be The discharge air
prevented from running until temperature is more than or
this sensor is in a normal equal to the Discharge Air
state. High Temperature Cutout for
10 minutes.
Action
Unit will shut down and be The Pressure sensor is
prevented from running until reading either above its
this sensor is in a normal maximum value or below is
state. minimum value, resulting in a
Fault Condition after 3 point
updates.
Action
Unit will shut down and be The Pressure sensor is
prevented from running until reading either above its
this sensor is in a normal maximum value or below is
state. minimum value, resulting in a
Fault Condition after 3 point
updates.
Typical Causes
Reason
• Hot Entering Air to the
unit.
• Hot Water valve stuck
open.
Typical Causes
Reason
• Sensor is not wired
properly: Verify sensor
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. Use
the Pressure
Transducer
Troubleshooting guide in
the IOM to diagnose if
the sensor is operating
properly.
Typical Causes
Reason
• Sensor is not wired
properly: Verify sensor
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. Use
the Pressure
Transducer
Troubleshooting guide in
the IOM to diagnose if
the sensor is operating
properly.
Diagnostics
Reset Required
Manual Reset Required once
the issue is resolved. User
must toggle the Alarm Reset
value.
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 Alarm Reset
value.
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