PKG-SVX027C-EN
85
Table 32.
General unit alarming (continued)
HVAC Critical Alarm.
Unit will shut down and be
prevented from running
until this sensor is in a
normal state.
The temperature sensor is
reading either above is
maximum value or below
is minimum value,
resulting in a Fault
Condition after 3 point
updates.
•
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.
Verify if sensor has
any resistance on it,
should be 8-12k of
resistance on the
thermistor.
Manual Reset Required
once the issue is resolved.
User must toggle the
Alarm Reset value.
Diagnostic: Discharge Air Low Temperature Source Failure (In Alarm)
Notification Class
Action
Reason
Typical Causes
Reset Required
HVAC Critical Alarm.
Unit will shut down and be
prevented from running
until this sensor is in a
normal state.
The discharge air
temperature is less than
or equal to the Discharge
Air Low Temperature
Cutout for 10 minutes.
Cold entering air to the
unit.
Manual Reset Required
once the issue is resolved.
User must toggle the
Alarm Reset value.
Diagnostic: Discharge Air High Temperature Source Failure (In Alarm)
Notification Class
Action
Reason
Typical Causes
Reset Required
HVAC Critical Alarm.
Unit will shut down and be
prevented from running
until this sensor is in a
normal state.
The discharge air
temperature is more than
or equal to the Discharge
Air High Temperature
Cutout for 10 minutes.
•
Hot Entering Air to
the unit.
•
Hot Water valve stuck
open.
Manual Reset Required
once the issue is resolved.
User must toggle the
Alarm Reset value.
Duct Static Pressure Failure (In Fault)
Notification Class
Action
Reason
Typical Causes
Reset Required
