Trane Tracer ZN511 User Manual

Chapter 8 Status indicators for operation and communication
64 CNT-SVX06B-EN
Table 19. Diagnostics for 1 heat/1 cool configurations
Diagnostic Probable cause Consequences
Diagnostic type
1
Maintenance Required Fan run hours exceed the
time set to indicate filter
change
Fan unaffected
Valves unaffected
Electric heat unaffected
Damper unaffected
Informational
Condensate Overflow The drain pan is full of
water
Fan off
Valves closed
Electric heat off
Compressors off
Damper closed
Manual
Low Temp Detection The leaving fluid temper-
ature is close to freezing
Fan off
Valves open
Electric heat off
Damper closed
Smart reset/Manual
Zone Temp Failure Invalid or missing value
for zone temperature
Fan off
Valves closed
Electric heat off
Compressors off
Damper closed
Automatic
Entering Water Temp
Failure
Invalid or missing value
for zone temperature
Fan unaffected
Valves unaffected
2
Electric heat unaffected
2
Damper unaffected
2
Automatic
Discharge Air Temp
Failure
Invalid or missing value
for zone temperature
Fan unaffected
Valves unaffected
Electric heat unaffected
Damper unaffected
Automatic
Setpoint Failure Invalid or missing value
for zone set point
Fan unaffected
Valves unaffected
Electric heat unaffected
Damper unaffected
Automatic
Fan Mode Failure Zone set point Fan unaffected
Valves unaffected
Electric heat unaffected
Compressors unaffected
Damper unaffected
Automatic
Invalid Unit Configura-
tion
Software configuration is
done improperly
Fan off
Valves closed
Electric heat off
Compressors off
Damper closed
Manual
1 For more information on types of diagnostics and how they are cleared from the controller, see “Clearing diagnos-
tics” on page 66.
2 When the entering water temperature is required but not present, the 1 heat/1 cool unit generates a diagnostic to
indicate the sensor loss condition. The controller automatically clears the diagnostics once a valid entering water
temperature value is present (nonlatching diagnostic). When the entering water temperature fails, the controller pro-
hibits all cooling operating, but allows the delivery of heat when heating is required. In cool mode, all cooling is
locked out, but normal fan and damper operation is permitted.

Trane Tracer ZN511 Specifications

General

Brand	Trane
Model	Tracer ZN511
Category	Controller
Language	English