Diagnostics - Trane Tracer ZN510 Installation, Operation, And Programming

Table 17: ZN510 controller diagnostics
Diagnostic
Condensate overflow
Low temp detect - Crt 1
Low temp detect - Crt 1
Low temp detect - Crt 1 and 2
High/low press cutout - Crt 1
High/low press cutout - Crt 2
High/low press cutout - Crt 1 and 2
Space temperature failure*
Leaving water temp failure
Discharge air temp failure*
Maintenance required
(example: Filter Status)
Local setpoint failure*
Local fan mode failure*
Invalid unit configuration
High/low pressure cutout and low temperature detection diagnostics for heat pump configurations isolate
each circuit and independently disable compressor operation. For single compressor units, these diagnostics cause
the compressor to shut down, the unit fan to be controlled off, and the outdoor air damper to be closed (when
present).
When BOP 6 is configured as a generic binary output, BOP 6's state is unaffected by all unit diagnostics.
* Note: Non-latching diagnostics automatically reset when the input is present and valid.

Diagnostics

Fan
Compressors: Off
Off
Damper: Closed
Compressor 1: Off
Enabled Compressor 2: See note below.
Damper: See note below.
Compressor 1: See note below.
Enabled Compressor 2: Off
Damper: See note below.
Compressor 1: Off
Off Compressor 2: Off
Damper: Closed
Compressor 1: Off
Enabled Compressor 2: See note below.
Damper: See note below.
Compressor 1: See note below.
Enabled Compressor 2: Off
Damper: See note below.
Compressor 1: Off
Off Compressor 2: Off
Damper: Closed
Compressor(s): Off
Off
Damper: Closed
Compressor 1: Off
Compressor 2: See note below.
Enabled
Damper: See note below.
Compressor(s): No action
Enabled
Damper: No Action
Compressor(s): No action
Enabled
Damper: No Action
Compressor(s): Enabled
Enabled
Damper: Enabled
Compressor(s): Enabled
Enabled
Damper: Enabled
Compressor(s): Disabled
Disabled
Damper: Disabled
27
Other Outputs