Trane Symbio 700 Controller - Diagnostics and Alarm Indicator Status

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ACC-APG002A-EN
Gas Heat
Table 23. Gas heat staging
Unit Operation Unit Response
Gas Heat Stage 1 Gas Valve Stage 1 ON
Gas Heat Stage 2 Gas Valve Stage 2 ON
Diagnostics and Alarm Indicator Status
Table 24. Supported diagnostics and alarm relay functionality
Diagnostic/Alarm
Alarm Indicator
Diagnostic: Unit Communications Failure
Y
On-Board I/O Communication Status Y
Customer Options Module Communication Status
Y
Indoor Options Module Communication Status
Y
Heat Options Module Communication Status
Y
Stepper Motor Module Communication Status
Y
Diagnostic: Excessive Outdoor Air
Y
Diagnostic: Outdoor Air Damper Not Modulating
Y
Diagnostic: Unit Economizing When It Should Be
Y
Diagnostic: Unit Not Economizing When It Should
Y
Diagnostic: Gas Heat Supply Airflow Limit Trip
Y
Diagnostic: Heat Failure
Y
Diagnostic: IGN1 Module Lockout
N
Diagnostic: IGN1 Heating High Temp Limit Open
N
Diagnostic: IGN1 Flame Rollout Switch Open
N
Diagnostic: IGN1 Inducer Proving Switch Fail Closed
N
Diagnostic: IGN1 Inducer Proving Switch Fail Open
N
Diagnostic: IGN1 No Flame Sensed on Ignition
N
Diagnostic: IGN1 Flame Sensed w/Gas Valve Off
N
Diagnostic: IGN1 Hardware Configuration Error
N
Diagnostic: IGN1 Weak Flame
N
Diagnostic: IGN1 Gas Valve Error
N
Diagnostic: IGN1 Module Failure
N
Diagnostic: Circuit 1 LPC Lockout
Y
Diagnostic: Circuit 2 LPC Lockout
Y
Diagnostic: Compressor 1 Proving Lockout
Y
Diagnostic: Compressor 2 Proving Lockout
Y
Diagnostic: Compressor 1 Contactor Failure
Y
Diagnostic: Compressor 2 Contactor Failure
Y
Diagnostic: Circuit 1 LPC Trip
N
Appendix A