Trane Symbio 700 Controller User Manual

ACC-APG002A-EN
49
Fault Fault Detection Symbio 700 Response Response
Type
Diagnostic: IGN1 Flame
Sensed w/Gas Valve Off
Gas Heat Ignition Module via
Modbus
Status Only (Ignition Module Lockout)
Auto Reset
Diagnostic: IGN1 Hardware
Configuration Error
Gas Heat Ignition Module via
Modbus
• All heating operation is terminated/
disabled
• Diagnostic: Heat Failure set to Active
Auto Reset
Diagnostic: IGN1 Weak
Flame
Gas Heat Ignition Module via
Modbus
Status Only
Auto Reset
Diagnostic: IGN1 Gas Valve
Error
Gas Heat Ignition Module via
Modbus
Status Only (Ignition Module Lockout)
Auto Reset
Diagnostic: IGN1 Module
Failure
Gas Heat Ignition Module via
Modbus
Status Only (Ignition Module Lockout)
Auto Reset
Gas Heat Ignition Module 1
Communication Status is “Not
Communicating”
When Gas Heat Ignition
Module 1 Communication
Status is “Not
Communicating” for 30
continuous seconds.
• All heating operation is terminated/
disabled
• Diagnostic: Heat Failure set to Active
Auto Reset
Economizer Fault
Table 10. Economizer cooling failure modes and system response
Economizer Control Failure Mode
Economizer Cooling Response
Comparative Enthalpy
Return Air Humidity Sensor Absolute (Reference) Enthalpy
Return Air Temperature Sensor Absolute (Reference) Enthalpy
Outdoor Air Temperature Sensor
• Economizer Cooling Disabled
• OA Damper Closes to Economizer
Minimum Position Setpoint Control
Outdoor Air Humidity Sensor
Absolute Temperature (Reference Dry
Bulb)
Reference Enthalpy
Outdoor Air Temperature Sensor
• Economizer Cooling Disabled
• OA Damper Closes to Economizer
Minimum Position Setpoint Control
Outdoor Air Humidity Sensor
Absolute Temperature (Reference Dry
Bulb)
Dry Bulb Outdoor Air Temperature Sensor
• Economizer Cooling Disabled
• OA Damper Closes to Economizer
Minimum Position Setpoint Control
Differential Dry Bulb
Outdoor Air Temperature Sensor
• Economizer Cooling Disabled
• OA Damper Closes to Economizer
Minimum Position Setpoint Control
Return Air Temperature Sensor
Absolute Temperature (Reference Dry
Bulb)
Fresh Air Options Module
Communications Failure
All economizing operation is
discontinued
Outdoor Air Damper Fault Detection and Diagnostics (FDD)
The outdoor air damper fault will have two fault detection components, faults that are generated when
operating in minimum ventilation mode and another set when the damper is being controlled by the
economizer:
Troubleshooting

Trane Symbio 700 Controller Specifications

General

Brand	Trane
Model	Symbio 700 Controller
Category	Controller
Language	English