Symbio® 700 V9.00.00XX Coming Soon (September 2026)
Download the latest version of Symbio 700 firmware from Trane Software Download Page
When to update Firmware: Guidelines and Best Practices for Updating Firmware
Voyager 3™ 27.5-50 Tons, 60 Hz and 22.9-41.7 Tons, 50 Hz
New/Improved Features Supported:
- No change from the previous release
Field reported items addressed:
- None listed
Precedent™ 3-25 Tons
New/Improved Features Supported:
- Support for field-provided Hot Water Coil valve control
- Support for Modulating Electric Heat across all tonnages
- Support for Secondary Heat Outdoor Air Temperature Lockout Setpoint functionality
- Support for Heating Capacity Primary Limit and Heating Capacity Secondary Limit
- Enhanced Heating Remote Capacity Control Scheme
- Improvement to dehumidification mode sequence when using a humidistat; exit criteria now include the Dehumidification Disable Space Temperature Setpoint.
- Improved reheat valve sequencing during dehumidification for a more responsive comfort control sequence.
- Enabled Pre-Cool and Morning Warm-up by default.
- Improved Supply Air Tempering transitions after dehumidification operation.
- Improvement to Heat Pump Heating Switchover functionality for more consistent Occupied and Unoccupied operation.
- Improve Symbio 700 support for TGP2 programs.
- Addition of Relief Fan Status datalog into the standard factory trends.
Field reported items addressed:
- Improved unit response during IMC communication events when used with supported factory smoke detector or ventilation override configurations.
- Improved SC+ graphic support for heat pump-configured applications.
- BACnet IP network number default value changed to "0".
- Fixed Air-Fi zone sensor interaction for supply fan configuration.
- Improved VVDA unit operation for 3rd party relay-controlled occupied/unoccupied applications.
- Improvement to Supply Fan operating during fan-only mode.
- Fixed supply fan sequencing during unoccupied heating operation for CVZT and VVZT unit types.
- Fixed alarm communication to Tracer SC+ through LonTalk.
- Addressed condensate overflow response issue for VVDA units with invalid Space Temperature Active.
- Improvement to reversing valve control for heat pump units operating out of conventional thermostats.
- Fixed Non-thermostat Tempering control sequence to better maintain discharge air temperature target.
- Fixed supply fan operation during occupied-to-unoccupied transitions for heat pump units.
- Fixed status reporting economizer decision method to align with configured economizer type.
Axiom™ Rooftop Water Source Heat Pumps 3-25 Ton
New/Improved Features Supported:
- Support for Secondary Heat Outdoor Air Temperature Lockout Setpoint functionality
- Support for Heating Capacity Primary Limit and Heating Capacity Secondary Limit
- Enhanced Heating Remote Capacity Control Scheme
- Improvement to dehumidification mode sequence when using a humidistat; exit criteria now include the Dehumidification Disable Space Temperature Setpoint.
- Improved reheat valve sequencing during dehumidification for a more responsive comfort control sequence.
- Enabled Pre-Cool and Morning Warm-up by default.
- Improved Supply Air Tempering transitions after dehumidification operation.
- Improvement to Heat Pump Heating Switchover functionality for more consistent Occupied and Unoccupied operation.
- Improve Symbio 700 support for TGP2 programs.
- Addition of Relief Fan Status datalog into the standard factory trends.
Field reported items addressed:
- Improved unit response during IMC communication events when used with supported factory smoke detector or ventilation override configurations.
- BACnet IP network number default value changed to "0".
- Fixed Air-Fi zone sensor interaction for supply fan configuration.
- Improved VVDA unit operation for 3rd party relay-controlled occupied/unoccupied applications.
- Improvement to Supply Fan operating during fan-only mode.
- Fixed supply fan sequencing during unoccupied heating operation for CVZT and VVZT unit types.
- Fixed alarm communication to Tracer SC+ through LonTalk.
- Addressed condensate overflow response issue for VVDA units with invalid Space Temperature Active.
- Improvement to reversing valve control for heat pump units operating out of conventional thermostats.
- Fixed Non-thermostat Tempering control sequence to better maintain discharge air temperature target.
- Fixed supply fan operation during occupied-to-unoccupied transitions for heat pump units.
- Fixed status reporting economizer decision method to align with configured economizer type.
Foundation™ 15-25 Ton
New/Improved Features Supported:
- No change from the previous release
Field reported items addressed:
- None Listed.
Odyssey™ 6-25 Ton (60Hz), 5-20.9 Ton (50 Hz)
New/Improved Features Supported:
- Improved secondary heat outdoor air temperature lockout crossover operation.
- Improve Symbio 700 support for TGP2 programs.
Field reported items addressed:
- Fixed supply fan operation during occupied-to-unoccupied transitions for heat pump units.