Symbio® 700 V8.00.0011 (February 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:

• Support for new Trane Cell Modem
• Improvement to dehumidification reheat valve initialization sequence

Field reported items addressed:

• Outdoor Air Flow (nvoOAFlow) is not reporting correctly when communicating using LonTalk
• Units equipped w/Modulating Gas Heat will not use additional heat stages when A03 diagnostic is present on the ignition module.

Precedent™ 3-25 Tons

New/Improved Features Supported:

Field reported items addressed:

• None Listed.

Axiom™ Rooftop Water Source Heat Pumps 3-25 Ton

New/Improved Features Supported:

Field reported items addressed:

• None Listed.

Foundation™ 15-25 Ton

New/Improved Features Supported:

• Support for new Trane Cell Modem.
• Symbio Service and Installation Mobile app configuration help.

Field reported items addressed:

• None Listed.

Odyssey™ 6-25 Ton (60Hz), 5-20.9 Ton (50 Hz)

New/Improved Features Supported:

• Support for new Trane Cell Modem.
• Support for Odyssey new Heat Pump tonnages: 12.5T and 25T
• Support for Heating Primary Capacity Limit and Heating Secondary Capacity Limit
• Support for Secondary Heat Outdoor Air Temperature Lockout Setpoint functionality
• Support for supply air tempering when configured for thermostat control

• Added flexibility to Heat Pump heating changeover decision (switching from heat pump heating to Secondary Heat)

   

Field reported items addressed:

• Addressed issue on units using LonTalk protocol, where Outdoor Air Damper Status (nvoUnitstatus) reported incorrectly.
• Symbio 700 Economizer Decision Method Does Not Match Economizer Type Configuration