Pairing A & B: Symbio Condenser Or Heat Pump With Constant Volume Air Handler Or Szvav / 2 Speed Air Handler; Pairing C: Legacy Electromechanical Condenser With Symbio 2-Speed Air Handler - Trane SYMBIO 700 Troubleshooting Manual

Pairing A & B: Symbio Condenser or Heat Pump with Constant Volume Air Handler
or SZVAV / 2 Speed Air Handler
1. Wire Zone Sensor to J19 or Thermostat to J21 on the Symbio 700 UC in the outdoor unit.
Connections between Condenser and Air Handler
2. All A and B Pairings
Thermostat Wire – 4 wires (recommend running wires in step 3 on all A & B Pairings)
a. Symbio Condenser Adapter Board J15-1 & 2 to Symbio Air Handler Relay Board J10-1 & 2. (power
for Air Handler RB)
b. Symbio Condenser Adapter Board J18-1 to Symbio Air Handler Relay Board J5-4. (indoor fan run)
c. Symbio Condenser (UC) J16-2 to Symbio Air Handler Relay Board J5-1. (EDC)
d. If using the EDC in the Air Handler – in Edit Configuration set Demand Management to Demand
Limit and in Settings, Refrigeration set Cooling Demand Limit Capacity Enable Setpoint to 0%
3. With VFD or Electric Heat (or if Electric Heat will be added in the future)
Thermostat Wire – 2 Wires inside Air Handler
a. Symbio Condenser Relay Board J10-1 & 2 to Symbio Air Handler Relay Board J4-1 & 2.
Shielded Twisted Pair (ground shield in air handler)
b. Symbio Condenser Adapter Board J15-3 & 4 to Symbio Air Handler Relay Board J4-3 & 4.
4. VFD Units only
Thermostat Wire – 1 Wire
a. Symbio Condenser Adapter Board J16-3 to Symbio Air Handler Relay Board J7-3
Shielded Twisted Pair (ground shield in air handler)
b. Symbio Condenser Adapter Board J16-1 & 2 to Symbio Air Handler Relay Board J7-1 & 2

Pairing C: Legacy Electromechanical Condenser with Symbio 2-Speed Air Handler

Install wiring from room thermostat to Air Handler Relay Board J5
Connections between Condenser and Air Handler
1. Thermostat Wire – 4 wires
a. Electromechanical Condenser LTB1-R to Symbio Air Handler Relay Board J10-1.
b. Electromechanical Condenser LTB1-B1 to Symbio Air Handler Relay Board J10-2.
c. Electromechanical Condenser LTB1-Y1 to Symbio Air Handler Relay Board J5-5.
d. Electromechanical Condenser LTB1-Y2 to Symbio Air Handler Relay Board J5-6.
2. Evaporator Coil Defrost Control: For operation Electromechanical condensers, change the wiring on
the switch to the Normally Closed position and connect the wires from the switch to the wires from the
legacy condenser that control this function.
3. Electric Heat (when installed) - For all wiring associated with electric heat, refer to Air Handler unit schematic
and Electric Heat Accessory Installation Guide (ACC-SVN91*-EN).
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