Instructions / Assembly

PG 16

Multi-stage Heat and Multi-stage Cool

The CT80 can handle up to 3 stages of HEAT and 2 stages of COOL.

STEP 1 - Connect the W, W2 and W3 wires to the W terminals. This

connects the stages of HEAT.

STEP 2 - Connect the Y and Y2 wires to the Y terminals.

This connects the stages of COOL.

STEP 3 - STEP 5 - Connect the R (or RH) wire to the RH

terminal. This connects the power.

STEP 4 - Connect the G wire to the G terminal. This connects the fan.

STEP 5 - Connect the C wire to the C terminal.

Your HVAC system is now connected to the CT80.

Please Go To Page 6

Heat Pump (heat/cool) without Auxiliary Heat

STEP 1 - Connect O wire to the O terminal or B wire to the B. This connects the change-over valve.

If you have both O and B - connect only the O wire to the O terminal and DO NOT connect B to B

terminal (see wire reference under Trane for B wire terminal).

STEP 2 - Connect the Y wire(s) to the Y terminal(s).

This connects the compressor (stages).

STEP 3 - Connect the R (or RH) wire to RH.

This connects the power.

STEP 4 - Connect the G wire to the G. This connects the fan.

STEP 5 - Connect the C wire to the C terminal.

Your HVAC system is now connected to the CT80.

Please Go To Page 6

RC and RH

connected

RC and RH

connected

HVAC SYSTEM

POWER

Y Y

W3W2

THERMOSTAT TERMINALS

C H B O W

G A

HVAC SYSTEM

POWER

Y Y

THERMOSTAT TERMINALS

C H B O W

G A