2020 User Manual

Loading ...

Terminal Function Description

 Rc   Input 24VoltACCoolingTransformer

       (DualTransformerSystemsOnly)

 Rh   Input PowerConnection(24VoltACHeating

       TransformerorMillivoltPowerSource)

 O   Output ReversingValve(CoolActive)

 B   Output ReversingValve(HeatActive)

 Y1   Output CompressorRelay

 G   Output FanControl

 W1   Output ConventionalHeatRelay

 C   Input 24VoltACTransformerCommon

Connect Your Wires

Wiring Terminations

Terminal Function Description

W1/E   Output (W1)1stStageConventionalHeat

       (E)EmergencyHeatRelay

Y2   Output

2ndStageConventionalCoolingCompressor

 W2   Output 2ndStageHeat/AuxiliaryHeat

Additional Terminations (2220 only)

Provide Power

•For 24 Volt AC power,youmustconnectthecommonsideofthetrans-

 formertotheCterminalonthethermostatsub-base.

•For primary or back-up power,insertthe2supplied“AA”typealkaline

 batteriesintothebatterycompartmentlocatedintherearhousingofthe

 thermostat.MakesuretopositionthePositive(+)andNegative(-)sides

 ofthebatteriescorrectlywiththe+/-symbolsinthebatterycompartment.

24VAC Power

Terminal (C)

Loading ...

Braeburn 2020 Digital 5/2 Programmable Thermostat