Braeburn 3020 - About Your Thermostat

Thermostat Location
Installthethermostatapproximately5feet(1.5m)abovetheoorinanareathathasagoodamountofair
circulationandmaintainsanaverageroomtemperature.
Avoidinstallationinlocationswherethethermostatcanbeaffectedbydrafts,deadairspots,hotorcoldair
ducts,sunlight,appliances,concealedpipes,chimneysandoutsidewalls.
Installer Guide 2
3 Installer Guide
Install your new Braeburn thermostat in 4 basic steps:
1 InstalltheSub-Base
2 ProvidePower
3 ConnectYourWires
4 AttachThermostattoSub-Base
Install the Sub-Base:
•Removethesub-basefromthebodyofthethermostat.
•Mountthesub-baseasshownbelow:
Warning
Disconnect power before beginning installation.
Provide Power
C
24VAC Power Terminal (C)
2
Installation and Wiring
1
2
Wiring Terminations for model 3020
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)
G Output FanControl
 W1 Output ConventionalHeatRelay
O/B/V3 Output (O)CoolActiveReversingValve   
   (B)HeatActiveReversingValve
    (V3)ZoneValvePowerClose
 Y1 Output CompressorRelay
 C Input 24VoltACTransformerCommon
 S1
 S2
Connect Your Wires
3
Input OptionalRemoteSensor(indoororoutdoor)
UP
UP
Drill 3/16” pilot holes in your
desired location. Use supplied
anchors for drywall or plaster.
+
+
• For24VoltACpower,youmustconnectthecommonsideofthetransformertotheCterminalonthethermostatsub-base.In
 dualtransformerinstallations,thetransformercommonmustcomefromthecoolingtransformer.
• Forbattery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.
Batteries Installed as Shown