Braeburn 3020 Installer's Guide

Installer Guide 4
5 Installer Guide
Wiring Terminations for model 3220
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/E/W3 Output (W1)1stStageConventionalHeat,
   (E)EmergencyHeat,    
(W3)3rdStageAuxiliaryHeat
  W2 Output 2ndStageConventionalHeat  
O/B/V3 Output (O)CoolActiveReversingValve   
    (B)HeatActiveReversingValve
    (V3)ZoneValvePowerClose
  Y1 Output 1stStageCompressor
  Y2 Output 2ndStageCompressor
  L Input SystemMalfunctionIndicator
C Input 24VoltACTransformerCommon
  S1
  S2
Heat Only or Millivolt
Set System Type to 11CONV
Rh PowerConnection
W1 HeatRelay
Connecting Your Wires (continued)
1 HEAT / 1 COOL Single or Dual Transformer
Set System Type to 11CONV
Rh 24VoltACPower(heatingtransformer)[note 2]
Rc 24VoltACPower(coolingtransformer)[note 2]
W1 HeatRelay
Y1 CompressorRelay
G FanRelay
C 24VoltACTransformerCommon[note 1, 3]
NOTES - Conventional Systems
[1]Optional24VoltACcommonconnection.
[2]Removefactoryinstalledjumperfordual
 transformersystems.
[3]Indualtransformersystems,transformer
 commonmustcomefromcoolingtransformer.
[4]ConnectY2onlyifasecondcoolingcompressor
 isbeingused.
Provide disconnect and overload protection as required.
2 HEAT / 2 COOL Single or Dual transformer
Set System Type to 22CONV
Rh 24VoltACPower(heatingtransformer)[note 2]
Rc 24VoltACPower(coolingtransformer)[note 2]
W1 HeatRelayStage1
W2 HeatRelayStage2
Y1 CompressorRelayStage1
Y2 CompressorRelayStage2 [note 4]
G FanRelay
C 24VoltACTransformerCommon[note 1, 3]
3
Input OptionalRemoteSensor(indoororoutdoor)
Typical Wiring Congurations
NOTE: The “System Type” option will be configured in the Installer Settings section. The 3020 is a single stage
thermostat and not intended for multi stage equipment.
Conventional Systems
NOTE: Additional options are configured in the
Installer Settings section.
S1
S2
NOTES - Additional Wiring Options
[1]Theseterminalscanbeusedtoconnecta
 Braeburn
®
indoororoutdoorremotesensor.
Additional Wiring Options
IndoororOutdoorRemoteSensor[note 1]
Hydronic Heat Only
Set System Type to 1HD
Rh 24VoltACPower(heatingtransformer)
W1 ZoneValvePowerOpen
V3 ZoneValvePowerClose
C 24VoltACTransformerCommon[note 1]
Hydronic Heat / 1 Cool
Set System Type to 11HD
Rh 24VoltACPower(heatingtransformer)[note 2]
Rc 24VoltACPower(coolingtransformer)[note 2]
W1 ZoneValvePowerOpen
V3 ZoneValvePowerClose
Y1 CompressorRelay
G FanRelay(coolingfanonly)
C 24VoltACTransformerCommon[note 1, 3]

Braeburn 3020 Specifications

General

Brand	Braeburn
Model	3020
Category	Thermostat
Language	English