2020 User Manual

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Factory Setting

Switch Default Options Comments

NOTES - Heat Pump Systems

[1]Ifbatteriesareinstalledthe24VoltACcommonconnectionisoptional.

[2]SelectOforcoolactiveor Bforheatactive.

[3]InstallaeldsuppliedjumperbetweentheW2 and Eterminalsif

 thereisnoseparateemergencyheatrelayinstalled.

Provide disconnect and overload protection as required.

 CONV/HP CONV

 F/C F

 HE/HG HG

Set Installer Switches

 CONV Selectforconventionalsystems

 HP Selectforheatpumpsystems

 F Selectforfahrenheittemperaturescale

 C Selectforcelsiustemperaturescale

 HG Selectforgasheat

 HE Selectforelectricheat

Typical Wiring Conﬁgurations

NOTE: The “Installer Switch” option will be conﬁgured in the next step.

Heat Pump Systems

1 HEAT / 1 COOL - No Auxiliary Heat

Set Installer Switch to HP

Rh 24VoltACPower

Rc ConnectedtoRhwithsuppliedJumperWire

O or B

 ChangeoverValve [note 2]

Y1 CompressorRelay

G FanRelay

C 24VoltACTransformerCommon [note 1]

2 HEAT / 1 COOL - Including Auxiliary Heat (2220 only)

Set Installer Switch to HP

Rh 24VoltACPower

Rc ConnectedtoRhwithsuppliedJumperWire

O or B

 ChangeoverValve[note 2]

CompressorRelay(1ststageheating/cooling)

W2 AuxiliaryHeatRelay(2ndstageheating)

[note 3]

E EmergencyHeatRelay[note 3]

G FanRelay

C 24VoltACTransformerCommon [note1]

TheInstallerswitchesarelocatedonthebackofthethermostatandmust

beproperlysetforthisthermostattooperateproperly.

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Braeburn 2020 Digital 5/2 Programmable Thermostat