User Guide

4
Heat Only or Millivolt
Set Installer Switch to NORM
Rh*  PowerConnection
W HeatRelay(appearsasW1/Eon2200NC)
G FanRelay[note 4]
C 24VoltACTransformerCommon[note 1]
1 HEAT / 1 COOL Single or Dual Transformer
Set Installer Switch to NORM
Rh* 24VoltACPower(heatingtransformer)[note 2]
Rc* 24VoltACPower(coolingtransformer)[note 2]
W HeatRelay(appearsasW1/Eon2200NC)
Y CompressorRelay(appearsasY1on2200NC)
G FanRelay
C 24VoltACTransformerCommon[note 1, 3]
Typical Wiring Configurations
NOTE: The “Installer Switch” option will be configured in the next step.
Conventional Systems
24VAC Power
Terminal (C)
NOTES - Conventional Systems
[1]Ifbatteriesareinstalledthe24VoltACcommonconnectionisoptional.
[2]Removefactoryinstalledjumperfordualtransformersystems.
[3]Indualtransformersystems,transformercommonmustcomefrom
 coolingtransformer.
[4] Ifneededforsystem.
Provide disconnect and overload protection as required.
2 HEAT / 1 COOL Single Transformer (2200NC Only)
Set System Type to NORM
R 24VoltACPower
W1 HeatRelayStage1
W2 HeatRelayStage2
Y1 CompressorRelayStage1
G FanRelay
C 24VoltACTransformerCommon[note 1]
*AppearsasRon2200NC(singletransformer).