3
Connect Your Wires
Wiring Terminations
Terminal
Function
Additional Terminations (1220 only)
Terminal
Function
Conventional Systems
Typical Wiring Configurations
NOTE: The "Installer Switch" option will be configured in the next step.
Heat Only or Millivolt
Set Installer Switch to CONV
Rh
W
W1/E
G
[note 4]
C
1 HEAT / 1 COOL Single or Dual Transformer
Set Installer Switch to CONV
Rh
Rc
W1
W1/E
Y1
G
C
Description
Description
[note 1]
[note 2]
[note 2]
[note 1, 3]
3
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