Installation Guide

© 2014 521_D - 01/14
11 of 28
A Watts Water Technologies Company
Thermostat Wiring
Air Conditioner
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Furnace (second stage heat)
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Furnace and Air Conditioner
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R
Y
G
C R
Y/W2
Rc GGRh W1 S1 S2Com
No Power
Air
Conditioner
C R
Y/W2
Rc GGRh W1 S1 S2Com
No Power
R W G
Furnace
C R
Y/W2
Rc GGRh W1 S1 S2Com
No Power
C
R
W
Y
G
Furnace
Air
Conditioner
Field Jumper Required:
R to Rh
Rh to Rc
Rc to G
Field Jumper Required:
Rc to G
Field Jumper Required:
Rc to G