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Step 4.6: Following the terminal labels marked “Power Bridge”
on the thermostat base, loosen the screw and insert each
labeled wire into the top hole of the corresponding terminal.
Connect as follows:
Terminal 1
Terminal 2
Terminal 3
Terminal 4
Y Wire
W Wire
R Wire
G Wire
C
C
W1
W1
W2
O/B
1 4 2
Y1
Y1
RC
RC
RH
RH
G
G
3
Y
G
W R
Step 4.7: Securely fasten CS1 onto its base
Step 4.8: Go to your furnace – remove the door or panel
and locate your control board or transformer. In most cases,
there should be four wires running from the furnace to your
thermostat – Y, G, W, and R. If you have additional wires, leave
them as is.
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