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R
Y
G
W
Control Board
W
R
G
Y
↓
W C G Y
R
To thermostat
Step 3. Disconnect the wires
Disconnect the W/W1, G, Y/Y1, R wires from the control board.
Step 4. Connect the wiring module
Reconnect these wires to the 4-terminal side of the power module. The
wires and corresponding terminals are shown below.
R
RC W/W1
W G
C Y/Y1
S
To thermostat
Power module
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