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A qualified service person
should perform the resistor
installation.
Method 1. (For heat/cool systems
only
.)
1. Disconnect 120v AC power from
system.
2. Install the resistor between the W
and Y terminals on the thermostat
(see fig. 8).
Do not allow the resistor
to come into contact with any other
thermostat components.
CAUTION
Figure 8. Install resistor
at thermostat (method 1)
1K
Ω
, 0.5W resistor
W
Y
G
R
D6
D7