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O/B - reversing valve
Not used
!
ELECTRICAL OPERATION HAZARD
Failure to follow this caution may result in equipment damage
or improper operation.
Improper wiring or installation may damage the thermostat.
Check to make sure wiring is correct before proceeding with
installation or turning on unit.
9. Push any excess wire into wall and against mounting base. Seal hole in
wall to prevent air leaks. Leaks can affect operation.
10. Snap case back together. Attach thermostat to backplate by inserting tab
on bottom edge and hinging up until top snap secures. See Fig. 4.
Rc - 24 VAC, from cooling equipment
Rh - 24 VAC, from heating equipment
W - Heating
C - Common 24 VAC
G - Fan
Y - Cooling
Fig. 3 - - Terminal Designations
CAUTION
9
A07159
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