28
WIRING DIAGRAMS (cont.)
Furnace Air Conditioner
Heat Stage 2
O/B
W2
Heat Stage 1 W
W/W1
Cool Stage 1 Y1 Y1
Cool Stage 2 Y/Y2 Y/Y2 Y/Y2
Fan G G
24VAC Hot Heating Rh R R
24VAC Hot Cooling Rc
DHUM
24VAC Common C COM C
Y1
Thermostat
(NA)
*
* Remove jumper when using split power (Indoor and Outdoor units
utilize separate transformers).
A12240
Fig. 8 -- Variable Speed, Step Modulating, Multi--Stage and Single--Stage
Furnace with 2 --Stage Air Conditioner
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