20
WIRING DIAGRAMS (Cont.)
Heat Pump
Fan Coil or Furnace
Single Stage Heat Pump and Auxiliary Heat
W2
O/B
Y
R
C
W
O/B*
Y
GRC
Rc
G
Y/Y1
W/W1
(AUX1)
O/B
ACC–
ACC+
W2
(AUX2)
Y2
C
R
H
* Connect to O/B terminal on furnace ir fan coil, if available
A14503
Fig. 11 -- Heat Pump (Air or Geothermal) With Auxiliary Heat--
Single Stage
