40
88-A801X001-1B-EN
Electrical Connections
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Field Wiring
O
Y1
Y1
B
B
W1
W1
G
G
R
R
Y1
Two Stage
Thermostat
Furnace
Outdoor Unit
(No Transformer)
O
R
X2
Y2
NOTES:
1) HP = Wiring used for Heat Pump systems.
2) Y1 must connect from the thermostat to the IFC
for proper airflow.
3) A/TCONT824 thermostats do not require the use of X2.
HP
HP
HP
FIELD WIRING DIAGRAM FOR A801X SINGLE STAGE
HEATING THERMOSTAT, ONE / TWO STAGE AC OR HEAT PUMP
B
F
Fu
urrn
na
acce
e G
Ge
en
ne
erra
all IIn
nsstta
alllla
attiio
on
n
