Specifications

20
22-1930-1C-EN
O
Y2
Y1 Y1
B/C B/C
W2
W1W1
GG
RR
O
Y1
B/C
Single Stage
Thermostat
Furnace
Outdoor Unit
(No Transformer)
SEE
NOTE 1
SEE
NOTE 3
O
R
X2
FIELD WIRING DIAGRAM FOR
SINGLE STAGE HEATING THERMOSTAT, SINGLE STAGE HEAT PUMP
NOTES:
1) Remove the factory Y1-O jumper for HP systems
for proper LED read out.
2) Y1 wiring from the thermostat must connect to Y1 of
the IFC for proper airflow and LED readout.
3) Place field supplied jumper between W1 and W2 on the
IFC. Interstage delay is factory set for 10 minutes but is field
adjustable with the Menu option in the ISD section.
Note: HT2 will be shown during the entire heating cycle but the
interstage delay setting will control when 2nd stage heating
is actually energized.
4) Single stage airflow is set with the IFC Menu options
in ODU section. Select 1-1.
INTER-COMPONENT WIRING
24 V FIELD WIRING
24 V FACTORY WIRING
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