Electrical Connections; Field Wiring - American Standard S9V2B080D4VSAB Installer's Manual

Upflow/horizontal and dedicated downflow gas-fired, direct/non-direct vent, 2–stage condensing variable speed furnaces with variable speed draft inducer
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F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n

Electrical Connections

Make wiring connections to the unit as indicated on enclosed wiring diagram. As with all gas appliances using electrical power, this furnace shall
be connected into a permanently live electric circuit. It is recommended that furnace be provided with a separate "circuit protection device"
electric circuit. The furnace must be electrically grounded in accordance with local codes or in the absence of local codes with the National
Electrical Code, ANSI/NFPA 70 or CSA C22.1 Electrical Code, if an external electrical source is utilized. The integrated furnace control is
polarity sensitive. The hot leg of the 120V power supply must be connected to the black power lead as indicated on the wiring diagram.
Refer to the SERVICE FACTS literature and unit wiring diagram attached to furnace.

Field Wiring

Two Stage
Thermostat
Furnace
BK
BK
W2
W2
W1
W1
R
R
G
G
B/C
B/C
Y2
Y2
Y1
Y1
O
O
Two Stage
Thermostat
Furnace
BK
BK
W2
W2
W1
W1
R
R
G
G
B/C
B/C
Y2
Y2
Y1
Y1
O
O
58
FIELD WIRING DIAGRAM FOR
TWO STAGE HEATING THERMOSTAT, TWO STAGE COOLING
NOTES:
1) For PWM (BK) enabled thermostats, cut the BK jumper
on the IFC and connect wiring.
2) The factory Y1-O jumper must remain in place for proper
Outdoor Unit
LED read out in cooling mode.
(No Transformer)
3) Y1 and Y2 wiring from the thermostat must connect to
the IFC for proper airflow and LED readout.
B/C
4) Single compressor and two compressor airflow is auto-
matically set with the IFC Menu optionsin ODU section.
2-1=2 stage / 1 compressor (1st stage airflow = 80%)
Y2
2-2=2 stage / 2 compressors (1st stage airflow = 50%)
Y1
INTER-COMPONENT WIRING
SEE
24 V FIELD WIRING
NOTE 2
24 V FACTORY WIRING
FIELD WIRING DIAGRAM FOR
TWO STAGE HEATING THERMOSTAT, TWO STAGE HEAT PUMP
NOTES:
Outdoor Unit
1) For PWM (BK) enabled thermostats, cut the BK jumper
(No Transformer)
2) Remove the factory Y1-O jumper for HP systems
X2
3) Y1 and Y2 wiring from the thermostat must connect to Y1 and
R
4) Single compressor and two compressor airflow is automatically
B/C
Y2
Y1
SEE
NOTE 2
O
INTER-COMPONENT WIRING
Furnace IFC
BK JUMPER
SEE NOTE 1
on the IFC and connect wiring.
for proper LED read out.
Y2 of the IFC for proper airflow and LED readout.
set with the IFC Menu options in ODU section.
2-1=2 stage / 1 compressor (1st stage airflow = 80%)
2-2=2 stage / 2 compressors (1st stage airflow = 50%)
24 V FIELD WIRING
SEE NOTE 1
24 V FACTORY WIRING
Furnace IFC
R-BK
JUMPER
18-CE03D1-1F-EN

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