1029966A
(Replaces 10299660)
07/21
LADDER DIAGRAM
For 80% Ultra-Low NOx Series Single Stage Furnaces 120 Volt / 1 Ph. / 60 Hz.
FIELD WIRING
LEGEND:
FIELD SUPPLIED
DISCONNECT
DOOR
SWITCH
CHOKE
(SOME MODELS)
FLAME SENSOR
ELECTRONIC
AIR CLEANER
HOT SURFACE IGNITOR
HUMIDIFIER
INDUCER
120 VAC
24 VAC
TRANSFORMER
SUPPLY AIR
LIMIT
BLOCKED
VENT
LIMIT
BLOWER
LIMIT
SWITCH
BLOWER
LIMIT
SWITCH
PRESSURE
SWITCH
GAS
VALVE
THERMOSTAT
MICRO
3A FUSE
24 V
R
W
G
Y
C
K1
P1-2
P1-4
P1-5
P1-6
P1-3
P1-8
TO MOTOR
RELAYS
COM
24 V K8 K5
K6
K7
K5
K6
K7
MED-HI
MED-LO
LO
HI
BLOWER
MOTOR
CONTROL
GND
L1 GND N
BLOWER
MOTOR
GND
XFORMER
P1-7
EAC
P2-3
HUM
P2-1
K2
K4
K3
CONTROL
NEUTRAL
P2-6
NEUTRAL
P2-4
NEUTRAL
CONTROL
NEUTRAL
NEUTRAL
L1
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