J801X Installation Manual

25
Figure 20. Ladder Diagram
10299660
(NEW)
11/19
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
ROLL-OUT
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