Nortek SC Series Installation Instructions

35
Single Stage Furnaces
LADDER DIAGRAM
10416130
(NEW)
03/22
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
Quantity and types of
limits and switches
may vary with models.
See Note
See Note
DOOR
SWITCH
L1 GND N
GND
BLOWER
MOTOR
CHOKE
(SOME MODELS)
GND
L1
FLAME SENSOR
ELECTRONIC
AIR CLEANER
HUMIDIFIER
HOT SURFACE IGNITOR
INDUCER
120 VAC
24 VAC
TRANSFORMER
K4
K3
K2
P1-2
EAC
P2-1
HUM
P2-2
XFORMER
NEUTRAL
NEUTRAL
NEUTRAL
NEUTRAL
NEUTRAL
NEUTRAL
NEUTRAL
SUPPLY AIR
LIMIT
ROLL-OUT
LIMIT
VENT
LIMIT
BLOWER
LIMIT
SWITCH
BLOWER
DECK LIMIT
SWITCH
P1-3
R
W
G
Y
C
P1-1
P1-7
P1-10
P1-4
P1-9
COM
P1-12
K8
PRESSURE
SWITCH
GND
P1-8
P1-6
GAS
VLV
MICRO
TO MOTOR
RELAYS
3A FUSE
BLOWER
MOTOR
T1
T2
T3
T4
Figure 37. Emerson Ladder Diagram

Nortek SC Series Specifications

General

Brand	Nortek
Model	SC Series
Category	Furnace
Language	English