Nordyne M1B Series Installation Instructions And Owner's Manuals

24
20. WIRING DIAGRAMS
703887B
Figure 40. Gas Atmospheric Furnace, M1GH 056, 070 Models
703888C
Figure 41. Standing Pilot with Induced Draft Furnace, M1GH 077, 090 Models
ON/OFF
SWITCH
GAS VALVE
FAN SWITCH
HI-LIMIT
AUX. LIMIT
TRANSFORMER
L1 N
CR
24 V
115 V
WHITE
WHITE
WHITE
GRAY
BLUE
BLACK
GRAY
FAN ON/AUTO SWITCH
ORANGE
ORANGE
BLACK
L1
NEUTRAL
GROUND
SCREW
FURNACE ELECTRICAL BOX
BLACK
3A FUSE
BLOWER
MOTOR
HEATING
ONLY
654321
C
R
W
GRAY RED
BLUE
CONNECTOR
HOUSING CAP
COMMON
FOR OPTIONAL
ACCESSORY KITS
BLACK BLACK
LEGENDS
115V: FIELD 115V:
24V: FIELD 24V:
RED
NOTES
1. Incoming power must be polarized. Observe
color coding. (See furnace data label for
electrical information.)
2. If any of the original wires (as supplied with
the appliance) must be replaced, use 105˚C
Thermoplastic type wire or its equivalent.
BLACK BLACK
SUPPLIED
BY INSTALLER
BLUE
WHITE
MANUAL RESET
VENT SWITCH
152
364
GAS VALVE
FAN
SWITCH
HI-LIMIT
AUX. LIMIT
PRESSURE
SWITCH
COMBUSTION
FAN
L1 N
CR
24 V
115 V
BLACK
BLACK
BLACK
BLUE
BLACK
WHITE
WHITE
WHITE
WHITE
GRAY
GRAY
BLUE
BLUE
21
GRAY
SUPPLIED BY
INSTALLER
FAN ON/AUTO
SWITCH
BLUE
BLACK
ORANGE
ORANGE
L1
NEUTRAL
GROUND
SCREW
FURNACE ELECTRICAL BOX
3A FUSE
BUSHING
RED
C
R
W
ON/OFF
SWITCH
CONNECTOR
HOUSING CAP
BLACK
BLACK
LEGENDS
115V: FIELD 115V:
24V: FIELD 24V:
GRAY RED WHITE
BLACK BLACK
BLACK
TRANSFORMER
BLOWER
MOTOR
HEATING
ONLY
654321
BLACK BLACK
NOTES
1. Incoming power must be polarized. Observe
color coding. (See furnace data label for
electrical information.)
2. If any of the original wires (as supplied with
the appliance) must be replaced, use 105˚C
Thermoplastic type wire or its equivalent.

Nordyne M1B Series Specifications

General

Brand	Nordyne
Model	M1B Series
Category	Furnace
Language	English