Wiring Diagrams M1G, Natural Draft, Ac Adaptable; M1G, Natural Draft, Ac Ready - Nordyne M1G Service Manual

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.
ON/OFF
SWITCH
SUPPLIED
BY INSTALLER
L1
NEUTRAL
GROUND
SCREW
FAN ON/AUTO SWITCH
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.
SUPPLIED
BY INSTALLER
L1
NEUTRAL
GROUND SCREW
LEGENDS
115V: FIELD 115V:
24V: FIELD 24V:
Figure 19. Gas Atmospheric Furnace, A/C Ready, M1G (B, C, D) 056, 070 Models
24
BLOWER
MOTOR
HEATING
1 2
CONNECTOR
HOUSING CAP
BLACK
BLACK
ORANGE
ORANGE
WHITE
GRAY
FURNACE ELECTRICAL BOX
GAS VALVE
Figure 18. Gas Atmospheric Furnace, M1GH 056, 070 Models
BLOWER
HEATING/
COOLING
1 2
CONNECTOR
ON/OFF
HOUSING CAP
SWITCH
* RED
BLACK
RED
(SEE NOTE)
TIE WIRE
GRAY
BLUE
A/C 4 6 3
BLOWER
2 5 1
RELAY
WHITE
GAS VALVE
W
ONLY
BLUE
R
C
3 4 5 6
COMMON
FOR OPTIONAL
ACCESSORY KITS
WHITE
HI-LIMIT
GRAY
24 V
TRANSFORMER
R C
L1 N
115 V
WHITE
BLACK
BLUE
LEGENDS
115V:
24V:
MOTOR
2 SPEED
BLUE
W
G
R
BLUE
C
3 4 5 6
WHITE
HI-LIMIT
BLACK
GRAY
TRANSFORMER
24 V
R C
L1 N
115 V
WHITE
GREEN
ORANGE
BLACK
GRAY
BLUE
FURNACE ELECTRICAL BOX
*M1G(C,D) Heating - replace orange wire with
red wire (low speed)
NOTE: To run at same speed in both heating and cooling mode,
remove wire from either terminal 4 or 6 on the relay, then attach
jumper to terminals 4 and 6.
AUX. LIMIT
FAN SWITCH
MANUAL RESET
VENT SWITCH
FIELD 115V:
FIELD 24V:
AUX. LIMIT
HEATING/COOLING
BLOWER
MOTOR
4 SPEED
BLUE
FAN
1 2 3 4 5 6
SWITCH
MANUAL RESET
VENT SWITCH
7038870
7038890