Nordyne M1GH 056 Installation Instructions And Owner's Manuals page 26

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 44. Gas Direct Ignition Furnace, Heating & A/C Ready - All M1M Models
2 SPEED 4 SPEED
BLOWER BLOWER
MOTOR MOTOR
1 2 3 4 5 6
1 2 3
ON/OFF
SWITCH
TIE WIRE
4 6
2 5
SUPPLIED
BY INSTALLER
L1
NEUTRAL
GROUND
SCREW
RECEPTACLE
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.
3. On models M1 (B,S) (A,B) jumper wire is installed.
On model M1 (B,S) C, heating and cooling blower
speeds are separate.
26
BLOWER
MOTOR
SINGLE
SPEED
1 2 3 4 5
CONNECTOR
HOUSING CAP
TIE
RED
WIRE
ON/OFF
BLACK
SWITCH
BLUE
BLACK
GREEN
24V
9 6 3
8 5 2
7 4 1
CONTROL
LIGHTS
3 2 1
6 5 4
WHITE RED
WHITE
BLACK
Jumper must be
BLACK
removed if converting
to a multispeed blower.
IGNITOR
Jumper is required for
M1MA models and
M1MB 077, 090
GAS VALVE
SINGLE
SPEED
BLOWER
MOTOR
W
G
1 2 3 4 5 6
R
4 5 6
C
RED
WHITE
BLUE
BLACK
CONNECTOR
HOUSING CAP
ORANGE
GREEN
A/C
3
BLOWER
1 RELAY
GRAY
HI-LIMIT
BLACK
GRAY
TRANSFORMER
R C
24 V
L1 N
115 V
BLACK
WHITE
BLACK
ORANGE
WHITE
WHITE
FURNACE
ELECTRICAL BOX
C R W
BUSHING
LEGENDS
115V:
24V:
Figure 45. Gas and Oil Furnaces, A/C Ready - M1 (B, S) 066, 086 Models
AUX. LIMIT
W
BLUE
G
R
C
6
BLUE
BLUE
HI-LIMIT
TRANS-
GROUND FORMER
SCREW 24 V
R C
L1 N
115 V
ORANGE
ORANGE
BLACK
WHITE
FURNACE ELECTRICAL BOX
CONTROL LIGHT STATUS
RED
Steady ON Control OK
Steady OFF No power
Rapid Flash False flame or internal control fault
1 Flash Limit switch is open
2 Flashes Pressure switch is open with inducer on
3 Flashes Pressure switch is closed with inducer off
4 Flashes Lockout due to failed ignition
5 Flashes 115 vac & neutral reversed or no ground
AUX. LIMIT
BLUE
IGNITER
CONTROL
MODULE
BLUE
BLUE
FAN
SWITCH
GAS VALVE
FROM 'R' WIRE (RED)
FROM 'W' WIRE (BLUE)
FIELD 115V:
FIELD 24V:
BLOWER
BLOWER
MOTOR
MOTOR
4 SPEED
2 SPEED
1 2 3 4 5 6
1 2 3 4 5 6
COMBUSTION FAN
1 2
BLACK
BLACK
PRESSURE
SWITCH
YELLOW
Steady ON Good Flame Signal
Blinking Weak Flame Signal
Steady OFF No Flame Signal
TERMINAL HOUSING
BUSHING
BLACK
IND
L 1
BLACK
HSI
HSIG
WHITE
L 2
BUSHING
RED
W
RED
PSI
FSI
GV
RED
PSO
GREEN
FSG
GRAY
C
GROUND SCREW
BLUE
BURNER ELECTRICAL BOX
GAS GUN
LINE CORD
BURNER
(ITEM #12)
BLACK
T1
T2
WHITE
F1
ORANGE
F2
OIL GUN
BURNER
PRIMARY CONTROL
LINE CORD
CAD CELL
BLACK
BLACK
703854B
BUSHING
L1 N
ITEM #10
(TYP. 5)
BLACK
BLACK
BLACK
BLACK
RED
RED
C W
BUSHING
TERMINAL
FROM "W"
WIRE - BLUE
FROM "C"
WIRE - GRAY
IGNITION TRANS.
BURNER MOTOR
703855B