Nordyne M1B Series Installation Instructions And Owner's Manuals

26
703854B
Figure 44. Gas Direct Ignition Furnace, Heating & A/C Ready - All M1M Models
703855B
Figure 45. Gas and Oil Furnaces, A/C Ready - M1 (B, S) 066, 086 Models
ORANGE
BLOWER
MOTOR
SINGLE
SPEED
ON/OFF
SWITCH
C
R
G
W
GAS VALVE
HI-LIMIT
AUX. LIMIT
TRANS-
FORMER
PRESSURE
SWITCH
654321
654321
COMBUSTION FAN
L1 N
CR
24 V
115 V
21
1
4
5
2
6
3
1
2
3
4
5
6
7
8
9
IGNITOR
BLUE
BLUE
BLACK
GREEN
YELLOW YELLOW
BLACK
BLACK
ORANGE
ORANGE
BLACK
WHITE
L1
NEUTRAL
GROUND SCREW
FURNACE ELECTRICAL BOX
24V
NEU
C
H
L1
XFRM
TIE
WIRE
RED
BLACK
BLUE
CONNECTOR
HOUSING CAP
GROUND
SCREW
BLACK
BLACK
CONTROL LIGHT STATUS
RED YELLOW
Steady ON Control OK Steady ON Good Flame Signal
Steady OFF No power Blinking Weak Flame Signal
Rapid Flash False flame or internal control fault Steady OFF No Flame Signal
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
CONTROL
LIGHTS
RED
Jumper must be
removed if converting
to a multispeed blower.
Jumper is required for
M1MA models and
M1MB 077, 090
BLACK
WHITE
WHITE
BLACK
BLACK
GREEN RED GRAY WHITE
BLACK (HIGH) RED (LO) WHITE
RED (LO) BLACK (HIGH)
BLUE (MED. HI) ORANGE (MED. LO) WHITE
654321
LEGENDS
115V: FIELD 115V:
24V: FIELD 24V:
BLOWER
MOTOR
2 SPEED
BLOWER
MOTOR
4 SPEED
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
C W G R
COM
BLUE
152
A/C
BLOWER
RELAY
364
FAN
SWITCH
HI-LIMIT
AUX. LIMIT
TRANSFORMER
L1 N
CR
24 V
115 V
BLACK
GREEN
WHITE
WHITE
WHITE
GRAY
BLUE
GRAY
BLUE
BLACK
BLACK
CRW
BLUE
BLACK
ORANGE
ORANGE
L1
NEUTRAL
GROUND
SCREW
FURNACE
ELECTRICAL BOX
RED
TIE WIRE
WHITE
RED
3A FUSE
GRAY RED GREEN WHITE
654321
654321
RED (LO) BLACK (HIGH) BLUE (MED. HI)
WHITE
4 SPEED
BLOWER
MOTOR
SINGLE
SPEED
BLOWER
MOTOR
C
R
G
W
ON/OFF
SWITCH
BUSHING
BLACK
RED (SEE NOTE 3)
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.
LEGENDS
115V: FIELD 115V:
24V: FIELD 24V:
GRAY
RED
GREEN
CONNECTOR
HOUSING CAP
BLACK BLACK
LINE CORD
T1
T2
F1
F2
FROM 'R' WIRE (RED)
FROM 'W' WIRE (BLUE)
CAD CELL
PRIMARY CONTROL
BLACK
BLACK
IGNITION TRANS.
BURNER MOTOR
BLACK
WHITE
ORANGE
BLACK
WHITE
ORANGE
WHITE
OIL GUN
BURNER
SUPPLIED
BY INSTALLER
BLACK
654321
RED (LO) BLACK (HIGH) WHITE
2 SPEED
BLOWER
MOTOR
ORANGE (MED LO)
NL1
BURNER ELECTRICAL BOX
GAS VALVE
IGNITER
GREEN
BLUE
BLUE
BLACK
WHITE
RED
RED
RED
BLACK
GROUND SCREW
BLACK
BLACK
RED
RED
BLACK
BLACK
GRAY
GV
PSO
FSG
C
IND
L1
HSI
HSIG
L2
W
PSI
FSI
CONTROL
MODULE
TERMINAL HOUSING
BUSHING
LINE CORD
(ITEM #12)
TERMINAL
BUSHING
BUSHING
BUSHING
BUSHING
WC
ITEM #10
(TYP. 5)
FROM "C"
WIRE - GRAY
BLACK
BLACK
FROM "W"
WIRE - BLUE
GAS GUN
BURNER

Nordyne M1B Series Specifications

General

Brand	Nordyne
Model	M1B Series
Category	Furnace
Language	English