1
5
2
A/C
BLOWER
RELAY
3
6
4
FAN
SWITCH
HI-LIMIT
AUX. LIMIT
TRANSFORMER
L1 N
C
R
24 V
115 V
GROUND
SCREW
FURNACE
ELECTRICAL BOX
TIE WIRE
3A FUSE
6
5
4
3
2
1
RED (LO)
BLACK (HIGH)
BLUE (MED. HI)
WHITE
4 SPEED
BLOWER
MOTOR
C
R
G
W
ON/OFF
SWITCH
CONNECTOR
HOUSING CAP
SUPPLIED
BY INSTALLER
6
543
21
RED (LO)
BLUE (MEDHI)
BLACK (HI)
WHITE
3 SPEED
BLOWER
MOTOR
ORANGE (MED LO)
C W
RECEPTACLE
NEUTRAL
L1
TO BURNER CONTROL
WHITE
RED
(SEE NOTE 3)
WHITE
BLUE
WHITE
BLUE
GRAY
BLACK
BLACK
ORANGE
WHITE
RED
GRAY
RED
GREEN
WHITE
GRAY
GREEN
BLACK
BLACK
GREEN
GRAY
BLUE
BLACK
ORANGE
RED
BLACK
LINE CORD
T
T
CAD
CELL
CAD
CELL
R7184B
PRIMARY
CONTROL
OIL GUN BURNER
IGNITER
L2
MOTOR
L2
L2
L1
VALVE
L2
120 VoltM5S Furnace Series Single Phase / 60 Hz
10184740
08/17
BLUE W/WHITE STRIPE
WHITE
ORANGE
WHITE
BLACK
BLACK W/WHITE STRIPE
VIOLET
WHITE
IGNITION
MODULE
BURNER
MOTOR
VALVE
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 and M1/M5(B,S)086 jumper wire is installed.
On all other models, cooling speed is connected to black wire.
4. A/C Heating Speeds: Refer to Table 12, A/C Blower Selection
5. If any of the original wire supplied with the appliance is replaced,
use
105˚C wire or equivalent.
6. Use copper conductors only.
7. Flash Codes: Refer to Table 9, Control Module Status Indicators.
YELLOW
YELLOW
7505B
OR
WIRING DIAGRAM
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
GRAY
BLUE
