Goodman Mfg GAS-FIRED WARM AIR FURNACE MH950453,0704,0905D MH950703,0904,1155, Wiring Diagram

WIRING DIAGRAM

*MH95[0453,0704,0905D]

*MH95[0703,0904,1155]

UNIT.	MAY
BEFORESERVICING OR INSTALLING THIS	MAY BE PRESENT. FAILURE TO DO SO	PERSONAL INJURY OR DEATH.

	24 VAC				OR
	HUMIDIFIER						GY
	24 VAC				40 VA
	115 VAC				TRANSFORMER
24V THERMOSTAT
CONNECTIONS
C G R	W	Y			WH
			BK
	FUSE							OR
					3	2	1	PK
INTEGRATED					6	5	4	OR
CONTROL
MODULE					9	8	7	BL	GR
ON	OFF				12	11	10
		2ND						YL
		STAGE
		DELAY*			GY		OR	OR
		MODE	*			RD		BR
		OFF					GY
		HEAT			OR
*SHOWNFACTORY SETTINGSDELAY *
					FS		TERMINALS	WH
LED		NOTE 6		XFMR-H	2
DIAGNOSTIC		SEE
115 VAC HOT AND PARK TERMINALS					1			WH
COOL-H	HEAT-H						BK
		SEE		LINE-H
GND
		NOTE 4
WH
	BK (HI)				RD		PK
	BL (MED)
	OR (MED LOW)
	RD (LOW)				BK
		CIRCULATOR
BR BR
		BLOWER					YL		WH
CAPACITOR

BLOWER COMPARTMENT DOOR SWITCH (OPEN WHEN DOOR OPEN)

BK

BK

GY

	PK
					GR RD
			YL
WH
					GY
		BL
				OR

BR

				HUMIDIFIER					INTEGRATED
									CONTROL MODULE
		TR (6)
		GND (8)					GND
									C
		MVC (9)
									GAS
		MVH (12)							HI VALVE
									PM
		MVL(2)						C
C							NO		ID BLOWER
		FRONT COVER
									PRESSURE
		PRESSURE SWITCH							SWITCH
G		PS (10)						C	NO
Y	TO	PSO (4)
	MICRO	HLI (7)
W		HLO (1)
							MANUAL RESET AUXILIARY AUTO RESET
R							LIMIT CONTROLS		PRIMARY
		RO2 (11)							LIMIT
									CONTROL
		RO1 (5)
					MANUAL RESET ROLLOUT
					LIMIT CONTROL(S)
	TH (3)				(SINGLE CONTROL ON 45K BTU)
							24 VAC
								40 VA
								TRANSFORMER
	XFMR-H						115 VAC
							FLAME SENSOR
		FS			HOT SURFACE
							IGNITER
		IGN							INTEGRATED
							ID
		IND					BLWR
									CONTROL
		H			L
							O
			E
				A
					T-
							H		MODULE
			I				BLWR
		COOL-H					CIRCULATOR
		H				H
					-
				T
			A
		E
		H

HIGH VOLTAGE! DISCONNECT ALL POWER MULTIPLE POWER SOURCES CAUSE PROPERTY DAMAGE,

BLOWER COMPARTMENT

PU

ELECTRONIC

EAC-H

AIR CLEANER

BURNER COMPARTMENT

MANUAL RESET

LINE-H

AUXILIARY LIMITS

GND

(1) IN UPFLOW

JUNCTION BOX

BLOWER DECK

DOOR

(2) IN C'FLOW

BK

SWITCH

BLOWER HOUSING

WH

WH

WARNING:

INDUCED DRAFT

BLOWER

WH

DISCONNECT POWER

DISCONNECT

BEFORE SERVICING.

AUTO RESET

WIRING TO UNIT

PRIMARY LIMIT

PU

MUST BE

CONTROL

PROPERLY

BL

POLARIZED

AND GROUNDED.

L

GND

N

YL

RD

OR

OR

TO 115VAC/ 1 Ø /60 HZ POWER SUPPLY WITH

OVERCURRENT PROTECTION DEVICE

N

C

PK

O

RD

WH

WARNING:DISCONNECT POWER BEFORE

MANUAL RESET ROLLOUT LIMIT CONTROL(S)

ID BLOWER

JUNCTION

SERVICING.WIRING TO UNIT MUST BE

PRESSURE

24 VAC

( SINGLE CONTROL ON 45K BTU )

BL

PROPERLY POLARIZED AND GROUNDED.

SWITCH

HUMIDIFIER

FRONT COVER

BOX

TO 115 VAC / 1Ø /60HZ POWER SUPPLYWITH OVERCURRENTPROTECTION DEVICE

SENSOR

GAS VALVE (HONEY WELL)

2 CIRCUIT

PM

GY

C

N

PRESSURE SWITCH

1

O

GY

WH

N

CONNECTOR

GND

GR

GND

HOT

C

3

BR

BK

L

SURFACE

FLAME

IGNITER

HI

2

OR

DISCONNECT

0 STEADY ON = NORMAL OPERATION

LOW VOLTAGE (24V)

OFF

= CONTROL FAILURE

EQUIPMENT GND

LOW VOLTAGE FIELD

1

1 FLASH

= SYSTEM LOCKOUT (RETRIES EXCEEDED)

FIELD GND

2

2 FLASHES = PRESSURE SWITCH STUCK CLOSED

HI VOLTAGE (115V)

FIELD SPLICE

3

3 FLASHES = PRESSURE SWITCH STUCK OPEN

HI VOLTAGE FIELD

SWITCH (TEMP.)

4

4 FLASHES = OPEN HIGH LIMIT

JUNCTION

5

5 FLASHES = FLAME SENSE WITHOUT GAS VALVE

IGNITER

TERMINAL

6

6 FLASHES = OPEN ROLLOUT OR OPEN FUSE

SWITCH (PRESS.)

INTERNAL TO

7

7 FLASHES = LOW FLAME SIGNAL

INTEGRATED CONTROL

OVERCURRENT

8

8 FLASHES = CHECK IGNITER OR IMPROPER GROUNDING

PLUG CONNECTION

PROT. DEVICE

C CONTINUOUS/RAPID FLASHES = REVERSED 115 VAC POLARITY

COLOR CODES:

PK PINK

NOTES:

1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.

YL YELLOW

BR BROWN

2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING.

OR ORANGE

WH WHITE

3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL

PU PURPLE

BL BLUE

HAVING A TEMPERATURE RATING OF AT LEAST 105

C. USE COPPER CONDUCTORS ONLY.

4. IF HEATING AND COOLING BLOWER SPEEDS ARE NOT THE SAME, DISCARD JUMPER BEFORE CONNECTING BLOWER LEADS. UNUSED

GN GREEN

GY GRAY

BLOWER LEADS MUST BE PLACED ON "PARK" TERMINALS OF INTEGRATED CONTROL OR TAPED.

BK BLACK

RD RED

5. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO N.E.C. AND LOCAL CODES.

0140F00663 REV. A

6. TO RECALL THE LAST 5 FAULTS, MOST RECENT TO LEAST RECENT, DEPRESS SWITCH FOR MORE THAN 2 SECONDS WHILE IN

STANDBY (NO THERMOSTAT INPUTS)

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

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