Amana AMH950905CXA Service manual

TECHNICAL MANU AL

*MH95

40"

UP TO

96% Gas Furnace

• Refer to Service Manual RS6610004 for installation, operation, and troubleshooting information.

• All safety information must be followed as provided in the Service Manual.

• Refer to the appropriate Parts Catalog for part number information.

• Model numbers listed on page 3.

This manual is to be used by qualified, professionally trained HVAC technicians only.

Goodman does not assume any responsibility for property damage or personal injury due to improper service procedures or services performed by an unqualified person.

Copyright © 2007, 2009-2010, 2012-2013 Goodman Manufacturing Company, L.P.

RT6612018r9

January 2013

PRODUCT IDENTIFICATION

The model and manufacturing number are used for positive identification of component parts used in manufacturing.

Please use these numbers when requesting service or parts information.

G M H 95 045 3 B X A A

PRODUCT

TYPE:

G: Goodman®

Brand

A: Amana®

Brand

AIR FLOW

DIRECTION:

M: Upflow/

Horizontal

D: Dedicated

Downflow

C: Downflow/

Horizontal

H: HI Air Flow

AFUE

9: 90%

95: 95%

CABINET

WIDTH:

B: 17-1/2"

C: 21"

D: 24-1/2"

MAXIMUM CFM

@ 0.5" ESP

3: 1200

4: 1600

5: 2000

DESCRIPTION:

H: Dual$aver, Multi-Speed

V: Variable Speed KBTUH:

045: 45,000 Btuh

070: 70,000 Btuh

090: 90,000 Btuh

115: 115,000 Btuh

140: 140,000 Btuh

NOx

N: Natural Gas

X: Low NOx

MAJOR

REVISION

LEVEL

MINOR

REVISION

LEVEL

A: Initial Release

A: Initial Release

2

®

is a trademark of Maytag Corporation and is used under license to Goodman Company, L.P. All rights reserved.

HIGH VOLTAGE!

Disconnect ALL power before servicing or installing this unit. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death.

Goodman will not be responsible for any injury or property damage arising from improper service or service procedures. If you install or perform service on this unit, you assume responsibility for any personal injury or property damage which may result. Many jurisdictions require a license to install or service heating and air conditioning equipment.

Installation and repair of this unit should be performed ONLY by individuals meeting the requirements of an "entry level technician", at a minimum, as specified by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI). Attempting to install or repair this unit without such background may result in product damage, personal injury or death.

PRODUCT IDENTIFICATION

The model and manufacturing number are used for positive identification of component parts used in manufacturing.

Please use these numbers when requesting service or parts information.

AMH950453BXA*

AMH950703BXA*

AMH950704CXA*

AMH950904CXA*

AMH950905CXA*

AMH950905DXA*

AMH951155DXA*

GMH950453BXA*

GMH950703BXA*

GMH950704CXA*

GMH950904CXA*

GMH950905CXA*

GMH950905DXA*

GMH951155DXA*

The United States Environmental Protection Agency (“EPA”) has issued various regulations regarding the introduction and disposal of refrigerants introduced into this unit. Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines.

These regulations may vary by jurisdiction. Should questions arise, contact your local EPA office.

Do not connect or use any device that is not design certified by

Goodman for use with this unit.

Serious property damage, personal injury, reduced unit performance and/or hazardous conditions may result from the use of such non-approved devices.

damage, personal injury, or death, do not store combustible materials or use gasoline or other flammable liquids or vapors in the vicinity of this appliance.

To prevent the risk of property

3

PRODUCT DESIGN

General Operation

The *MH95 furnaces are equipped with an electronic ignition device used to light the burners and an induced draft blower to exhaust combustion products.

An interlock switch prevents furnace operation if the blower door is not in place. Keep the blower access door in place except for inspection and maintenance.

This furnace is also equipped with a self-diagnosing electronic control module. In the event a furnace component is not operating properly, the control module LED will flash on and off in a factory-programmed sequence, depending on the problem encountered. This light can be viewed through the observation window in the blower access door. Refer to the Troubleshooting Chart for further explanation of the LED codes and Abnormal Operation - Integrated Ignition Control section in the Service Instructions for an explanation of the possible problem.

The rated heating capacity of the furnace should be greater than or equal to the total heat loss of the area to be heated.

The total heat loss should be calculated by an approved method or in accordance with “ASHRAE Guide” or “Manual

J-Load Calculations” published by the Air Conditioning Contractors of America.

*Obtain from: American National Standards Institute 1430

Broadway New York, NY 10018

Location Considerations

• The furnace should be as centralized as is practical with respect to the air distribution system.

• Do not install the furnace directly on carpeting, tile, or combustible material other than wood flooring.

• When suspending the furnace from rafters or joists, use 3/8" threaded rod and 2” x 2” x 3/8” angle as shown in the Installation and Service Instructions. The length of the rod will depend on the application and clearance necessary.

• When installed in a residential garage, the furnace must be positioned so the burners and ignition source are located not less than 18 inches (457 mm) above the floor and protected from physical damage by vehicles.

Notes:

1. Installer must supply one or two PVC pipes: one for combustion air (optional) and one for the flue outlet (required).

Vent pipe must be either 2” or 3” in diameter, depending upon furnace input, number of elbows, length of run and installation (1 or 2 pipes). The optional Combustion Air

Pipe is dependent on installation/code requirements and must be 2” or 3” diameter PVC.

2. Line voltage wiring can enter through the right or left side of the furnace. Low voltage wiring can enter through the right or left side of furnace.

3. Conversion kits for high altitude natural or propane gas operation are available. See High Altitude Derate chart for details.

4. Installer must supply the following gas line fittings, depending on which entrance is used:

Left -- Two 90º Elbows, one close nipple, straight pipe.

Right -- Straight pipe to reach gas valve.

Accessibility Clearances (Minimum)

MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS

(INCHES)

Upflow

Horizontal

3

3

0

6

0

0

1

6

0

0

*= All positioning is determined as installed unit is viewed from the front.

C= If placed on combustible floor, floor MUST be wood only.

NC= For instalaltion on non-combustible floors only. A non-combustible

subbase must be used for installations on combustible flooring.

C

C

24" at front is required for servicing or cleaning.

Note: In all cases accessibility clearance shall take precedence over clearances from the enclosure where accessibility clearances are greater. All dimensions are given in inches.

High Altitude Derate

When this furnace is installed at high altitude, the appropriate High Altitude orifice kit must be installed. This is required due to the natural reduction in the density of both the gas fuel and combustion air as altitude increases. The kit will provide the proper design certified input rate within the specified altitude range.

PROPANE AND HIGH ALTITUDE KITS

FOR *MH95*****XA* MODELS

0 to 7,001 to 9,001 to 7,001 to

7,000 ft.

9,000 ft.

11,000 ft.

LPM-05

1

HANG11 HANG12

LPM-06

2

High Altitude High Altitude

Propane

Natural Gas Kit Natural Gas Kit

Conversion Kit

(#44 Orifices) (#45 Orifices)

(#55 Orifices)

1

LPM-05* supports White-Rodgers 2-stage valves only

2

LPM-06* supports Honeywell and White-Rodgers 2-stage valves

11,000 ft.

HALP 10

High Altitude

LP Gas Kit

(#56 Orifices)

High altitude kits are purchased according to the installation altitude and usage of either natural or propane gas. Refer to the chart above for a tabular listing of appropriate altitude ranges and corresponding manufacturer’s high altitude Natural Gas and Propane Gas kits. For a tabular listing of appropriate altitude ranges and corresponding manufacturer's High

Altitude Pressure Switch kits, refer to either the Pressure

Switch Trip Points & Usage Chart in this manual or the Ac-

cessory Charts in Service Instructions.

4

COMPONENT IDENTIFICATION *MH95*****XA*

Upflow/Horizontal

1 Gas Valve

2 Gas Line Entrance (Alternate)

3 Pressure Switch

4 Gas Manifold

5 Combustion Air Intake Connection / “Coupling”

6 Hot Surface Igniter

7 Rollout Limit

8 Burners

9 Flame Sensor

10 Flue Pipe Connection / “Coupling”

11 Flue Pipe (Internal)

12 Primary Limit

13 Gas Line Entrance

14 Flue Pipe Connection (Alternate)

15 Rubber Elbow

16 Induced Draft Blower

17 Electrical Connection Inlets (Alternate)

18 Coil Front Cover Pressure Tap

19 Coil Front Cover Drain Port

20 Drain Line Penetrations

21 Drain Trap

22 Blower Door Interlock Switch

23 Capacitor

24 Integrated Control Module

(with fuse and diagnostic LED)

25 24-Volt Thermostat Connections

26 Transformer (40 VA)

27 Circulator Blower

28 Auxiliary Limit

29 Junction Box

30 Electrical Connection Inlets

31 Coil Front Cover

5

PRODUCT DIMENSIONS *MH95*****XA*

6

PRODUCT DESIGN *MH95*****XA*

7

8

PRODUCT DESIGN

PRIMARY LIMIT

Part Number

Open Setting (°F)

*MH950453BXA*

*MH950703BXA*

*MH950704CXA*

*MH950904CXA*

*MH950905CXA*

*MH950905DXA*

*MH951155DXA*

0130F00105 20162903

130 160

1

1

1

1

1

20162904

150

1

1

*MH95*****XA*

Part Number

Open Setting (°F)

*MH950453BXA*

*MH950703BXA*

*MH950704CXA*

*MH950904CXA*

*MH950905CXA*

*MH950905DXA*

*MH951155DXA*

ROLLOUT LIMIT SWITCHES

10123514 or 10123533

200

1

2

2

2

2

2

10123517

210

2

Part Number

Open Setting (°F)

*MH950453BXA*

*MH950703BXA*

*MH950704CXA*

*MH950904CXA*

*MH950905CXA*

*MH950905DXA*

*MH951155DXA*

AUXILIARY LIMIT SWITCHES

10123535

150

1

1

1

1

10123519

160

1

1

0130F00038

120

1

PRODUCT DESIGN *MH95*****XA*

Coil Matches:

A large array of Amana ® brand and Goodman ® brand coils are available for use with the AMH95 and GMH95 furnaces, in either upflow or horizontal applications. These coils are available in both cased and uncased models (with the option of a field installed TXV expansion device). These 95%+ furnaces match up with the existing Amana ® brand and Goodman ® brand coils as shown in the chart below.

Coil Matches (for Amana

®

brand & Goodman

®

brand units using R22 and R-410A):

C A P F 1824 A 6 A

PRODUCT

TYPE:

C: Indoor Coil

EXPANSION

DEVICE:

F: Flowrater

CABINET FINISH:

U: Unpainted

P: Painted

N: Unpainted Case

APPLICATION

A: Upflow/Downflow Coil

H: Horizontal A Coil

S: Horizontal Slab Coil

NOMINAL CAPACITY RANGE

@ 13 SEER

1824: 1 1/2 to 2 Tons

3030: 2 1/2 Tons

3636: 3 Tons

3642: 3 to 3 1/2 Tons

3743: 3 to 3 1/2 Tons

4860: 4 & 5 Tons

4961: 4 & 5 Tons

REVISION

A: Revision

REFRIGERANT

CHARGE:

6: R-410A or R-22

2: R-22

4: R-410a

NOMINAL WIDTH FOR GAS FURNACE

A: Fits 14" Furnace Cabinet

B: Fits 17 1/2" Furnace Cabinet

C: Fits 21" Furnace Cabinet

D: Fits 24 1/2" Furnace Cabinet

N: Does Not Apply (Horizontal Slab Coils)

• All CAPF coils in B, C, & D widths have insulated blank off plates for use with one size smaller furnaces.

• All CAPF coils have a CAUF equivalent.

• All CHPF coils in B, C & D heights have an insulated Z bracket for use with one size smaller furnace.

• All proper coil combinations are subject to being ARI rated with a matched outdoor unit.

®

is a trademark of Maytag Corporation and is used under license to Goodman Company, L.P. All rights reserved.

9

PRODUCT DESIGN

Thermostats:

NOTE: Complete lineup of thermostats can be found in the Thermostat Specification Sheets.

Filters:

Filters are required with this furnace and must be provided by the installer. The filters used must comply with UL900 or

CAN/ULCS111 standards. Installing this furnace without filters will void the unit warranty.

Upflow Filters

This furnace has provisions for the installation of return air filters at the side and/or bottom return. The furnace will accommodate the following filter sizes depending on cabinet size:

Cabinet

Width

(in.)

All

SIDE RETURN

Nominal

Filter Size

(in.)

16 x 25 x 1

Approx.

Flow Area

(in

2

)

400

BOTTOM RETURN

(1)

Cabinet Nominal Approx.

Width Filter Size Flow Area

(in.) (in.) (in

2

)

17-1/2

21

14 x 25 x 1

16 x 25 x 1

350

400

24-1/2 20 x 25 x 1 500

(1) Flanges on bottom return must be unfolded

Refer to Minimum Filter Area tables to determine filter area requirement. NOTE: Filters can also be installed elsewhere in the duct system such as a central return.

0453BXA*

0703BXA*

0704CXA*

0904CXA*

0905CXA*

0905DXA*

1155DXA*

---

---

---

---

600

388*

---

---

COOLING AIRFLOW REQUIREMENT (CFM)

---

---

---

---

800

388* 480 576

647* 647* 647*

---

1000 1200 1400 1600 1800 2000

583* 583*

---

672

672

---

---

768

---

---

---

---

---

---

863* 863*

863* 863*

---

---

777*

971*

863*

863*

777*

971*

863*

863*

777*

971*

---

864

864

971*

---

---

960

971*

10

*Minimum filter area dictated by heating airflow requirement.

Disposable Minimum Filter Area (in

2

)

[Based on a 300 ft/min filter face velocity]

0453BXA*

0703BXA*

0704CXA*

0904CXA*

0905CXA*

0905DXA*

1155DXA*

---

---

---

---

600

194*

---

---

COOLING AIRFLOW REQUIREMENT (CFM )

---

---

---

---

800

194*

324*

---

1000 1200 1400 1600 1800 2000

240

324*

291*

288

324*

291*

---

336

336

---

---

384

---

---

---

432*

432*

---

---

432*

432*

388*

486*

432*

432*

388*

486*

432*

432*

388*

486*

---

432*

432

486*

---

---

480

486*

---

---

---

*Minimum filter area dictated by heating airflow requirement.

Permanent Minimum Filter Area (in

2

)

[Based on 600 ft/min filter face velocity]

FURNACE SPECIFICATIONS

*MH95

0453BXA*

MODEL

BTUH

Natural Gas Input

*

Natural Gas Output

LP Gas Input

LP Gas Output

A.F.U.E.

Rated External Static (" w.c.)

Temperature Rise (°F)

ID Blower Pressure Switch Trip Point (" w.c.)

Front Cover Pressure Switch Trip Point (" w.c.)

Blower Wheel (D" x W")

Blower Horsepower

Blower Speeds

Max CFM @ 0.5 E.S.P.

Power Supply

Minimum Circuit Ampacity (MCA)

( 1)

Maximum Overcurrent Device

(2)

Transformer (VA)

Primary Limit Setting (°F)

Auxiliary Limit Setting (°F)

Rollout Limit Setting (°F)

Fan Delay On Heating

Off Heating

(3)

Fan Delay On Cooling

Off Cooling

Gas Supply Pressure (Natural/Propane) ("w.c.)

Manifold Pressure (Natural/Propane) ("w.c.)

Orifice Size (Natural/Propane)

Number of Burners

Vent Connector Diameter (inches)

( 4)

Combustion Air Connector Diameter (inches)

(5)

Shipping Weight (lbs.)

*MH95

0703BXA*

*MH95

0704CXA*

46,000

44,200

41,400

39,800

96.1%

.20 - .50

35 - 65

-1.10

-0.37

10 x 8

1/3

4

1200

115-60-1

9.4

15.0

40

150

15.0

40

160

150

200

150

200

30 secs.

30 secs.

150 secs.

150 secs.

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

2

2

2

120

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

3

2

2

123

69,000

66,300

62,100

59,700

96.1%

.20 - .50

30 - 60

-0.95

-0.37

10 x 8

1/3

4

1200

115-60-1

9.4

15.0

40

160

150

200

30 secs.

150 secs.

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

3

2

2

125

69,000

66,300

62,100

59,700

96.1%

.20 - .50

35 - 65

-1.10

-0.37

10 x 10

1/2

4

1600

115-60-1

13.8

*MH95

0904CXA*

*MH95*****XA*

*MH95

0905CXA*

*MH95

0905DXA*

*MH95

1155DXA*

15.0

40

150

150

200

30 secs.

150 secs.

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

4

2

2

144

92,000

88,400

82,800

79,600

96.1%

.20 - .50

30 - 60

-1.20

-0.60

10 x 10

1/2

4

1600

115-60-1

13.8

92,000

88,400

82,800

79,600

96.1%

.20 - .50

30 - 60

-1.35

-0.10

11 x 10

3/4

4

1800

115-60-1

13.2

15.0

40

130

15.0

40

160

120

210

150

200

30 secs.

30 secs.

150 secs.

150 secs.

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

4

2

2

146

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

4

2

2

151

92,000

88,400

82,800

79,600

96.1%

.20 - .50

35 - 65

-1.10

-0.37

11 x 10

3/4

4

2000

115-60-1

13.2

15.0

40

160

160

200

30 secs.

150 secs.

6 sec.

45 secs.

7 / 11

3.5 / 10

43 / 55

5

2

2

163

-0.60

11 x 10

3/4

4

2000

115-60-1

13.2

115,000

110,500

103,500

99,500

96.1%

.20 - .50

35 - 65

-1.10

* Natural Gas BTU/h. For altitudes above 2,000’, reduce input rating 4% for each 1,000’ above sea level. Low-firerate is 75% of high-fire rate

(1) Wire size should be determined in accordance with National Electrical Codes. Extensive wire runs will require larger wire sizes.

(2) Maximum Overcurrent Protection Device: May use Time Delay Fuse or HACR type Circuit Breaker of the same size as noted.

(3) Off Heating - this fan delay timing is adjustable (100 and 150 seconds). Furnaces are shipped with 150 second off delay.

(4) See Installation Instructions for appropriate vent diameter, length and number of elbows.

(5) See Installation Instructions for appropriate combustion air pipe diameter, length and number of elbows.

NOTE: This data is provided as a guide, it is important to electrically connect the unit and properly size fuses/circuit breakers and wires in accordance with all national and/or local electrical codes. Use copper wire only.

1. These furnaces are manufactured for natural gas operation. Optional kits are available for conversion to propane operation.

2. For elevations above 2000 feet the rating should be reduced by 4% for each 1000 feet above sea level. The furnace must not be derated, orifice changes should only be made if necessary for altitude.

3. The total heat loss from the structure as expressed in TOTAL BTU/HR must be calculated by the manufacturers method or in accordance with the "A.S.H.R.A.E.

GUIDE" or "MANUAL J-LOAD CALCULATIONS" published by the AIR CONDITIONING CONTRACTORS OF AMERICA. The total heat loss calculated should be equal to or less than the heating capacity. Output based on D.O.E. test procedures.

4. Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps.

Unit specifications are subject to change without notice. ALWAYS refer to the units serial plate for the most up-to-date general and electrical information.

11

BLOWER PERFORMANCE SPECIFICATIONS

Model

Heating Speed

As Shipped

*MH950453BXA*

(MED-HI)

*MH95*****XA*

MED-LO 2.0

BLOWER PERFORMANCE

(CFM & Temperature Rise vs. External Static Pressure)

Motor

Speed

Tons AC at 0.5" 0.1

EXTERNAL STATIC PRESSURE (Inches Water Column)

0.2

0.3

0.4

0.5

0.6

0.7

0.8

ESP CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM

HIGH 3.0

MED 2.5

1352 29 1318 30 1260 31 1202 33 1128 35 1044 955 853

1214 32 1172 34 1123 35 1064 37 1012 39 938 859 741

997 40 994 40 960 41 923 43 884 45 817 741 611

LOW

HIGH

1.5

3.0

*MH950703BXA*

(MED-HI)

*MH950704CXA*

(MED-HI)

*MH950904CXA*

(MED-HI)

*MH950905CXA*

(MED-HI)

*MH950905DXA*

(MED-HI)

*MH951155DXA*

(MED-HI)

MED

MED-LO

LOW

HIGH

MED

MED-LO

LOW

HIGH

MED 3.5

MED-LO 3.0

LOW

HIGH

2.5

5.0

LOW

HIGH

3.0

5.0

MED 4.0

MED-LO 3.5

1.5

4.0

3.5

3.0

MED 4.0

MED-LO 3.5

LOW

HIGH

3.0

5.0

MED 4.0

MED-LO 3.5

LOW

2.5

2.0

2.5

4.0

3.0

757 52 753 52 734 54 704 56 674 59 620 524 438

1449 41 1409 42 1326 45 1273 47 1201 49 1194 1136 1018

1192 50 1172 51 1141 52 1094 54 1046 57

981 61 962 62 943 63 917 65 888 67

973 904 793

830 764 665

750 79 730 81 714 83 692 86 657 90 620 570 502

2069 29 1965 30 1871 32 1756 34 1661 36 1549 1415 1275

1752 34 1724 34 1667 36 1603 37 1488 40 1402 1290 1082

1437 41 1437 41 1417 42 1369 43 1320 45 1256 1140 984

1184 50 1177 50 1161 51 1132 52 1095 54 1047 928 837

1970 40 1874 42 1757 45 1667 48 1566 51 1431 1334 1182

1713 46 1650 48 1572 50 1510 52 1418 56 1313 1211 1079

1439 55 1412 56 1370 58 1327 60 1260 63 1166 1078 956

1183 67 1155 69 1122 74 1108 72 1062 75 1011 931 816

2058 39 1997 40 1928 42 1852 43 1777 45 1682 1600 1487

1718 47 1685 48 1632 49 1586 51 1520 53 1458 1369 1281

1502 54 1464 55 1429 56 1380 58 1319 61 1272 1200 1137

1305 62 1277 63 1253 64 1212 66 1175 69 1127 1081 1010

2147 37 2114 37 2057 39 2030 39 1978 40 1889 1784 1713

1675 47 1686 47 1640 48 1623 49 1557 51 1501 1455 1360

1489 53 1470 54 1436 55 1409 56 1361 58 1318 1243 1130

1307 61 1265 63 1234 64 1203 66 1168 68 1096 1053 991

2134 46 2103 47 2029 48 1941 51 1906 51 1818 1733 1625

1678 58 1643 60 1643 60 1577 62 1527 64 1489 1423 1339

1453 68 1440 68 1426 69 1363 72 1349 73 1314 1253 1205

1259 78 1239 79 1220 80 1181 83 1159 85 1118 1082 1015

1.

CFM in chart is without filters(s). Filters do not ship with this furnace, but must be provided by the installer. If the furnace requires two return filters, this chart assumes both filters are installed.

2.

All furnaces ship as high speed cooling and medium-speed heating. Installer must adjust blower cooling & heating speed as needed.

3.

For most jobs, about 400 CFM per ton when cooling is desirable.

4.

INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.

5.

The chart is for information only. For satisfactory operation, external static pressure must not exceed value shown on rating plate. The shaded area indicates ranges in excess of maximum external static pressure allowed when heating. The data for 0.6" w.c. to 0.8" w.c. is shown for air conditioning purposes only.

6.

The above chart is for U.S. furnaces installed at 0-2000 feet. At higher altitudes, a properly de-rated unit will have approximately the same temperature rise at a particular CFM, while the ESP at that CFM will be lower.

12

BLOWER PERFORMANCE SPECIFICATIONS

E IS E R UR ERAT MP TE

13

WIRING DIAGRAMS *MH95[0453,0704,0905]*XAB

*MH95[0703,0904,1155]*XAC

24 VAC

HUMIDIFIER

24 VAC

24V THERMOSTAT

CONNECTIONS

C G R

115 VAC

W Y

BK

INTEGRATED

CONTROL

MODULE

ON OFF

2N D

STAGE

DE LAY

MODE

HE AT

OFF

DE LAY

* FACTORY SETTINGS

SHOWN

*

*

*

OR

WH

GY

BLOWER

COMPARTMENT

DOOR SWITCH

(OPEN WHEN

DOOR OPEN)

C

HUMIDIFIER

TO

MICRO

TR (6)

GND (8)

MVC (9)

MVH (12)

GND

MVL(2)

NO

FRONT COVER

PRESSURE SWITCH

C

PS (10)

PSO (4)

HLI (7)

HLO (1)

C

INTEGRATED

CONTROL MODULE

C

HI

GAS

VALVE

PM

ID BLOWER

PRESSURE

SWITCH

NO

FUSE

3 2

6

9

5

8

1 2

7

1 1 1 0

4

1

OR

PK

OR

BL

YL

GR

OR

BR

GY

G

Y

W

R

RO2 (11)

RO1 (5)

F S

OR

GY

OR

RD

GY

WH

TH (3)

XFMR-H

24 VAC

115 VAC

FLAME SENSOR

40 VA

TRANSFORMER

GND

DIAGNOSTIC

LED

SE E

NOTE 6

1 1 5 VAC HO T AND PA RK T ERM IN AL S

COOL -H HE AT -H

LINE-H

SEE

NOTE 4

WH

BK (HI)

BL (MED)

OR (MED LOW)

RD (LOW)

RD

2

1

BK

BR

BR

BK

PK

YL

WH

FS

IGN

HOT SURFACE

IGNITER

IND

HE

L

O

AT

-H

ID

BLWR

COOL-H

HI

HE

AT

-H

CIRCULATOR

BLWR

CAPACITOR

BLOWER COMPARTMENT

BURNER COMPARTMENT

GND

BK

WH

INDUCED DRAFT

BLOWER

PU

M ANUAL RESET

AUX ILIARY LIMITS

(1) IN UPFLOW

BLOWER DECK

(2) IN C'FLOW

BLOWER HOUSING

WH

EAC-H

LINE-H

DOOR

SWITCH

ELECTRONIC

AIR CLEANER

JUNCTION BOX

DISCONNECT

WH

PU

BL

RD OR

YL

OR

L GND N

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

OVERCURRENT PROTECTION DEVICE

N

O

C

PK RD

WH

ID BLOWER

PRESSURE

SWITCH

2 CIRCUIT

CONNECTOR

HOT

SURFACE

IGNITER

24 VAC

HUMIDIFIER

PM

C

HI 3

1

2

0140F00592 REV. B

GY

BR

C

GAS VALVE

OR

N

O

FRONT COVER

PRESSURE SWITCH

GND GR

0 STEADY ON = NORMAL OPERATION

OFF = CONTROL FAILURE

1 1 FLASH =

2 2 FLASHES = PRESSURE SW ITCH STUCK CLOSED

3 3 FLASHES = PRESSURE SWITCH STUCK OPEN

4 4 FLASHES = OPEN HIGH LIMIT

5 5 FLASHES = FLAME SENSE WITHOUT GAS VALVE

6 6 FLASHES =

7 FLASHES = LOW FLAME SIGNAL

8 8 FLASHES = CHECK IGNITER AT IMPROPER GROUNDING

C CONTINUOUS/RAPID FLASHES = REVERSED 115 VAC POLARITY

COLOR CODES:

YL YELLOW

OR ORANGE

PU PURPLE

GN GREEN

BK BLACK

PK PINK

BR BROW N

WH W HITE

BL BLUE

GY GRAY

RD RED

GY

BL

FLAME

SENSOR

JUNCTION

BOX

WH

BK

LOW VOLTAGE (24V)

LOW VOLTAGE FIELD

HI VOLTAGE (115V)

HI VOLTAGE FIELD

JUNCTION

TERMINAL

INTERNAL TO

INTEGRATED CONTROL

PLUG CONNECTION

N

GND

L

EQUIPMENT GND

FIELD GND

FIELD SPLICE

SWITCH (TEMP.)

IGNITER

SWITCH (PRESS.)

OVERCURRENT

PROT. DEVICE

NOTES:

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

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

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

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

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

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

6. TO RECALL THE LAST 5 FAULTS, MOST RECENT TO LEAS T 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.

14

WIRING DIAGRAMS *MH95[0453,0704,0905]*XAC

*MH95[0703,0904,1155]*XAD

24 VAC

HUMIDIFIER

24 VAC

115 VAC

24V THERMOSTAT

CONNECTIONS

C G R W Y

BK

FUSE

INTEGRATED

CONTROL

MODULE

ON OFF

2ND

STAGE

DELAY *

MODE *

HEAT

OFF

DELAY

* FACTORY SETTINGS

SHOW N

*

OR

WH

GY

40 VA

TRANSFORMER

3 2

6 5

9 8 7

12 11 10

1

4

GY

OR

OR

RD

GY

OR

PK

OR

BL

YL

GR

OR

BR

GY

BLOWER

COMPARTMENT

DOOR SW ITCH

(OPEN WHEN

DOOR OPEN)

C

G

Y

W

R

TO

MICRO

TH (3)

HUMIDIFIER

TR (6)

GND (8)

MVC (9)

MVH (12)

GND

MVL(2)

NO

FRONT COVER

PRESSURE SWITCH

C

PS (10)

PSO (4)

HLI (7)

C

HLO (1)

RO2 (11)

C

HI

PM

ID BLOWER

PRESSURE

SWITCH

NO

GAS

VALVE

MANUAL RESET AUXILIARY

LIMIT CONTROLS

AUTO RESET

PRIMARY

LIMIT

CONTROL

RO1 (5)

INTEGRATED

CONTROL MODULE

MANUAL RESET ROLLOUT

LIMIT CONTROL(S)

(SINGLE CONTROL ON 45K BTU)

24 VAC

40 VA

TRANSFORMER

WH

FS

XFMR-H 115 VAC

FLAME SENSOR

GND

DIAGNOSTIC

LED

SEE

NOTE 6

115 VAC HOT AND PARK TERMINALS

COOL-H HEAT-H

LINE-H

SEE

NOTE 4

WH

BR

BR

2

1

BK (HI)

BL (MED)

OR (MED LOW)

RD (LOW)

CIRCULATOR

BLOWER

RD

BK

BK

PK

WH FS

IGN

IND

HOT SURFACE

IGNITER

HE

LO

AT-H

ID

BLWR

YL

COOL-H

HI

HE

AT

-H

CIRCULATOR

BLWR

CAPACITOR

BLOWER COMPARTMENT

BURNER COMPARTMENT

GND

COLOR CODES:

YL YELLOW

OR ORANGE

PU PURPLE

GN GREEN

BK BLACK

BK

WH

INDUCED DRAFT

BLOWER

AUTO RESET

PRIMARY LIMIT

CONTROL

PK PINK

BR BROWN

WH WHITE

BL BLUE

GY GRAY

RD RED

0140F00663 REV. A

MANUAL RESET

AUXILIARY LIMITS

(1) IN UPFLOW

BLOWER DECK

(2) IN C'FLOW

BLOWER HOUSING

WH

WH

BL

PU

PU

YL

RD OR OR

N

O

C

PK RD

WH

ID BLOWER

PRESSURE

SWITCH

2 CIRCUIT

CONNECTOR

HOT

SURFACE

IGNITER

MANUAL RESET ROLLOUT LIMIT CONTROL(S)

( SINGLE CONTROL ON 45K BTU )

24 VAC

HUMIDIFIER

FRONT COVER

PRESSURE SWITCH

PM

1 GY

C

N

O GY

GND GR

C

HI

3

2

BR

OR

GAS VALVE (HONEY WELL)

0 STEADY ON = NORMAL OPERATION

OFF = CONTROL FAILURE

1 1 FLASH = SYSTEM LOCKOUT (RETRIES EXCEEDED)

2 2 FLASHES = PRESSURE SWITCH STUCK CLOSED

3 3 FLASHES = PRESSURE SWITCH STUCK OPEN

4 4 FLASHES = OPEN HIGH LIMIT

5 5 FLASHES = FLAME SENSE WITHOUT GAS VALVE

6 6 FLASHES = OPEN ROLLOUT OR OPEN FUSE

7 7 FLASHES = LOW FLAME SIGNAL

8 8 FLASHES = CHECK IGNITER OR IMPROPER GROUNDING

C CONTINUOUS/RAPID FLASHES = REVERSED 115 VAC POLARITY

BL

FLAME

SENSOR

WH

BK

EAC-H

LINE-H

DOOR

SWITCH

ELECTRONIC

AIR CLEANER

JUNCTION BOX

WARNING:

DISCONNECT POWER

BEFORE SERVICING.

WIRING TO UNIT

MUST BE

DISCONNECT

PROPERLY

POLARIZED

AND GROUNDED.

L GND N

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

OVERCURRENT PROTECTION DEVICE

JUNCTION

BOX

LOW VOLTAGE (24V)

LOW VOLTAGE FIELD

HI VOLTAGE (115V)

HI VOLTAGE FIELD

JUNCTION

TERMINAL

INTERNAL TO

INTEGRATED CONTROL

PLUG CONNECTION

WARNING:DISCONNECT POWER BEFORE

SERVICING.WIRING TO UNIT MUST BE

PROPERLY POLARIZED AND GROUNDED.

DISCONNECT

N

GND

L

EQUIPMENT GND

FIELD GND

FIELD SPLICE

SWITCH (TEMP.)

IGNITER

SWITCH (PRESS.)

OVERCURRENT

PROT. DEVICE

NOTES:

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

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

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

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

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

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

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.

15

WIRING DIAGRAMS *MH950905CXA*

16

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