Amana Furnace AMH User Manual

TECHNICAL MANUTECHNICAL MANU

TECHNICAL MANU

TECHNICAL MANUTECHNICAL MANU

ALAL

AMH8 33-3/8" 80% Gas Furnace

80% AFUE, T win Comfort™,

Multi-Speed, Upflow/Horizontal (NOx)

• 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.

is a registered trademark of Maytag Corporation or its related companies

RT6621017r1

April 2010

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.

A M H 8 070 3 A X A A

ADDITIONAL PRODUCT TYPE:

A: Amana

Brand

SUPPLY TYPE:

M: Upflow/Horizontal

FURNA CE TYPE:

H: Twin Comfort

Multi-Speed

AFUE:

8: 80%

CABINET WID TH:

A: 14" C: 21" B: 17 1/2" D : 24 1/2"

AIRFLOW CAPABILITY:

3: 1200 4: 1600 5: 2000

FEATURES:

N: Natural Gas

X: Low NOx

MAJOR REVISI ON:

A: Initial Release

MINOR REVISION:

A: Init i al Re leas e

N OMINAL CAPA CITY

045: 45,000 BT UH 070: 70,000 BT UH 090: 90,000 BT UH 11 5: 115,000 BTUH 14 0: 140,000 BTUH

HIGH VOLTAGE!

WARNING

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.

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

WARNING

ments 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.

Installation and repair of this unit should be performed individuals meeting the require-

ONLY by

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.

AMH80453AXC* AMH80703AXC* AMH80704BXC* AMH80903BXC* AMH80904BXC* AMH80905CXC* AMH81155CXC* AMH81405DXC*

* Indicates minor revision & is not used for order entry or inventory management

WARNING

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

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.

WARNING

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 damage, personal injury, or death,

PRODUCT DESIGN

General Operation

The AMH8 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.

WARNING

O PREVENT POSSI BLE PERSONAL INJURY OR DEATH DUE TO ASPHYX I AT I ON,

THI S FURNACE MUST BE

CATEGORY III VE NT I NG.

1. Category I Venting is venting at a non-positive pressure. A furnace vented as Category I is considered a fan-assisted appliance and the vent system does not have to be “gas tight.” NOTE: Single stage gas furnaces with induced draft blowers draw products of combustion through a heat exchanger allowing, in some instances, common venting with natural draft appliances (i.e. water heaters). All installations must be vented in accordance with National Fuel Gas Code NFPA 54/ANSI Z223.1 latest edition. In Canada, the furnaces must be vented in accordance with the National Standard of Canada, CAN/ CSA B149.1 and CAN/CSA B149.2 - latest editions and amendments.

NOTE: The vertical height of the Category I venting system must be at least as great as the horizontal length of the venting system.

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 propane gas and high altitude natural and propane gas operation are available. See High Altitude Derate chart for details.

ATEGORY I VENTED . DO NOT VENT USING

PRODUCT DESIGN

Accessibility Clearances (Minimum)

Unobstructed front clearance of 24" for servicing is recommended.

MINIMUM CLEARANCE TO COMBUSTIBLE MATERIALS - INCHES

Sides TopRear Front*

103611

* 24" clearance for serviceability recommended. ** Single Wall Vent (SW) to be used only as a conncetor. Refer to the venting tables outlined in the Installation Manual for additional venting requirements.

Vent

SW B

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.

INPUT PER BURNER - 22,500 BTUH NATURAL GAS / 20,000 BTUH L.P.

ELEVATION ABOVE SEA-LEVEL (FEET)

US BURNER

ORIFICE

CANADA BURNER

ORIFICE

HA-02 HIGH ALTITUDE CONVERSION KIT REQUIRED

Tabled data is based upon the furnace input being reduced for altitudes above sea level. U.S. 4% per 1,000 feet. Canada 10% derate for 2,000-4,000 feet.

2000 3000 4000 4500 5000 6000 7000 8000

44/55 44/55 45/56 45/56 46/57 47/58 47/58

44/55 47/57

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 Accessory Charts in Service Instructions.

COMPONENT IDENTIFICATION

Pressure Switch

Flue Pipe Connection

Induced Draft Blower

Gas Line

Entrance

Gas Valve

Rollout Limit

Junction Box

Tubular Heat Exchanger

躀

Transformer

Wiring Harness

Grommet

Gas Manifold

Inshot Burner

Integrated Control Module

Upflow/Horizontal

1 Tubular Heat Exchanger 2 Pressure Switch 3 Flue Pipe Connection 4 Induced Draft Blower 5 Gas Line Entrance 6 Gas Valve 7 Rollout Limit 8 Junction Box

Gas Line Entrance (Alternate)

Circulator Blower

Blower Door Interlock Switch

Note: Primary Limit Not Shown

9 Wiring Harness Grommet 10 Gas Manifold 11 Inshot Burner 12 Transformer 13 Integrated Control Module 14 Blower Door Interlock Swtich 15 Circulator Blower 16 Gas Line Entrance (Alternate)

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