Amana AMH8 Installation Instructions Manual

Amana AMH8 Installation Instructions Manual

Gas-fired warm air furnace
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AMH8
G
-F
AS
IRED
I
NSTALLATION
ATTENTION INSTALLING PERSONNEL
As a professional installer, you have an obligation to know the product better than the customer.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual.
Pay special attention to all safety warnings. Often during installation or repair, it is possible to place yourself
in a position which is more hazardous than when the unit is in operation.
Remember, it is your responsibility to install the product safely and to know it well enough
Safety is a matter of common sense...a matter of thinking before acting.
Most dealers have a list of specific, good safety practices...follow them.
The precautions listed in this Installation Manual are intended as supplemental to existing practices.
However, if there is a direct conflict between existing practices and the content of this manual,
IO-296C
W
A
ARM
IR
I
NSTRUCTIONS
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements
embodied in the American National
Standard / National Standard of Canada
ANSI Z21.47·CSA-2.3 Gas Fired Central
Furnaces.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
This includes all safety precautions and related items.
to be able to instruct a customer in its safe use.
the precautions listed here take precedence.
*NOTE: Please contact your distributor or our
website for the applicable product data book
referred to in this manual.
®
is a trademark of Maytag Corporation and is used under
license to Goodman Company, L.P. All rights reserved.
www.amana-hac.com
© 2006 - 2008 Goodman Company, L.P.
F
URNACE
(CATEGORY I)
®
C
US
08/08

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Summary of Contents for Amana AMH8

  • Page 1 AMH8 IRED URNACE NSTALLATION NSTRUCTIONS Installer: Affix all manuals adjacent to the unit. (CATEGORY I) These furnaces comply with requirements embodied in the American National ® Standard / National Standard of Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces. RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
  • Page 2: Table Of Contents

    Table of Contents I. GENERAL INFORMATION ..............................4 ................................4 NSTALLER ..............................4 RANSPORTATION AMAGE II. SAFETY ................................... 4 (ESD) P ......................... 5 LECTROSTATIC ISCHARGE RECAUTIONS III. PRODUCT APPLICATION ............................... 5 IV. LOCATION REQUIREMENTS AND CONSIDERATIONS ....................6 ..................................6 ENERAL ............................
  • Page 3 Table of Contents XII. START-UP PROCEDURE AND ADJUSTMENT ......................22 ..............................22 URNACE OPERATION ............................... 22 URNACE TART ..............................22 URNACE HUTDOWN ..........................23 UPPLY RESSURE EASUREMENT 36G22 G ..........................23 HITE ODGERS ALVE ....................23 ANIFOLD RESSURE EASUREMENT AND DJUSTMENT ) ......................
  • Page 4: General Information

    I. GENERAL INFORMATION WARNING WARNING O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION, THIS FURNACE MUST BE ATEGORY VENTED. O NOT VENT USING ATEGORY VENTING. HOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN ROVISIONS MUST BE MADE FOR VENTING COMBUSTION PRODUCTS OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE OUTDOORS THROUGH A PROPER VENTING SYSTEM.
  • Page 5: Electrostatic Discharge (Esd) Precautions

    This furnace can be used in the following non-industrial commercial applications: WARNING Schools, Office buildings, Churches, Retail stores, O PREVENT POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH Nursing homes, Hotels/motels, Common or office areas DUE TO ELECTRICAL SHOCK, THE FURNACE MUST BE LOCATED TO PROTECT In such applications , the furnace must be installed with the THE ELECTRICAL COMPONENTS FROM WATER.
  • Page 6: Location Requirements And Considerations

    Model type determines which installation procedures must be located not less than 18 inches (457 mm) above the floor. used. For AMH8 models, you must follow instructions for Horizontal Protect the furnace from physical damage by vehicles. Left, Horizontal Right or Upflow installations only. AMH8 models...
  • Page 7: Clearances And Accessibility

    • If the furnace is installed horizontally, the furnace access PROVIDE 8" MINMUM CLEARANCE BETWEEN doors must be vertical so that the burners fire horizontally CENTER ROD AND FURNACE CABINET into the heat exchanger. Do not install the unit with the TO ALLOW FOR CIRCULATOR BLOWER REMOVAL access doors on the “up/top”...
  • Page 8: Thermostat Location

    If resizing is required on any portion of the venting system, use the If this furnace is to be installed in the same space with other gas appropriate table in Appendix G in the latest edition of the National appliances, such as a water heater, ensure there is an adequate Fuel Gas Code ANSI Z223.1 and/or CAN/CSA B149 Installation supply of combustion and ventilation air for the other appliances.
  • Page 9 Space, Unconfined. Chimney or Gas Vent Ventilation louvers For purposes of this Code, a space whose volume is not (each end of attic) NOTE: The inlet and outlet air less than 50 cubic feet per 1,000 BTU per hour of the openings must each have a free aggregate input rating of all appliances installed in that area of not less than one square...
  • Page 10: Category I Venting (Vertical Venting)

    4. When ducts are used, they shall be of the same cross- VI. CATEGORY I VENTING (VERTICAL VENTING) sectional area as the free area of the openings to which they connect. The minimum dimension of rectangular WARNING air ducts shall not be less than 3 inches. O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION, NOTE: The single opening must have a free area of not less than one...
  • Page 11: Exterior Masonry Chimneys

    VII. EXTERIOR MASONRY CHIMNEYS - CATEGORY I FURNACES ONLY An exterior masonry chimney is defined as a “Masonry chimney exposed to the outdoors on one or more sides below the roof line.” The ability to use a clay lined masonry chimney depends on a parameter not associated with interior chimneys.
  • Page 12: Check 1 - Proper Chimney Termination

    10’ or Less Proper Chimney Line, terminate with Termination? listed vent cap (Check 1) (Fix 1) 2’ Min. 2’ Min. 3’ Min. Wall or Chimney channel Change venting free of solid and Parapet liquid fuel arrangements appliances? (Fix 2) (Check 2) Chimney 10’...
  • Page 13: Check 4 - Debris In Cleanout

    a) Crown leaning • Tile sections misaligned b) Bricks missing • Tile sections missing c) Mortar missing • Gaps between tile sections d) Tile liner cracked • Signs of condensate drainage at the cleanout or vent e) No tile liner connectors Salt staining at mortar joints.
  • Page 14: Fix 2 -Change Venting Arrangements

    2 -C used during construction and remodeling. Various HANGE VENTING ARRANGEMENTS commercial and industrial processes may also be If the masonry chimney has more than one channel, it may be sources of chlorine/fluorine compounds. possible to vent the gas appliances into one channel and vent •...
  • Page 15: Wiring Harness

    Line voltage connections can be made through either the right or WARNING left side panel. The furnace is shipped configured for a left side electrical connection. To make electrical connections through the O AVOID THE RISK OF INJURY, ELECTRICAL SHOCK OR DEATH, THE FURNACE opposite side of the furnace, the junction box must be relocated to MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR, the left side prior to making electrical connections.
  • Page 16: Volt Thermostat Wiring

    This furnace is equipped with a blower door interlock switch 115 V ONNECTION OF CCESSORIES which interrupts unit voltage when the blower door is opened for LECTRONIC LEANER servicing. Do not defeat this switch. 24 V HERMOSTAT IRING WARNING NOTE: Wire routing must not interfere with circulator blower O AVOID PERSONAL INJURY, ELECTRICAL SHOCK OR DEATH, DISCONNECT operation, filter removal, or routine maintenance.
  • Page 17: Gas Supply And Piping

    It is important to check and adjust the input rate of the furnace to IX. GAS SUPPLY AND PIPING prevent an overfiring situation. Overfiring can cause premature ENERAL heat exchanger failure. The input is controlled by the supply pressure, orifice size, manifold pressure and heating (calorific) The furnace rating plate includes the approved furnace gas input value of the gas.
  • Page 18: Propane Gas Conversion

    Contact your distributor for a tabular listing of appropriate Meter Time In Minutes and Seconds For Normal Input Rating of Furnaces Equipped For Use With Natural Gas manufacturer’s kits for propane gas and/or high altitude installations. The indicated kits must be used to insure safe and INP UT M ETER HEA T...
  • Page 19: Upflow Installations

    • Install a manual shutoff valve between the gas meter and IPING HECKS unit within six feet of the unit. If a union is installed, the Before placing unit in operation, leak test the unit and gas union must be downstream of the manual shutoff valve, connections.
  • Page 20: Circulating Air And Filters

    3. Pressure drop in lines between regulators, and between X. CIRCULATING AIR AND FILTERS second stage regulator and the appliance. Pipe size will depend on length of pipe run and total load of all Ductwork - Air appliances. WARNING Complete information regarding tank sizing for vaporization, recommended regulator settings, and pipe sizing is available EVER ALLOW THE PRODUCTS OF COMBUSTION, INCLUDING CARBON from most regulator manufacturers and propane gas suppliers.
  • Page 21: Upright Installations

    • Integrated control module monitors flame presence. Gas PRIGHT NSTALLATIONS valve will remain open only if flame is detected. Depending on the installation and/or customer preference, • differing filter arrangements can be applied. Filters can be Circulator blower is energized on high heat speed following installed in the central return register or a side panel external filter a fixed thirty second blower on delay.
  • Page 22: Cooling Mode

    If the furnace is operating in the low-stage heating mode This furnace is also equipped with a self-diagnosing electronic when thermostat contacts open, circulator remains at low control module. In the event a furnace component is not operating heat speed for the selected delay off period. properly, the control module LED will flash on and off in a factory- programmed sequence, depending on the problem encountered.
  • Page 23: Gas Supply Pressure Measurement

    NOTE: If measuring gas pressure at the drip leg, a field supplied UPPLY RESSURE EASUREMENT hose barb fitting must be installed prior to making the hose connection. If using the inlet pressure boss on the gas valve, CAUTION then use the 36G Valve Pressure Check Kit, Goodman Part No. 0151K00000S.
  • Page 24: Gas Input Rate Measurement (Natural Gas Only )

    13. Turn outlet pressure test screw in to seal pressure port An incorrect temperature rise can cause condensing in or (clockwise, 7 in-lb minimum). overheating of the heat exchanger. Determine and adjust the temperature rise as follows. The temperature rise must be within 14.
  • Page 25: Circulator Blower Fan Timing Adjustment

    1. Turn OFF power to the furnace. XIII. OPERATIONAL CHECKS 2. Select the heating and cooling blower speeds that match the installation requirements from the airflow table in the WARNING Product Data Book applicable to your model.(Please contact your distributor or our website for the applicable O AVOID PERSONAL INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL product data book referred to in this manual.) COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT.
  • Page 26: Safety Circuit Description

    1. Disconnect all power to the furnace. Do not touch the XIV. SAFETY CIRCUIT DESCRIPTION integrated control module or any wire connected to the ENERAL control prior to discharging your body’s electrostatic charge to ground. A number of safety circuits are employed to ensure safe and proper furnace operation.
  • Page 27: Maintenance

    XVI. MAINTENANCE ILTER EMOVAL Depending on the installation, differing filter arrangements can WARNING be applied. Filters can be installed in either the central return register or a side panel external filter rack (upflow only). A media O AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DISCONNECT ELECTRICAL air filter or electronic air cleaner can be used as an alternate filter.
  • Page 28: Burners

    URNERS XVII. BEFORE LEAVING AN INSTALLATION • Cycle the furnace with the thermostat at least three times. WARNING Verify cooling and fan only operation. • Review the Owner’s Manual with the homeowner and O PREVENT PERSONAL INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL discuss proper furnace operation and maintenance.
  • Page 29: Troubleshooting Chart

    TROUBLESHOOTING CHART Fault Symptoms of Associated Corrective Cautions Possible Description(s) Abnormal Operation & Notes LED Code Causes Action • Assure 115 and 24 volt • Furnace fails to operate. NONE • No 115 volt power • Manual disconnect switch • Turn power OFF power to furnace to furnace, or no 24 OFF, door switch open, or...
  • Page 30: Hart

    TROUBLESHOOTING CHART Fault Associated Symptoms of Corrective Cautions Possible Description(s) Abnormal Operation LED Code Action & Notes Causes • Check primary limit. • Turn power OFF • Insufficient conditioned air • Circulator blower runs • Primary limit Replace if necessary. over the heat exchanger.
  • Page 31: Wiring Diagram

    WIRING DIAGRAM FOR AMH8 WARNING:DISCONNECT POWER BEFORE INTEGRATED HUMIDIFIER CONTROL MODULE SERVICING.WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED. XFMR (6) GND (8) 24 VAC MVC (9) HUMIDIFIER VALVE MVH (12) MVL (2) ID BLOWER PRESSURE SWITCH PS (10)
  • Page 32 They are simple to service and forgiving to operate. We use quality materials and components. Finally, every unit is run tested before it leaves the factory. That’s why we know. . . There’s No Better Quality. Visit our website at www.goodmanmfg.com or www.amana-hac.com for information on: •...

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