Goodman GMS8 Installation & Operating Instructions Manual
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Goodman GMS8 Installation & Operating Instructions Manual

Gas fired warm air furnace single stage
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See also: Technical Manual
These furnaces comply with requirements
embodied in the American National
®
Standard / National Standard of Canada
ANSI Z21.47·CSA-2.3 Gas Fired Central
C
US
Furnaces.
INSTALLATION & OPERATING
INSTRUCTIONS for
GMS8, GDS8 and GHS8
GAS FIRED WARM AIR FURNACE
SINGLE STAGE
(CATEGORY 1)
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all
safety precautions and related items.
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 to be able to instruct a
customer in its safe use.
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, 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.
IO-242D
2004-2006 Goodman Manufacturing Company, L.P.
2/06
©

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Summary of Contents for Goodman GMS8

  • Page 1 Standard / National Standard of Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces. INSTALLATION & OPERATING INSTRUCTIONS for GMS8, GDS8 and GHS8 GAS FIRED WARM AIR FURNACE SINGLE STAGE (CATEGORY 1) RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION. ATTENTION INSTALLING PERSONNEL As a professional installer you have an obligation to know the product better than the customer.

  • Page 2: Table Of Contents

    Table of Contents .............................. 4 WNER ............................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 ........................7 LEARANCES AND CCESSIBILITY ..........................
  • 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 36F22 G ....................... 23 HITE ODGERS ALVE 36G22 G ......................23 HITE ODGERS ALVE ................

  • Page 4: T O The Owner

    NSTALLER WARNING Before installing this unit, please read this manual thoroughly to familiarize yourself with specific items which must be adhered to, HOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN including but not limited to: unit maximum external static pressure, OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE gas pressures, BTU input rating, proper electrical connections, TURNING OFF THE ELECTRICAL SUPPLY.

  • Page 5: Product Application

    This furnace can be used in the following non-industrial WARNING commercial applications: 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

    For GDS models, you must follow instructions for Downflow WARNING installation only. GDS models are not approved for Horizontal or Upflow installations. O PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE, WARNING DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR RECREATIONAL VEHICLE.

  • Page 7: Clearances And Accessibility

    located not less than 18 inches (457 mm) above the floor. V E NT S ID E S FR ON T B A CK Protect the furnace from physical damage by vehicles. B 1-V EN T S IN G LE (P LEN U M ) •...

  • Page 8: Combustion And Ventilation Air Requirements

    any exhaust fans, such as range hoods and bathroom V. COMBUSTION AND VENTILATION AIR REQUIREMENTS exhausts, so they shall operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers; W ARNING d. Follow the lighting instructions. Place the appliance being inspected in operation.
  • Page 9 (d) In addition to air needed for combustion, air shall be communicate directly, or by ducts, with the outdoors or supplied for ventilation, including all air required for comfort spaces (crawl or attic) that freely communicate with the and proper working conditions for personnel. outdoors.

  • Page 10: Category I Venting (Vertical Venting)

    shall have a free area of not less than one square inch per 4,000 VI. CATEGORY I VENTING (VERTICAL VENTING) BTU per hour of the total input rating of all appliances in the enclosure. WARNING Equipment Located in Confined Spaces; All Air from Outdoors. See 5.3.3-b.

  • Page 11: Exterior Masonry Chimneys

    Researchers have discovered that the winter design temperatures have a direct impact on the suitability of this type of venting. In most situations, the existing masonry chimneys will require a properly sized metallic liner. WARNING Supply Air OSSIBILITY OF PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DAMAGING CONDENSATION CAN OCCUR INSIDE MASONRY CHIMNEYS WHEN A AFUE SINGLE FAN ASSISTED...

  • Page 12: Check 1 - Proper Chimney Termination

    Proper Chimney Line, terminate with Termination? listed vent cap (Fix 1) (Check 1) Chimney channel Change venting free of solid and liquid fuel arrangements appliances? (Fix 2) (Check 2) Rebuild crown Crown in good (Fix 3) condition and/or Reline (Check 3) (Fix 4) Cleanout free of Reline...

  • Page 13: Check 4 - Debris In Cleanout

    c) Mortar missing • Gaps between tile sections d) Tile liner cracked • Signs of condensate drainage at the cleanout or vent connectors e) No tile liner • Mortar protruding from between tile sections Salt staining at mortar joints. (White stains, and mortar becomes sandy and/or erodes.) •...

  • Page 14: Electrical Connections

    the solid or liquid fuel appliance(s) into another channel(s). Do industrial processes may also be sources of chlorine/ not vent an 80+ Furnace inside of a metal liner with other fluorine compounds. appliances vented outside the liner. • Heavier gauge 300 and 400 series stainless steel liners were developed for use with oil or solid fuel appliances.

  • 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

    115 V 2. Resistance should measure 10 ohms or less. ONNECTION OF CCESSORIES UMIDIFIER This furnace is equipped with a blower door interlock switch LECTRONIC LEANER which interrupts unit voltage when the blower door is opened for servicing. Do not defeat this switch. WARNING 24 V HERMOSTAT...

  • Page 17: Gas Supply And Piping

    Furnace 2 circulation blowers of the two furnaces. Furnaces must be same Furnace 1 model and heat / cool speeds the same. In addition, both furnaces must be powered by separate circuits originating from the same power leg in the main electrical box (hot and neutral must be in phase).

  • Page 18: Firing Rate

    using a heating value of approximately 1,000 Btu/hr, and should IRING not normally require change. Most cases will not require a change Input = 1,000 (heating value of the gas) X 3600 (constant) / 52.6 at altitudes up to 7,500 feet. For use at altitudes in excess of 4,500 (meter time for 1 ft of gas) feet, refer to the following table for maximum input rates based on...

  • Page 19: Gas Piping Connections

    This unit is configured for natural gas. The appropriate gas valve to keep it from turning. The orientation of the gas manufacturer’s propane gas conversion kit, must be applied for valve on the manifold must be maintained as shipped from propane gas installations.

  • Page 20: Counterflow Installations

    must also be supplied by the installer. In some cases, the A gas detecting warning system is the only reliable way to detect a installer may also need to supply a transition piece from 1/ propane gas leak. Rust can reduce the level of odorant in propane 2 inch to another pipe size.

  • Page 21: Circulating Air And Filters

    outlet air duct. This opening shall be accessible when the furnace Sizing Between First and Second Stage Regulator* is installed and shall be of such a size that the heat exchanger Maximum Propane Capacities listed are based on 2 psig pressure drop at 10 psig setting. Capacities in 1,000 BTU/hour.

  • Page 22: Sequence Of Operation

    XI. SEQUENCE OF OPERATION Check for leaks using an approved chloride-free soap and water solution, an electronic combustible gas detector, or other approved (INTEGRATED IGNITION CONTROL) method. Verify that all required kits (propane gas, high altitude, Refer to Timing Charts for sequencing. etc.) have been appropriately installed.

  • Page 23: G S P M

    Pressure Regulator 4. Measure furnace gas supply pressure with burners firing. Outlet Pressure Adjustment Supply pressure must be within the range specified in the (Under Cap Screw) table. Inlet Gas Supply Pressure INLET OUTLET Natural Gas Minimum: 5.0" w.c. Maximum:10.0" w.c. Propane Gas Minimum: 11.0"...

  • Page 24: G M Pma

    9. Retest for leaks. If bubbles form, shut down gas and fix 5. Using a leak detection solution or non-chlorine soap suds, leaks immediately. check for leaks at hose connection. Bubbles forming indicate a leak. SHUT OFF GAS AND FIX ALL LEAKS 10.

  • Page 25: Temperature Rise

    5. Turn ON gas and relight appliances turned off in step 1. HIGH, and the heating blower speed is set as indicated in the Ensure all the appliances are functioning properly and that Product Data Book. These blower speeds should be adjusted by all pilot burners are operating.

  • Page 26: Burner Flame

    URNER LAME WARNING The burner flames should be inspected with the burner compartment door installed. Flames should be stable, quiet, O PREVENT PREMATURE FAILURE OF HEAT EXCHANGER, PROPERTY DAMAGE, soft, and blue (dust may cause orange tips but they must not be PERSONAL INJURY OR DEATH, DO NOT ADJUST THE LIMIT CONTROL (FACTORY yellow).

  • Page 27: Troubleshooting

    XV. TROUBLESHOOTING XVI. MAINTENANCE (ESD) P LECTROSTATIC ISCHARGE RECAUTIONS WARNING NOTE: Discharge body’s static electricity before touching unit. An electrostatic discharge can adversely affect electrical components. O AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY MAINTENANCE. IF YOU MUST HANDLE THE Use the following precautions during furnace installation and IGNITER, HANDLE WITH CARE.

  • Page 28: Upright Filter Removal

    register or a side panel external filter rack (upflow only). A media Periodically during the heating season make a visual check of the air filter or electronic air cleaner can be used as an alternate filter. burner flames. Turn the furnace on at the thermostat. Wait a few Follow the filter sizes given in the Recommended Minimum Filter minutes, since any dislodged dust will alter the normal flame size table to ensure proper unit performance.
  • Page 29 TROUBLESHOOTING CHART Associated Symptoms of Abnormal Fault Description(s) Possible Causes Corrective Action Cautions and Notes Operation LED Code • Assure 115 and 24 volt • Furnace fails to operate. • No 115 volt power • Manual disconnect switch • Turn power OFF NONE power to furnace to furnace, or no 24...
  • Page 30 • Check and correct wiring. continuously. steady on • Normal operation. • LED is steady on LED Flash code will cease if power to the control module is interrupted through the disconnect or door switch. Applies to GMS8/GDS8/GHS8 Models only.
  • Page 31 WIRING DIAGRAM FOR GMS8/GDS8/GHS8 115V XFMR...
  • Page 32 Visit our website at www.goodmanmfg.com or www.amana-hac.com for information on: • Products • Warranties • Customer Services • Parts • Contractor Programs and Training • Financing Options Goodman Manufacturing Company, L.P. 2550 North Loop West, Suite 400, Houston, TX 77092 www.goodmanmfg.com 2004-2006 Goodman Manufacturing Company, L.P. ©...

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