Goodman GMS95 Installation Instructions Manual
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Goodman GMS95 Installation Instructions Manual

Gas-fired warm air furnace
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G
(Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace)
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the product better than the customer. This includes all safety
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
Remember, it is your responsibility to install the product safely and to know it well enough to be able to instruct a customer
Safety is a matter of common sense...a matter of thinking before acting. Most dealers have a list of specific good safety
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.
IO-277A
GMS95
-F
W
AS
IRED
I
NSTALLATION
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements
embodied in the American National Stan-
dard / National Standard of Canada ANSI
Z21.47·CSA-2.3 Gas Fired Central Fur-
naces.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
precautions and related items.
when the unit is in operation.
practices...follow them.
*NOTE: Please contact your distributor or our
website for the applicable product data book
referred to in this manual.
Goodman Manufacturing Company, L.P.
2550 North Loop West, Suite 400, Houston, TX 77092
www.goodmanmfg.com
2005 Goodman Manufacturing Company, L.P.
©
A
F
ARM
IR
I
NSTRUCTIONS
in its safe use.
URNACE
®
C
US
10/05

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  • Page 1 GMS95 IRED URNACE NSTALLATION NSTRUCTIONS Installer: Affix all manuals adjacent to the unit. (Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace) These furnaces comply with requirements embodied in the American National Stan- ® dard / National Standard of Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Fur-...

  • Page 2: Table Of Contents

    Table of Contents I. Component Identification ............................... 5 II. Safety ....................................6 (ESD) P ....................6 LECTROSTATIC ISCHARGE RECAUTIONS III. Product Application ..............................6 IV. Location Requirements & Considerations ........................7 ................................. 7 ENERAL ........................... 8 LEARANCES AND CCESSIBILITY ............................8 URNACE USPENSION ..........................
  • Page 3 RAIN YSTEM UALIFIED ERVICER ) ...................... 32 LAME ENSOR UALIFIED ERVICER ) ..................... 32 ASSAGES UALIFIED ERVICER XX. Internal Filter Removal ............................33 XXI. Before Leaving And Installation..........................33 XXII.Repair & Replacement Parts ........................... 33 GMS95 Wiring Diagram ..............................36...
  • Page 4 WNER WARNING It is important that you fill out the owner’s registration card and mail it today. This will assist us in contacting you should any service or F THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A warranty information change in the future. When filling in the regis- FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL tration card, be sure to include the model, manufacturing, and serial INJURY OR LOSS OF LIFE.

  • Page 5: Component Identification

    I. CO I. CO I. CO I. CO I. COMPO MPONENT ID NENT ID NENT ID NENT ID NENT IDENTIFI ENTIFI ENTIFI ENTIFIC C C C C A A A A A TI ENTIFI TIO O O O O N N N N N Upflow/Horizontal Counterflow/Horizontal Gas Valve...

  • Page 6: Ii. Safety

    II. SAFETY II. SAFETY II. SAFETY II. SAFETY II. SAFETY 2. Firmly touch a clean, unpainted, metal surface of the furnaces near the control. Any tools held in a person’s Please adhere to the following warnings and cautions when in- hand during grounding will be discharged.

  • Page 7: Location Requirements & Considerations

    Section X, Condensate Drain Lines and Trap for further WARNING details. • Ensure adequate combustion air is available for the furnace. Improper or insufficient combustion air can O PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE, expose building occupants to gas combustion products DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR RECREATIONAL that could include carbon monoxide.

  • Page 8: Clearances And Accessibility

    The following steps shall be followed with each appliance connected to the LEARANCES AND CCESSIBILITY venting system placed in operation, while any other appliances con- Installations must adhere to the clearances to combustible mate- nected to the venting system are not in operation: rials to which this furnace has been design certified.

  • Page 9: Combustion & Ventilation Air Requirements

    (c) In addition to air needed for combustion, process air shall be pro- vided as required for: cooling of equipment or material, controlling dew point, heating, drying, oxidation or dilution, safety exhaust, odor control, and air for compressors. (d) In addition to air needed for combustion, air shall be supplied for ventilation, including all air required for comfort and proper working DRAFTS OR DEAD SPOTS -BEHIND DOORS...
  • Page 10 Chimney or Gas Vent Chimney or Gas Vent NOTE: Each opening must have Ventilation louvers a free area of not less than one (each end o f attic) square inch per 1000 BTU of NOTE: The inlet and outlet air the total input rating of all equip- openings must each have a free ment in the enclosure, but not...

  • Page 11: Installation Positions

    5. When directly communicating with the outdoors, the single open- FURNACE MUST BE LEVEL ALTERNATE FROM END TO END ing shall have a minimum free area of 1 square inch per 3,000 VENT/FLUE FURNACE MUST BE LEVEL BTU per hour of total input rating of all equipment in the enclo- OR SLIGHTLY TILTED FORWARD COMBUSTION WITH THE DOORS 0"...

  • Page 12: Drain Pan

    This furnace is shipped from the factory configured for natural gas ALTERNATE FLUE AND ALTERNATE FLUE AND DISCHARGE Bottom COMBUSTION AIR PIPE COMBUSTION AIR PIPE at standard altitude. Propane gas installations require an orifice Return LOCATIONS LOCATIONS Duct change to compensate for the energy content difference between Connection natural and propane gas.

  • Page 13: Dual Certification : Non -Direct /Direct Vent

    ERTIFICATION IRECT IRECT ERMINATION OCATIONS This furnace is dual certified and may be installed as a non-direct NOTES: Refer to Section IV, Location Requirements and vent (single pipe) or direct vent (dual pipe) appliance. A non-direct Considerations for combustion air contaminant restrictions. vent installation requires only a vent/flue pipe, while a direct vent installation requires both a vent/flue pipe and a combustion air The following bullets and diagram describe the restrictions con-...

  • Page 14: Canadian Venting Requirements

    OMBUSTION ANADIAN ENTING EQUIREMENTS IRECT NSTALLATIONS In Canada, venting must conform to the requirements of the cur- On upflow units secure the combustion air intake pipe directly to rent CAN/CSA-B149 Installation Code. Use only CSA listed two or the air intake coupling. On counterflow units secure the combus- three inch diameter PVC or ABS pipe, solvent cement, and fittings tion air intake pipe to the air intake coupling using the rubber cou- throughout.
  • Page 15 2. Upflow and Counterflow units. REMOVE REMOVE REMOVE Loosen the worm gear hose clamps on the rubber elbow REMOVE 4 SCREWS PIPE PIPE 4 SCREWS and detach it from both the induced draft blower and the REMOVE vent/flue pipe. 3 SCREWS 3.

  • Page 16: Non -Direct Vent (Single Pipe ) Piping

    Counterflow units. Vent (Single Pipe) Piping - Vent/Flue Pipe Terminations for spe- cific details on termination construction. Remove plastic plug from alternate combustion air intake Although non-direct vent installations do not require a combus- location. Relocate and install plug in standard air intake tion air intake pipe, a minimum of one 90°...

  • Page 17: Direct Vent (Dual Pipe ) Piping

    For details concerning connection of pipes to the furnace, refer to the Section IX, Vent/Flue Pipe and Combustion Pipe - Standard Furnace Connections or Alternate Furnace Connections. 12 " Min To Roof Or LUE AND OMBUSTION ENGTHS AND IAMETERS Highest Anticipated Snow Level Refer to the following table for applicable length, elbows, and pipe diameter for construction of the vent/flue and combustion air intake...

  • Page 18: Vent /Intake Terminations For Installation Of Multiple Direct Vent Furnaces

    Horizontal terminations should be as shown in the following fig- ure. Refer to Section IX, Vent/Flue Pipe and Combustion Pipe - Termination Location for location restrictions. A 2 3/8 inch diameter wall penetration is required for 2” diameter pipe while a 3 1/2 inch diameter hole is required for 3”...

  • Page 19: Upright Installations

    In upright installations, the furnace’s drain hoses may exit either RIGHT SIDE PANEL the right or left side of the furnace. NOTE: If the alternate vent/flue RUBBER outlet is utilized in an upright installation, the drain trap and drain ELBOW connections must be located on the same side as the alternate RUBBER ELBOW DRAIN PORT...

  • Page 20: Horizontal Installations

    Make connections as follows: LTERNATE RAIN ONNECTIONS 1. Remove the rubber plug from the coil front cover drain port. Upright installations using the alternate vent/flue outlet will require Counterflow furnaces “right-side only” drain hoses to be connected as follows. Refer to Relocate the front cover pressure switch hose connection Section IX, Vent/Flue Pipe and Combustion Air Pipe for details on from the left side pressure tap to the right (down) side tap.

  • Page 21: Xi. Electrical Connections

    CAUTION INDUCED DRAFT BLOWER ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. DRAIN PORT IRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. HOSE B ERIFY PROPER OPERATION AFTER SERVICING. FRONT HOSE A COVER IRING ARNESS PRESSURE The wiring harness is an integral part of this furnace. Field alteration GREEN HOSE to comply with electrical codes should not be required.

  • Page 22: Volt Thermostat Wiring

    2. Remove and save the two screws securing the junction box 115 V ONNECTION OF CCESSORIES UMIDIFIER to the side panel. LECTRONIC LEANER 3. Relocate junction box and associated plugs and grommets to opposite side panel. Secure with screws removed in step WARNING O AVOID INJURY, ELECTRICAL SHOCK OR DEATH, DISCONNECT ELECTRICAL POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING.

  • Page 23: General

    propane gas spring from an appropriate manufacturer’s propane CAUTION gas conversion kit. Taps for measuring the gas supply pressure and manifold pressure are provided on the valve. The gas valve has a manual ON/OFF control located on the valve O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET itself.
  • Page 24 • • Install a drip leg to trap dirt and moisture before it can enter Connect the furnace to the building piping by one of the the gas valve. The drip leg must be a minimum of three following methods: inches long.

  • Page 25: Propane Gas Tanks And Piping

    the presence of gas is suspected, follow the instructions on Page 4 of this manual. CAUTION All propane gas equipment must conform to the safety standards of the National Board of Fire Underwriters, NBFU Manual 58. DGES OF SHEET METAL HOLES MAY BE SHARP. SE GLOVES AS A For satisfactory operation, propane gas pressure must be 11 inch PRECAUTION WHEN REMOVING HOLE PLUGS.

  • Page 26: Ductwork - Air Flow

    XIII. CIR XIII. CIR CULA A A A A TIN G AIR & FIL G AIR & FIL TERS S S S S XIII. CIR XIII. CIR XIII. CIRCUL TING AIR & FIL G AIR & FIL G AIR & FILTER COOLING AIRFLOW REQUIREMENT (CFM) UCTWORK 1000...

  • Page 27: Horizontal Installations

    3. Close the manual gas shutoff valve external to the furnace. ORIZONTAL NSTALLATIONS 4. Replace the burner compartment door. Filters must be installed in either the central return register or in the return air duct work. UPPLY RESSURE EASUREMENT XIV. ST .

  • Page 28: Gas Manifold Pressure Measurement And Adjustment

    4. Measure furnace gas supply pressure with burners firing. ANIFOLD RESSURE EASUREMENT AND DJUSTMENT Supply pressure must be within the range specified in the Inlet Gas Supply Pressure table. CAUTION Inlet Gas Supply Pressure Natural Gas Minimum:5.0" W.C. Maximum :10.0" W.C. O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS Propane Gas Minimum:11.0"...

  • Page 29: Gas Input Rate Measurement (Natural Gas Only )

    7. Replace regulator screw cover and finger-tighten securely. 2. Place thermometers in the return and supply ducts as close to the furnace as possible. Thermometers must not be 8. Turn OFF all electrical power to the system. influenced by radiant heat by being able to “see” the heat 9.

  • Page 30: Normal Sequence Of Operation

    6. Verify proper temperature rise as outlined in Section XIV, • Furnace circulator blower and outdoor cooling unit run, Startup Procedure and Adjustment - Temperature Rise. integrated control module monitors safety circuits continuously. Circulator Blower Speeds • R and Y thermostat contacts open, completing the call for Medium Low Orange cool.

  • Page 31: Primary Limit

    Airflow blockage causes unit overheating and will produce LAME ENSOR the following reactions: The flame sensor is a probe mounted to the burner/manifold as- • The gas valve to close and extinguish flame, sembly which uses the principle of flame rectification to determine •...

  • Page 32: Maintenance

    XIX. MAINTENANCE XIX. MAINTENANCE XIX. MAINTENANCE XIX. MAINTENANCE XIX. MAINTENANCE To remove: 1. Turn OFF electrical power to furnace. WARNING 2. Remove filter(s) from the central return register or ductwork. 3. Replace filter(s) by reversing the procedure for removal. O AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DISCONNECT ELECTRICAL 4.

  • Page 33: Internal Filter Removal

    8. Clean the primary heat exchanger tubes using a wire brush 4. Angle filter toward the blower until filter clears bottom rail. attached to a length of high grade stainless steel cable, 5. Lower filter down and pull outward. such as drain cleanout cable. Attach a variable speed reversible drill to the other end of the cable.

  • Page 34: Troubleshooting Chart

    Troubleshooting Chart Associated Fault Description(s) Possible Causes LED Code • Furnace fails to operate. NONE • No 115 volt power to • Manual disconnect switch • Assure 115 and 24 volt • Turn power OFF furnace, or no 24 volt OFF, door switch open, or power to furnace prior to repair.
  • Page 35 Troubleshooting Chart Associated Symptoms of Abnormal Fault Description(s) Possible Causes Corrective Action Cautions and Notes Operation LED Code • Circulator blower runs • Primary or auxiliary • Check primary/ • Turn power OFF • Insufficient conditioned air continuously. No furnace limit circuit is open.

  • Page 36: Gms95 Wiring Diagram

    GMS95 WIRING DIAGRAM GMS95 WIRING DIAGRAM GMS95 WIRING DIAGRAM GMS95 WIRING DIAGRAM GMS95 WIRING DIAGRAM 40 VA TRANSFORMER INTEGRATED CONTROL MODULE C I R C U L A TO R B L O W E R 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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