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INSTALLATION & OPERATING
CONDENSING GAS FURNACE
(CATEGORY IV)
(U.S. PAT. # 5,437,263)
IF THIS FURNACE IS INSTALLED IN AN ENCLOSED AREA, SUCH AS A GARAGE OR
UTILITY ROOM, EITHER ALONE OR WITH ANY OTHER CARBON MONOXIDE PRODUCING
DEVICE (i.e. ATUOMOBLIE, SPACE HEATER, WATER HEATER, ETC.) INSURE THAT THE
ENCLOSED AREA IS PROPERLY VENTILATED.
CARBON MONOXIDE (REFERRED TO AS CO) CAN CAUSE SERIOUS PERSONAL INJURY
OR DEATH.
THIS FURNACE IS DESIGN CERTIFIED FOR INSTALLATION IN BUILDINGS CONSTRUCTED
ON SITE ONLY.
IO-151D
INSTRUCTIONS
for GMPN
WARNING
WARNING
WARNING
Goodman Manufacturing Company, L.P.
1501 Seamist, Houston, Texas 77008
REPLACEMENT PARTS
12/01
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Summary of Contents for Goodman GMPN
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Page 1: Replacement Parts
INSTALLATION & OPERATING INSTRUCTIONS for GMPN CONDENSING GAS FURNACE (CATEGORY IV) (U.S. PAT. # 5,437,263) WARNING IF THIS FURNACE IS INSTALLED IN AN ENCLOSED AREA, SUCH AS A GARAGE OR UTILITY ROOM, EITHER ALONE OR WITH ANY OTHER CARBON MONOXIDE PRODUCING DEVICE (i.e. - Page 2 Replacement parts for this appliance are available through your contractor or local distributor. For the location of your nearest distributor consult the white business pages, the yellow page section of the local telephone book or contact; SERVICE PARTS DEPARTMENT GOODMAN MANUFACTURING CO., L.P. 1501 SEAMIST HOUSTON, TEXAS 77008 (713) 861 - 2500...
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Page 3: Table Of Contents
INDEX WARNINGS & GENERAL INFORMATION 4, 5 LOCATION, CLEARANCES 5, 6 VENTING 6 - 9 GAS PIPING TABLE 9 - 11 CIRCULATING & RETURN AIR 11, 12 ELECTRICAL SUPPLY 12, 13 CONTROL VOLTAGE RATING THE FURNACE 14, 15 TIMING THE GAS METER 15, 16 SAFETY CONTROLS 16, 17... - Page 4 WHILE CARBON MONOXIDE DETECTORS DO PROVIDE ADDITIONAL PROTECTION, CURRENT LIMITATIONS TO THEIR EFFECTIVENESS REQUIRES THAT YOU OTHERWISE CONTINUE TO FOLLOW APPROPRIATE INSTRUCTIONS LOCATED IN THE “INSTALLATION & OPERATING INSTRUCTIONS” AND “USERS INFORMATION” MANUALS RELATING TO PROTECTING PERSONS FROM THE RISKS OF CARBON MONOXIDE. REVIEW EACH CO DETECTORS MANUFACTURERS’...
- Page 5 National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 The GMPN series of furnaces meet the California NOx emmission standards and California seasonal efficiency standards. LOCATION DO NOT install this furnace in a mobile home. This furnace is designed only for installation in buildings constructed on site and connected to ductwork.
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Page 6: Venting
A gas furnace must not be installed directly on carpeting, tile, or other combustible materials other than wood flooring. WARNING COMBUSTIBLE MATERIAL MUST NOT BE PLACED ON OR AGAINST THE FURNACE CABINET. THE AREA AROUND THE FURNACE MUST BE KEPT CLEAR AND FREE OF ALL COMBUSTIBLE MATERIAL INCLUDING GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS. - Page 7 A pitch of 1/4” per foot toward the drain assembly is necessary for proper drainage. The GMPN series of gas furnace is a condensing type appliance. The products of combustion are recirculated through a secondary coil. During this process the flue products are brought to a temperature below dew point.
- Page 8 DO NOT install the vent pipe in the same chase with the vent from another fuel burning appliance, except with a GMN, GMPN, GSUS, or GSU furnace manufactured by GOODMAN. DO NOT install the vent pipe within six (6) inches of another fuel burning appliance.
- Page 9 drain to the terminal. This will allow the condensate to flow backwards into the drain system and not out the terminal. When penetrating the structure to the outdoors install a sleeve to allow for expansion and contraction. Vertical runs must be supported a minimum of every six (6) feet. DO NOT rigidly support the vent pipe, always allow for expansion and contraction.
- Page 10 Both the supply and manifold pressure must be measured with the furnace running using the field supplied pressure tap near the manual shut-off valve and the pressure adjusted if necessary. All gas piping must conform to local codes, or in the absence of local codes, to the National Fuel Gas Code ANSI Z223.1 and / or CAN/CGA B149 Installation Codes.
- Page 11 The circulating air supply may be taken from; 1) Outside the building, 2) return ducts from several rooms, 3) central return, 4) any combination of the above. When a cooling coil is not installed it is recommended that the supply duct have an access panel so the heat exchanger can be viewed.
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Page 12: Electrical Supply
FURNACE AND RETURN DUCTWORK. THE FLOOR OR PLATFORM MUST PROVIDE SOUND PHYSICAL SUPPORT FOR THE FURNACE WITHOUT CRACKING, GAPS, SAGGING ETC. AROUND THE BASE AS TO PROVIDE A SEAL BETWEEN THE SUPPORT AND THE BASE. FAILURE TO PREVENT PRODUCTS OF COMBUSTION FROM ENTERING THE RETURN AIR SUPPLY MAY CAUSE SEVERE ILLNESS OR DEATH FROM CARBON MONOXIDE POISONING. -
Page 13: Rating The Furnace
Interconnecting wiring must be secured and protected from damage or disconnection. The use of solderless connectors or equivalent is recommended. The low voltage control wiring exiting the furnace is labeled “thermostat wiring”. SETTING THE HEAT ANTICIPATOR The following method should be used in measuring the amp draw of the control circuit to assure proper adjustment of the thermostat heat anticipator PURPLE PURPLE... -
Page 14: Timing The Gas Meter
6,000 7,000 The input to the furnace must be checked AFTER reorificing. For altitudes above 7,000 feet refer to appropriate section of the National Fuel Gas Code, ANSI Z223.1. To calculate the input of the furnace for installations in altitudes over 2,000 feet, use the following formula;... - Page 15 • If necessary, adjust the manifold pressure at the gas valve by removing the regulator cap and turning the adjustment screw clockwise to raise the pressure and counterclockwise to reduce the pressure. The manifold pressure must be between 3.2” W.C. and 3.8” W.C. for natural gas and 9.5”W.C.
- Page 16 MAIN LIMIT SWITCH The main limit switch is a 1/2” disc designed to shut off the burner gas should the outlet (bonnet) temperature exceed the maximum design outlet air temperature. This switch is not adjustable. To check the operation, block the return air flow through the unit temporarily. The limit switch should function and shut the burner gas off within a few minutes.
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Page 17: Circulating Air Filters
INTEGRATED FAN / IGNITION CONTROL This furnace is equipped with a combination ignition module and fan control. An electronic device ignites the burners upon a call for heat. It also controls the venter blower and the various speed selections of the circulating air blower. This control is located in the circulating air blower compartment. - Page 18 • Measure the outlet air temperature at a point approximately twelve to eighteen (12 -18) inches from the supply air duct opening of the furnace. It may be necessary to measure the outlet air at several places to obtain an accurate average. NOTE: IF AN AIR CONDITIONING COIL IS INSTALLED TAKE CARE SO AS NOT TO DAMAGE THAT COIL.
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Page 19: Removing An Existing Appliance
B149 Installation Codes as well as these installation instructions. If the installation of this GMPN furnace requires that an existing appliance be removed from a venting system which still serves another gas fired appliance this may require that the existing vent be re-sized. -
Page 20: Inspecting And Cleaning The Heat Exchanger
building. Turn on clothes dryers and any other appliance not connected to the venting system. Turn on any exhaust fans such as range hoods and bathroom exhausts, so they shall operate at their maximum speed. DO NOT operate a summer exhaust fan (whole house fan). Close fireplace dampers;... - Page 21 • Reassemble the furnace in the reverse order. Note: No additional screws or wires are supplied with this product. All components must be reassembled to avoid an unsafe condition. • Reconnect gas supply and check for leaks using a soap solution. If a flexible gas line is used examine it for cracks or weakness.
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Page 22: Humidifier Control
ELECTRONIC AIR CLEANER CONTROL The red-capped terminal on the ignition control marked “EAC” is to supply 115 VAC to an Electronic Air Cleaner. This terminal is powered in both the heating and air conditioning modes when the circulating blower is operating. HUMIDIFIER CONTROL The screw terminal on the ignition control called “HUM”... - Page 23 DOWNFLOW RIGHT SIDE UPFLOW RIGHT SIDE HORIZONTAL LEFT HORIZONTAL RIGHT IO-151...
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Page 24: Lighting Instructions
LIGHTING INSTRUCTIONS These instructions are also on the furnace FOR YOUR SAFETY READ BEFORE OPERATING WARNING: Improper installation, adjustm- If you do not follow these instructions exactly, ent, alteration, service a fire or explosion may result causing property or maintenance can damage, personal injury or loss of life. - Page 25 IO-151...