Heat Controller 80+ AFUE Installation Instructions Manual
Heat Controller 80+ AFUE Installation Instructions Manual

Heat Controller 80+ AFUE Installation Instructions Manual

Single stage high efficiency gas furnaces
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Single Stage High Efficiency Gas Furnaces
INSTALLATION INSTRUCTIONS
GUH80A UpFLOw / HORIzONTAL FURNACE
wARNING
FIRE OR EXpLOSION HAzARD
• Failure to follow safety warnings exactly could
result in serious injury or property damage.
• Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
• Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
wHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
the fire department.
DO NOT DESTROY THIS MANUAL. KEEp IN A SAFE pLACE FOR FUTURE REFERENCE.
GDD80A DOwNFLOw FURNACE
AVERTISSEMENT
RISQUE D'INCENDIE OU D' EXPLOSION
• Le non-respect des avertissements de
sécurité pourrait entraîner des blessures
graves, la mort ou des dommages matériels.
• L'installation et l'entretien doivent être
effectués par un installateur qualifié, un
organisme de service ou le fournisseur de
gazstaller, service agency or the gas supplier.
• Ne pas entreposer ni utiliser de l'essence ni
d'autres vapeurs ou liquides inflammables
dans le voisinage de cet appareil, ni de tout
autre appareil.
QUE FAIRE S'IL Y A UNE ODEUR DE GAZ
• Ne pas tenter d'allumer aucun appareil.
• Ne toucher à aucun interrupteur électrique;
n'utiliser aucun téléphone dans le bâtiment.
• Évacuer l'immeuble immédiatement.
• Appeler immédiatement le fournisseur de
gaz en employant le téléphone d'un voisin.
Respecter à la lettre les instructions du
fournisseur de gaz.
• Si personne ne répond, appeler le service des
incendies.
80+ AFUE

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Summary of Contents for Heat Controller 80+ AFUE

  • Page 1 Single Stage High Efficiency Gas Furnaces 80+ AFUE INSTALLATION INSTRUCTIONS GUH80A UpFLOw / HORIzONTAL FURNACE GDD80A DOwNFLOw FURNACE wARNING AVERTISSEMENT RISQUE D’INCENDIE OU D’ EXPLOSION FIRE OR EXpLOSION HAzARD • Le non-respect des avertissements de • Failure to follow safety warnings exactly could sécurité...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMpORTANT SAFETY INFORMATION ...... 3 ELECTRICAL wIRING ..........19 Line Voltage Wiring ..........19 REQUIREMENTS & CODES ........3 Grounding ............. 20 Combustion Air Quality ........... 4 Thermostat / Low Voltage Connections ....21 Clearances to Combustible Materials ..... 4 Heat Anticipator ..........
  • Page 3: Important Safety Information

    IMpORTANT SAFETY INFORMATION • To minimize equipment failure or personal injury, it is essential that only qualified individuals install, service, or INSTALLER: Please read all instructions before servicing maintain this equipment. If you do not posses mechanical this equipment. Pay attention to all safety warnings and skills or tools, call your local dealer for assistance.
  • Page 4: Combustion Air Quality

    • A gas-fired furnace for installation in a residential garage • If the furnace is installed in a confined space, it is must be installed as specified on page 5. required that the necessary combustion air come from • This furnace is not approved for installation in mobile the outdoors by way of attic, crawl space, air duct, or homes.
  • Page 5: Installation In A Garage

    Operation of Furnace During Construction CLEARANCES TO COMBUSTIBLE MATERIALS CAUTION: UPFLOW & DOWNFLOW APPLICATIONS Failure to follow these instructions will void the BACK factory warranty and may significantly reduce HORIZONTAL APPLICATIONS the life or the performance of the furnace, and/ or result in other unsafe conditions.
  • Page 6: Combustion Air & Venting Requirements

    COMBUSTION AIR & VENTING REQUIREMENTS wARNING: AVERTISSEMENT: RISQUE D’EMPOISONNEMENT AU CARBON MONOXIDE pOISONING HAzARD MONOXYDE DE CARBONED Failure to follow the steps outlined below for each appliance connected to the venting Le non-respect des consignes suivantes portant system being placed into operation could sur chacun des appareils raccordés au système result in carbon monoxide poisoning or death.
  • Page 7: Important Information

    Important Information Air From Inside • Provisions must be made during the installation If combustion air is taken from the heated space, the two of this furnace that provide an adequate supply openings must each have a free area of at least 1 in of air for combustion.
  • Page 8: Air Directly Through An Exterior Wall

    Ventilation louvers at each end of attic Vent or Chimney Vent or Chimney Outlet air duct must be Attic Insulation at least 1 sq. in. per 12" Max 4,000 Btuh of total input rating. Must - - - NOTE: Each - - - - - - - - -...
  • Page 9: Alternate Method Of Providing Air From Outside

    Category I Venting Alternate Method of Providing Air from Outside: If acceptable under local Codes, it is permitted to provide This furnace is listed as a Category I vented appliance. outside air using one opening (See NFGC). Generally, Category I furnaces generally operate with a slight confined spaces must have 2 openings in the space for negative pressure (draft) and must be vented vertically or combustion air.
  • Page 10: Horizontal Venting

    Horizontal Venting codes. The minimum diameter of any vent pipe is 4 inches. • Horizontal vent systems must be sealed with a high • The venting system should be designed to have the temperature sealant that can withstand temperatures of minimum number of elbows or turns.
  • Page 11: Circulating Air Requirements

    CIRCULATING AIR REQUIREMENTS and outdoor air is used, the ducts and damper system wARNING: must be designed so that the return air supply to the furnace is equal to the return air supply under normal, Do not allow combustion products to enter the indoor return air applications.
  • Page 12: Downflow Furnaces

    Using sharp metal cutters, cut an opening between all FURNACE INSTALLATION 4 knockouts to expose the blower assembly. Position These Installation procedures are suggested for typical the return air duct over the opening and secure to the furnace installations. Since each installation is different, side with sheet metal screws.
  • Page 13: Locating The Furnace

    Locating the Furnace Horizontal Furnaces • The dimensions of the room or alcove must be able to wARNING: accommodate the overall size of the furnace and required clearances to combustible materials listed in Figure 1 The furnace must not be installed directly on (page 5).
  • Page 14: Downflow Furnaces

    Downflow Installation The furnace must not be installed directly on carpeting, tile, or any combustible material other than wood flooring. To install the furnace on combustible flooring, a special sub-base is required. wARNING: Nuts (x2) Failure to install the downflow sub-base kit may result in fire,property damage or personal injury.
  • Page 15: Pressure Switches

    Pressure Switch Tubing Figure 10 displays the proper routing of pressure switch tubing for GUH80A & GDD80A furnaces. On both furnaces, the tubing connects at one end of the pressure switch and is routed directly onto the static tap of the inducer assembly. Figure 10.
  • Page 16: Gas Supply & Piping

    GAS SUppLY & pIpING • All gas piping must be installed in compliance with wARNING: local codes and utility regulations. In the absence of local codes the gas line installation must comply FIRE OR EXpLOSION HAzARD with the latest edition of the National Fuel Gas Code •...
  • Page 17: High-Altitude Application

    For example, at 2,000 feet the input needs to be reduced AVERTISSEMENT: 8%, at 3,000 feet (12%), etc. This deration is in reference to the input rate and gas heating value at sea level. RISQUE D’INDENDIE OU D’EXPLOSION To derate the furnace requires knowing the heating value of the gas at the installation site.
  • Page 18 UPFLOW MODELS STATUS STATUS Note Note FLAME FLAME BLOWER BLOWER DELAY DELAY Left Side Entry Right Side Entry DOWNFLOW MODELS STATUS STATUS FLAME FLAME BLOWER BLOWER DELAY DELAY Note Note Left Side Entry Right Side Entry COMpONENTS: (1) Automatic Gas Valve (2) Burner Assembly (3) Dripleg (4) Elbow...
  • Page 19: Conversion To Lp / Propane

    Conversion to LP / Propane ELECTRICAL wIRING wARNING: wARNING: The furnace was shipped from the factory ELECTRICAL SHOCK,FIRE OR EXPLOSION equipped to operate on natural gas.Conversion HAzARD to LP / Propane gas must be performed by Failure to follow safety warnings exactly could qualified service personnel using a factory result in serious injury or property damage.
  • Page 20: Grounding

    IMpORTANT NOTES: F (40° C). For electrical specifications, refer to the • An electrical disconnect must be installed readily furnace nameplate or Table 2. accessible from and located within sight of the Grounding furnace. See Figure 14 or the wiring diagram label inside of the control door.Any other wiring methods wARNING: must be acceptable to authority having jurisdiction.
  • Page 21: Thermostat / Low Voltage Connections

    Thermostat / Low Voltage Connections Twinning • The furnace is designed to be controlled by a 24 VAC Single stage furnaces are not supplied with a built- in twinning capability. Other valuable features and thermostat. The thermostat’s wiring must comply with enhancements were made to the new control that made it the current provisions of the NEC (ANSI/NFPA 70) and necessary to remove the twinning capability.
  • Page 22: Start-Up & Adjustments

    Verifying & Adjusting Input Rate NOTE: One furnace can be used for one stage of heating and the other furnace can be used for the second stage of The input rate must be verified for each installation to heating. The installer also has the choice of running one prevent over-firing of the furnace.
  • Page 23: Verifying & Adjusting Temperature Rise

    combustion blowers should continue to run when the Capscrew limit switch opens. 1. Verify the blower door is securely mounted in place and that there is power to the furnace. 2. Block the return airflow to the furnace by installing a close-off plate in place of or upstream of the filter(s).
  • Page 24: Fan Mode

    Fan Mode • These maintenance instructions are primarily intended to assist qualified technicians experienced in the proper • When the thermostat energizes the G terminal for maintenance and operation of this appliance. continuous fan (without calling for heat or cooling), the •...
  • Page 25 13. GUH80A models - Carefully remove the inducer CAUTION: assembly from the furnace. GDD80A models - Carefully remove the inducer To prevent damage to the unit or internal assembly and combustion tube assembly from the components, it is recommended that two furnace.
  • Page 26: Figure 18 - Furnace Dimensions

    FIGURES & TABLES GUH80A 80+ Upflow Furnace TOP VIEW BOTTOM VIEW Dim. Dim. Dim. Dim. Model #’s Front Brace 045A3XE 14 1/4 10 3/4 12 5/8 12 7/8 054A3XE Bottom 072B4XE Panel 17 1/2 11 3/4 15 7/8 16 1/8 072C5XE 090B4XE 090C5XE...
  • Page 27: Airflow Data

    AIRFLOw DATA GUH80A - UPFLOW / HORIZONTAL FURNACES - 80+ AFUE External Static Pressure (Inches Water Column) Model Number & Motor Heating Input Speed (Btuh) Rise Rise Rise Rise Rise Rise Rise Rise High* 1,260 1,205 1,145 1,080 1,025 045A3XE...
  • Page 28 GUH80A - UPFLOW / HORIZONTAL FURNACES - 80+ AFUE External Static Pressure (Inches Water Column) Model Number & Motor Heating Input Speed (Btuh) Rise Rise Rise Rise Rise Rise Rise Rise High* 1,940 1,860 1,790 1,710 1,625 1,540 1,450 1,355...
  • Page 29 GDD80A - DOWNFLOW FURNACES - 80+ AFUE External Static Pressure (Inches Water Column) Model Number & Motor Heating Input Speed (Btuh) Rise Rise Rise Rise Rise Rise Rise Rise High* 1,375 1,340 1,300 1,270 1,225 1,175 1,115 1,035 Med-High 1,155...
  • Page 30: Electrical Information

    ELECTRICAL INFORMATION HIGH XFMR R C Y G W Figure 19. Wiring Diagram for Upflow & Downflow Furnaces...
  • Page 31: Gas Information

    GAS INFORMATION GAS FLOw RATES GAS FLOw RATES CUBIC FEET pER CUBIC FEET pER TIME FOR TIME FOR REVOLUTION OF GAS METER REVOLUTION OF GAS METER ONE REVOLUTION ONE REVOLUTION (SECONDS) (SECONDS) 1,800 3,600 1,500 3,000 1,286 2,571 1,125 2,250 1,000 2,000 1,800...
  • Page 32: Table 7 - High Altitude Deration Chart For Propane Gas

    pROpANE DERATION CHART INPUT (BTU) ALTITUDE ABOVE SEA LEVEL 45,000 54,000 72,000 90,000 108,000 126,000 ORIFICE SIZE 0 to 1,999 FT 10.0 10.0 10.0 10.0 10.0 10.0 MANIFOLD PRESSURE ORIFICE SIZE 2,000 to 2,999 FT MANIFOLD PRESSURE ORIFICE SIZE 3,000 to 4,999 FT MANIFOLD PRESSURE ORIFICE SIZE 5,000 to 5,999 FT...
  • Page 33 NATURAL GAS w/ HIGH HEATING VALUE INPUT (BTU) ALTITUDE ABOVE SEA LEVEL 45,000 54,000 72,000 90,000 108,000 126,000 ORIFICE SIZE 0 to 1,999 FT MANIFOLD PRESSURE ORIFICE SIZE 2,000 to 2,999 FT MANIFOLD PRESSURE ORIFICE SIZE 3,000 to 3,999 FT MANIFOLD PRESSURE ORIFICE SIZE 4,000 to 4,999 FT...
  • Page 34: Troubleshooting

    TROUBLESHOOTING • If the furnace operates when the blower limit switch is reset, contact a qualified service technician to identify If the furnace fails to operate check the following: and repair the problem. • Is the thermostat operating properly? • If the furnace still doesn’t operate, check the flame •...
  • Page 35: Figure 20 - Component Locations

    Main Air Limit Switch Inducer Control Board Assembly Gas Valve Transformer Pressure Switch Flame Sensor Igniter Gas Manifold Blower Door Switch Burner Assembly Roll-Out Switch Blower Assembly Upflow / Horizontal Furnace Blower Assembly (behind blower panel) Control Board Blower Door Switch Transformer (behind blower panel) Pressure Switch...
  • Page 36: Installation / Performance Checklist

    INSTALLATION / pERFORMANCE CHECK LIST ELECTRICAL SYSTEM ATTENTION INSTALLERS: It is your responsibility to know this product better than your customer. Electrical connections tight? This includes being able to install the product according to strict Line voltage polarity correct? safety guidelines and instructing the customer on how to operate and maintain the equipment for the life of the product.

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