Amana GUSA User's Information Manual

Two-stage gas fired warm air furnace

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10318825 August 2001 (4)
GUSA
Two-Stage Gas Fired Warm Air Furnace
User’s Information Manual
If the information in these instructions is not followed exactly, a fire or
explosion may result causing property damage, personal injury or loss of
life.
– 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.
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.
– Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
You have purchased a high-efficiency, gas-fired, warm-air residential furnace. It is
designed to heat your home efficiently and safely. It is also designed to interface
with your cooling equipment to circulate conditioned air during cooling operation.
Your furnace functions are regulated by an integrated control module which
responds to your home thermostat. This module controls all aspects of operation,
and is designed to assure efficiency, reliability, comfort, and safety. The GUSA
furnace has been designed with efficiency and flexibility in mind. It is capable of
operating on low stage or high stage, in accordance with current heating require-
ments.
The GUSA furnace can be installed in an upright or horizontal position. It can use
either indoor or outdoor air for combustion purposes. Use of indoor air, referred to
as non-direct vent (single pipe), requires only a flue pipe; combustion air is drawn
from indoors. Use of outdoor air, referred to as direct vent (dual pipe), requires
both a flue pipe and a combustion air intake pipe.
WARNING
Heating
& RP IRUW 4 XDOLW\ 7UXVW
&
Air Conditioning
®

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Summary of Contents for Amana GUSA

  • Page 1 The GUSA furnace can be installed in an upright or horizontal position. It can use either indoor or outdoor air for combustion purposes. Use of indoor air, referred to as non-direct vent (single pipe), requires only a flue pipe;...
  • Page 2: Table Of Contents

    Contents Important Note To The Owner ................3 Component Identification ............... 4 General Information ................5 Unit Location ....................5 Unit Installation ....................5 Clearances and Accessibility ................6 Air Requirements ....................6 Combustion Air (Non-Direct Vent/Single Pipe) ..........6 Combustion Air (Direct Vent/Dual Pipes) ............
  • Page 3: Important Note To The Owner

    Important Note To The Owner It is important that you fill out the owner’s registration card and mail it today. This will assist Amana in contacting you should any service or warranty information change in the future. When filling in the registration card, be sure to include the Model, Manufacturing and Serial Numbers, plus the installation date.
  • Page 4: Component Identification

    Component Identification Upflow/Horizontal Two-Stage Gas Valve Coil Front Cover Pressure Tap Gas Line Entrance (Alternate) Coil Front Cover Drain Tap Pressure Switch(es) Drain Line Penetrations Gas Manifold Drain Trap Combustion Air Intake Connection Blower Door Interlock Switch Hot Surface Igniter Capacitor Rollout Limit Two-Stage Integrated Control Module...
  • Page 5: General Information

    General Information This furnace is built to provide many years of safe and dependable service, provided it is properly installed and maintained. However, abuse and/or improper use can shorten the life of the furnace and create hazards for you, the homeowner.
  • Page 6: Clearances And Accessibility

    General Information WARNING Clearances and Accessibility Installations must adhere to the clearances to combus- Death or personal injury from asphyxiation can result tible materials for which this furnace has been design cer- from exposure to carbon monoxide. tified. The minimum clearance information for this furnace is provided on the unit’s clearance label.
  • Page 7: Combustion Air (Direct Vent/Dual Pipes)

    Glass Glass +30°F +20°F To prevent possible death or personal injury due to +10°F asphyxiation, Amana Condensing Gas Fired Warm 0°F Air Furnaces must be Category IV vented. -10°F -20°F The venting of this furnace (Category IV venting) must -30°F be both gas and water tight.
  • Page 8: For Propane (Lp) Gas Installations Only

    General Information For Propane (LP) Gas Installations Only For furnaces operating on propane gas, please review the following warnings before use. WARNING To avoid death, personal injury or property damage due to explosion or fire, install a gas detecting warning device. Since the odorant in propane gas can be reduced by iron oxide (rust), a gas detecting warning device is the only reliable method to detect propane gas leaks.
  • Page 9: Operating Your Furnace

    Operating Your Furnace Furnace Operation Room Temperature System In the heating mode, gas is burned and the products of Cool/Heat Action Thermostat Switch Switch Temperature Control Dials combustion are drawn through a heat exchanger by an AUTO None System only cools, fan COOL AUTO induced draft blower.
  • Page 10: Blowers

    Operating Your Furnace Blowers 11. Turn on the electrical power to the furnace. An induced draft blower is utilized to draw flue products 12. Adjust the thermostat to a setting above room tem- through the heat exchanger and exhaust them outdoors. perature.
  • Page 11: Safety Circuits

    Safety Circuits A number of safety circuits are employed to ensure safe and proper furnace operation. These circuits serve to control any potential safety hazards and, as inputs in the monitoring and diagnosis of abnormal function. These circuits are continuously monitored by the integrated control module. Integrated Control Module The integrated control module is an electronic device which regulates all furnace operations.
  • Page 12: Routine Maintenance

    Routine Maintenance If you perform maintenance on the furnace yourself, remember that certain mechanical and electrical knowledge, skills and tools are required to perform maintenance on the furnace. Personal injury or death my result. If you are not properly trained. You should call your installing dealer or place of purchase if you are uncertain about your ability to perform maintenance.
  • Page 13: Filter Cleaning And/Or Replacement

    Routine Maintenance To remove internal filter(s) from the retaining rails on the If using Media Air Cleaner MAC1 or Electronic Air side(s) of the blower compartment in an upright upflow Cleaner EAC5, follow the directions provided with the air installation: cleaner for proper filter removal, cleaning, and replace- 1.
  • Page 14: Troubleshooting / Before You Request A Service Call

    Troubleshooting / Before You Request a Service Call If your furnace is not operating or is performing improperly, take time to perform the following checks before request- ing service. A couple of simple checks may allow you to avoid a service call. If the following steps do not resolve the problem, contact a qualified servicer for further troubleshooting and/or repairs.
  • Page 15 Troubleshooting / Before You Request a Service Call Associated Symptoms of Abnormal Probable Cause(s) Corrective Action LED Code Operation (See Notes 1 & 2) - Furnace fails to operate. - Confirm that the external electrical disconnect switch is in the "ON" position. If "OFF", switch to the "ON"...
  • Page 16: Safety Labels

    Safety Labels NOTE: If safety labels are missing or illegible, contact the installing dealer or Amana Customer Service Department for ordering information. THIS COMPARTMENT MUST BE CE COMPARTIMENT DOIT RESTER AVERTISSEMENT: WARNING: CLOSED EXCEPT WHEN FERME, SAUF POUR L'ENTRETIEN SERVICING...
  • Page 17: For Additional Information

    For Additional Information Most questions can be answered by the local Amana dealer. Check with dealer first if needing any further information regarding the operation, maintenance, or service of the furnace. If you have any matters that are not resolved locally, or for more information on other heating and cooling products or...

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