Whirlpool WGFM29, WGFD29, Gold WGFD295, Gold WGFM295 Installation Instructions Manual

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93% AND 95% 2-STAGE VARIABLE-SPEED GAS FURNACE

INSTALLATION INSTRUCTIONS

ATTENTION INSTALLATION 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 operations.

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.

Placeholder

for Bar

Code

Whirlpool Gold® Models WGFD295,WGFM295

WPIO-368B

These furnaces comply with requirements embodied in the American National Standard/National Standard of Canada ANSI Z21.47-CSA-2.3 Gas Fired Central Furnaces.

Tradewinds Distributing Company, LLC

14610 Breakers Drive

Jacksonville, Florida 32258

TABLE OF CONTENTS

GAS FURNACE SAFETY PRECAUTIONS....................................3

PRODUCT DESCRIPTION AND APPLICATION ..........................4

Shipping Inspection .....................................................................4

Electrostatic Discharge (ESD)......................................................4

To The Installer.............................................................................4

Important Note to the Owner Regarding Product Warranty .......4

Product Application......................................................................5

LOCATION REQUIREMENTS AND CONSIDERATIONS ............5

Clearances and Accessibility.......................................................6

Furnace Suspension ....................................................................7

Existing Furnace Removal ...........................................................7

Thermostat Location ....................................................................7

Combustion and Ventilation Air Requirements ...........................8

HORIZONTAL APPLICATIONS AND CONSIDERATIONS.......... 8

Drain Trap and Lines....................................................................8

Leveling ........................................................................................8

Alternate Vent/Flue Connections .................................................8

Alternate Electrical and Gas Line Connections ...........................9

Drain Pan......................................................................................9

Freeze Protection .........................................................................9

Furnace Suspension ....................................................................9

PROPANE GAS/HIGH ALTITUDE INSTALLATIONS...................9

VENT/FLUE PIPE AND COMBUSTION AIR PIPE......................10

Dual Certification: Nondirect/Direct Vent...................................10

Materials and Joining Methods..................................................10

Proper Vent/Flue and Combustion Air Piping Practices ...........10

Termination Locations................................................................11

Canadian Venting Requirements ...............................................11

Standard Furnace Connections.................................................11

Vent/Flue Pipe............................................................................12

Combustion Air Pipe—Direct Vent Installations........................12

Combustion Air Pipe—Nondirect Vent Installations..................12

Alternate Furnace Connections .................................................12

Alternate Vent/Flue Location......................................................13

Alternate Combustion Air Intake Location.................................14

Nondirect Vent (Single Pipe) Piping...........................................14

Nondirect Vent Applications ......................................................15

Vent/Flue Pipe Terminations......................................................15

Direct Vent (Dual Pipe) Piping....................................................16

Vent/Flue and Combustion Air Pipe Lengths and Diameters....16

Vent/Intake Terminations for Installation

of Multiple Direct Vent Furnaces................................................19

Concentric Vent Termination .....................................................19

Side Wall Vent Kit.......................................................................19

CONDENSATE DRAIN LINES AND DRAIN TRAP.....................19

Standard Right or Left Side Drain Hose Connections...............20

Upright Installations—Trap on Right Side .................................20

Upright Installations—Trap on Left Side....................................21

Upright Drain Trap Mounting—Left or Right Side Panel...........21

Horizontal Installations—Right Side Down................................21

Horizontal Installations—Left Side Down ..................................22

Horizontal Drain Trap Mounting—Left or Right Side Panel.......23

ELECTRICAL CONNECTIONS....................................................23

Wiring Harness...........................................................................23

115-Volt Line Connections.........................................................23

Junction Box Relocation............................................................23

24-Volt Thermostat Wiring .........................................................24

24-Volt Dehumidistat Wiring ......................................................25

Fossil Fuel Applications .............................................................25

115-Volt Line Connection of Accessories (Humidifier and

Electronic Air Cleaner)................................................................25

GAS SUPPLY AND PIPING..........................................................26

High Altitude Derate ...................................................................26

Propane Gas Conversion...........................................................26

Gas Control Valve.......................................................................27

Gas Piping Connections ............................................................27

Gas Piping Checks.....................................................................29

Propane Gas Tanks and Piping .................................................29

CIRCULATING AIR AND FILTERS..............................................31

Ductwork—Airflow .....................................................................31

Bottom Return Air Opening—Upflow Models ...........................31

Filters—Read This Section Before Installing

the Return Air Ductwork.............................................................31

START-UP PROCEDURE AND ADJUSTMENT.........................33

Heat Anticipator Setting.............................................................33

Drain Trap Priming......................................................................33

Furnace Operation......................................................................33

Furnace Start-Up........................................................................33

Furnace Shutdown.....................................................................33

Gas Supply Pressure Measurement..........................................33

Gas Manifold Pressure Measurement and Adjustment.............34

Gas Input Rate Measurement—Natural Gas Only.....................35

Temperature Rise.......................................................................35

Circulator Blower Speeds ..........................................................36

Blower Heat Off Delay Timings ..................................................38

NORMAL SEQUENCE OF OPERATION.....................................38

Power Up....................................................................................38

Heating Mode.............................................................................38

Cooling Mode.............................................................................39

Fan Only Mode...........................................................................39

Operational Checks....................................................................39

SAFETY CIRCUIT DESCRIPTION...............................................39

General .......................................................................................39

Integrated Control Module .........................................................39

Primary Limit Control..................................................................39

Auxiliary Limit Controls...............................................................39

Rollout Limit Controls.................................................................39

Pressure Switches......................................................................40

Flame Sensor..............................................................................40

MAINTENANCE ............................................................................40

Annual Inspection.......................................................................40

Filters ..........................................................................................40

Burners .......................................................................................41

Induced Draft and Circulator Blowers........................................41

Condensate Trap and Drain System (Qualified Servicer Only)..41

Flame Sensor (Qualified Servicer Only)......................................41

Flue Passages (Qualified Servicer Only) ....................................41

Before Leaving an Installation....................................................41

Repair and Replacement Parts..................................................41

TROUBLESHOOTING ..................................................................42

Electrostatic Discharge (ESD) ....................................................42

Fault Recall.................................................................................42

Resetting from Lockout..............................................................42

Status Codes..............................................................................42

Diagnostic Chart.........................................................................43

DIP Switch Chart........................................................................49

WIRING DIAGRAM .......................................................................50

WIRING DIAGRAM .......................................................................51

ASSISTANCE OR SERVICE.........................................................52

GAS FURNACE SAFETY PRECAUTIONS

Please adhere to the following warnings and cautions when installing, adjusting, altering, servicing or operating the furnace. To en sure proper installation and operation, thoroughly read this manual for specifics pertaining to the installation and application of this product.

Recognize this symbol as a safety precaution.

WARNING

Hazards or unsafe practices could result in property damage, product damage, severe personal injury or death.

Goodman 1

CAUTION

Hazards or unsafe practices may result in property damage, product damage, personal injury or death.

WARNING

The manufacturer will not be responsible for any injury or property damage arising from improper service or service procedures. If you install or perform service on this unit, you assume responsibility for any personal injury or property damage which may result. Many jurisdictions require a license to install or service heating and air conditioning equipment.

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WARNING

To prevent personal injury or death due to improper installation, adjustment, alteration, refer to this manual. For additional assistance or information, consult a qualified installer, service agency or the gas supplier.

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service

maintenance,

WARNING

This product contains or produces a chemical or chemicals which may cause serious illness or death and which are known to the State of California to cause cancer, birth defects or other reproductive harm.

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WARNING

Heating unit should not be utilized without reasonable, routine inspection, maintenance and supervision. If the building in which any such device is located will be vacant, care should be taken that such device is routinely inspected, maintained and monitored. In the event that the building may be exposed to freezing temperatures and will be vacant, all water-bearing pipes should be drained, the building should be properly winterized and the water source closed. In the event that the building may be exposed to freezing temperatures and will be vacant, any hydronic coil units should be drained as well, and, in such case, alternative heat sources should be utilized.

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DANGER

WARNING

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.

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CARBON MONOXIDE POISONING HAZARD

Special Warning for Installation of Furnace or Air Handling Units in Enclosed Areas such as Garages, Utility Rooms or Parking Areas.

Carbon monoxide producing devices (such as an automobile, space heater, gas water heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility rooms or parking areas because of the danger of carbon monoxide (CO) poisoning resulting from the exhaust emissions. If a furnace or air handler is installed in an enclosed area such as a garage, utility room or parking area and a carbon monoxide producing device is operated therein, there must be adequate, direct outside ventilation. This ventilation is necessary to avoid the danger of CO poisoning which can occur if a carbon monoxide producing device continues to operate in the enclosed area. Carbon monoxide emissions can be (re)circulated throughout the structure if the furnace or air handler is operating in any mode.

CO can cause serious illness including permanent brain damage or death.

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WARNING

Should overheating occur or the gas supply fail to shut off, turn off the manual gas shutoff valve external to the furnace before turning off the electrical supply.

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WARNING

Possible property damage, personal injury or death due to fire, explosion, smoke, soot, condensation, electrical shock or carbon monoxide may result from improper installation, repair, operation or maintenance of this product.

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1. Disconnect all power to the furnace. NOTE: Do not touch the integrated control module or any

wire connected to the control prior to discharging your body’s electrostatic charge to ground.

2. Firmly touch a clean, unpainted, metal surface of the furnace away from the control. Any tools held in a person’s hand during grounding will be discharged also.

3. Service the integrated control module or connecting wiring after following the discharge process in Step 2.

NOTE: Do not recharge your body with static electricity by moving or shuffling your feet or touching ungrounded objects. If you touch an ungrounded object, repeat Step 2 before touching the control or wires.

4. Follow steps 1 through 3 before removing a new control from its container or installing the control on a furnace. Return any old or new controls to their containers before touching any ungrounded object.

PRODUCT DESCRIPTION

AND APPLICATION

Shipping Inspection

All units are securely packed in shipping containers tested according to International Safe Transit Association specifications. The carton must be checked upon arrival for external damage. If damage is found, a request for inspection by carrier’s agent must be made in writing immediately.

The furnace must be carefully inspected on arrival for damage and bolts or screws which may have come loose in transit. In the event of damage, the consignee should:

1. Make a notation on the delivery receipt of any visible damage

to the shipment or container.

2. Notify the carrier promptly and request an inspection.

3. With concealed damage, the carrier must be notified as soon

as possible—preferably within 5 days.

4. File the claim with the following support documents within a

9-month statute of limitations.

■ Original or certified copy of the Bill of Lading, or

indemnity bond.

■ Original paid freight bill or indemnity in lieu thereof.

■ Original or certified copy of the invoice, showing trade

and other discounts or reductions.

■ Copy of the inspection report issued by carrier’s

representative at the time damage is reported to carrier.

The carrier is responsible for making prompt inspection of the damage and for a thorough investigation of each claim. The distributor or manufacturer will not accept claims from dealers for transportation damage.

Electrostatic Discharge (ESD)

NOTE: Discharge static electricity accumulated in the body before touching the unit. An electrostatic discharge can adversely affect electrical components.

Use the following steps during furnace installations and servicing to protect the integrated control module from damage. By putting the furnace, the control and the person at the same electrostatic potential, these steps will help avoid exposing the integrated control module to electrostatic discharge. This procedure is applicable to both installed and noninstalled (ungrounded) furnaces.

To The Installer

Before installing this unit, please read this manual thoroughly to familiarize yourself with specific items which must be adhered to, including, but not limited to:

■ Unit maximum external static pressure

■ Gas pressures

■ Btu input rating

■ Proper electrical connections

■ Circulating air temperature rise

■ Minimum or maximum CFM

■ Motor speed connections

Important Note to the Owner Regarding

Product Warranty

Your warranty certificate is supplied as a separate document with the unit installed by your contractor. Read the limited warranty certificate carefully to determine what is and is not covered. Keep the warranty certificate in a safe place. If you are unable to locate the warranty certificate, please contact your installing contractor, or contact customer service at 1-866-944-7575 to obtain a copy.

To receive the Lifetime Heat Exchanger Limited Warranty, good for as long as you own your home, and the 10-Year Parts Limited Warranty, online registration must be completed within 60 days of installation. Online registration is not required in California or Quebec.

Product limited warranty certificates for models currently in production can be viewed at www.whirlpoolhvac.com. If your model is not currently in production or does not appear on the website, please contact your installing contractor or contact customer service at 1-866-944-7575 to obtain a copy of your warranty certificate.

To register your unit, go to www.whirlpoolhvac.com. Click on the manufacturer’s Comfort Commitment the bottom center of the home page. Next, click on the Click Here to Register Your Product link located at the top center of the page, and complete the forms in the manner indicated.

Warranty link located at

WARNING

To prevent property damage, personal injury or death due to fire, do not install the furnace in a mobile home, trailer or recreational vehicle.

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Product Application

This furnace is primarily designed for residential home-heating applications.

IMPORTANT:

■ This furnace is not designed or certified for use in mobile

homes, trailers or recreational vehicles.

■ This furnace is not designed or certified for outdoor

applications.

■ The furnace must be installed indoors (for example, attic

space, crawl space or garage area provided the garage area is enclosed with an operating door).

This furnace can be used in the following nonindustrial commercial applications:

■ Schools

■ Office buildings

■ Churches

■ Retail stores

NOTE: In such applications, the furnace must be installed with the following stipulations:

■ It must be installed according to the installation instructions

provided and according to local and national codes.

■ It must be installed indoors in a building constructed on site.

■ It must be part of a ducted system and not used in a free air

delivery application.

■ It must not be used as a “makeup” air unit.

■ It must be installed with 2-pipe systems for combustion air,

especially if VOC’s or other contaminants are present in the conditioned space.

■ All other warranty exclusions and restrictions apply.

This furnace is an ETL dual-certified appliance and is appropriate for use with Natural or propane gas

NOTE: If you are using propane, a propane conversion kit is required.

Dual certification means that the combustion air inlet pipe is optional, and the furnace can be vented as a:

■ Nondirect vent (single pipe) central forced air furnace in

which combustion air is taken from the installation area or from air ducted from the outside or a,

■ Direct vent (dual pipe) central forced air furnace in which all

combustion air supplied directly to the furnace burners through a special air intake system outlined in these instructions.

This furnace may be used as a construction site heater only if all of the following conditions are met:

■ The vent system is permanently installed according to these

installation instructions.

■ A room thermostat is used to control the furnace. Fixed

jumpers that provide continuous heating cannot be used and can cause long term equipment damage.

■ Return air ducts are provided and sealed to the furnace.

■ A return air temperature range between 60ºF and 80ºF (16ºC

and 27ºC) is maintained.

■ Air filters are installed in the system and maintained during

construction, replaced as appropriate during construction and upon completion of construction.

■ The input rate and temperature rise are set according to the

furnace rating plate.

■ Nursing homes

■ Hotels/motels

■ Common areas

■ Office areas

■ 100% outside air is provided for combustion air requirements

during construction. Temporary ducting can be used. NOTE: Do not connect the temporary duct directly to the

furnace. The duct must be sized for adequate combustion and ventilation in accordance with the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1 or CAN/CSA B149.1 Installation Codes.

■ The furnace heat exchanger, components, duct system, air

filters and evaporator coils are thoroughly cleaned following the final construction cleanup.

■ All furnace operating conditions (including ignition, input rate,

temperature rise and venting) are verified according to these installation instructions.

NOTE: The Commonwealth of Massachusetts requires that the following additional requirements must also be met:

■ Gas furnaces must be installed by a licensed plumber or gas

fitter.

■ A T-handle gas cock must be used.

■ If the unit is to be installed in an attic, the passageway to and

the service area around the unit must have flooring.

To ensure proper furnace operation, you must install, operate and maintain the furnace in accordance with these installation and operation instructions, all local building codes and ordinances. In their absence, follow the latest edition of the National Fuel Gas Code (NFPA 54/ANSI Z223.1), and/or CAN/CSA B149 Installation Codes, local plumbing or waste water codes and other applicable codes.

A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) can be obtained from any of the following:

American National Standards Institute 1430 Broadway New York, NY 10018

National Fire Protection Association 1 Batterymarch Park Quincy, MA 02269

CSA International 8501 East Pleasant Valley Cleveland, OH 44131

The rated heating capacity of the furnace should be greater than or equal to the total heat loss of the area to be heated. The total heat loss should be calculated by an approved method or in accordance with “ASHRAE Guide” or “Manual J-Load Calculations” published by the Air Conditioning Contractors of America.

A copy of the CAN/CSA B149 Installation Codes can also be obtained from:

CSA International 178 Rexdale Boulevard Etobicoke, Ontario, Canada M9W 1R3

LOCATION REQUIREMENTS AND

CONSIDERATIONS

Follow the instructions listed below when selecting a furnace location. Refer also to the guidelines provided in “Combustion and Ventilation Air Requirements.”

WARNING

To prevent possible equipment damage, property damage, personal injury or death, the following bullet points must be observed when installing the unit.

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WARNING

■ Centrally locate the furnace with respect to the proposed or

existing air distribution system.

■ Check that the temperature of the return air entering the

furnace is between 55°F and 100°F (18ºC and 38ºC) when the furnace is heating.

■ Provide provisions for venting combustion products outdoors

through a proper venting system. Special consideration should be given to the vent/flue pipe routing and the combustion air intake pipe when applicable. Refer to “Termination Locations” in “Vent/Flue Pipe and Combustion Air Pipe” for appropriate termination locations and to determine if the piping system from the furnace to the termination can be accomplished within the guidelines given.

NOTE: The length of flue and/or combustion air piping can be a limiting factor in the location of the furnace.

■ Locate the furnace so that the condensate flows downward

to the drain. NOTE: Do not locate the furnace or its condensate drainage

system in any area subject to below freezing temperatures without the proper freeze protection. Refer to “Condensate Drain Lines and Trap” for further details.

■ Check that adequate combustion air is available for the

furnace. Improper or insufficient combustion air can expose building occupants to gas combustion products that could include carbon monoxide. Refer to “Combustion and Ventilation Air Requirements.”

■ Set the furnace on a level floor to enable proper condensate

drainage. If the floor becomes wet or damp at times, place the furnace above the floor on a concrete base sized approximately 1¹⁄₂" (3.8 cm) larger than the base of the furnace. Refer to “Horizontal Applications and Considerations” for leveling of horizontal furnaces.

■ Check that the upflow or horizontal furnaces are not installed

directly on carpeting, or any other combustible material. NOTE: The only combustible material allowed is wood.

■ A special accessory subbase must be used for the upright

counterflow unit installations over any combustible material (including wood). Refer to subbase instructions for installation details.

NOTE: A subbase will not be required if an air conditioning coil is located beneath the furnace between the supply air opening and the combustible floor.

■ Exposure to contaminated combustion air will result in safety

and performance-related problems. NOTE: Do not install the furnace where the combustion air is

exposed to the following substances:

Chlorinated waxes or cleaners Chlorine-based swimming pool chemicals Water softening chemicals Deicing salts or chemicals Carbon tetrachloride Halogen-type refrigerants Cleaning solutions (such as perchloroethylene) Printing inks Paint removers Var nishes

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Hydrochloric acid Cements and glues Antistatic fabric softeners for clothes dryers Masonry acid washing materials

■ Seal off a nondirect vent furnace if it is installed near an area

frequently contaminated by any of the above substances. This protects the nondirect vent furnace from airborne contaminants. To ensure that the enclosed nondirect vent furnace has an adequate supply of combustion air, vent from a nearby uncontaminated room or from outdoors. Refer to “Combustion and Ventilation Air Requirements” for details.

■ If the furnace is used in connection with a cooling coil unit,

install the furnace upstream or in parallel with the cooling coil unit. Premature heat exchanger failure will result if the cooling coil unit is placed ahead of the furnace.

■ If the furnace is installed in an application where the typical

operating sound level of a furnace is deemed objectionable, an optional sound reduction kit is available. Consult your local distributor for more details.

■ If the furnace is installed in a residential garage, position the

furnace so that the burners and ignition source are located not less than 18" (45.7 cm) above the floor. Protect the furnace from physical damage by vehicles.

■ If the furnace is installed horizontally, ensure the furnace

access doors are not on the “up/top” or “down/bottom” side of the furnace.

■ Do not connect the furnace to a chimney flue that serves a

separate appliance designed to burn solid fuel.

■ On counterflow installations, the air conditioning coil must be

downstream on the supply (positive) side of the furnace heat exchanger.

Counterflow Installation Over a Noncombustible Floor

■ Before setting the furnace over the plenum opening, ensure

that the surface around the opening is smooth and level. A tight seal should be made between the furnace base and floor by using a silicone rubber caulking compound or cement grout.

Counterflow Installation Over a Combustible Floor

■ If installation over a combustible floor becomes necessary,

use an accessory subbase (see Specification Sheet applicable for your model for details). A special accessory subbase must be used for upright counterflow unit installations over any combustible material including wood. Refer to subbase instructions for installation details. Follow the instructions with the subbase for proper installation.

NOTES:

■ Do not install the furnace directly on carpeting, tile or

other combustible material other than wood flooring.

■ The subbase will not be required if an air conditioning coil

is installed between the supply air opening on the furnace and the floor.

Clearances and Accessibility

Installations must adhere to the clearances to combustible materials to which this furnace has been design-certified. The minimum clearance information for this furnace is provided on the unit’s clearance label. These clearances must be permanently maintained. Clearances must also accommodate an installation’s gas, electrical, drain trap and drain line connections. If the alternate combustion air intake or vent/flue connections are used, additional clearance must be provided to accommodate these connections. Refer to “Vent/Flue Pipe and Combustion Air Pipe” for details.

NOTE: In addition to the required clearances to combustible materials, a minimum of 24" (61 cm) service clearance must be available in front of the unit.

Upflow Counterflow Horizontal

A. Top B. Side

C. Bottom

A furnace installed in a confined space (for example, a closet or utility room) must have 2 ventilation openings with a total minimum free area of 0.25 sq. in. per 1,000 Btu/h of furnace input rating. Refer to the Specification Sheet applicable to your model for minimum clearances to combustible surfaces. One of the ventilation openings must be within 12" (30.5 cm) of the top. The other opening must be within 12" (30.5 cm) of the bottom of the confined space. In a typical construction, the clearance between the door and door frame is usually adequate to satisfy this ventilation requirement.

Furnace Suspension

If suspending the furnace from rafters or joists, use ³⁄₈" threaded rod and 2" x 2" x ¹⁄₈" (5.1 cm x 5.1 cm x 3.2 mm) angle iron as shown in “Suspended Furnace” illustration. The length of rod will depend on the application and the clearances necessary.

NOTE: In a horizontal installation, the air conditioning coil must be adequately supported by the proper brackets and supports. Inadequate coil support can result in furnace cabinet distortion and air leakage.

Suspended Furnace

The following vent testing procedure is reproduced from the American National Standard/National Standard of Canada for Gas-Fired Central Furnaces ANSI Z21.4, CSA-2.3 latest edition Section 1.23.1.

The following steps shall be followed with each appliance connected to the venting system placed in operation, while any other appliances connected to the venting system are not in operation:

1. Seal any unused openings in the venting system.

2. Inspect the venting system for proper size and horizontal

pitch, as required by the National Fuel Gas Code, ANSI Z223.1 or the Natural Gas and Propane Installation Code, CSA B149.1-05 and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

3. As far as practical, close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system are located and other spaces of the building.

4. Close fireplace dampers.

5. Turn on clothes dryers and any appliance not connected to

the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they shall operate at maximum speed. Do not operate a summer exhaust fan.

6. Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so appliance shall operate continuously.

7. Test for leaking from draft hood appliances at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle.

8. After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas burning appliance to their previous conditions of use.

9. If improper venting is observed during any of the above tests, the venting system must be corrected in accordance with the National Fuel Gas Code ANSI Z223.1/NFPA 54 and/or National Gas and Propane Installation Code CSA B149.1-05.

If resizing is required on any portion of the venting system, use the appropriate table in Appendix G in the latest edition of the National Fuel Gas Code ANSI Z223.1 and/or CSA B149.1-05 Installation Codes.

³⁄₈

" (1 cm) diameter threaded

rod (6)

B. 8" (20.3 cm) minimum clearance

between center rod and furnace cabinet to allow for circulator blower removal.

C. Level furnace end to end, slight

forward tilt with front 0" to (1.9 cm) below back.

D. Tilt outward to allow for door and

circulator blower removal.

E. Position as close as possible to

blower deck to allow for circulator blower removal.

F. 2" x 2" x

³⁄₄

3.2 mm) angle iron (3)

G. Support nuts H. Hold down nuts

Existing Furnace Removal

NOTE: When an existing furnace is removed from a venting system serving other appliances, the venting system may be too large to properly vent the remaining attached appliances.

¹⁄₈

" (5.1 cm x 5.1 cm x

Thermostat Location

The thermostat should be placed approximately 5 ft (1.5 m) from the floor on a vibration-free, inside wall in an area having good air circulation.

NOTE: Do not install the thermostat where it may be influenced by any of the following:

■ Drafts, or dead spots behind doors, in corners or under

cabinets

■ Hot or cold air from registers

■ Radiant heat from the sun

■ Light fixtures or other appliances

■ Radiant heat from a fireplace

■ Concealed hot or cold water pipes or chimneys

■ Unconditioned areas behind the thermostat, such as an

outside wall

Consult the instructions packaged with the thermostat for mounting instructions and further precautions.

Combustion and Ventilation Air Requirements

WARNING

To avoid property damage, personal injury or death, sufficient fresh air for proper combustion and ventilation of flue gases must be supplied. Most homes require outside air be supplied into the furnace area.

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When installing a furnace horizontally, additional consideration must be given to the following:

■ Drain trap and lines

■ Leveling the furnace

■ Alternate vent/flue and combustion air connections

■ Alternate electrical and gas line connections

■ Drain pan

■ Freeze protection

■ Furnace suspension.

Improved construction and additional insulation in buildings have reduced heat loss by reducing air infiltration and escape around doors and windows. These changes have helped in reducing heating/cooling costs but have created a problem supplying combustion and ventilation air for gas-fired and other fuel-burning appliances. Appliances that pull air out of the house (clothes dryers, exhaust fans, fireplaces, etc.) increase the problem by starving appliances for air.

House depressurization can cause back drafting or improper combustion of gas-fired appliances, thereby exposing building occupants to gas combustion products that could include carbon monoxide.

If this furnace is to be installed in the same space with other gas appliances, such as a water heater, ensure there is an adequate supply of combustion and ventilation air for the other appliances. Refer to the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1 or CAN/CSA B149 Installation Codes or applicable provisions of the local building codes for determining the combustion air requirements for the appliances.

Most homes will require outside air to be supplied to the furnace area by means of ventilation grilles or ducts connecting directly to the outdoors or spaces open to the outdoors such as attics or crawl spaces.

Installation Positions

This furnace may be installed in an upright position or horizontal on either the left or right side panel.

NOTE: Do not install this furnace on its back. For upright upflow furnaces, the return air ductwork may be

attached to the side panel(s) and/or base pan. For horizontal upflow furnaces, the return air ductwork must be

attached to the base pan. For both the upright or horizontal counterflow furnaces, the

return air ductwork must be attached to the base pan (top end of the blower compartment).

NOTE: Do not attach the ductwork to the back of the furnace. Contact your local distributor for the proper airflow requirements

and the number of required ductwork connections. See the “Recommended Installation Positions” illustrations for the appropriate installation positions, ductwork connections and the resulting airflow arrangements.

HORIZONTAL APPLICATIONS

A. Alternate vent/flue location B. Level end-to-end C. Level side-to-side or slightly

tilted—doors 0" to below back panel

D. Drain line—

foot downward slope

³⁄₄

" (1.9 cm)

¹⁄₄

" (6.4 mm) per

E. 24" (61 cm) minimum service

clearance

F. 4

³⁄₄

" (12.1 cm) minimum drain trap

clearance G. Supports at both ends and middle H. Drain pan

I. Gas line with 3" (7.6 cm) minimum

drip leg

Drain Trap and Lines

In horizontal applications, the condensate drain trap is secured to the furnace side panel, suspending it below the furnace. A minimum clearance of 4³⁄₄" (12.1 cm) below the furnace must be provided for the drain trap. Additionally, the appropriate downward piping slope must be maintained from the drain trap to the drain location. Refer to “Condensate Drain Trap and Lines” for further details. If the drain trap and drain line will be exposed to temperatures near or below freezing, adequate measures must be taken to avoid condensate from freezing.

Leveling

Leveling ensures proper condensate drainage from the heat exchanger and induced draft blower. For proper flue pipe drainage, the furnace must be level lengthwise from end to end. The furnace should also be level from back to front, or have a slight tilt with the access doors sloping downward ³⁄₄" (1.9 cm) lower than the back panel. The slight tilt allows the heat exchanger condensate, generated in the recuperator coil, to flow forward to the recuperator coil front cover.

AND CONSIDERATIONS

Horizontal applications, in particular, may dictate many of the installation’s specifics such as airflow direction, ductwork connections, flue and combustion air pipe connections, etc. The basic application of this furnace as a horizontal furnace differs only slightly from an upright installation.

Alternate Vent/Flue Connections

In horizontal installations, provisions for alternate flue and combustion air piping are available for upflow furnaces with left discharge and counterflow furnaces with right air discharge. This configuration allows the flue and combustion air piping to be run vertically through the side of the furnace. Refer to the “Recommended Installation Positions” illustrations for further details. The standard piping connections may also be used in these positions.

See “Vent/Flue Pipe and Combustion Air Pipe” for details

concerning the conversion to the alternate vent/flue and combustion air connections.

When using the horizontal alternate vent configuration, you must use the RF000142 vent drain kit. See “Alternate Flue/Vent Location” illustration.

NOTE: Alternate vertical piping connections cannot be used when an upflow furnace is installed with the supply air discharging to the right, or when a counterflow furnace is installed with the supply air discharging to the left. In either case, use the standard flue and combustion air piping connections.

Alternate Flue/Vent Location

Recommended Installation Positions—Horizontal Upflow—Right Side Panel Discharge

A. Bottom return duct connection B. Air discharge

Alternate Electrical and Gas Line Connections

This furnace has provisions allowing for electrical and gas line connections through either side panel. In horizontal applications, the connections can be made either through the top or bottom of the furnace.

A. Vent/Drain B. Airflow C. Field supplied drain hose

NOTES:

■ The field supplied drain hose is connected from the vent/drain

connection to the condensate drain line with a field supplied connector.

■ Make a small loop in the drain hose to serve as a P-trap.

Recommended Installation Positions—Upright Upflow

A. Air discharge B. Alternate flue pipe location

C. Side return duct connections D. Bottom return duct connection

Recommended Installation Positions—Horizontal Upflow—Left Side Panel Discharge

Drain Pan

A drain pan must be provided if the furnace is installed above a conditioned area. The drain pan must cover the entire area under the furnace (and air conditioning coil, if applicable).

Freeze Protection

Refer to “Horizontal Applications and Conditions—Drain Trap and Lines.”

Furnace Suspension

If the furnace is installed in a crawl space, it must be suspended from the floor joist or supported by a concrete pad.

NOTE: Never install the furnace on the ground or allow it to be exposed to water. Refer to “Location Requirements and Considerations—Furnace Suspension” for further details.

PROPANE GAS/HIGH ALTITUDE

INSTALLATIONS

WARNING

Possible property damage, personal injury or death may occur if the correct conversion kits are not installed. The appropriate kits must be applied to ensure safe and proper furnace operation. All conversions must be performed by a qualified installer or service agency.

This furnace is shipped from the factory configured for Natural gas at standard altitude. Propane gas installations require an orifice change to compensate for the energy content difference between Natural and propane gas.

High altitude installations may require both a pressure switch and an orifice/spring change. These changes are necessary to compensate for the natural reduction in the density of both the gas fuel and the combustion air at higher altitude.

Goodman 52

A. Air discharge B. Alternate flue pipe location C. Bottom return duct connection

For installations above 7,000 ft (2,133.6 m), refer to your distributor for required kit(s).

Manifold Pressure

Gas Altitude Kit Orifice

High Stage

Low Stage

Pressure Switch Change

It is the responsibility of the installer to follow the manufacturers’ recommendations and to verify that all vent/flue piping and connectors are compatible with furnace flue products. Additionally, it is the responsibility of the installer to ensure that all piping and connections possess adequate structural integrity and support to avoid flue pipe separation, shifting or sagging during furnace operation.

Natural

0 to

Propane LPM-05*

NOTES:

■ LPM-05* supports White-Rodgers 2-stage valve only.

■ LPM-06* supports both Honeywell and White-Rodgers 2-stage

■ In Canada, gas furnaces are only certified to 4,500 ft

Contact the distributor for a tabular listing of appropriate manufacturer’s kits for propane gas and/or high altitude installations. The indicated kits must be used to insure proper furnace operation. All conversions must be performed by a qualified installer or service agency.

7,000 ft (2,133.6 m)

valves.

(1,371.6 m).

None #43 3.5"

W.C.

#55 10.0"

LPM-06*

W.C.

1.9" W.C.

6.0" W.C.

None

VENT/FLUE PIPE AND

COMBUSTION AIR PIPE

WARNING

Failure to follow these instructions can result in bodily injury or death. Carefully read and follow all instructions given in this section.

Upon completion of the furnace installation, carefully inspect the entire flue system both inside and outside of the furnace to assure it is properly sealed. Leaks in the flue system can result in serious personal injury or death due to exposure to flue products, including carbon monoxide.

A condensing gas furnace achieves its high level of efficiency by extracting almost all of the heat from the products of combustion and cooling them to the point where condensation takes place. Because of the relatively low flue gas temperature and water condensation requirements, PVC pipe is used as venting material.

NOTES:

■ This furnace must not be connected to Type B, BW, or L vent

or vent connector, and must not be vented into any portion of a factory-built or masonry chimney except when used as a pathway for PVC as described later in this section.

■ Do not common vent this appliance with another appliance or

use a vent which is used by a solid fuel appliance.

■ Do not use commercially available “no hub connectors” other

than those shipped with this product.

Goodman 53

WARNING

Goodman 54

Dual Certification: Nondirect/Direct Vent

This furnace is dual certified and may be installed as a nondirect vent (single pipe) or direct vent (dual pipe) appliance. A nondirect vent installation requires only a vent/flue pipe, while a direct vent installation requires both a vent/flue pipe and a combustion air intake pipe. Refer to the appropriate section for details concerning piping size, length, number of elbows, furnace connections and terminations.

Materials and Joining Methods

WARNING

To avoid bodily injury, fire or explosion, solvent cements must be kept away from all ignition sources (for example, sparks, open flames and excessive heat) as they are combustible liquids. Avoid breathing cement vapors or contact with skin and/or eyes.

2" or 3" (5.1 cm or 7.6 cm) nominal diameter PVC Schedule 40 pipe meeting ASTM D1785, PVC primer meeting ASTM F656 and PVC solvent cement meeting ASTM D2564 specifications must be used. Fittings must be DWV type fittings meeting ASTM D2665 and ASTM D3311. Carefully follow the pipe manufacturer’s instructions for cutting, cleaning and solvent cementing of PVC.

The use of Schedule 40 PVC Cellular Core (Foam Core) plastic pipe is also acceptable as a flue/vent and intake pipe material. PVC primer meeting ASTM F656 and PVC solvent cement meeting ASTM D2564 specifications must be used. Fittings must be DWV type fittings meeting ASTM D2665 and ASTM D3311. Carefully follow the manufactures instructions for cutting, cleaning and solvent cementing of PVC.

As an alternative to PVC pipe, primer, solvent cement and fittings, ABS materials which are in compliance with the following specifications may be used. 2" or 3" (5.1 cm or 7.6 cm) ABS Schedule 40 pipe must meet ASTM D1527 and, if used in Canada, must be CSA approved. Solvent cement for ABS to ABS joints must meet ASTM D2235 and, if used in Canada, must be CSA approved. The solvent cement for the PVC to ABS transition joint must meet ASTM D3138. Fittings must be DWV type fittings meeting ASTM D2661 and ASTM D3311 and, if used in Canada, must be CSA approved. Carefully follow the manufacturers’ instructions for cutting, cleaning, and solvent cementing PVC and/or ABS.

All 90° elbows must be medium radius (¹⁄₄ bend DWV) or long radius (long sweep ¹⁄₄ bend DWV) types conforming to ASTM D3311. A medium radius (¹⁄₄ bend DWV) elbow measures 3¹⁄₁₆" (7.8 cm) minimum from the plane of one opening to the centerline of the other opening for 2" (5.1 cm) diameter pipe, and 4⁹⁄₁₆" (11.6 cm) minimum for 3" (7.6 cm) pipe.

Goodman 55

Proper Vent/Flue and Combustion Air Piping

Practices

Adhere to these instructions to ensure safe and proper furnace performance. The length, diameter and number of elbows of the vent/flue pipe and combustion air pipe (when applicable) affects the performance of the furnace and must be carefully sized. All piping must be installed in accordance with local codes and these instructions.

Piping must be adequately secured and supported to prohibit sagging, joint separation and/or detachment from the furnace. Horizontal runs of vent/flue piping must be supported every 3 ft to 5 ft (91.4 cm to 1.5 m) and must maintain a ¹⁄₄" (6.4 mm) per foot downward slope, back toward the furnace, to properly return condensate to the furnace’s drain system. Allowances should be made for minor expansion and contraction due to temperature variations. For this reason, particular care must be taken to secure piping when a long run is followed by a short offset of less than 40" (101.6 cm).

Precautions should be taken to prevent condensate from freezing inside the vent/flue pipe and/or at the vent/flue pipe termination. All vent/flue piping exposed to freezing temperatures below 35°F (2ºC) for extended periods of time must be insulated with ¹⁄₂" (1.3 cm) thick closed-cell foam. Also all vent/flue piping exposed outdoors in excess of the terminations shown in this manual (or in unheated areas) must be insulated with ¹⁄₂" (1.3 cm) thick closed-cell foam. Inspect piping for leaks prior to installing insulation.

Termination Locations

NOTE: Refer to “Location Requirements and Considerations” for combustion air contaminant restrictions.

The following bullets and illustration describe the restrictions concerning the appropriate location of vent/flue pipe and combustion air intake pipe (when applicable) terminations. Refer to “Nondirect Vent (Single Pipe) Piping and Direct Vent (Dual Pipe) Piping” located in this section for specific details on termination construction.

■ All terminations (flue and/or intake) must be located at least

12" (30.5 cm) above ground level or the anticipated snow level.

■ Vent terminations (nondirect and direct vent) must terminate

at least 3 ft (91.4 cm) above any forced air inlet located within 10 ft (3 m).

NOTE: This provision does not apply to the combustion air intake termination of a direct vent application.

■ The vent termination of a nondirect vent application must

terminate at least 4 ft (121.9 cm) below, 4 ft (121.9 cm) horizontally from or 12" (30.5 cm) above any door, window or gravity air inlet into any building.

■ The vent termination of a direct vent application must

terminate at least 12" (30.5 cm) from any opening through which flue gases may enter a building (door, window or gravity air inlet).

■ The vent termination of vent pipe run vertically through a roof

must terminate at least 12" (30.5 cm) above the roof line (or the anticipated snow level) and be at least 12" (30.5 cm) from any vertical wall (including any anticipated snow buildup).

■ A vent termination shall not terminate over public walkways

or over an area where condensate or vapor could create a nuisance or hazard or could be detrimental to the operation of regulators, relief valves or other equipment.

■ The combustion air intake termination of a direct vent

application should not terminate in an area which is frequently dusty or dirty.

Vent Termination Clearances

Vent Term Clear G 2009 ENV1

A. Nondirect vent and direct vent

vent/flue terminations

B. Nondirect vent—vent/flue

terminations C. No terminations above walkway D. 48" (121.9 cm minimum) E. 12" (30.5 cm) minimum

F. Direct vent—vent/flue

termination G. Forced air inlet H. Grade or highest anticipated

snow level

I. 3" (7.6 cm) minimum

J. Less than 10 ft (3 m)

NOTE: In Canada, the Canadian Fuel Gas Code takes precedence over the preceding termination restrictions.

Canadian Venting Requirements

In Canada, venting must conform to the requirements of the current CAN/CSA-B149.1-05 Installation Code. Use only CSAlisted, ULC-S636 compliant 2" or 3" (5.1 cm or 7.6 cm) diameter PVC or ABS pipe, solvent cement and fittings throughout. The certified piping should be clearly marked with the ULC Std “S636” on the pipe and fittings. Carefully follow the pipe manufacturers’ instructions for cutting, cleaning and solvent cementing PVC and/or ABS.

The vent can be run through an existing unused chimney provided the space between the vent pipe and the chimney is insulated and closed with a weather-tight, corrosion-resistant flashing.

Standard Furnace Connections

It is the responsibility of the installer to ensure that the piping connections to the furnace are secure, airtight and adequately supported.

As shipped, attachment “couplings” for vent/flue and combustion air intake pipe connections are provided on the furnace’s top cover (upflow) or base pan (counterflow). To use the standard connections, field-supplied vent/flue pipe and combustion air intake pipe (when applicable) should be secured directly to the furnace at these locations.

Vent/Flue Pipe

Vent/flue pipe can be secured to the vent/flue coupling using the rubber coupling and worm gear hose clamps provided with this furnace. See “Standard Connections” illustration. The rubber coupling allows separation of the vent/flue pipe from the furnace during servicing. Combustion air and vent piping should be routed in a manner to avoid contact with refrigerant lines, metering devices, condensate drain lines, etc. If necessary, clearances may be increased by utilizing two 45º long-sweep elbows and creating an “S” joint to provide additional space at connection locations. This joint can be rotated on the fitting to establish maximum clearance between refrigerant lines, metering devices, condensate drain lines, etc. This joint is the equivalent of one 90º elbow when considering elbow count.

Increased Clearance Configuration

Standard Connection—Upflow

Clear Config G 2009

A. Vent pipe B. 45º long-sweep elbows

NOTES:

■ Do not use other commercially available “no hub connectors”

due to possible material conflicts.

■ The vent/flue pipe can also be secured using a PVC or ABS

elbow or coupling using the appropriate glue (see “Materials and Joining Methods”).

■ For nondirect vent installations, a minimum of one 90° elbow

should be installed on the combustion air intake coupling to guard against inadvertent blockage.

Combustion Air Pipe—Direct Vent Installations

On upflow units, secure the combustion air intake pipe directly to the air intake coupling. On counterflow units secure the combustion air intake pipe to the air intake coupling using the rubber coupling and worm gear hose clamps provided with the unit. The counterflow rubber coupling allows service removal of air intake piping internal to the furnace blower compartment.

NOTE: Because of probable material conflicts, do not use other commercially available “no hub connectors.” The combustion air intake pipe can also be secured directly to the counterflow unit air intake pipe coupling.

Combustion Air Pipe—Nondirect Vent Installations

A minimum of one 90° elbow should be installed on the combustion air intake coupling to guard against inadvertent blockage.

A. 90º PVC elbow (nondirect vent only) B. Combustion air pipe (direct vent

only)

C. Rubber coupling with worm

gear hose clamps

D. Vent/flue pipe

Standard Connection—Counterflow

A. 90º PVC elbow (nondirect vent

only)

B. Combustion air pipe (direct vent

only)

C. Rubber couplings with worm

gear hose clamps

D. Vent/flue pipe

Alternate Furnace Connections

If the standard locations are undesirable for a specific installation, alternate side panel locations are available for both combustion air inlet and vent/flue pipe connections. These locations may be of particular benefit to upright upflow installations requiring additional access to an A coil, or to upright counterflow installations requiring additional access to a filter or electronic air cleaner, or to horizontal installations desiring vent/flue (and combustion air intake) piping run vertically from the side of the cabinet.

NOTE: Standard and alternate locations can be combined (for example, an installation may use the standard combustion air intake location but use the alternate vent/flue location or vice versa), if needed.

WARNING

C D E

Edges of sheet metal holes may be sharp. Use gloves as a precaution when removing hole plugs.

Alternate Vent/Flue Location

The alternate vent/flue location is the large hole directly in line with the induced draft blower outlet. To use the alternate vent/flue location, refer to the following steps and the “Alternate Vent/Flue Location” illustration.

NOTE: Counterflow instructions follow the upflow instructions.

Upflow Units

1. Remove and save the 4 screws securing the vent/flue

coupling to the furnace top panel.

Counterflow Units

Remove and save the 4 screws securing the vent/flue coupling to the furnace base pan. Also remove the 3 screws securing the furnace’s internal vent/flue piping to the blower deck.

Upflow and Counterflow Units

2. Loosen the worm gear hose clamps on the rubber elbow and

detach the rubber elbow from both the induced draft blower and the vent/flue pipe.

3. Remove the vent/flue pipe from the furnace.

Upflow Units

4. Cut the vent/flue pipe 3³⁄₄" (9.5 cm) from the flanged end of

the pipe. See “Vent/Flue Pipe Cuts” illustration. NOTE: The section of pipe attached to the coupling will reach

through the side panel to the induced draft blower.

5. Discard remaining pipe and elbows.

Counterflow Units

Cut the vent/flue pipe 3³⁄₄" (9.5 cm) from the blower deck coupling. See “Vent/Flue Pipe Cuts” illustration

Save vent/flue pipe attached to the blower deck coupling for use in the alternate location.

Discard remaining pipe and elbows.

Vent/Flue Pipe Cuts

Goodman 56

Upflow and Counterflow Units

8. Insert the cut section of the vent/flue pipe and coupling into

the alternate vent/flue location.

9. Attach the vent/flue pipe and coupling to the induced draft

blower using a rubber coupling and worm gear hose clamps provided in the drain kit bag.

10. Secure the coupling to the cabinet using the screws removed

in Step 1 or with field-supplied ³⁄₈" #8 self-drilling screws.

WARNING

The rubber elbow is not designed to support a load. When the rubber elbow is mounted externally to the furnace cabinet, extreme care must be taken to adequately support field-supplied vent/flue piping, as damage can result in leaks causing bodily injury or death due to exposure to flue gases, including carbon monoxide.

11. For upright installations, externally mount the rubber elbow to

12. Secure the field-supplied vent/flue piping to the rubber elbow

13. For horizontal installations, externally secure the field

Alternate Vent/Flue Location—Upflow

Goodman 57

the vent/flue coupling using a worm gear hose clamp.

using a worm gear hose clamp. NOTE: Use of the alternate vent/flue location for upright

installations, requires the drain trap to be installed on the same side of the furnace as the flue pipe.

supplied vent/flue pipe directly to the vent/flue coupling using a PVC or ABS coupling or elbow.

C. 3

³⁄₄

" (9.5 cm)

A. Flange B. Cut location

Upflow Units

6. Remove the plastic plug from the alternate vent/flue location.

7. Relocate and install the plastic plug in the standard vent/flue

location (top cover).

Counterflow Units

Remove the plastic plug from the alternate vent/flue location. Relocate and install the plastic plug in the standard vent/flue

location (base pan). Plug remaining hole in the blower deck with the plastic plug

included in the drain kit bag.

A. Vent/flue pipe B. Screw locations (4)

C. Plastic plug—alternate vent/flue location

D. Rubber elbow

E. Induced draft

blower

Alternate Vent/Flue Location—Counterflow/Upright (Upflow Similar)

A. Plastic plug from drain kit bag B. Vent/flue pipe

C. Rubber elbow

D. Induced draft blower

Alternate Vent/Flue Location—Counterflow

C D

A. Vent/flue pipe B. Screw locations (4) C. Screw locations (3)

D. Plastic plug—alternate vent/flue location

E. Rubber elbow F. Induced draft blower

Alternate Vent/Flue Location—Upflow/Horizontal (Counterflow Similar)

CAUTION

Be sure not to damage internal wiring or other components when reinstalling coupling and screws.

9. For nondirect vent installations installed horizontally, a

10. For direct vent installations, secure field-supplied combustion

Alternate Combustion Air Intake Location—Counterflow

Goodman 58

minimum of one 90° elbow should be installed on the combustion air intake coupling to guard against inadvertent blockage.

NOTE: No elbow is required on the alternate combustion air intake of upright installations, however, a minimum clearance of 2" (5.1 cm) is required to assure proper air supply.

air intake pipe directly to the air intake coupling. NOTE: A PVC coupling or elbow is required on counterflow

furnaces.

A. Rubber coupling B. Vent/flue pipe

C. Induced draft blower

Alternate Combustion Air Intake Location

The alternate combustion air intake location consists of a large, unobstructed hole (alternate vent connection is aligned with the induced draft blower). To use the alternate combustion air intake location, refer to the following steps and the “Alternate Combustion Air Intake Location” illustration.

1. Remove and save the 4 screws securing the combustion air

intake coupling to the base pan.

2. Remove the 3 screws securing the furnace’s internal

combustion air intake pipe to the induced draft blower deck.

3. Remove the combustion air intake pipe from the furnace and

cut the pipe at the base pan coupling.

4. Save the base pan coupling and gasket from the induced

draft blower deck coupling for use in the alternate location. Discard the remaining pipe.

5. Remove the plastic plug from the alternate combustion air

intake location.

6. Relocate and install the plastic plug in the standard air intake

location (base pan).

7. Insert the plastic plug (included in the drain kit bag) into the

remaining hole in the induced draft blower deck.

8. With the gasket facing the cabinet side panel and the flange’s

flat spot facing forward, secure the combustion air intake coupling to the cabinet using the screws removed in Step 1 or with field-supplied ³⁄₈" #8 self-drilling screws.

A. Section of pipe to be

cut. B. Screw locations (4) C. 2" (5.1 cm) minimum

D. Plastic plug—alternate combustion air

intake location E. Screw locations (3) F. Plastic plug from drain kit bag

Nondirect Vent (Single Pipe) Piping

Nondirect vent installations require only a vent/flue pipe. The vent pipe can be run horizontally with an exit through the side of the building or run vertically with an exit through the roof of the building. The vent can also be run through an existing unused chimney; however, it must extend a minimum of 12" (30.5 cm) above the top of the chimney. The space between the vent pipe and the chimney must be closed with a weather-tight, corrosionresistant flashing. For details concerning connection of the vent/ flue pipe to the furnace, refer to “Vent Pipe Installation and Combustion Air—Standard Furnace Connections” or “Vent Pipe Installation and Combustion Air—Alternate Furnace Connections” for specific details.

Refer to the following “Nondirect Vent (Single Pipe) Piping—Vent/ Flue Pipe Terminations” for specific details on termination construction.

Although nondirect vent installations do not require a combustion air intake pipe, a minimum of one 90° elbow should be attached to the furnace’s combustion air intake if an upright installation uses the standard intake location, or a horizontal installation uses the alternate air intake location. This elbow will guard against inadvertent blockage of the air intake.

Nondirect Vent Applications

Refer to the following tables for applicable length, elbows and pipe diameter for construction of the vent/flue pipe systems of a nondirect vent (single pipe) installation. In addition to the vent/flue pipe, a single 90º elbow should be secured to the combustion air intake to prevent inadvertent blockage. The tee used in the vent/flue termination must be included when determining the number of elbows in the piping system.

Upflow Nondirect Vent (Single Pipe) Maximum Allowable Length of Vent/Flue Pipe—ft (m)

Number of Elbows

Unit Input (Btu) Pipe—in. (cm) 1 2 3 4 5 6 7 8

45,000 2 or 2¹⁄₂ (5.12 or 6.4) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2) 70,000 2 or 2¹⁄₂ (5.12 or 6.4) 49 (14.9) 46 (14) 43 (13.1) 40 (12.2) 37 (11.3) 34 (10.4) 31 (9.5) 28 (8.5)

3 (7.6) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2) 90,000 3 (7.6) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2) 115,000 3 (7.6) 49 (14.9) 46 (14) 43 (13.1) 40 (12.2) 37 (11.3) 34 (10.4) 31 (9.5) 28 (8.5)

Counterflow Direct Vent (Dual Pipe) Maximum Allowable Length of Vent/Flue Pipe—ft (m)

Number of Elbows

Unit Input (Btu) Pipe—in. (cm) 1 2 3 4 5 6 7 8

70,000 2 or 2¹⁄₂ (5.12 or 6.4) 61 (18.6) 58 (17.7) 55 (16.8) 52 (15.8) 49 (14.9) 46 (14) 43 (13.1) 40 (12.2)

3 (7.6) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2)

90,000 2 or 2¹⁄₂ (5.12 or 6.4) 61 (18.6) 58 (17.7) 55 (16.8) 52 (15.8) 49 (14.9) 46 (14) 43 (13.1) 40 (12.2)

3 (7.6) 71 (21.6) 68 (20.7) 65 (19.8) 62 (18.9) 59 (18) 56 (17.1) 53 (16.2) 50 (15.2)

NOTES:

■ One 90º elbow should be secured to the combustion air

intake connection.

■ Minimum requirement for each vent/flue pipe is 5 ft (1.5 m)

and 1 elbow/tee.

■ Tee used in the vent/flue termination must be included when

■ 2¹⁄₂" or 3" (6.4 cm or 7.6 cm) diameter pipe can be used in

place of 2" (5.1 cm) diameter pipe.

■ Increased clearance configurations using two 45º long-sweep

elbows should be considered equivalent to one 90º elbow.

determining the number of elbows in the piping system.

Vent/Flue Pipe Terminations

■ The vent/flue pipe may terminate vertically, as through a roof,

or horizontally, as through an outside wall.

■ Vertical vent/flue pipe terminations should be as shown in

“Vertical Vent Termination (Single Pipe)” illustration. Refer to “Termination Locations” in this section for details concerning location restrictions.

■ The penetration of the vent through the roof must be sealed

tight with proper flashing such as is used with a plastic plumbing vent.

■ Horizontal vent/flue pipe terminations should be as shown in

“Horizontal Vent Termination (Single Pipe)” illustration. Refer to “Termination Locations” in this section for details concerning location restrictions.

■ A 2³⁄₈" (6.1 cm) diameter wall penetration is required for 2"

(5.1 cm) diameter pipe.

■ A 3" (7.6 cm) diameter hole is required for a 2¹⁄₂" (6.4 cm)

pipe.

■ A 3¹⁄₂" (8.9 cm) diameter hole is required for 3" (7.6 cm)

diameter pipe.

■ To secure the pipe passing through the wall and prohibit

damage to the piping connections, a coupling should be installed on either side of the wall and solvent cemented to a length of pipe connecting the 2 couplings.

■ The length of pipe should be the wall thickness plus the

depth of the socket fittings to be installed on the inside and outside of the wall.

■ The wall penetration should be sealed with silicone caulking

material.

■ In a basement installation, the vent/flue pipe can be run

between joist spaces. NOTE: If the vent pipe must go below a joist and then up into

the last joist space to penetrate the header, two 45° elbows should be used to reach the header rather than two 90° elbows.

Vertical Vent Termination (Single Pipe)

Standard Horizontal Vent Termination (Single Pipe)— Above Highest Anticipated Snow Level

A. Tee (optional) B. 12" (30.5 cm) minimum to roof or

highest anticipated snow level

Alternate Vertical Vent Termination (Single Pipe)

A. 90º medium radius elbows B. 12" (30.5 cm) minimum to roof or

highest anticipated snow level

Standard Horizontal Vent Termination (Single Pipe)

A. 12" (30.5 cm) minimum from wall B. Tee or 90º elbow turned down C. 12" (30.5 cm) minimum to roof or highest anticipated snow level

Direct Vent (Dual Pipe) Piping

The inlet air screens provided in the installation instruction packet are available for the installer to use in the inlet of the combustion air pipe to prevent animals from building nests in the combustion air pipe. Installation of screens, while strongly recommended, is not required and will not affect performance of the furnace.

Direct vent installations require both a combustion air intake and a vent/flue pipe. The pipes may be run horizontally and exit through the side of the building or run vertically and exit through the roof of the building. The pipes may be run through an existing unused chimney; however, they must extend a minimum of 12" (30.5 cm) above the top of the chimney. The space between the pipes and the chimney must be closed with a weathertight, corrosion resistant flashing. Both the combustion air intake and vent/flue pipe terminations must be in the same atmospheric pressure zone. See “Termination Locations,” or “Concentric Vent Termination” in this section for specific details on termination constructions. For details concerning connection of pipes to the furnace, refer to the “Standard Furnace Connections” or “Alternate Furnace Connections” in this section.

A. Inside building B. Wall C. Outside building D. Tee or 90º elbow turned

down

E. 12" (30.5 cm) minimum to roof or

highest anticipated snow level

F. 12" (30.5 cm) minimum from wall G. Coupling H. Elbow or coupling

Vent/Flue and Combustion Air Pipe

Lengths and Diameters

Refer to the following table for applicable length, elbows and pipe diameter for construction of the vent/flue and combustion air intake pipe systems of a direct vent (dual pipe) installation. The number of elbows tabulated represents the number of elbows and/or tees in each vent/flue and combustion air intake pipe. Elbows and/or tees used in the terminations must be included when determining the number of elbows in the piping systems.

If the combustion air intake pipe is to be installed above a finished ceiling or other area where dripping of condensate will be objectionable, insulation of the combustion air pipe may be required. Use ¹⁄₂" (1.3 cm) thick closed-cell foam insulation where required.

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