INSTALLATION INSTRUCTIONS

A80UH2V & 80G1UH2V

Warm Air Gas Furnace

Upflow / Horizontal Left and Right Air Discharge

This manual must be left with the homeowner for future reference.

This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death.

CAUTION

As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), service agency or the gas supplier.

TABLE OF CONTENTS

Unit Dimensions ............................................................ 2

A80UH2V & 80G1UH2V Parts Arrangement ................ 3

A80UH2V & 80G1UH2V Gas Furnace ......................... 4

Shipping and Packing List ............................................ 4

Safety Information ......................................................... 4

Use of Furnace as a Construction Heater .................... 5

General ......................................................................... 6

Combustion, Dilution, Ventilation Air ............................. 6

Setting Equipment ........................................................ 9

Filters .......................................................................... 12

Duct System ................................................................ 12

Venting ........................................................................ 13

Gas Piping .................................................................. 23

Electrical ..................................................................... 25

Thermostat .................................................................. 27

Unit Start-Up ............................................................... 30

Heating Sequence of Operation ................................. 31

Gas Pressure Adjustment ........................................... 33

High Altitude ................................................................ 34

Other Unit Adjustments ............................................... 34

Maintenance ............................................................... 33

Repair Parts List ......................................................... 37

Wiring Diagram ........................................................... 38

506471-01

*506471-01*

Issue 1034

Manufactured By

Allied Air Enterprises, Inc.

A Lennox International, Inc. Company

215 Metropolitan Drive

West Columbia, SC 29170

Page 1 of 41

A80UH2V & 80G1UH2V Unit Dimensions - inches (mm)

1

NOTE

- 20C and 20D size units installed in upflow applications that require air volumes of 1800 cfm (850 L/s or greater must have one of the following:

1. Return air from single side transition will accommodate

20 x 25 x 1 in. (508 x 635 x 25 mm) cleanable air filter.

(Required to maintain proper air velocity.)

2. Single side return air with optional RAB Return Air Base

3. Return Air from bottom and one side.

4. Return air from both sides.

5. Return air from bottom.

2

Flue outlet may be horizontal but furnace must be vented vertically.

3 Optional external side return air filter kit cannot be used with the optional RAB Return Air Base.

*

Consider sizing requirements for optional IAQ equipment before cutting side return opening.

FRONT VIEW

Model

A801UH2V/80G1UH2V

070-12

090-12

090-16

090-20

110-20

135-20 in.

14-1/2

A mm

368

17-1/2

21

24-1/2

446

533

622 in.

13-3/8

B mm

340

16-3/8

416

19-7/8

23-3/8

504

546 in.

13

SIDE VIEW

C mm

330 in.

4-3/4

D mm

121

16 406

6-1/4 159

19-1/2

23

495

584

8

9-3/4

203

248

Page 2 of 41 Issue 1034 506471-01

EXPLODED VIEW

COMBUSTION AIR INDUCER

COMBUSTION AIR INDUCER

PRESSURE SWITCH

ROLLOUT SWITCH

BURNER BOX

GAS VALVE

HEAT EXCHANGER

CONTROL BOX

ACCESS PANEL

CABINET

BLOWER ASSEMBLY

Figure 1

506471-01 Issue 1034 Page 3 of 41

A80UH2V & 80G1UH2V Gas Furnace

The A80UH2V & 80G1UH2V gas furnace is shipped with ready for installation in the upflow or horizontal position (left or right). for horizontal left position the combustion air pressure switch must be moved). The furnace is shipped with the bottom panel in place. The bottom panel must be removed if the unit is to be installed in a horizontal application.

The panel may also be removed in upflow applications.

The furnace is equipped for installation in natural gas applications. A conversion kit (ordered separately) is required for use in propane/LP gas applications.

Shipping and Packing List

1 - Assembled Gas Furnace

1 - Bag assembly containing the following:

2 - Screws

3 - Wire nuts

1 - Snap bushing

1 - Snap Plug

1 - Wire tie

1 - Vent warning label

1 - Owner’s manual and warranty card

Check equipment for shipping damage. If you find any damage, immediately contact the last carrier.

Please refer to specification sheets for available accessories.

Safety Information

DANGER

DANGER OF EXPLOSION!

There are circumstances in which odorant used with

LP/Propane gas can lose its scent. In case of a leak,

LP/Propane gas will settle close to the floor and may be difficult to smell. An LP/Propane leak detector should be installed in all LP applications.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), service agency or the gas supplier.

CAUTION

As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment.

Certifications

These units are CSA International certified to ANSI Z21.47.

In the USA, installation of gas furnaces must conform with local building codes. In the absence of local codes, units must be installed according to the current National Fuel Gas

Code (ANSI-Z223.1). The National Fuel Gas Code is available from the following address:

American National

Standards Institute, Inc., 11 West 42nd Street, New York,

NY 10036.

Clearances

Adequate clearance must be made around the air openings into the vestibule area. In order to ensure proper unit operation, combustion and ventilation air supply must be provided according to the current National Fuel Gas Code.

Vent installations must be consistent with the venting tables

(in this instruction) and applicable provisions of local building codes.

This furnace is CSA International certified for installation clearances to combustible material as listed on the unit nameplate and in the tables in Figures 7 and 11. Accessibility and service clearances must take precedence over fire protection clearances.

NOTE:

For installation on combustible floors, the furnace shall not be installed directly on carpeting, tile, or other combustible material other than wood flooring.

Installed Locations

For installation in a residential garage, the furnace must be installed so that the burner(s) and the ignition source are located no less than 18 inches (457 mm) above the floor.

The furnace must be located or protected to avoid physical damage by vehicles. When a furnace is installed in a public garage, hangar, or other building that has a hazardous atmosphere, the furnace must be installed according to recommended good practice requirements and current

National Fuel Gas Code.

Page 4 of 41 Issue 1034 506471-01

Temperature Rise

NOTE:

Furnace must be adjusted to obtain

a

temperature rise within the range specified on the unit nameplate. Failure to do

so

may cause erratic limit operation and may result in premature heat exchanger failure.

This furnace must be installed so that its electrical components are protected from water.

Installed in Combination with a Cooling Coil

When this furnace is used with cooling units, it shall be installed in parallel with, or on the upstream side of, cooling units to avoid condensation in the heating compartment. See

Figure 2. With a parallel flow arrangement, a damper (or other means to control the flow of air) must adequately prevent chilled air from entering the furnace. If the damper is manually operated, it must be equipped to prevent operation of either the heating or the cooling unit, unless it is in the full

HEAT or COOL

setting. See Figure 2.

Heating Unit Installed Parallel to Air Handler Unit

Heating Unit Installed Upstream of Cooling Unit

Figure 2

When installed, this furnace must be electrically grounded according to local codes. In addition, in the United States, installation must conform with the current National Electric

Code, ANSI/NFPA No. 70. The National Electric Code (ANSI/

NFPA No. 70) is available from the following address:

National Fire Protection Association

1 Battery March Park

Quincy, MA 02269

NOTE:

This furnace is designed for

a

minimum continuous return air temperature

of

60° F (16°C) or an intermittent operation down to 55° F (13°C) dry bulb for cases where

a

night setback thermostat is used. Return air temperature must not exceed 85° F (29°C) dry bulb.

This furnace may be installed in alcoves, closets, attics, basements, garages, and utility rooms in the upflow or horizontal position.

This furnace design has not been certified for installation in mobile homes, recreational vehicles, or outdoors.

Use of Furnace as a Construction Heater

Allied Air does not recommended the use of these units as a construction heater during any phase of construction. Very low return air temperature, harmful vapors and operation of the unit with clogged or misplaced filters will damage the unit.

Units may be used for heating of buildings or structures under construction, if the following conditions are met:

• The vent system must be permanently installed per these installation instructions.

• A room thermostat must control the furnace. The use of fixed jumpers that will provide continuous heating is not allowed.

• The return air duct must be provided and sealed to the furnace.

• Return air temperature range between 60°F (16°C) and

80°F (27°C) must be maintained.

• Air filters must be installed in the system and must be maintained during construction.

• Air filters must be replaced upon construction completion.

• The input rate and temperature rise must be set per the furnace rating plate.

• One hundred percent (100%) outdoor air must be provided for combustion air requirements during construc-tion. Temporary ducting may supply outdoor air to the furnace. Do not connect duct directly to the furnace. Size the temporary duct following these instructions in section for Combustion, Dilution and

Ventilation Air in a confined space with air from outside.

• The furnace heat exchanger, components, duct system, air filters and evaporator coils must be thoroughly cleaned following final construction clean-up.

• All furnace operating conditions (including ignition, input rate, temperature rise and venting) must be verified according to these installation instructions.

506471-01 Issue 1034 Page 5 of 41

General

These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having jurisdiction before installation.

In addition to the requirements outlined previously, the following general recommendations must be considered when installing one of these furnaces:

•

Place the furnace as close to the center of the air distribution system as possible. The furnace should also be located close to the chimney or vent termination point.

•

Do not install the furnace where drafts might blow directly into it. This could cause improper combustion.

•

Do not block the furnace combustion air openings with clothing, boxes, doors, etc. Air is needed for proper combustion and safe unit operation.

•

When the furnace is installed in an attic or other insulated space, keep insulation away from the furnace.

NOTE:

The Commonwealth

of

Massachusetts stipulates these additional requirements:

•

Gas furnaces shall be installed by a licensed plumber or fitter only.

•

The gas cock must be “T handle” type.

•

When a furnace is installed in an attic, the passageway to and service area surrounding the equipment shall be floored.

Combustion, Dilution & Ventilation Air

In the past, there was no problem in bringing in sufficient outdoor air for combustion. Infiltration provided all the air that was needed. In today’s homes, tight construction practices make it necessary to bring in air from outside for combustion. Take into account that exhaust fans, appliance vents, chimneys, and fireplaces force additional air that could be used for combustion out of the house. Unless outside air is brought into the house for combustion, negative pressure (outside pressure is greater than inside pressure) will build to the point that a downdraft can occur in the furnace vent pipe or chimney. As a result, combustion gases enter the living space creating a potentially dangerous situation.

In the absence of local codes concerning air for combustion and ventilation, use the guidelines and procedures in this section to install these furnaces to ensure efficient and safe operation. You must consider combustion air needs and requirements for exhaust vents and gas piping.

A portion of this information has been reprinted with permission from the National Fuel Gas Code (ANSI-Z223.1).

This reprinted material is not the complete and official position of the ANSI on the referenced subject, which is represented only by the standard in its entirety.

WARNING

Product Contains Fiberglass Wool.

Disturbing the insulation in this product during installation, maintenance, or repair will expose you to fiberglass wool. Breathing this may cause lung cancer.

(Fiberglass wool is known to the State of California to cause cancer.)

Fiberglass wool may also cause respiratory, skin, and eye irritation.

To reduce exposure to this substance or for further information, consult material safety data sheets available from address shown below, or contact your supervisor.

Allied Air Enterprises, Inc.

215 Metropolitan Drive

West Columbia, SC 29170

WARNING

Insufficient combustion air can cause headaches, nausea, dizziness or asphyxiation. It will also cause excess water in the heat exchanger resulting in rusting and premature heat exchanger failure. Excessive exposure to contaminated combustion air will result in safety and performance related problems. Avoid exposure to the following substances in the combustion air supply:

Permanent wave solutions

Chlorinated waxes and cleaners

Chlorine base swimming pool chemicals

Water softening chemicals

De-icing salts or chemicals

Carbon tetrachloride

Halogen type refrigerants

Cleaning solvents (such as perchloroethylene)

Printing inks, paint removers, varnishes, etc.

Hydrochloric acid

Antistatic fabric softeners for clothes dryers

Masonry acid washing materials

Page 6 of 41 Issue 1034 506471-01

All gas fired appliances require air for the combustion process. If sufficient combustion air is not available, the furnace or other appliances will operate inefficiently and unsafely. Enough air must be provided to meet the needs of all fuel burning appliances and appliances such as exhaust fans which force air out of the house. When fireplaces, exhaust fans, or clothes dryers are used at the same time as the furnace, much more air is necessary to ensure proper combustion and to prevent a downdraft. Insufficient air causes incomplete combustion which can result in carbon monoxide.

In addition to providing combustion air, fresh outdoor air dilutes contaminants in the indoor air. These contaminants may include bleaches, adhesives, detergents, solvents and other contaminants which can corrode furnace components.

The requirements for providing air for combustion and ventilation depend largely on whether the furnace is installed in an unconfined or a confined space.

Unconfined Space

An unconfined space is an area such as a basement or large equipment room with a volume greater than 50 cubic feet (1.42 m

3

) per 1,000 Btu (.29 kW) per hour of the combined input rating of all appliances installed in that space.

This space also includes adjacent rooms which are not separated by a door. Though an area may appear to be unconfined, it might be necessary to bring in outdoor air for combustion if the structure does not provide enough air by infiltration. If the furnace is located in a building of tight construction with weather stripping and caulking around the windows and doors, follow the procedures in the air from outside section.

Confined Space

A confined space is an area with a volume less than 50 cubic feet (1.42 m

3

) per 1,000 Btu (.29 kW) per hour of the combined input rating of all appliances installed in that space.

This definition includes furnace closets or small equipment rooms.

When the furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air must be handled by ducts which are sealed to the furnace casing and which terminate outside the space containing the furnace. This is especially important when the furnace is mounted on a platform in a confined space such as a closet or small equipment room. Even a small leak around the base of the unit at the platform or at the return air duct connection can cause a potentially dangerous negative pressure condition.

Air for combustion and ventilation can be brought into the confined space either from inside the building or from outside.

Equipment in Confined Space - All Air From Inside

NOTE:

Each opening shall have a free area of at least one square inch per 1,000 Btu (645 mm² per .29 kW) per hour of the total input rating of all equipment in the enclosure, but not less than 100 square inches (64546 mm²).

Figure 3

Air from Inside

If the confined space that houses the furnace adjoins a space categorized as unconfined, air can be brought in by providing two permanent openings between the two spaces.

Each opening must have a minimum free area of 1 square inch (645 mm

2

) per 1,000 Btu (.29 kW) per hour of total input rating of all gas fired equipment in the confined space.

Each opening must be at least 100 square inches (64516 mm

2

). One opening shall be within 12 inches (305 mm) of the top of the enclosure and one opening within 12 inches

(305 mm) of the bottom. See Figure 3.

Air from Outside

If air from outside is brought in for combustion and ventilation, the confined space must have two permanent openings. One opening shall be within 12 inches (305 mm) of the top of the enclosure and one opening within 12 inches (305 mm) of the bottom. These openings must communicate directly or by ducts with the outdoors or spaces (crawl or attic) that freely communicate with the outdoors or indirectly through vertical ducts. Each opening shall have a minimum free area of 1 square inch (645 mm 2 ) per 4,000 Btu (1.17 kW) per hour of total input rating of all equipment in the en-closure.

See Figures 4 and 5. When communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 square inch (645 mm 2 ) per 2,000

Btu (.56 kW) per total input rating of all equipment in the enclosure. See Figure 6.

506471-01 Issue 1034 Page 7 of 41

When ducts are used, they shall be of the same cross sectional area as the free area of the openings to which they connect. The minimum dimension of rectangular air ducts shall be no less than 3 inches (75 mm). In calculating free area, the blocking effect of louvers, grilles, or screens must be considered. If the design and free area of protective covering is not known for calculating the size opening required, it may be assumed that wood louvers will have 20 to 25 percent free area and metal louvers and grilles will have 60 to 75 percent free area. Louvers and grilles must be fixed in the open position or interlocked with the equipment so that they are opened automatically during equipment operation.

EQUIPMENT IN CONFINED SPACE - ALL AIR FROM OUTSIDE

(Inlet Air from Crawlspace &

Outlet Air to Ventilated Attic)

EQUIPMENT IN CONFINED SPACE

(ALL AIR FROM OUTSIDE)

NOTE:

The inlet and outlet air openings shall each have a free area of at least one square inch per 4,000 Btu (645 mm² per 1.17 kW) per hour of the total input rating of all equipment in the enclosure.

Figure 4

EQUIPMENT IN CONFINED SPACE - ALL AIR FROM OUTSIDE

(All Air through Ventilated Attic)

NOTE:

Each air duct opening shall have a free area of at least one square inch per 2,000 Btu (645 mm² per .59 kW) per hour of the total input rating of all equipment in the enclosure. If the equipment room is located against an outside wall and the air openings communicate directly with the outdoors, each opening shall have a free area of at least 1 square inch per 4,000 Btu (645 mm² per 1.17

kW) per hour of the total input rating of all other equipment in the enclosure.

Figure 6

NOTE:

The inlet and outlet air openings shall each have a free area of at least one square inch per 4,000 Btu (645 mm² per 1.17 kW) per hour of the total input rating of all equipment in the enclosure.

Figure 5

Page 8 of 41 Issue 1034 506471-01

Setting Equipment

WARNING

Do not install the furnace on its front or its back. Do not connect the return air ducts to the back of the furnace.

Doing so will adversely affect the operation of the safety control devices, which could result in personal injury or death.

The gas furnace can be installed as shipped in either the upflow position or the horizontal position.

Select a location that allows for the required clearances that are listed on the unit nameplate. Also consider gas supply connections, electrical supply, vent connection, and installation and service clearances [24 inches (610 mm) at unit front].

The unit must be level.

NOTE:

Units with 1/2 hp blower motors are equipped with three flexible legs and one rigid leg. See Figure 7. The rigid leg is equipped with a shipping bolt and a flat white plastic washer (rather than the rubber mounting grommet used with a flexible mounting leg). The bolt and washer must be removed before the furnace is placed into operation. After the bolt and washer have been removed, the rigid leg will not touch the blower housing.

Upflow Applications

Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or alcove installations are shown in Figure 8.

Upflow Application Installation Clearances

Units with 1/2 HP

Blower Motor.

* Front clearance In alcove Installation must be 24 in. (610 mm).

Maintain a minimum of 24 in. (610 mm) for front service access.

‡ For installation on a combustible floor, do not install the furnace directly on carpeting, tile or other combustible materials other than wood flooring.

† Left side requires 3 inches if a single wall vent is used on 14-1/2 inch cabinets.

Figure 8

Figure 7

506471-01 Issue 1034 Page 9 of 41

Return Air - Upflow Applications

Return air can be brought in through the bottom or either side of the furnace installed in an upflow application. If the furnace is installed on a platform with bottom return, make an airtight seal between the bottom of the furnace and the platform to ensure that the furnace operates properly and safely. The furnace is equipped with a removable bottom panel to facilitate installation.

Markings are provided on both sides of the furnace cabinet for installations that require side return air. Cut the furnace cabinet at the maximum dimensions shown on page 2.

NOTE:

20C and 20D units that require air volumes over

1800 cfm (850 L/s) must have

one of

the following:

1.

Single side return air with transition to accommodate 20

x 25 x 1

in. (508

x 635 x 25

mm) cleanable air filter. (Required to maintain proper air velocity.)

See

Figure 9.

2.

Single side return air with optional return airbase.

See

Figure 10.

3.

Bottom return air.

4.

Return air from both sides.

5.

Bottom and

one

side return air.

Single Side Return Air

(with transition and filter)

Figure 9

Optional Return Air Base

(Upflow Applications Only - For use with A, B, C and D cabinets))

FRONT VIEW

NOTE:

Optional Side Return Air Filter Kits are not for use with Return Air Base.

1 Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet.

Minimum unit side return air opening dimensions for units requiring 1800 cfm or more of air (W x H): 23 x 11 in. (584 x 279 mm).

The opening can be cut as needed to accommodate plenum or IAQ cabinet while maintaining dimensions shown.

Side return air openings must be cut in the field. There are cutting guides stenciled on the cabinet for the side return air opening.

The size of the opening must not extend beyond the markings on the furnace cabinet.

² To minimize pressure drop, the largest opening height possible (up to 14 inches) is preferred.

Figure 10

Page 10 of 41 Issue 1034 506471-01

Removing the Bottom Panel

Remove the two screws that secure the bottom cap to the furnace. Pivot the bottom cap down to release the bottom panel. Once the bottom panel has been removed, reinstall the bottom cap. See Figure 11.

Removing the Bottom Panel

Horizontal Applications

The furnace can be installed in horizontal applications. Order horizontal suspension kit (51W10) from Allied Air, or use equivalent suspension method.

Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or alcove installations are shown in Figure 12.

This furnace may be installed in either an attic or a crawl space. Either suspend the furnace from roof rafters or floor joists, as shown in Figure 13, or install the furnace on a platform, as shown in Figure 14.

Typical Horizontal Application

Unit Suspended in Attic or Crawlspace

Figure 11

Horizontal Application

Installatioin clearances

* Front clearance in alcove installation must be 24 in. (610 mm).

Maintain a minimum of 21 in. (610 mm) for front service access.

‡ For installations on a combustible floor, do not install the furnace directly on carpeting, tile or other combustible materials other than wood flooring.

Figure 12

506471-01 Issue 1034

Figure 13

NOTE:

Heavy gauge perforated sheet metal straps may be used to suspend the unit from roof rafters or ceiling joists.

When straps are used to suspend the unit in this way, support must be provided for both the ends. The straps must not interfere with the plenum or exhaust piping installation.

Cooling coils and supply and return air plenums must be supported separately.

NOTE:

When the furnace is installed on

a

platform in

a

crawlspace, it must be elevated enough to avoid water damage and to allow the evaporator coil to drain.

Return Air

-

Horizontal Applications

Return air must be brought in through the end of a furnace installed in a horizontal application. The furnace is equipped with a removable bottom panel to facilitate installation. See

Figure 11.

Page 11 of 41

Horizontal Application

Unit installed on Platform

Figure 14

WARNING

Improper installation of the furnace can result in personal injury or death. Combustion and flue products must never be allowed to enter the return air system or the living space. Use screws and joint tape to seal the return air system to the furnace.

In platform installations with bottom return air, the furnace should be sealed airtight to the return air plenum. A door must never be used as a portion of the return air duct system. The base must provide a stable support and an airtight seal to the furnace. Allow absolutely no sagging, cracks, gaps, etc..

The return and supply air duct systems must never be connected to or from other heating devices such as a fireplace or stove, etc.. Fire, explosion, carbon monoxide poisoning, personal injury and/or property damage could result.

WARNING

The inner blower panel must be securely in place when the blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death.

Filters

This unit is not equipped with a filter or rack. A field provided high velocity filter is required for the unit to operate properly.

Table 1 lists recommended filter sizes.

A filter must be in place any time the unit is operating.

Table 1

Duct System

Use industry approved standards (such as those published by Air Conditioning Contractors of America or American

Society of Heating, Refrigerating and Air Conditioning

Engineers) to size and install the supply and return air duct system. This will result in a quiet and low static system that has uniform air distribution.

NOTE:

Do not operate the furnace in the heating mode with an external static pressure that exceeds 0.8 inches w.c.

Higher external static pressures may cause erratic limit operation.

Supply Air Plenum

If the furnace is installed without a cooling coil, a removable access panel must be installed in the supply air duct. The access panel should be large enough to permit inspection

(either by smoke or reflected light) of the heat exchanger for leaks after the furnace is installed. The furnace access panel must always be in place when the furnace is operating and it must not allow leaks into the supply air duct system.

Return Air Plenum

NOTE:

Return air must not be drawn from a room where this furnace, or any other gas fueled appliance (i.e., water heater), or carbon monoxide producing device (i.e., wood fireplace) is installed.

When return air is drawn from a room, a negative pressure is created in the room. If a gas appliance is operating in a room with negative pressure, the flue products can be pulled back down the vent pipe and into the room. This reverse flow of the flue gas may result in incomplete combustion and the formation of carbon monoxide gas. This toxic gas might then be distributed throughout the house by the furnace duct system.

In upflow applications, the return air can be brought in through the bottom or either side of the furnace. If a furnace with bottom return air is installed on a platform, make an airtight seal between the bottom of the furnace and the platform to ensure that the unit operates properly and safely. Use fiberglass sealing strips, caulking, or equivalent sealing method between the plenum and the furnace cabinet to ensure a tight seal. If a filter is installed, size the return air duct to fit the filter frame.

Page 12 of 41 Issue 1034 506471-01

Venting

A 4 inch diameter flue transition is factory installed on the combustion air inducer outlet of all models.

Figure 16 shows the combustion air inducer as shipped from the factory.

Mounting Screws Location

If necessary reposition the combustion air inducer, pressure switch and/or make-up box as needed per the following steps. See Figures 16 through 22.

1. Remove the four mounting screws (Figure 15) which secure the combustion air inducer / pressure switch assembly to the orifice plate. Lift the assembly and rotate it

90° clockwise or counter clockwise to either the 3 o’clock position or 9 o’clock position. Resecure with four secrews.

Gasket should be left in place.

2. Use tin snips to cut preferred opening on the cabinet for repositioning the flue outlet. Use the cut-out piece as a cover plate to patch unused opening on cabinet.

UPFLOW POSITION

Left Side Vent Discharge

Figure 15

UPFLOW POSITION

Top Vent Discharge

•

•

Remove make-up box assembly (2 screws) and cut wire tie to free makeup box wires. Reinstall make-up box on other side of cabinet.

Resecure make-up box wires: Either pull excess wires through the blower companrtment and secure using supplied wire tie, or coil excess wire and secure to the gas manifold.

Figure 17

UPFLOW POSITION

Right Side Vent Discharge

Figure 16

IMPORTANT

The unit will not vent properly with the flue transition pointed down in the 6 o’clock position.

The combustion air inducer may be rotated clockwise or counterclockwise by 90° to allow for top or side vent discharge in all applications. When the unit is installed, the flue transition must be in the 9 o’clock, 12 o’clock or

3 o’clock position.

506471-01 Issue 1034

•

Pressure switch tubing may be too long. Cut to fit, then reattach to barbed fitting on pressure switch. Tubing must not be allowed to sag.

Figure 18

Page 13 of 41

HORIZONTAL LEFT POSITION

Top Vent discharge

Horizontal Position

HORIZONTAL RIGHT POSITION

Top Vent Discharge

•

•

Disconnect pressure switch hose from barbed fitting on the pressure switch assembly. Remove pressure switch assembly (1 screw) and cut wire tie to free pressure switch wires. Reinstall pressure switch on the other side of orifice plate and reconnect pressure switch hose.

Resecure pressure seitch wires: Either pull excess wires through the blower compartment and secure using supplied wire tie, or coil excess wire and secure to the gas manifold.

Figure 19

HORIZONTAL LEFT POSITION

Side Vent Discharge

•

•

Remove make-up box assembly (2 screws) and cut wire tie to free makeup box wires. Reinstall make-up box on other side of cabinet.

Resecure make-up box wires: Either pull excess wires through the blower compartment and secure using supplied wire tie, or coil excess wire and secure to the gas manifold.

Figure 21

HORIZONTAL RIGHT POSITION

Side Vent Discharge

•

•

Disconnect pressure switch hose from barbed fitting on the pressure switch assembly. Remove pressure switch assembly (1 screw) and cut wire tie to free pressure switch wires. Reinstall pressure switch on the other side of orifice plate and reconnect pressure switch hose.

Resecure pressure seitch wires: Either pull excess wires through the blower compartment and secure using supplied wire tie, or coil excess wire and secure to the gas manifold.

Figure 20

Page 14 of 41 Issue 1034

Figure 22

506471-01

These series units are classified as fan assisted Category I furnaces when vertically vented according to the latest edition of National Fuel Gas Code (NFPA 54 / ANSI Z223.1) in the

USA. A fan assisted Category I furnace is an appliance equipped with an integral mechanical means to either draw or force combustion products through the combustion chamber and/or heat exchanger. This unit is not approved for use with horizontal venting.

NOTE:

Use these instructions as a guide. They do not supersede local codes. This furnace must be vented according to all local codes these installation instructions, and the provided venting tables in these instructions.

The venting tables in this manual were extracted from the

National Fuel Gas Code (NFPA 54 / ANSI Z223.1) and are provided as a guide for proper vent installation. Proper application, termination, construction and location of vents must conform to local codes having jurisdiction. In the absence of local codes, the NFGC serves as the defining document.

Refer to the tables and the venting information contained in these instructions to properly size and install the venting system.

IMPORTANT

Once the venting system is installed, attach the

“Disconnected Vent” warning sticker to a visible area of the plenum near the vent pipe. See Figure 23. The warning sticker is provided in the bag assembly. Order kit 66W04 for additional stickers.

WARNING

Asphyxiation hazard. The exhaust vent for this furnace must be securely connected to the furnace flue transitiion at all times.

Vent Connection

Use self drilling sheet metal screws or a mechanical fastener to firmly secure the vent pipe to the round collar of the flue transition. If self drilling screws are used to attach the vent pipe, it is recommended that three be used. Drive one self drilling screw through the front and one through each side of the vent pipe and collar. See Figure 23.

Install the first vent connector elbow at a minimum of six inches (152 mm) from the furnace vent outlet. See Figure

23.

Venting Using a Masonry Chimney

The following additional requirements apply when a lined masonry chimney is used to vent this furnace.

Masonry chimneys used to vent Category I central furnaces must be either tile lined or lined with a listed metal lining system or dedicated gas vent. Unlined masonry chimneys are prohibited. See Figures 24 and 25 for common venting.

A chimney with one or more sides exposed to the outside of the structure is considered to be an exterior chimney.

An exterior masonry chimney that is not tile lined must be lined with B1 vent or a listed insulated flexible metal vent.

An exterior tile lined chimney that is sealed and capped may be lined with a listed uninsulated flexible metal vent.

If the existing chimney will not accommodate a listed metal liner, either the chimney must be rebuilt to accommodate one of these liners or an alternate approved venting method must be found.

Insulation for the flexible vent pipe must be an encapsulated fiberglass sleeve recommended by the flexible vent pipe manufacturer. See Figure 24.

Common Venting Using Metal Lined

Masonry Chimney

506471-01

Figure 23

Issue 1034

NOTE 1:

Refer to the provided venting tables for installations.

Refer to the capacity requirements shown in the provided venting tables.

Figure 24

Page 15 of 41

Common Venting Using Tile Lined Interior Masonry Chimney and Combined Vent Connector

NOTE: Refer to provided venting tables for installations.

NOTE:

The chimney must be properly sized per provided venting tables or lined with listed metal lining system.

DO NOT

insulate the space between the liner and the chimney wall with puffed mica or any other loose granular insulating material.

Figure 25

Do not install a manual damper, barometric draft regulator, or flue restrictor between the furnace and the chimney.

IMPORTANT

SINGLE appliance venting of a fan assisted furnace into a tile lined masonry chimney (interior or outside wall) is prohibited. The chimney must first be lined with either type B1 vent or an insulated single wall flexible vent lining system which has been sized according to the provided venting tables and the vent pipe manufacturer’s instructions.

A fan assisted furnace may be commonly vented into an existing lined masonry chimney if the following conditions are met:

•

The chimney is currently serving at least one drafthood equipped appliance.

•

The vent connectors and chimney are sized according to the provided venting tables.

If type B1 double wall vent is used inside a chimney, no other appliance can be vented into the chimney. The outer wall of type B1 vent pipe must not be exposed to flue products. A type B1 vent or masonry chimney liner shall terminate above the roof surface with a listed cap or a’iisted roof assembly according to the terms of their respective listings and the vent manufacturer’s instructions.

When inspection reveals that an existing chimney is not safe for the intended purpose, it shall be rebuilt to conform to nationally recognized standards, lined or relined with suitable materials, or replaced with a gas vent or chimney suitable for venting. The chimney passageway must be checked periodically to ensure that it is clear and free of obstructions.

Never connect a Category I appliance to a chimney that is servicing a solid fuel appliance. If a fireplace chimney flue is used to vent this appliance, the fireplace opening must be permanently sealed.

A type B or listed chimney lining system that passes through an unused masonry chimney flue is not considered to be exposed to the outdoors.

General Venting Requirements

Vent these furnaces according to these instructions:

1. Vent diameter recommendations and maximum allowable piping runs are found in the provided venting tables.

2. In no case should the vent or vent connector diameter be less than the diameter specified in the provided venting tables.

3. The minimum vent capacity determined by the sizing tables must be less than the low fire input rating and the maximum vent capacity must be greater than the high fire input rating.

4 .

Single appliance vents

- If the vertical vent or tile lined chimney has a larger diameter or flow area than the vent connector, use the

vertical vent diameter

to determine the

minimum vent capacity

and the

vent connector diameter

to determine the

maximum vent capacity

. The flow area of the vertical vent, however, shall not exceed 7 times the flow area of the listed appliance categorized vent area, drafthood outlet area or flue collar area unless designed according to approved engineering methods.

5.

Multiple appliance vents

- The flow area of the largest section of vertical vent or chimney shall not exceed 7 times the smallest listed appliance categorized vent area, drafthood outlet area or flue collar area unless designed according to approved engineering methods.

Page 16 of 41 Issue 1034 506471-01

6. The entire length of single wall metal vent connector shall be readily accessible for inspection, cleaning, and replacement.

7. Single appliance venting configurations with zero lateral lengths (Tables 3 and 4) are assumed to have no elbows in the vent system. For all other vent configurations, the vent system is assumed to have two 90° elbows.

For each additional 90° elbow or equivalent (for example two 45° elbows equal one 90° elbow) beyond two, the maximum capacity listed in the venting table should be reduced by 10% (0.90 x maximum listed capacity).

8. The common venting Tables (5, 6,7, and 8) were generated using a maximum horizontal vent connector length of 1-1/2 feet (.46 m) for each inch (25 mm) of connector diameter as follows:

Table 2

9. If the common vertical vent is offset, the maximum common vent capacity listed in the common venting tables should be reduced by 20%, the equivalent of two

90° elbows (0.80 x maximum common vent capacity).

The horizontal length of the offset shall not exceed

1-1/2 feet (.46 m) for each inch (25 mm) of common vent diameter.

10. The vent pipe should be as short as possible with the least number of elbows and angles required to complete the job. Route the vent connector to the vent using the shortest possible route.

11. A vent connector shall be supported without any dips or sags and shall slope a minimum of 1/4 inch (6.4 mm) per linear foot (305 mm) of connector, back toward the appliance.

12. Vent connectors shall be firmly attached to the furnace flue collar by self drilling screws or other approved means,except vent connectors of listed type B vent material which shall be assembled according to the manufacturer’s instructions. Joints between sections of single wall connector piping shall be fastened by screws or other approved means.

13. When the vent connector used for Category I appliances must be located in or pass through a crawl space, attic or other areas which may be cold, that portion of the vent connector shall be constructed of listed doublewall type B vent material or material having equivalent insulation qualities.

14. All venting pipe passing through floors, walls, and ceilings must be installed with the listed clearance to combustible materials and be fire stopped according to local codes. In absence of local codes, refer to NFGC

(2223.1 ).

15. No portion of the venting system can extend into, or pass through any circulation air duct or plenum.

16. Vent connectors serving Category I appliances shall not be connected to any portion of mechanical draft systems operating under positive pressure such as Category III or IV venting systems.

17. If vent connectors are combined prior to entering the common vent, the maximum common vent capacity listed in the common venting tables must be reduced by

10%, the equivalent of one 90° elbow (0.90 x maximum common vent capacity).

18. The common vent diameter must always be at least as large as the largest vent connector diameter.

19. In no case, shall the vent connector be sized more than two consecutive table size diameters over the size of the draft hood outlet or flue collar outlet.

20. Do not install a manual damper, barometric draft regulator or flue restrictor between the furnace and the chimney.

21. When connecting this appliance to an existing dedicated or common venting system, you must inspect the venting system’s general condition and look for signs of corrosion. The existing vent pipe size must conform to these instructions and the provided venting tables. If the existing venting system does not meet these requirements, it must be resized.

506471-01 Issue 1034 Page 17 of 41

Capacity of Type B Double Wall Vents with Type B Double Wall Connectors

Serving a Single Category I Appliance

NOTE:

Single appliance venting configureations with zero lateral lengths are assumed to have no elbows in the vent system. For all other vent configurations, the vent system is assumed to have two 90 ° elbows. For each additional 90° elbow or equivalent (for example two 45° elbows equal one 90° elbow) beyond two, the maximum capacity listed in the venting table should be reduced by 10 percent (0.90 x maximum listed capacity).

Table 3

Page 18 of 41 Issue 1034 506471-01

Capacity of Type B Double Wall Vents with Single Wall Metal Connectors

Serving a Single Category I Appliance

NOTE:

Single appliance venting configureations with zero lateral lengths are assumed to have no elbows in the vent system. For all other vent configurations, the vent system is assumed to have two 90 ° elbows. For each additional 90° elbow or equivalent (for example two 45° elbows equal one 90° elbow) beyond two, the maximum capacity listed in the venting table should be reduced by 10 percent (0.90 x maximum listed capacity).

Table 4

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Vent Connector Capacity

Type B Double Wall Vents with Type B Double Wall Connectors

Serving Two or More Category I Appliances

Page 20 of 41

Table 5

Common Vent Capacity

Type B Double Wall Vents with Type B Double Wall Connectors

Serving Two or More Category I Appliances

Table 6

Issue 1034 506471-01

Vent Connector Capacity

Type B Double Wall Vents with Single Wall Metal Connectors

Serving Two or More Category I Appliances

NOTE:

Single appliance venting configureations with zero lateral lengths are assumed to have no elbows in the vent system. For all other vent configurations, the vent system is assumed to have two 90 ° elbows. For each additional 90° elbow or equivalent (for example two 45° elbows equal one 90° elbow) beyond two, the maximum capacity listed in the venting table should be reduced by 10 percent (0.90 x maximum listed capacity).

Table 7

Common Vent Capacity

Type B Double Wall Vents with Single Wall Metal Connectors

Serving Two or more Category I Appliances

506471-01

Table 8

Issue 1034 Page 21 of 41

Removal of the Furnace from Common Vent

In the event that an existing furnace is removed from a venting system commonly run with separate gas appliances, the venting system is likely to be too large to properly vent the remaining attached appliances.

Conduct the following test while each appliance is operating and the other appliances (which are not operating) remain connected to the common venting system. If the venting system has been installed improperly, you must correct the system as indicated in the general venting requirements section.

WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death.

The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation:

1. Seal any unused openings in the common venting system.

2. Inspect the venting system for proper size and horizontal pitch. Determine that there is no blockage, restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition.

3. Close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliances not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

4. Follow the lighting instructions. Turn on the appliance that is being inspected. Adjust the thermostat so that the appliance operates continuously.

5. After the burners have operated for 5 minutes, test for leaks of flue gases at the draft hood relief opening. Use the flame of a match or candle.

6. After determining that each appliance connected to the common venting system is venting properly, (step 3) return all doors, widows, exhaust fans, fireplace dampers, and any other gas burning appliances to their previous mode of operation.

7. If a venting problem is found during any of the preceding tests, the common venting system must be modified to correct the problem.

Resize the common venting system to the minimum vent pipe size determined by using the appropriate tables in

Appendix G. (These are in the current standards of the

National Fuel Gas Code ANSI 2223.1.

Page 22 of 41 Issue 1034 506471-01

Gas Piping

CAUTION

If a flexible gas connector is required or allowed by the authority that has jurisdiction, black iron pipe shall be installed at the gas valve and extend outside the furnace cabinet. The flexible connector can then be added between the black iron pipe and the gas supply line.

Gas Supply

1. This unit is shipped standard for left or right side installation of gas piping (or top entry in horizontal applica-tions). Connect the gas supply to the piping assembly.

2. When connecting the gas supply piping, consider factors such as length of run, number of fittings, and furnace rating to avoid excessive pressure drop. Table 9 lists recommended pipe sizes for typical applications.

3. The gas piping must not run in or through air ducts, clothes chutes, gas vents or chimneys, dumb waiters, or elevator shafts.

4. The piping should be sloped 1/4 inch (6.4 mm) per 15 feet (4.57 m) upward toward the meter from the furnace.

The piping must be supported at proper intervals [every

8 to 10 feet (2.44 to 3.01 m)] with suitable hangers or straps. Install a drip leg in vertical pipe runs to the unit.

5. A 1/8" N.P.T. plugged tap or pressure post is located on the gas valve to facilitate test gauge connection. See

Figure 38.

6. In some localities, codes may require the installation of a manual main shut off valve and union (furnished by the installer) external to the unit. The union must be of the ground joint type.

IMPORTANT

Compounds used on threaded joints of gas piping must be resistant to the actions of liquified petroleum gases.

NOTE:

If emergency shutoff is necessary, shut off the main manual gas valve and disconnect main power to the furnace.

The installer should properly label these devices.

Gas Pipe Capacity - ft³/hr (m³/hr)

Note:

Capacity given in cubic feet (m³) of gas per hour and based on 06.0 specific gravity gas.

Table 9

506471-01 Issue 1034 Page 23 of 41

NOTE:

BLACK IRON PIPE

ONLY

TO BE ROUTED INSIDE OF CABINET

Figure 26

Horizontal Applications

Possible Gas Piping Configurations

Page 24 of 41

NOTE:

BLACK IRON PIPE

ONLY

TO BE ROUTED INSIDE OF CABINET

Figure 27

Issue 1034 506471-01

Leak Check

After gas piping is completed, carefully check all piping connections (factory and field installed) for gas leaks. Use a leak detecting solution or other preferred means.

NOTE:

If emergency shutoff is necessary, shut off the main manual gas valve and disconnect the main power to the furnace. The installer should properly label these devices.

CAUTION

Some soaps used for leak detection are corrosive to certain metals. Carefully rinse piping thoroughly after leak test has been completed. Do not use matches, candles, flame or other sources of ignition to check for gas leaks.

The furnace must be isolated by closing its individual manual shut-off valve and disconnecting from from the gas supply system the during any pressure testing

of

the gas supply system at pressures

less than or equal to

1/2

psig (3.48

kPa,

14

inches w.c.).

IMPORTANT

When testing pressure of gas lines, gas valve must be disconnected and isolated. See Figure 28. Gas valves can be damaged if subjected to pressures greater than

1/2

psig (3.48 kPa, 14 inches w.c.).

The unit is equipped with a field make-up box on the left hand side of the cabinet. The make-up box may be moved to the right side of the furnace to facilitate installation. If the make-up box is moved to the right side, clip the wire ties that bundle the wires together. The excess wire must be pulled into the blower compartment. Secure the excess wire to the existing harness to protect it from damage.

INTERIOR MAKE-UP BOX INSTALLATION

Figure 29

INTERIOR MAKE-UP BOX INSTALLATION

Figure 28

Electrical

ELECTROSTATIC DISCHARGE (ESD)

Precautions and Procedures

CAUTION

Electrostatic discharge can affect electronic components. Take precautions during furnace installation and service to protect the furnace’s electronic controls. Precautions will help to avoid control exposure to electrostatic discharge by putting the furnace, the control and the technician at the same electrostatic potential. Neutralize electrostatic charge by touching hand and all tools on an unpainted unit surface, such as the gas valve or blower deck, before performing any service procedure.

506471-01 Issue 1034

Figure 30

Refer to Figure 40 for schematic wiring diagram and troubleshooting and Figure 41 for field wiring.

1. The power supply wiring must meet Class I restrictions.

Protected by either a fuse or circuit breaker, select circuit protection and wire size according to unit nameplate.

NOTE:

Unit nameplate states maximum current draw.

Maximum over current protection allowed is 15 AMP.

2. Holes are on both sides of the furnace cabinet to facilitate wiring.

3. Install a separate (properly sized) disconnect switch near the furnace so that power can be turned off for servicing.

Page 25 of 41

Table 10

4. Before connecting the thermostat, check to make sure the wires will be long enough for servicing at a later date. Make sure that thermostat wire is long enough to facilitate future removal of blower for service.

5. Complete the wiring connections to the equipment. Use the provided unit wiring diagram and the field wiring diagram shown in Figure 41. Use 18 gauge wire or larger that is suitable for Class II rating for thermostat connections.

6. Electrically ground the unit according to local codes or, in the absence of local codes, according to the current

National Electric Code (ANSI/NFPA No. 70). A green ground wire is provided in the field make-up box.

NOTE:

This furnace contains electronic components that are polarity sensitive. Make sure that the furnace is wired correctly and is properly grounded.

7. One line voltage “EAC” 1/4" spade terminal is provided on the furnace integrated control. Any electronic air cleaner or other accessory rated up to one amp can be connected to this terminal with the neutral leg of the circuit being connected to one of the provided neutral terminals. See Figure 41 for control configuration. This terminal is energized when the indoor blower is operating.

8. One line voltage “HUM” 1/4" spade terminal is provided on the furnace integrated control. Any humidifier rated up to one amp can be connected to this terminal with the neutral leg of the circuit being connected to one of the provided neutral terminals. See Figure 41 for control configuration. This terminal is energized in the heating mode whenever the combustion air inducer is operating.

9. One 24V “H” terminal is provided on the furnace inte-grated control terminal block. Any humidifier rated up to 0.5 amp can be connected to this terminal with the ground leg of the circuit being connected to either ground or the “C” terminal. See Figure 41 for control configuration.

10. Install the room thermostat according to the instructions provided with the thermostat. If the furnace is being matched with a heat pump, refer to the instruction packaged with the dual fuel thermostat.

Indoor Blower Speeds

1. When the thermostat is set to “FAN ON,” the indoor blower will run continuously at approximately 38% of the second stage cooling speed when there is no cooling or heating demand.

2. When this unit is running in the heating mode, the indoor blower will run on the heating speed designated by the positions of DIP switches 11 and 12.

3. When there is a cooling demand, the indoor blower will run on the cooling speed designated by the positions of

DIP switches 5 and 6.

Generator Use - Voltage Requirements

The following requirements must be kept in mind when specifying a generator for use with this equipment:

•

The furnace requires 120 volts ± 10% (Range: 108 volts to 132 volts).

•

The furnace operates at 60 Hz ± 5% (Range: 57 Hz to

63 Hz).

•

The furnace integrated control requires both polarity and proper ground. Both polarity and proper grounding should be checked before attempting to operate the furnace on either permanent or temporary power.

•

Generator should have a wave form distortion of less than 5% RHO.

Electrical Wiring

WARNING

Risk of electrical shock. Disconnect electrical power at the circuit breaker or service panel before making electrical connections. Failure to disconnect power supplies can result in property damage, personal injury, or death.

The furnace must be grounded and wired in accordance with local codes or, in the absence of local codes, with the

National Electrical Code ANSI/NFPA No. 70 (latest edition) and/or CSA C22.1 Electrical Code (latest edition) if an external electrical source is utilized.

Page 26 of 41 Issue 1034 506471-01

In all instances, other than wiring for the thermostat, the wiring to be done and any replacement of wire shall conform with the temperature limitation for Type T wire –63°F (35°C) rise.

Connect a sufficiently sized wire with ground to the furnace’s line voltage connections and ground lug. Refer to the furnace rating plate for electrical characteristics to be used in sizing field supply wiring and overcurrent protection.

The line voltage supply should be routed through a readily accessible disconnect located within sight of the furnace. A junction box on the furnace side panel is provided for line voltage connections. Refer to the furnace wiring diagram for specific connection information.

Proper polarity of the supply connections (“HOT” and

“NEUTRAL”) must be observed to ensure that safety controls provide the protection intended.

A connection to the ground lug and actual earth ground

(typically a ground stake or buried steel pipe) must be maintained for proper operation.

Thermostat

Install a room thermostat according to the instructions furnished with it. Select a location on an inside wall that is not subject to drafts, direct sunshine, or other heat sources.

The initial heat anticipator setting should be equal to the total current draw of the control circuit. Low voltage thermostat connections are to be made to the integrated ignition/blower control board as indicated on the wiring diagram.

Single Stage Thermostat Operation

(A80UH2V and 80G1UH2V Models )

The automatic heat staging option allows a single stage thermostat to be used with two stage furnace models

(A80UH2V or 80G1UH2V). To activate this option, move the jumper pin (see Figure 31) to desired setting (5 minutes or 10 minutes). The furnace will start on 1st stage heat and stay at 1st stage heat for the duration of the selected time before switching to 2nd stage heat.

W1 on the control board must be connected to W1 on the thermostat.

Humidifier

Terminals are provided on the integrated ignition/blower control board for connection to a 120-volt humidifier. The

“HUM” terminal is energized whenever the thermostat calls for heat. See the furnace wiring diagram for specific connection information.

Automatic Heat Staging Jumper

Figure 31

Electronic Air Cleaner

Terminals are provided on the integrated ignition/blower control board for connection of a 120-volt electronic air cleaner. The “EAC” terminal is energized whenever the thermostat calls for heat, cooling, or continuous blower. See furnace wiring diagram for specific connection information.

Variable Speed Features

This furnace is equipped with a variable speed circulation air blower motor that will deliver a constant airflow within a wide range of external static pressures. Other features of this variable speed motor include:

Soft Start

The variable speed motor will slowly ramp up to normal operating speed. This minimizes noise and increases comfort by eliminating the initial blasts of air encountered with standard motors.

Soft Stop

At the end of a cooling or heating cycle, the variable speed motor will slowly ramp down after a short blower “off” delay.

If continuous blower operation has been selected, the variable speed motor will slowly ramp down until it reaches the airflow for that mode.

Passive and Active Dehumidification

Passive Dehumidification

For situations where humidity control is a problem, a dehumidification feature has been built into the variable speed motor. At the start of each cooling cycle, the variable speed motor will run at 82% of the rated airflow for 7.5

minutes. After 7.5 minutes has elapsed, the motor will increase to 100% of the rated airflow.

506471-01 Issue 1034 Page 27 of 41

Active Dehumidification

To achieve additional dehumidification, clip the jumper wire located below the DEHUM terminal on the integrated ignition/ blower control board and connect a humidity control that opens on humidity rise to the DEHUM and R terminals. The

DEHUM terminal on the control board must be connected to the normally closed contact of the humidity control so that the board senses an open circuit on high humidity. In this setup, the variable speed motor will operate at a 18% reduction in the normal cooling airflow rate when there is a call for dehumidification.

Both the passive and active dehumidification methods described above can be utilized on the same furnace.

Circulating Airflow Adjustments

Cooling Mode

The units are factory set for the highest airflow for each model.

Adjustments can be made to the cooling airflow by repositioning the jumper plug marked COOL – A, B, C, D

(see Figure 32) based on the information found in the table.

To determine what CFM the motor is delivering at any time, count the number of times the amber LED on the control board flashes. Each flash signifies 100 CFM; count the flashes and multiply by 100 to determine the actual CFM delivered (for example: 10 flashes x 100 = 1000 CFM).

Heating Mode

The unit as shipped is factory set to run at the middle of the heating rise range as shown on the unit rating plate. If higher or lower rise is desired, change the airflow 15% up or down by moving the ADJUST jumper plug (see Figure 32) from the NORM position to the (+) or (–) position. This adjustment will also cause the cooling airflow to be raised or lowered by 15%.

The TEST position on the ADJUST tap is not used.

The jumper plug on the HEAT tap should remain in the position

(A, B, C, or D) listed in the HEAT Setting column in the table found in Figure 32. Changing the setpoints may not increase or decrease heating blower speeds. In some cases, running the blower with the heat settings in the wrong position may cause the furnace to operate outside the furnace’s intended temperature rise range.

Continuous Blower Operation

The comfort level of the living space can be enhanced when using this feature by allowing continuous circulation of air between calls for cooling or heating. The circulation of air occurs at half the full cooling airflow rate.

To engage the continuous blower operation, place the fan switch on the thermostat into the

ON

position. A call for fan from the thermostat closes R to G on the ignition control board. The control waits for a 1 second thermostat debounce delay before responding to the call for fan by ramping the circulating blower up to 50% of the cooling speed. When the call for continuous fan is satisfied, the control immediately ramps down the circulating blower.

ADJUST, HEAT, and COOL Taps on Integrated Ignition/Blower

Control Board

Figure 32

Page 28 of 41 Issue 1034 506471-01

ADJUSTING AIRFLOW

506471-01

Table 11

Issue 1034 Page 29 of 41

Lighting Instructions

START-UP

For Your Safety, Read Before Operating

WARNING

If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.

These furnaces are equipped with an ignition device which automatically lights the burners.

Do not try to light the burners by hand.

Before operating,

smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

What to do if you smell gas:

• Do not try to light any appliances.

• Extinguish any open flame.

• Do not touch any electric 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.

Do not use this furnace if any part has been under water.

Immediately call a qualified service technician to inspect the furnace and to replace any part of the control system and gas control which has been under water.

IMPORTANT: Refer to the Lighting Instruction label on the furnace for instructions on operating the specific controls used on your unit.

To Start Furnace:

CAUTION

Be sure the manual gas control has been in the “OFF” position for at least 5 minutes before starting the unit.

Do not attempt to manually light the burners.

1. Set the room thermostat to lowest setting.

2. Remove burner access door.

3. Move the gas control knob to the “ON” position. Use only your hand to turn the gas control knob. Never use tools. If the knob will not turn by hand, don’t try to repair it; call a qualified service technician.

Force or attempted repair may result in a fire or explosion.

4. Replace the burner access door.

5. Turn on the electrical power to the furnace.

6. Set room thermostat to a point above room temperature to light the burners. After the burners have ignited, set room thermostat to desired temperature.

To Shut Down Furnace:

1. Set the room thermostat to the lowest setting.

2. Turn off all electric power to the furnace.

3. Remove burner access door.

4. Shut off gas by moving gas control knob to “OFF” position.

5. Replace the burner access door.

WARNING

Should overheating occur or the gas supply fail to shut off, shut off the manual gas valve to the appliance before shutting off the electrical supply.

Page 30 of 41 Issue 1034 506471-01

OPERATION

Sequence of Operation (see Figures 33 – 37)

Heating

On a call for heat from the room thermostat, the control board performs a 1 second self check. Upon confirmation that the pressure switch contacts are in an open position, the control energizes the combustion blower on high speed. The control then checks for adequate combustion air by making sure the low-fire pressure switch contacts are closed.

The igniter energizes and is allowed to warm up for 7 seconds before the gas valve energizes on 1 st stage and burners ignite. 45 seconds after the control confirms ignition has occurred, the control drops the combustion blower to low speed.

The circulating blower ramps up to 50% of 1 st stage heat speed and operates at that speed for one minute (including ramp up time), then at 75% of 1 st stage heat speed for an additional minute. After that, the circulating blower operates at full 1 st stage heat speed until either the heat call is satisfied or the thermostat initiates a call for 2 nd stage heat. On a call for 2 nd stage heat, the control energizes the circulating air blower on full CFM 2 nd stage heat.

If the automatic heat staging option is being used (see Single

Stage Thermostat Operation on page 27), the furnace does not switch to 2 nd stage heat in response to a call from the thermostat but instead operates at 1 st

stage heat for the duration of the selected time before automatically switching to 2 nd

stage heat.

When the call for heat is satisfied, the gas valve and combustion air blower shut down. The control board shuts off the gas valve and runs the combustion blower for an additional 15 seconds. The circulating air blower continues to run for 2 minutes at 82% of the selected heating speed

(low fire or high fire) before ramping down.

In the event the unit loses ignition, the control will attempt to recycle up to five times before it goes into a 1 hour lockout.

Lockout may be manually reset by removing power from the control for more than 1 second or removing the thermostat call for heat for more than 3 seconds.

If during a heating cycle the limit control senses an abnormally high temperature and opens, the control board de-energizes the gas valve and the combustion blower while the circulating blower ramps up to 2 nd

stage heat speed. The circulating blower remains energized until the limits are closed.

Fan On

When the thermostat is set for continuous fan operation and there is no demand for heating or cooling, a call for fan closes the R to G circuit and the circulating blower motor runs at

50% of the selected cooling CFM until switched off. When the call for fan is turned off, the control de-energizes the circulating blower.

Cooling

The unit is set up at the factory for single stage cooling. For two stage cooling operation, clip the jumper wire located between the Y to Y2 terminals on the integrated ignition/ blower control board.

If the active dehumidification feature is enabled, the circulating blower runs at 82% of the selected cooling speed as long as there is a call for dehumidification.

IMPORTANT

The system must not be in either the passive or active dehumidification mode when charging a cooling system.

Single Stage Cooling

A call for cooling from the thermostat closes the R to Y circuit on the integrated ignition/blower control board. The control waits for a 1-second delay before energizing the circulating blower to 82% of the selected cooling CFM (passive dehumidification mode). After 7.5 minutes, the circulating blower automatically ramps up to 100% of the selected cooling airflow. When the call for cooling is satisfied, the circulating blower ramps back down to 82% of the selected cooling airflow for 1 minute, then shuts off.

Two Stage Cooling

A call for 1 st

stage cooling from the thermostat closes the R to Y circuit on the control board. The control waits for a 1second delay before energizing the circulating blower. The blower motor runs at 57% of the selected air flow for the first

7.5 minutes of the 1 st

stage cooling demand (passive dehumidification mode). After 7.5 minutes, the blower motor runs at 70% of the selected cooling air flow until 1 st

stage cooling demand is satisfied.

A call for 2 nd

stage cooling from the thermostat closes the R to

Y2 circuit on the control board. The blower motor ramps up to

100% of the selected cooling air flow. When the demand for cooling is met, the blower ramps down to Y1 until satisfied, then ramps down to 57% for 1 minute, then turns off.

Heat Pump

For heat pump operation, clip the jumper wire located below the O terminal on the integrated ignition/blower control board.

In heat pump mode, a call for heat will result in the circulating air blower operating at the selected cooling airflow after a brief ramp-up period.

506471-01 Issue 1034 Page 31 of 41

W2

1st Stage - 2nd Stage (W1/W2) Heat Call

W1/W2 w1 w2

W1

1 min

1 min

75%*

100%*

100%**

2 min

82%* w1

CALL

50%*

* Percentage of Low Fire CFM

2 min

82%**

W1 - Heat Demand Present w1

- Heat Demand Satisfied

W2 - High Heat Demand Present w2

- High Heat Demand Satisfied

OFF

** Percentage of High Fire CFM

Figure 33

High Heat (W2) Call

w2

100*

2 min

82%*

Y

Single Stage Cooling

7.5 minutes

82%

100% y

1 min

82%

CALL

W2 - High Heat Demand Present w2

- High Heat Demand Satisfied

OFF

* Percentage of High Fire CFM

Figure 34

Call for Fan

G g

50%

G - Fan Switch ON g - Fan Switch OFF

CALL OFF

Y - Cool Demand Present y - Cool Demand Satisfied

CALL

Figure 36

Two Stage Cooling

Y1

7.5

minutes

70%

Y1

/

Y2

100%

57%

1 min

57% y1

70% y1

1 min

57%

OFF

Figure 35

CALL y1 st

1 Stage Cool Demand Satisfied nd

Y2 - 2 Stage Cool Demand Present y2 - 2 nd

Stage Cool Demand Satisfied

Figure 37

OFF

Page 32 of 41 Issue 1034 506471-01

Controls

Following is a description of the operation of some of the controls used in this furnace. All models use one of each control, except as noted.

Pressure Switch

The pressure switch is a normally open switch that monitors combustion air flow. Inadequate air flow resulting from excessive venting system restriction or a failed combustion blower will cause the switch to remain open. A80UH2V and

80G2UHV models have two pressure switches.

propane gas, the manifold pressures are 4.9" w.c. (1 st

stage) and 10.0" w.c. (2 nd

stage).

To measure inlet or outlet pressure, remove plug from desired pressure tap (inlet or outlet) as shown in Figure 38 and connect a water manometer or gauge to the proper pressure tap.

GAS VALVE SHOWN IN “ON” POSITION

Rollout Switch

The rollout switch is a normally closed switch that opens when abnormal temperatures exist in the burner area. This can be caused by a restricted heat exchanger causing burner flame to “roll out” into the vestibule area or burner box.

This switch must be manually reset by pushing the button on top to restore furnace operation. A80UH2V and

80G2UHV models have two rollout switches.

Primary Limit Control

This is a normally closed control that opens if abnormally high circulating air temperatures occur. It is an automatic reset control.

Auxiliary Limit Control

This is a normally closed control, located on the circulating air blower housing, that opens under abnormal “reverse air flow” conditions that could occur in a counterflow or horizontal installation if the circulating air blower fails. It is an automatic reset control.

Interlock (Blower Door) Switch

When the blower door is removed, the interlock switch breaks the power supply to the burner controls and blower motor. The switch operation must be checked to confirm it is operating correctly.

Checking and Adjusting Gas Input

The minimum permissible gas supply pressure for the purpose of input adjustment is 5"w.c. for natural gas or 11" w..c. for propane gas. This furnace requires conversion for use with propane (see Accessories section on page 26 for correct kit). The maximum inlet gas supply pressure is 10.5" w.c. for natural gas and 13" w.c. for propane. Gas input must never exceed the value shown on the furnace rating plate.

These units are equipped for rated input at manifold pressures of 1.7" w.c. (1 st

stage) and 3.5" w.c. (2 nd

stage) for natural gas.

When these furnaces have been converted for use with

506471-01 Issue 1034

Figure 38

These models have separate adjusting screws (3/32" hex) for

1 st stage (marked “LO”) and 2 nd stage (marked “HI”). The adjusting screws are positioned on either side of the barbed fitting (see Figure 38). Turn the adjusting screws clockwise to increase pressure and input; counterclockwise to decrease pressure and input. The pressure regulator adjustment is sensitive; one turn of the adjusting screw will result in a relatively large change in manifold pressure.

To adjust the regulator:

1. Set high-fire (2 nd stage) setting by turning hex adjustment screw to desired rate.

2. Set low-fire (1 st stage) setting by turning hex adjustment screw to desired rate.

Make sure the final high and low fire manifold pressures are within the allowable ranges specified above for the gas being used.

CAUTION

The furnace rate must be within +/- 2% of the appliance rating input.

Be sure to replace the inlet and outlet pressure tap plugs after testing and/or adjusting gas input.

Page 33 of 41

For Natural Gas:

Check the furnace rate by observing the gas meter, when available, making sure all other gas appliances are turned off. The test hand on the meter should be timed for at least one revolution. Note the number of seconds for one revolution.

BTU/HR

INPUT

= Cubic Feet Per Revolution x

3600 x

Heating

Value

The heating value of the gas can be obtained from the local utility company.

For Propane Gas:

The only check for the furnace rate is to properly adjust the manifold pressure using a manometer and the information provided in Table 12. Typical manifold set point for installations at altitudes from 0 to 4500 feet above sea level is 10.0" W.C.

Temperature Rise

Check the temperature rise and, if necessary, adjust blower speed to maintain temperature rise within the range shown on the unit rating plate.

High Altitude

In both the United States and Canada, this furnace is approved for operation at altitudes from 0 to 4500 feet above sea level without any required modifications. From 4500 to

7500 feet, the gas manifold pressure needs to be adjusted according to the information shown in Table 12. To adjust the manifold pressure, refer to previous section

and Adjusting Gas Input. furnace was converted on . . . . . . “.

Checking

For installations above 7500 feet, call Technical Service at 1-800-515-3501 for assistance.

For installations above 4500 feet fill in the appropiate information on the furnace label that has the words

“This

Emergency Replacement Motor Operation

If the variable speed motor needs to be replaced in an emergency situation (such as “no heat”) and an exact replacement motor is not immediately available, a standard

PSC motor of equivalent frame size, voltage, rotation, and horsepower can be

temporarily

installed until the correct replacement motor can be obtained.

Connect the desired speed tap to the “EAC” terminal and the neutral tap to the neutral terminal on the ignition control (refer to the furnace wiring diagram). T he ignition control will control the motor’s operation, including a nominal 20 second “on” delay with a call for heat and a nominal 180 second “off” delay when the thermostat is satisfied. It will also operate the motor on a call for cooling, with no “on” or “off” delays.

Verify that the unit is operating at the desired speed and within the rise range as shown on the unit rating plate.

The correct replacement motor must be installed as soon as possible to ensure continued satisfactory operation of the furnace.

MANIFOLD PRESSURE SETTINGS

* Consult local utility for actual heating value.

Furnace input = Input Factor x Nameplate Input

NOTE:

A natural to LP/Propane gas changeover kit is necessary to convert this unit. Refer to the changeover kit installation instruction for the conversion procedure.

Table 12

Page 34 of 41 Issue 1034 506471-01

MAINTENANCE

WARNING

ELECTRICAL SHOCK, FIRE,

OR EXPLOSION HAZARD

Failure to follow the safety warnings exactly could result in dangerous operation, serious injury, death, or property damage.

Improper servicing could result in dangerous operation, serious injury, death, or property damage.

• Before servicing, disconnect all electrical power to furnace.

• When servicing controls, label all wires prior to disconnecting. Reconnect wires correctly.

• Verify proper operation after servicing.

Typical Flame Appearance

Heat

Exchanger

Burner

Gas

Manifold

Figure 39

Burner

Flame

(Blue Only)

It is recommended that this furnace be inspected by a qualified service technician at the beginning of each heating season.

Filters

Filters should be checked at least every 6 weeks. Disposable filters should be replaced when dirty, and cleanable filters should be cleaned regularly. It is important to keep the air filters clean, as dirty filters can restrict airflow and the blower and induced draft motors depend upon sufficient air flowing across and through them to keep from overheating.

Burners

Light the burners and allow to operate for a few minutes to establish normal burning conditions. Observe the burner flames. Compare this observation to Figure 39 to determine if proper flame adjustment is present. Flame should be predominantly blue in color and strong in appearance. Check that all burners are lit, and that the flame does not impinge on the sides of the heat exchanger.

Distorted flame or yellow tipping of the natural gas burner flame, or long yellow tips on propane, may be caused by lint accumulation or dirt inside the burner or burner ports, at the air inlet between the burner and manifold pipe, or obstructions over the burner orifice.

Use a soft brush or vacuum to clean the affected areas.

Lubrication

The blower motor and induced draft motor are pre-lubricated by the manufacturer and do not require further lubricating attention. However, the motors should be cleaned periodically to prevent the possibility of overheating due to an accumulation of dust and dirt on the windings or on the motor exterior.

506471-01 Issue 1034 Page 35 of 41

CONTROL DIAGNOSTICS

Troubleshooting

Make the following visual checks before troubleshooting:

1. Check to see that the power to the furnace and the integrated ignition/blower control board is ON.

2. The manual shutoff valves in the gas line to the furnace must be open.

3. Make sure all wiring connections are secure.

4. Review the Sequence of Operation (see page 31).

Start the system by setting thermostat above room temperature. Observe system response. Then use the information provided in this section to check the system operation.

The furnace has a built-in, self-diagnostic capability. If a system problem occurs, a fault code is shown by a red LED on the control board. The control continuously monitors its own operation and the operation of the system. If a failure occurs, the LED will indicate the failure code. The flash codes are presented in Table 13

Fault Code History Button

The control stores the last five fault codes in memory. A pushbutton switch is located on the control (see Figure 40 on page 38). When the pushbutton switch is pressed and released, the control flashes the stored fault codes. The most recent fault code is flashed first; the oldest fault code is flashed last. To clear the fault code history, press and hold the pushbutton switch in for more than 5 seconds before releasing.

High Heat State LED

On A80UH2V and 80G1UH2V models, a green LED is provided on the control board to indicate high heat state

(see Table 14).

CFM LED

On A80UH2V and 80G1UH2V models equipped with a variable speed motor, an amber LED is provided on the control board to display CFM. To determine what CFM the motor is delivering at any time, count the number of times the amber LED flashes. Each flash signifies 100 CFM; count the flashes and multiply by 100 to determine the actual CFM delivered (for example: 10 flashes x 100 = 1000 CFM).

Failure Codes - Red LED

LED Off

LED On

1 Flash

2 Flashes

3 Flashes

4 Flashes

5 Flashes

6 Flashes

7 Flashes

8 Flashes

9 Flashes

LED Status Fault Description

No power to control or control hardware fault detected

Normal operation

Flame Present with gas valve off

Pressure switch closed with inducer off

Low-fire pressure, rollout, or aux limit switch open

High limit switch open

Not used

Pressure switch cycle lockout

Lockout due to no ignition

Lockout due to too many flame dropouts

Incorrect polarity and phasing

Table 13

High Heat State - Green LED

LED

Status

LED Off

LED On

LED Flashing

Description

No demand for high heat

High heat demand, operating normally

High heat demand, high pressure switch not closed

Table 14

Page 36 of 41 Issue 1034 506471-01

REPAIR PARTS

The following repair parts are available from the local distributor. When ordering parts, include the complete furnace model number and serial number which are printed on the rating plate located on the furnace.

Control Group

Transformer

High limit control

Auxiliary limit

Gas valve

Integrated ignition/blower control board

Flame sensor

Pressure switches – 1 st

stage and 2 nd

stage

Blower door interlock switch

Combustion blower assembly

Flame rollout protector switch

Hot surface igniter

Input choke

Heat Exchanger Group

Heat exchanger

Blower Group

Blower housing assembly

Blower wheel

Blower mount

Blower motor

Blower motor mount

Burner Group

Gas manifold

Burner orifices

Burners

506471-01 Issue 1034 Page 37 of 41

INDUCED

DRAFT

BLOWER

S1

P1

3

3

2 1

2 1

1

2

3

4

5-PIN

5

CONNECTOR

FAULT CODE

HISTORY

BUTTON

(SEE NOTE 1)

Wiring Diagram

PRESSURE

SWITCH

(HIGH)

PRESSURE

SWITCH

(LOW)

BRN

PRESSURE

SWITCH -

DRAIN

(IF USED)

VLT VLT

ROLLOUT

SWITCH

(IF USED)

VLT

ROLLOUT

SWITCH

WHT/BLK

MAIN

LIMIT

RED

BRN

RED/BLK

ORN

BLU

GRY

GAS VALVE

M C HI

FLAME

SENSOR

IGNITER

1

1

2

2

2-PIN

CONNECTOR

HOT

NEUTRAL

GROUND

120/1/60

VLT

WHT

INTERLOCK

SWITCH

BLK

BLK/WHT

WHT

E NON

5

10

P5

HOT

IGNITION CONTROL

AUTOMATIC

HEAT STAGING

JUMPER

GREEN LED

RED LED

AMBER LED

SW1

W1W2 C R G Y

Y2 O

W1 W2 C Y

THERMOSTAT

R G

CONDENSER

TRANSFORMER

AUX LIMIT

SWITCH

(IF USED)

AUX LIMIT

SWITCH

12 9 6 3

11 8 5 2

10 7 4 1

YEL

WHT

YEL

YEL

WHT

CIRCULATION

BLOWER

5-PIN

CONNECTOR

1 2 3 4 5

BLK

GRN

WHT

INPUT CHOKE

(IF USED)

BLK

NOTES:

BRN

TYP

1. PRESS AND RELEASE FAULT CODE HISTORY BUTTON TO

DISPLAY FAULT CODES. TO ERASE CODES, PRESS AND HOLD

BUTTON IN FOR MORE THAN 5 SECONDS

LINE VOLTAGE - FACTORY

LINE VOLTAGE - FIELD

LOW VOLTAGE - FACTORY

LOW VOLTAGE - FIELD

2. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE REPLACED, IT MUST BE REPLACED

WITH WIRING MATERIAL HAVING A TEMP. RATING OF AT LEAST 90°C.

3. PROPER POLARITY MUST BE OBSERVED FOR FIELD LINE VOLTAGE SUPPLY; IGNITION CONTROL WILL LOCK

OUT IF POLARITY IS REVERSED.

4. FOR TEMPORARY SERVICE REPLACEMENT OF CIRCULATING BLOWER MOTOR WITH PSC MOTOR, CONNECT

DESIRED SPEED TAP TO “EAC” TERMINAL AND NEUTRAL TAP TO NEUTRAL TERMINAL ON IGNITION CONTROL.

5. DO NOT CONNECT C (COMMON) CONNECTION BETWEEN INDOOR UNIT AND THERMOSTAT EXCEPT WHEN

REQUIRED BY THE INDOOR THERMOSTAT. REFER TO THE THERMOSTAT INSTALLATION INSTRUCTIONS.

Figure 40

Page 38 of 41 Issue 1034 506471-01

Typical Field Wiring Diagram

506471-01

Figure 41

Issue 1034 Page 39 of 41

START-UP & PERFORMANCE CHECK LIST

UNIT SET UP

Page 40 of 41 Issue 1034 506471-01

UNIT OPERATION

506471-01 Issue 1034 Page 41 of 41