Lennox 070V36B, 090V60C, 110V60C, 090V36C User Manual

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INSTALLATION

 2011 Lennox Industries Inc.

Dallas, Texas, USA

DOWNFLOW

AIR FLOW

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.

INSTRUCTIONS SLP98DFV

DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE DOWNFLOW AIR DISCHARGE

506611−01 02/2011 Supersedes 10/2010

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.

A thermostat is not included and must be ordered separately.

 The Lennox icomfort Touch thermostat must be

used in communicating applications.

 In non−communicating applications, the Lennox

ComfortSense® 7000 thermostat may be used, as well as other non−communicating thermostats.

In all cases, setup is critical to ensure proper system operation.

Field wiring for both communicating and non−communicating applications is illustrated in diagrams, which begin on Page 30.

Litho U.S.A.

NOTICE

Table of Contents

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

Parts Arrangement 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SLP98DFV Gas Furnace 4. . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

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

Setting Equipment 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filters 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duct System 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pipe and Fittings Specifications 10. . . . . . . . . . . . . . . . . . .

Joint Cementing Procedure 11. . . . . . . . . . . . . . . . . . . . . .

Venting Practices 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vent Piping Guidelines 12. . . . . . . . . . . . . . . . . . . . . . . . . .

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

02/11

*2P0211*

Page 1

Electrical 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Integrated Control 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Blower Motor Performance 40. . . . . . . . . . . . . . . . . . . . . . .

Unit Start Up 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gas Pressure Measurement 46. . . . . . . . . . . . . . . . . . . . .

High Altitude Information 46. . . . . . . . . . . . . . . . . . . . . . . .

Proper Combustions 47. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other Unit Adjustments 46. . . . . . . . . . . . . . . . . . . . . . . . . .

Heating Sequence of Operation 48. . . . . . . . . . . . . . . . . .

Service 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Planned Service 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Integrated Control Diagnostic Codes 53. . . . . . . . . . . . . .

Configuring Unit Size Codes 56. . . . . . . . . . . . . . . . . . . . .

Troubleshooting 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Repair Parts List 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

506611−01

*P506611-01*

Unit Dimensions − inches (mm)

COMBUSTION

AIR INTAKE

EXHAUST AIR

OUTLET

2−1/16 (52)

(127)

2−1/4

(57)

9/16

(14)

RETURN AIR

OPENING

9/16 (14)

TOP VIEW

3/4

(19)

AIR

FLOW

Supply

Air

9/16 (14)

3/4

(19)

(838)

1−1/2 (38)

Front Panel

2 (51)

Either Side

GAS PIPING INLET

(Either Side)

9−1/8 (232) Right 6−9/16 (167) Left

27−3/4 (7705)

19−7/16

(494)

ELECTRICAL INLET

(Either Side)

CONDENSATE

TRAP CONNECTION

(Either Side)

6−7/16 (163)

Either Side

19−1/4

(489)

9 (229) Right

Either Side

Supply

Air

9/16 (14)

3/4

(19)

FRONT VIEW SIDE VIEW

SLP98DF Model No.

070V36B 17−1/2 446 16−3/8 416 16 406 7−5/8 194

090V36C 090V48C 090V60C 110V60C

A B C D

in. mm in. mm in. mm in. mm

21 533 19−7/8 505 19−1/2 495 9−3/8 238

Page 2

Parts Arrangement

CONTROL BOX

(includes variable capacity

integrated control,

transformer, circuit breaker

and door switch)

BLOWER ASSEMBLY

(Variable Speed Blower

Motor Is Hidden)

BLOWER

ACCESS

PANEL

BAG ASSEMBLY

ACCESS PANEL

COMBUSTION AIR INDUCER

GAS VALVE

PRIMARY LIMIT

BURNER BOX ASSEMBLY

FIGURE 1

Page 3

SLP98DFV Gas Furnace

Safety Information

The SLP98DFV category IV gas furnace is equipped with a variable−capacity, variable−speed integrated control. This control ensures compatibility with the Lennox icomfort Touch thermostat and Harmony III zone control system, as well as a thermostat which provides humidity control.

The furnace is equipped for installation in natural gas applications only. A changeover kit may be ordered for LP applications.

The SLP98DFV must be installed only as a Direct Vent gas central furnace.

NOTE − In Direct Vent installations, combustion air is taken from outdoors and flue gases are discharged outdoors. See figure 2 for applications including roof termination.

DIRECT VENT INSTALLATION

COMBUSTION AIR INTAKE OUTSIDE OF HOUSE

SLP98DFV

EXHAUST OUTLET

FIGURE 2

Shipping and Packing List

Package 1 of 1 contains

1 − Assembled SLP98DFV unit

1 − Bag assembly containing the following:

3 − Wire nuts

1 − Snap bushing

1 − Snap plug

1 − Wire tie

1 − Condensate trap

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

The following items may also be ordered separately:

1 − Thermostat

1 − Natural to LP gas conversion kit

1 − High altitude kit

WARNING

CAUTION

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

Use only the type of gas approved for use with this furnace. Refer to unit nameplate.

Building Codes

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/NFPA 54). The National Fuel Gas Code is available from the following address:

American National Standards Institute, Inc. 11 West 42nd Street New York, NY 10036

Installation Locations and Clearances

In Canada, installation must conform with current National Standard of Canada CSA-B149 Natural Gas and Propane Installation Codes, local plumbing or waste water codes and other applicable local codes.

This furnace is designed for installation clearances to combustible material as listed on the unit nameplate and in the table in figure 7. Accessibility and service clearances must take precedence over fire protection clearances.

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 or CSA B149 standard.

NOTE − Furnace must be adjusted to obtain a temperature rise (100% percent capacity) within the range(s) specified on the unit nameplate. Failure to do so may cause erratic limit operation and may also result in premature heat exchanger failure.

This SLP98DFV furnace must be installed so that its electrical components are protected from water.

Page 4

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. 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 (figure 3). 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.

SLP98DFV INSTALLED PARALLEL

WITH COOLING COIL

GAS UNIT

Dampers

(open during heating

operation only)

AIR HANDLER

Dampers

(open during cooling

operation only)

FIGURE 3

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.

In Canada, all electrical wiring and grounding for the unit must be installed according to the current regulations of the Canadian Electrical Code Part I (CSA Standard C22.1) and/or local codes.

CAUTION

Do not set thermostat below 60°F (16°C) in heating mode. Setting thermostat below 60°F (16°C) reduces the number of heating cycles. Damage to the unit may occur that is not covered by the warranty.

The SLP98DFV furnace may be installed in alcoves, closets, attics, basements, garages, and utility rooms.

This furnace is not designed for installation in mobile homes, recreational vehicles, or outdoors.

Never use an open flame to test for gas leaks. Check all connections using a commercially available soap solution made specifically for leak detection.

Use of Furnace as Construction Heater

Lennox does not recommend the use of SLP98DFV units as a construction heater during any phase of construction. Very low return air temperatures, harmful vapors and operation of the unit with clogged or misplaced filters will damage the unit.

SLP98DFV units may be used for heating of buildings or structures under construction, if the following conditions are met:

D The vent system must be permanently installed per

these installation instructions.

D A room thermostat must control the furnace. The use of

fixed jumpers that will provide continuous heating is not allowed.

D The return air duct must be provided and sealed to the

furnace.

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

80°F (27°C) must be maintained.

D Air filters must be installed in the system and must be

maintained during construction.

D Air filters must be replaced upon construction comple-

tion.

D The input rate and temperature rise must be set per the

furnace rating plate.

D One hundred percent (100%) outdoor air must be pro-

vided for combustion air requirements during construction. Temporary ducting may supply outdoor air to the furnace. Do not connect duct directly to the furnace.

D The furnace heat exchanger, components, duct system,

air filters and evaporator coils must be thoroughly cleaned following final construction clean−up.

D All furnace operating conditions (including ignition, in-

put rate, temperature rise and venting) must be verified according to these installation instructions.

Page 5

General

• When the furnace is installed in an unconditioned space, consider provisions required to prevent freezing of condensate drain system.

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.

Lennox Industries Inc. P.O. Box 799900 Dallas, TX 75379−9900

CAUTION

SLP98DFV unit should not be installed in areas normally subject to freezing temperatures.

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 a SLP98DFV furnace:

• 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.

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

Installation − Setting Equipment

WARNING

Do not install the furnace on its front, back or in the horizontal position. See figure 5. 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.

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, condensate trap and drain connections, and installation and service clearances [24 inches (610 mm) at unit front]. The unit must be level from side to side. Unit may

be positioned from level to 1/2" toward the front to aid in draining. See figure 4.

SETTING EQUIPMENT

AIR FLOW

FRONT VIEW SIDE VIEW

Unit must be level side−to−side. Unit may be positioned

from level to 1/2" toward the front to aid in draining.

AIR FLOW

SIDE VIEW

FIGURE 4

AIR FLOW

1/2"

max.

Front

Horizontal

Back

NOTE − Do not install the furnace on its front, back or in the horizontal position.

FIGURE 5

Page 6

NOTE − The 1/2 hp blower motor used in some SLP98DFV unit is equipped with three flexible legs and one rigid leg. 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.

SLP98DF070V36B and

SL98DF090V036C WITH 1/2 HP

BLOWER MOTOR

RIGID LEG

remove shipping bolt and washer

The unit may be installed three ways in downflow applications: on non−combustible flooring, on combustible flooring using a base, or on a reverse−flow cooling coil cabinet. Do

not drag the unit across the floor in the downflow position. Floor and flange damage will result. Refer to figure 7 for clearances in downflow applica-

tions.

Downflow Application Installation Clearances

Top

Left Side Right Side

FIGURE 6

Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or alcove installations are shown in figure 7.

WARNING

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

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 air in the living space. Use sheet metal screws and joint tape to seal return air system to furnace. In platform installations with furnace return, 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. For no reason should return and supply air duct systems ever 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.

Bottom

Top 0

*Front 0

Back 0

Sides 0†

Vent 0

Floor NC‡

*Front clearance in alcove installation must be 24 in. (610 mm). Maintain a minimum of 24 in. (610 mm) for front service access. †Allow proper clearances to accommodate condensate trap and vent pipe installation. ‡The furnace may be installed on a combustible wood floor if an optional base is installed between the furnace and the combustible floor.

FIGURE 7

Installation on Non−Combustible Flooring (Figure 8)

1 − Cut floor opening keeping in mind clearances listed on

unit rating plate. Also keep in mind gas supply connections, electrical supply, flue and air intake connections and sufficient installation and servicing clearances. See table 1 for correct floor opening size.

2 − Flange warm air plenum and lower the plenum into the

opening.

3 − Set the unit over the plenum and seal the plenum to

the unit.

4 − Ensure that the seal is adequate.

Page 7

TABLE 1

NON−COMBUSTIBLE FLOOR OPENING SIZE

Cabinet Width

B Cabinet (17.5") 19 − 3/4 502 16 − 5/8 422

C Cabinet (21") 19 − 3/4 502 20−1/8 511

NOTE − Floor opening dimensions listed are 1/4 inch (6 mm) larger than the unit opening. See dimension drawing on page 2.

SLP98DF UNIT

Front to Rear Side to Side

in. mm in. mm

SLP98DF UNIT

PROPERLY

SIZED FLOOR

OPENING

SUPPLY AIR

PLENUM

COMBUSTIBLE FLOORING BASE

PROPERLY

SIZED FLOOR

OPENING

SUPPLY AIR

PLENUM

FIGURE 8

Installation on Combustible Flooring (Figure 9)

1 − When unit is installed on a combustible floor, a down-

flow combustible flooring base must be installed between the furnace and the floor. The base must be ordered separately. See table 2 for opening size to cut in floor.

CAUTION

The furnace and combustible flooring base shall not be installed directly on carpeting, tile, or other combustible material other than wood flooring.

TABLE 2

COMBUSTIBLE FLOORING BASE OPENING SIZE

Cabinet

Width

B Cabinet

(17.5")

C Cabinet

(21")

Catalog Number

11M60

11M61

Front to Rear Side to Side

in. mm in. mm

22 559 18 − 3/4 476

22 559 22 − 3/4 578

FIGURE 9

2 − After opening is cut, set combustible flooring base into

opening.

3 − Check fiberglass strips on combustible flooring base

to make sure they are properly glued and positioned.

4 − Lower supply air plenum into combustible flooring

base until plenum flanges seal against fiberglass strips.

NOTE − Be careful not to damage fiberglass strips. Check for a tight seal.

5 − Set the furnace over the plenum.

6 − Ensure that the seal between the furnace and plenum

is adequate.

Installation on Cooling Coil Cabinet (Figure 10)

NOTE − Downflow combustible flooring base is not used.

1 − Refer to reverse−flow coil installation instructions for

correctly sized opening in floor and installation of cabinet.

2 − When cooling cabinet is in place, set and secure the

furnace according to the instructions that are provided with the cooling coil. Secure the furnace to the cabinet.

3 − Seal the cabinet and check for air leaks.

Page 8

PROPERLY

SIZED FLOOR

OPENING

FIGURE 10

SLP98DF UNIT

COOLING COIL

PLENUM

(Field Provided)

SECURE FROM

INSIDE CABINET

Side View

SEALING STRIP (Field Provided)

CABINET

SIDE PANEL

FIGURE 12

Filters

This unit is not equipped with a filter or rack. A field−provided filter is required for the unit to operate properly. Table 3 lists recommended filter size. A filter must be in place whenever the unit is operating.

TABLE 3

Furnace

Cabinet Width

Filter Size

Return Air Opening −− Downflow Units

Return air may be brought in only through the top opening of a furnace installed in the downflow position. The following steps should be taken when installing plenum:

1 − Bottom edge of plenum should be flanged with a

hemmed edge (See figure 11 or 12).

2 − Sealing strips should be used to ensure an airtight seal

between the cabinet and the plenum.

3 − In all cases, plenum should be secured to top of fur-

nace using sheet metal screws.

4 − Make certain that an adequate seal is made.

PLENUM

(Field Provided)

SEALING STRIP (Field Provided)

SECURE FROM

OUTSIDE CABINET

CABINET

SIDE PANEL

Side View

FIGURE 11

B Cabinet (17−1/2")

C Cabinet (21−1/2")

16 X 25 X 1 (1)

Duct System

Use industry-approved standards 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 − Operation of this furnace in heating mode (indoor blower operating at selected heating speed) with an external static pressure which exceeds 0.8 inches w.c. may result in erratic limit operation.

Return Air Plenum 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.

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 9

Pipe & Fittings Specifications

All pipe, fittings, primer and solvent cement must conform with American National Standard Institute and the American Society for Testing and Materials (ANSI/ASTM) standards. The solvent shall be free−flowing and contain no lumps, undissolved particles or any foreign matter that adversely affects the joint strength or chemical resistance of the cement. The cement shall show no gelation, stratification, or separation that cannot be removed by stirring. Refer to table 4 for approved piping and fitting materials.

PIPING AND FITTINGS SPECIFICATIONS

Schedule 40 PVC (Pipe) D1785 Schedule 40 PVC (Cellular Core Pipe) F891

Schedule 40 PVC (Fittings) D2466

Schedule 40 CPVC (Pipe) F441

Schedule 40 CPVC (Fittings) F438

SDR−21 PVC or SDR−26 PVC (Pipe) D2241

SDR−21 CPVC or SDR−26 CPVC (Pipe) F442

Schedule 40 ABS Cellular Core DWV (Pipe) F628

Schedule 40 ABS (Pipe) D1527

Schedule 40 ABS (Fittings) D2468

ABS−DWV (Drain Waste & Vent) (Pipe & Fittings)

PVC−DWV (Drain Waste & Vent) Pipe & Fittings)

PRIMER & SOLVENT CEMENT

PVC & CPVC Primer F656 PVC Solvent Cement D2564

CPVC Solvent Cement F493

ABS Solvent Cement D2235

PVC/CPVC/ABS All Purpose Cement For Fittings & Pipe of the same material

ABS to PVC or CPVC Transition Solvent Cement

CANADIAN PIPE, FITTINGS &

SOLVENT CEMENT

PVC & CPVC Pipe and Fittings PVC & CPVC Solvent Cement

ABS to PVC or CPVC Transition Cement

TABLE 4

D2661

D2665

ASTM

SPECIFICATION

D2564, D2235, F493

D3138

MARKING

ULCS636

CAUTION

Solvent cements for plastic pipe are flammable liquids and should be kept away from all sources of ignition. Do not use excessive amounts of solvent cement when making joints. Good ventilation should be maintained to reduce fire hazard and to minimize breathing of solvent vapors. Avoid contact of cement with skin and eyes.

IMPORTANT

SLP98DFV exhaust and intake connections are made of PVC. Use PVC primer and solvent cement when using PVC vent pipe. When using ABS vent pipe, use transitional solvent cement to make connections to the PVC fittings in the unit.

Use PVC primer and solvent cement or ABS solvent cement meeting ASTM specifications, refer to Table 4. As an alternate, use all purpose cement, to bond ABS, PVC, or CPVC pipe when using fittings and pipe made of the same materials. Use transition solvent cement when bonding ABS to either PVC or CPVC.

Low temperature solvent cement is recommended. Metal or plastic strapping may be used for vent pipe hangers. Uniformly apply a liberal coat of PVC primer for PVC

Canadian Applications Only − Pipe, fittings, primer and solvent cement used to vent (exhaust) this appliance must be certified to ULC S636 and supplied by a single manufacturer as part of an approved vent (exhaust) system. In addition, the first three feet of vent pipe from the furnace flue collar must be accessible for inspection.

Table 5 lists the available exhaust termination kits.

Page 10

SLP98DF

UNIT

OUTDOOR TERMINATION KITS USAGE

TABLE 5

STANDARD CONCENTRIC

Outdoor

VENT

PIPE

DIA.

(in.)

2 YES YES YES* YES YES YES

Exhaust

Accelerator

(Dia. X

Length)

1−1/2" X 12" 2" X 12"

Outdoor Exhaust

Accelerator

(Dia. X

Length)

2" Wall Plate

Kit

22G44

or 30G28

3" Wall Plate

Kit

44J40

or 81J20

2" Wall

Ring Kit

15F74 51W11**

FlushMount

Kit

Concentric

44W92

1−1/2"

Kit

71M80

Concentric

Kit

69M29

44W92

Concentric

Kit

60L46

or 44W93

070

090

110

*Requires field−provided and installed 1−1/2" exhaust accelerator. ** Kit 51W11 includes h a 1−1/2" accelerator which must be used for all SLP98DFV−070 and −090 installations.  Termination kits 44W92, 44W93, 30G28 and 81J20 approved for use in Canadian installations.  The 44W92 concentric kit includes a 1−1/2" accelerator which must be installed on the exhaust outlet when this kit is used with the SL98DF070V36B furnaces.

Joint Cementing Procedure

All cementing of joints should be done according to the specifications outlined in ASTM D 2855.

NOTE − A sheet metal screw may be used to secure the intake pipe to the connector, if desired. Use a drill or self tapping screw to make a pilot hole.

2−1/2 YES YES YES* YES YES YES

3 YES YES YES* YES YES YES

2 YES YES YES YES YES YES

2−1/2 YES YES YES YES YES YES

3 YES YES YES YES YES YES

2 YES YES YES YES YES YES

2−1/2 YES YES YES YES YES

3 YES YES YES YES YES

5 − Uniformly apply a liberal coat of PVC primer for PVC or

use a clean dry cloth for ABS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket.

6 − Promptly apply solvent cement to end of pipe and in-

side socket surface of fitting. Cement should be applied lightly but uniformly to inside of socket. Take care to keep excess cement out of socket. Apply second coat to end of pipe.

DANGER

DANGER OF EXPLOSION!

Fumes from PVC glue may ignite during system check. Allow fumes to dissipate for at least 5 minutes before placing unit into operation.

NOTE − Time is critical at this stage. Do not allow primer to dry before applying cement.

7 − Immediately after applying last coat of cement to pipe,

and while both inside socket surface and end of pipe are wet with cement, forcefully insert end of pipe into socket until it bottoms out. Turn PVC pipe 1/4 turn during assembly (but not after pipe is fully inserted) to dis-

1 − Measure and cut vent pipe to desired length.

2 − Debur and chamfer end of pipe, removing any ridges

or rough edges. If end is not chamfered, edge of pipe may remove cement from fitting socket and result in a leaking joint.

3 − Clean and dry surfaces to be joined.

NOTE − Check the inside of vent pipe thoroughly for any obstruction that may alter furnace operation.

4 − Test fit joint and mark depth of fitting on outside of pipe.

tribute cement evenly. DO NOT turn ABS or cellular core pipe.

NOTE − Assembly should be completed within 20 seconds after last application of cement. Hammer blows should not be used when inserting pipe.

8 − After assembly, wipe excess cement from pipe at end

of fitting socket. A properly made joint will show a bead around its entire perimeter. Any gaps may indicate a defective assembly due to insufficient solvent.

9 − Handle joints carefully until completely set.

Page 11

Venting Practices

Piping Suspension Guidelines

SCHEDULE 40 PVC −−

Support every 5 feet.

all other pipe* −−

Support every 3 feet.

* See table 4 for allowable pipe.

NOTE − Isolate piping at the point where it exits the outside wall or roof in order to prevent transmission of vibration to the structure.

Wall Thickness Guidelines

24" maximum 3/4" minimum

1 − In areas where piping penetrates joists or interior

walls, hole must be large enough to allow clearance on all sides of pipe through center of hole using a hanger.

2 − When furnace is installed in a residence where unit is

shut down for an extended period of time, such as a vacation home, make provisions for draining condensate collection trap and lines.

Exhaust Piping (Figure 16)

Route piping to outside of structure. Continue with installation following instructions given in piping termination section.

CAUTION

Do not discharge exhaust into an existing stack or stack that also serves another gas appliance. If vertical discharge through an existing unused stack is required, insert PVC pipe inside the stack until the end is even with the top or outlet end of the metal stack.

inside outside

Wall

FIGURE 13

REPLACING FURNACE THAT WAS PART OF A

CHIMNEY

OR GAS

VENT

(Check sizing

for water

heater only)

FURNACE

(Replaced

by SLP98)

If an SLP98 furnace replaces a furnace which was commonly vented with another gas appliance, the size of the existing vent pipe for that gas appliance must be checked. Without the heat of the original furnace flue products, the existing vent pipe is probably oversized for the single water heater or other appliance. The vent should be checked for proper draw with the remaining appliance.

COMMON VENT SYSTEM

WATER

HEATER

OPENINGS

(To Adjacent

Room)

FIGURE 14

CAUTION

The exhaust vent pipe operates under positive pressure and must be completely sealed to prevent leakage of combustion products into the living space.

Vent Piping Guidelines

The SLP98DFV is installed only as a Direct Vent gas central furnace.

NOTE − In Direct Vent installations, combustion air is taken from outdoors and flue gases are discharged outdoors.

Intake and exhaust pipe sizing −− Size pipe according to

tables 6 and 7. Table 6 lists the minimum vent pipe lengths permitted. Table 7 lists the maximum pipe lengths per- mitted.

Regardless of the diameter of pipe used, the standard roof and wall terminations described in section Exhaust Piping Terminations should be used. Exhaust vent termination pipe is sized to optimize the velocity of the exhaust gas as it exits the termination. Refer to table 9.

In some applications which permit the use of several different sizes of vent pipe, a combination vent pipe may be used. Contact Lennox’ Application Department for assistance in sizing vent pipe in these applications.

15 ft.*

TABLE 6

EXAMPLE

5 ft. plus 2 elbows of 2", 2−1/2"

or 3" diameter pipe

MINIMUM VENT PIPE LENGTHS

SLP98DF

MODEL

070, 090, 110

*Any approved termination may be added to the minimum equivalent length listed.

MIN. EQUIV.

VENT LENGTH

NOTE − It is acceptable to use any pipe size which fits within the guidelines allowed in table 7.

Page 12

NOTE − The exhaust collar on all models is sized to accommodate 2" Schedule 40 vent pipe. Contact the Application Department for more information concerning sizing of vent systems which include multiple pipe sizes.

NOTE − All horizontal runs of exhaust pipe must slope back toward unit. A minimum of 1/4" (6mm) drop for each 12" (305mm) of horizontal run is mandatory for drainage.

NOTE − Exhaust pipe MUST be glued to furnace exhaust fittings.

NOTE − Exhaust piping should be checked carefully to make sure there are no sags or low spots.

Use the following steps to correctly size vent pipe diameter.

Furnace

Capacity?

Which termination?

070, 090, 110

btuh

Standard or Concentric? See table 5

IMPORTANT

Do not use screens or perforated metal in exhaust or intake terminations. Doing so will cause freeze−ups and may block the terminations.

Which needs most elbows?

How many?

Desired pipe size?

What is the altitude?

Use table 7 to find

max intake or

exhaust pipe length.

Intake or exhaust?

2", 2−1/2", 3"

Page 13

FIGURE 15

Maximum Allowable Intake or Exhaust Vent Length in Feet

TABLE 7

*Size intake and exhaust pipe length separately. Values in table are for Intake OR Exhaust, not combined total. Both Intake and Exhaust must be same pipe size.

Standard Termination at Elevation 0 − 4500’

Number Of

90° Elbows

Used

1 91 69 14 140 93 43 162 143 11 8

2 86 64 9 135 88 38 157 138 11 3 3 81 59 4 76 54 125 78 28 147 128 103 5 71 49 120 73 23 142 123 98 6 66 44 115 68 18 137 118 93 7 61 39 110 63 13 132 113 88 8 56 34 105 58 9 51 29 100 53 122 103 78

10 46 24 95 48 117 98 73

Number Of

90° Elbows

Used

1 66 69 14 115 93 43 137 143 11 8

2 61 64 9 110 88 38 132 138 11 3 3 56 59 4 51 54 100 78 28 122 128 103 5 46 49 95 73 23 117 123 98 6 41 44 90 68 18 112 118 93 7 36 39 85 63 13 107 113 88 8 31 34 80 58 9 26 29 75 53 97 103 78

10 21 24 70 48 92 98 73

Number Of

90° Elbows

Used

1 41 44 2 36 39 85 63 107 113 88 3 31 34 80 58 102 108 83 4 26 29 75 53 97 103 78 5 21 24 70 48 92 98 73 6 16 19 65 43 87 93 68 7 11 14 60 38 82 88 63

9 50 28 72 78 53

10 45 23 67 73 48

070 090 110 070 090 110 070 090 110

070 090 11 0 070 090 110 070 090 110

n/a

2" Pipe 2−1/2" Pipe 3" Pipe

Model Model Model

130 83 33 152 133 108

n/a

127 108 83

n/a

Standard Termination Elevation 4501’ − 7500’

2" Pipe 2−1/2" Pipe 3" Pipe

Model Model Model

105 83 33 127 133 108

n/a

102 108 83

n/a

Standard Terminatiuon at Elevation 7501’ − 10,000’’

2" Pipe 2−1/2" Pipe 3" Pipe

Model Model Model

n/a

90 68

n/a

55 33 77 83 58

112 11 8 93

NOTE − Table 7 continued on next page with concentric terminations.

Page 14

TABLE 7

Maximum Allowable Intake or Exhaust Vent Length in Feet

*Size intake and exhaust pipe length separately. Values in table are for Intake OR Exhaust, not combined total. Both Intake and Exhaust must be same pipe size.

Concentric Termination at Elevation 0 − 4500’

Number Of

90° Elbows

Used

1 83 67 12 130 89 39 146 139 11 4

2 78 62 7 125 84 34 141 134 109 3 73 57 4 68 52 115 74 24 131 124 99 5 63 47 110 69 19 126 119 94 6 58 42 105 64 14 121 114 89 7 53 37 100 59 8 48 32 95 54 111 104 79 9 43 27 90 49 106 99 74

10 38 22 85 44 101 94 69

Number Of

90° Elbows

Used

1 58 67 12 105 89 39 121 114 11 4

2 53 62 7 100 84 34 11 6 109 109 3 48 57 4 43 52 90 74 24 106 99 99 5 38 47 85 69 19 101 94 94 6 33 42 80 64 14 96 89 89 7 28 37 75 59 8 23 32 70 54 86 79 79 9 18 27 65 49 81 74 74

10 13 22 60 44 76 69 69

Number Of

90° Elbows

Used

1 33 42 2 28 37 75 59 91 109 84 3 23 32 70 54 86 104 79 4 18 27 65 49 81 99 74 5 13 22 60 44 76 94 69 6 7 12 50 34 66 84 59

9 40 24 56 74 49

10 35 19 51 69 44

070 090 11 0 070 090 110 070 090 11 0

070 090 11 0 070 090 110 070 090 110

n/a

2" Pipe 2−1/2" Pipe 3" Pipe

Model Model Model

120 79 29 136 129 104

n/a

Concentric Termination Elevation 4501’ − 7500’

2" Pipe 2−1/2" Pipe 3" Pipe

Model Model Model

95 79 29 111 104 104

n/a

Concentric Terminatioin at Elevation 7501’ − 10,000’’

2" Pipe 2−1/2" Pipe 3" Pipe

Model Model Model

80 64

17 55 39 71 89 64

n/a

45 29 61 79 54

n/a

116 109 84

91 84 84

96 11 4 89

Page 15

TYPICAL EXHAUST PIPE CONNECTIONS AND CONDENSATE TRAP INSTALLATION

TRAP

2”

DO NOT transition from smaller to larger pipe size in horizontal

3”

TRANSITION

*2“

Use only the factory−supplied

trap. Trap can be installed on

either side of cabinet within 5 ft.

of the furnace.

* When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible.

NOTE − Exhaust pipe and intake pipe must be the same diameter.

runs of exhaust pipe.

Air Intake

FIGURE 16

TYPICAL AIR INTAKE PIPE CONNECTIONS

2”

Exhaust

TOP VIEW

TRAP

TRANSITION

*2”

Use only the factory−supplied

trap. Trap can be installed on

either side of cabinet within 5 ft.

of the furnace.

* When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible.

NOTE − Intake pipe and exhaust pipe must be the same diameter.

3”

TRANSITION

*2”

Air Intake

FIGURE 17

Exhaust

TOP VIEW

Page 16

VENT TERMINATION CLEARANCES

FOR DIRECT VENT INSTALLATIONS IN THE USA AND CANADA

INSIDE CORNER

DETAIL

Fixed

Closed

Operable

VENT TERMINAL

AIR SUPPLY INLET

US Installations

A =

B =

Clearance above grade, veranda,

porch, deck or balcony

Clearance to window or

door that may be opened

12 inches (305mm) or 12 in. 305mm)

above average snow accumulation.

6 inches (152mm) for appliances <10,000

Btuh (3kw), 9 inches (mm) for appliances

> 10,000 Btuh (3kw) and <50,000 Btuh

(15 kw), 12 inches (305mm) for ap-

pliances > 50,000 Btuh (15kw)

C =

Clearance to permanently

closed window

D =

Vertical clearance to ventilated soffit

located above the terminal within a

* Equal to or greater than soffit depth

horizontal distance of 2 feet (mm)

from the center line of the terminal

E =

F =

G =

H =

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line ex-

tended above meter / regulator assembly

I =

Clearance to service regulator

vent outlet

J =

Clearance to non−mechanical air

supply inlet to building or the com-

bustion air inlet to any other ap-

pliance

* Equal to or greater than soffit depth * Equal to or greater than soffit depth

* No minimum to outside corner

3 feet (.9m) within a height 15 feet (4.5m)

above the meter / regulator assembly

3 feet (.9m)

6 inches (152mm) for appliances <10,000

Btuh (3kw), 9 inches (mm) for appliances

> 10,000 Btuh (3kw) and <50,000 Btuh

(15 kw), 12 inches (305mm) for ap-

pliances > 50,000 Btuh (15kw)

K =

L =

M =

 A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.

 Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Lennox recommends avoiding this location if possible.

Clearance to mechanical air sup-

ply inlet

Clearance above paved sidewalk or

paved driveway located on public property

Clearance under veranda, porch,

deck or balcony

In accordance with the current ANSI Z223.1/NFPA 54 Natural Fuel Gas Code

In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code

3 feet (.9m) above if within 10 feet

(3m) horizontally

* 7 feet (2.1m)

*12 inches (305mm)

FIGURE 18

Operable

Fixed

Closed

AREA WHERE TERMINAL IS NOT PERMITTED

Canadian Installations

12 inches (305mm) or 12 in. 305mm)

above average snow accumulation.

6 inches (152mm) for appliances <10,000

Btuh (3kw), 12 inches (305mm) for

appliances > 10,000 Btuh (3kw) and

<100,000 Btuh (30kw), 36 inches (.9m)

for appliances > 100,000 Btuh (30kw)

* 12"

* Equal to or greater than soffit depth* Equal to or greater than soffit depth

* No minimum to outside corner

3 feet (.9m) within a height 15 feet (4.5m)

above the meter / regulator assembly

3 feet (.9m)

6 inches (152mm) for appliances <10,000

Btuh (3kw), 12 inches (305mm) for

appliances > 10,000 Btuh (3kw) and

<100,000 Btuh (30kw), 36 inches (.9m)

for appliances > 100,000 Btuh (30kw)

6 feet (1.8m)

7 feet (2.1m)

12 inches (305mm)

*For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearance will be in accordance with local installation codes and the requirements of the gas supplier and these installation instructions."

Page 17

Details of Intake and Exhaust Piping Terminations for Direct Vent Installations

NOTE − In Direct Vent installations, combustion air is taken from outdoors and flue gases are discharged to outdoors.

NOTE − Flue gas may be slightly acidic and may adversely affect some building materials. If any vent termination is used and the flue gasses may impinge on the building material, a corrosion−resistant shield (minimum 24 inches square) should be used to protect the wall surface. If the optional tee is used, the protective shield is recommended. The shield should be constructed using wood, plastic, sheet metal or other suitable material. All seams, joints, cracks, etc. in the affected area should be sealed using an appropriate sealant. See figure 21.

Intake and exhaust pipes may be routed either horizontally through an outside wall or vertically through the roof. In attic or closet installations, vertical termination through the roof is preferred. Figures 19 through 28 show typical terminations.

1 − Exhaust and intake exits must be in same pressure

zone. Do not exit one through the roof and one on the side. Also, do not exit the intake on one side and the exhaust on another side of the house or structure.

2 − Intake and exhaust pipes should be placed as close

together as possible at termination end (refer to illustrations). Maximum separation is 3" (76mm) on roof terminations and 6" (152mm) on side wall terminations.

3 − On roof terminations, the intake piping should termi-

nate straight down using two 90° elbows (See figure

19).

4 − Exhaust piping must terminate straight out or up as

shown. A reducer may be required on the exhaust piping at the point where it exits the structure to improve the velocity of exhaust away from the intake piping. See table 9.

NOTE − Care must be taken to avoid recirculation of exhaust back into intake pipe.

Inches(mm)

8" (203mm) MIN

12" (305mm) ABOVE

AVERAGE SNOW

ACCUMULATION

3" (76mm) OR

2" (51mm) PVC

PROVIDE SUPPORT

FOR INTAKE AND

EXHAUST LINES

DIRECT VENT ROOF TERMINATION KIT

3"(76mm) MAX.

(15F75 or 44J41)

SIZE TERMINATION PIPE PER TABLE 9.

UNCONDITIONED

ATTIC SPACE

1/2" (13mm) FOAM

INSULATION IN

UNCONDITIONED

SPACE

FIGURE 19

FIELD−SUPPLIED WALL TERMINATION OR

(15F74) WALL RING TERMINATION KIT

NOTE − FIELD−PROVIDED

REDUCER MAY BE

REQUIRED TO ADAPT

LARGER VENT PIPE SIZE

TO TERMINATION.

1/2" (13mm) ARMAFLEX

INSULATION IN

UNCONDITIONED SPACE

SIZE TERMINATION

PER TABLE 9

1/2" (13mm) ARMAFLEX INSULATION

IN UNCONDITIONED SPACE

STRAIGHT

APPPLICATION

* WALL

SUPPORT

EXTENDED

APPLICATION

See venting table 7 for maximum venting lengths with this arrangement.

* Use wall support every 24" (610 mm). Use two wall supports if extension is greater than 24" (610 mm) but less than 48" (1219 mm). NOTE − One wall support must be 6" (152 mm) from top of each pipe (intake and exhaust).

A−Minimum clearance

above grade or average

snow accumulation

B−Maximum horizontal

separation between

intake and exhaust

C−Minimum from

end of exhaust to

inlet of intake

D−Maximum exhaust

pipe length

E−Maximum wall support

distance from top of each

pipe (intake/exhaust)

2" (51mm)

Vent Pipe

12" (508MM) 12" (508MM)

6" (152MM) 6" (152MM)

8" (203MM) 8" (203MM)

12" (305MM) 20" (508MM)

6" (152MM) 6" (152MM)

3" (76mm)

Vent Pipe

FIGURE 20

Page 18

Intake

Exhaust

Front View of

Intake and Exhaust

Intake

Exhaust

TABLE 8

12"

A− Clearance above

grade or average snow

accumulation

B−Horizontal

separation between

intake and exhaust

C−Minimum from

end of exhaust to

inlet of intake

D−Exhaust pipe length

E−Wall support distance

from top of each pipe

(intake/exhaust)

2" (51mm)

Vent Pipe

12" (508MM) Min.

6" (152MM) Min.

24" (610 MM) Max

9" (227MM) Min.

12" (305MM) Min. 16" (405 MM) Max.

6" (152MM) Max.

3" (76mm)

Vent Pipe

12" (508MM) Min.

6" (152MM) Min.

24" (610 MM) Max

9" (227MM) Min.

12" (305MM) Min. 20" (508MM) Max.

6" (152MM) Max.

not use an accelerator in applications that include an exhaust termination tee. The accelerator is not required.

termination is used and flue gases will impinge on the building materials, a corrosion−resistant shield (24 inches square) should be used to protect the wall surface. If optional tee is used, the protective shield is recommended. The shield should be constructed using wood, sheet metal or other suitable material. All seams, joints, cracks, etc. in affected area, should be sealed using an appropriate sealant.

Exhaust pipe 45° elbow can be rotated to the side away from the combustion air inlet to direct exhaust away

from adjacent property. The exhaust must never be directed toward the combustion air inlet.

NOTE − See unit installation instructions for proper exhaust pipe termination size reduction.

The exhaust termination tee should be connected to the 2" or 3" PVC flue pipe as shown in the illustration. Do

As required. Flue gas may be acidic and may adversely affect some building materials. If a side wall vent

FIGURE 21

Page 19

FIELD−SUPPLIED WALL TERMINATION OR

(15F74) WALL RING TERMINATION KIT

With INTAKE ELBOW

NOTE − FIELD−PROVIDED

REDUCER MAY BE

REQUIRED TO ADAPT

LARGER VENT PIPE SIZE

TO TERMINATION.

1/2" (13mm) ARMAFLEX

INSULATION IN UN-

CONDITIONED SPACE

SIZE TERMINATION

PER TABLE 9

* WALL

SUPPORT

1/2" (13mm) ARMAFLEX INSULATION

IN UNCONDITIONED SPACE

STRAIGHT

APPPLICATION

See venting table 7 for maximum venting lengths with this arrangement.

EXTENDED

APPLICATION

EXHAUST PIPE TERMINATION SIZE REDUCTION

SLP98DFV

MODEL

*070 2", 2−1/2" or 3" 1−1/2" *090 2", 2−1/2" or 3" 2"

110 2", 2−1/2" or 3" 2"

Exhaust Pipe Size Termination Pipe Size

*SLP98DF −070 and −090 units with the flush−mount termination must use the 1−1/2" accelerator supplied with the kit.

5 − On field−supplied terminations for side wall exit, ex-

haust piping may extend a maximum of 12 inches (305mm) for 2" PVC and 20 inches (508mm) for 3" (76mm) PVC beyond the outside wall. Intake piping should be as short as possible. See figures 20 and 22.

6 − On field−supplied terminations, a minimum distance

between the end of the exhaust pipe and the end of the intake pipe without a termination elbow is 8" and a minimum distance of 6" with a termination elbow. See figures 20 and 22.

7 − If intake and exhaust piping must be run up a side wall

to position above snow accumulation or other obstructions, piping must be supported every 24" (610mm) as shown in figures 20 and 22. In addition, close−coupled wall termination kits must be extended for use in this application. See figures 30 and 31. When exhaust and intake piping must be run up an outside wall, the exhaust piping must be terminated with pipe sized per table 9.The intake piping may be equipped with a 90° turndown elbow. Using a turndown elbow will add 5 feet (1.5m) to the equivalent length of the pipe.

8 − Based on the recommendation of the manufacturer, a

multiple−furnace installation may use a group of up to four terminations assembled together horizontally, as shown in figure 25.

TABLE 9

A−Minimum clearance

above grade or average

snow accumulation

B−Maximum horizontal

separation between

intake and exhaust

C−Minimum from

end of exhaust to

inlet of intake

D−Maximum exhaust

pipe length

E−Maximum wall support

distance from top of each

pipe (intake/exhaust)

2" (51mm)

Vent Pipe

12" (508MM) 12" (508MM)

6" (152MM) 6" (152MM)

6" (152MM)

12" (305MM) 20" (508MM)

6" (152MM) 6" (152MM)

3" (76mm)

Vent Pipe

6" (152MM)

FIGURE 22

Page 20

1−1/2" (38mm) accelerator

provided on 71M80 &

44W92 kits for

SLP98DFV−36B−070

12” (305mm)

Minimum

Above Average

Snow

Accumulation

CLAMP

DIRECT VENT CONCENTRIC ROOFTOP TERMINATION

71M80, 69M29 or 60L46 (US)

41W92 or 41W93 (Canada)

INTAKE

SHEET METAL STRAP

(Clamp and sheet metal strap must be field installed to support the weight of the termination kit.)

REDUCER MAY BE REQUIRED

PIPE SIZE TO TERMINATION

FLASHING

(Not Furnished)

FIELD−PROVIDED

TO ADAPT LARGER VENT

FIGURE 23

FIELD−PROVIDED

REDUCER MAY BE RE-

QUIRED TO ADAPT

LARGER VENT PIPE

SIZE TO TERMINATION.

EXHAUST

AIR

INTAKE

AIR

(Not Furnished)

OUTSIDE

WALL

CLAMP

1−1/2" (38mm) accelerator

provided on 71M80 &

44W92 kits for

SL98DF070V36B

INTAKE

AIR

EXHAUST

12" (305mm) Min.

INTAKE

AIR

above grade or average snow

accumulation.

GRADE

DIRECT VENT CONCENTRIC WALL TERMINATION

71M80, 69M29 or 60L46 (US)

44W92 or 44W93 (Canada)

FIGURE 24

EXHAUST

VENT

(127mm)

INTAKE

AIR

18" MAX.

(457mm)

EXHAUST VENT

Inches (mm)

INTAKE

AIR

optional intake elbow

Side View

OPTIONAL VENT TERMINATION FOR MULTIPLE UNIT

INSTALLATION OF DIRECT VENT WALL TERMINATION KIT

(22G44, 44J40, 30G28 or 81J20)

12"

(305mm)

5−1/2"

(140mm)

Front View

12" (305mm) Min.

above grade or

average snow ac-

cumulation.

FIGURE 25

AIR

Front View

EXHAUST VENT

INTAKE

AIR

Top View

1/2" (13mm) Foam Insulation

in Unconditioned Space

FIELD−PROVIDED

REDUCER MAY BE

REQUIRED TO

ADAPT LARGER

VENT PIPE SIZE

TO TERMINATION

DIRECT VENT WALL TERMINATION KIT

(22G44 or 44J40)

FIGURE 27

SLP98 DIRECT VENT APPLICATION

USING EXISTING CHIMNEY

3" − 8" (76mm− 203mm)

Minimum 12" (305MM)

above chimney top

plate or average snow

accumulation

8" − 12"

(203mm − 305mm)

INSULATE

TO FORM

INTAKE PIPE

INSULATION (optional)

SHEET

METAL TOP

PLATE

SEAL

SIZE

TERMINATION

PIPE PER

TABLE 9.

EXHAUST VENT

INTAKE AIR

8" (206mm) MIN.

OUTSIDE WALL

STRAIGHT−CUT OR

ANGLE−CUT IN DIRECTION

OF ROOF SLOPE *

EXHAUST VENT

1/2" (13mm)

WEATHERPROOF

INSULATION

SHOULDER OF FITTINGS

PROVIDE SUPPORT

OF PIPE ON TOP PLATE

3" − 8"

(76mm−

203mm)

ALTERNATE

INTAKE PIPE

EXTERIOR

PORTION OF

CHIMNEY

Front View

INTAKE

AIR

Top View

1/2" (13mm) Foam Insulation

in Unconditioned Space

FIELD−PROVIDED

REDUCER MAY BE

REQUIRED TO

ADAPT LARGER

VENT PIPE SIZE

TO TERMINATION.

DIRECT VENT WALL TERMINATION KIT

(30G28 or 81J20)

FIGURE 26

EXHAUST VENT

SIZE

TERMINATION

PIPE PER

TABLE 9.

EXHAUST VENT

INTAKE AIR

6 (152mm) MIN.

OUTSIDE WALL

Page 21

*SIZE TERMINATION

PIPE PER TABLE 9.

NOTE − Do not discharge exhaust gases directly into any chimney or vent stack. If vertical discharge through an existing unused chimney or stack is required, insert piping inside chimney until the pipe open end is above top of chimney and terminate as illustrated. In any exterior portion of chimney, the exhaust vent must be insulated.

FIGURE 28

2" EXTENSION FOR 2" PVC PIPE 1" EXTENSION FOR 3" PVC PIPE

4’’

FURNACE

INTAKE

PIPE

FLUSH−MOUNT SIDE WALL TERMINATION KIT 51W11

FURNACE EXHAUST

PIPE

GLUE EXHAUST

END FLUSH INTO

TERMINATION

1−1/2" ACCELERATOR

(all −070 and −090 units)

FIGURE 29

WALL TERMINATION KITS (CLOSE−COUPLE)

EXTENDED VENT FOR GRADE CLEARANCE

If intake and exhaust pipe is less than 12 in. (305 mm) above snow accumulation or other obstructions, field−fabricated piping must be installed.

8” (203 mm) min. for 2” (51 mm) & 3” (76 mm) dia. pipe

WALL SUPPORT*

6” (152 mm)

Maximum

INTAKE

AIR

between the end of the exhaust pipe and intake pipe. 12” (305 mm) max. for 2” (51 mm) dia. exhaust 20” (508 mm) max. for 3” (76 mm) dia. exhaust

8” (203 mm) Min.

12” (305 mm) Max. for 2” (51 mm) Dia. Exhaust 20” (508 mm) Max. for 3” (76 mm) Dia. Exhaust

2 inch (51 mm) 22G44 (US)

3 inch (76 mm) 44J40 (US)

EXHAUST

AIR

INTAKE

5” (127 mm)

12” (305 mm) Minimum

Above Grade or Average

Snow Accumulation

GRADE

*Use wall support every 24" (610). Use two supports if

extension is greater than 24" but less than 48".

AIR

REDUCER MAY BE REQUIRED TO ADAPT

LARGER VENT PIPE SIZE TO TERMINATION

FIELD−PROVIDED

12”

(305 mm)

1/2” (13 mm)

FOAM INSULATION

(Field−Furnished)

EXHAUST

AIR

12” (305 mm) Minimum

5−1/2”

(140 mm)

Above Grade or Average

Snow Accumulation

GRADE

WALL TERMINATION KITS (CLOSE−COUPLE)

EXTENDED VENT FOR GRADE CLEARANCE

2 inch (51 mm) 30G28 (WTK Canada) 3 inch (76 mm) 81J20 (WTK Canada)

See installation instructions for additional information.

If intake and exhaust pipe is less than 12 in. (305 mm) above snow accumulation or other obstructions, field−fabricated piping must be installed.

WALL SUPPORT*

6” (152 mm)

Maximum

INTAKE

AIR

12” (305 mm) max. for 2” (51 mm) dia. exhaust 20” (508 mm) max. for 3” (76 mm) dia. exhaust

6” (152 mm)

Minimum

6” (152 mm)

Minimum

FIGURE 30

EXHAUST

AIR

12” (305 mm) Minimum

Above Grade or Average

Snow Accumulation

GRADE

REDUCER MAY BE REQUIRED TO ADAPT

LARGER VENT PIPE SIZE TO TERMINATION

FIELD−PROVIDED

12”

(305 mm)

INTAKE

AIR

5” (127 mm)

5−1/2”

(140 mm)

1/2” (13 mm)

FOAM INSULATION

(Field Furnished)

EXHAUST

AIR

12” (305 mm) Minimum

Above Grade or Average

Snow Accumulation

GRADE

12” (305 mm) max. for 2” (51 mm) dia. exhaust 20” (508 mm) max. for 3” (76 mm) dia. exhaust

FIGURE 31

Page 22

*Use wall support every 24" (610). Use two supports if

extension is greater than 24" but less than 48".

Condensate Piping

This unit is designed for either right- or left-side exit of condensate piping. Refer to figure 32 for condensate trap locations.

NOTE − If necessary the condensate trap may be installed up to 5 feet away from the furnace. Piping from furnace must slope down a minimum of 1/4" per ft. toward trap.

NOTE − Vinyl tubing may be used for condensate drain. Tubing must be 1−1/4" OD X 1" ID and should be attached to the drain on the trap using a hose clamp.

CONDENSATE TRAP AND PLUG LOCATION

(shown with left side exit of condensation)

3 − Install drain trap using appropriate PVC fittings, glue

all joints. Glue the provided drain trap as shown in figure 34. Route the condensate line to an open drain.

4 − If unit will be started immediately upon completion of

installation, prime trap per procedure outlined in Unit Start−Up section.

Condensate line must be sloped downward away from condensate trap to drain. If drain level is above condensate trap, condensate pump must be used. Condensate drain line should be routed within the conditioned space to avoid freezing of condensate and blockage of drain line. If this is not possible, a heat cable kit may be used on the condensate trap and line. Heating cable kit is available from Lennox in various lengths; 6 ft. (1.8m) − kit no. 26K68; 24 ft. (7.3m) − kit no. 26K69; and 50 ft. (15.2m) − kit no. 26K70.

CAUTION

Do not use copper tubing or existing copper condensate lines for drain line.

1−1/2 in.

(same other right side)

Trap

Plug

(same on left side)

FIGURE 32

1 − Determine which side condensate piping will exit the

unit, location of trap, field−provided fittings and length of PVC pipe required to reach available drain.

2 − Remove plug (figure 32) from the cold end header box

at the appropriate location on the side of the unit. Install 1/2 NPT male field provided fitting into cold end header box. Do Not Over Tighten. Use teflon tape or ap- propriate pipe dope.

CONDENSATE TRAP LOCATION

(shown with right side exit of condensation)

Field−Provided Vent

min. 1" Above

Condensate Drain

Trap Can Be Installed a

Maximum Of 5’ From Furnace

1" min.

(PVC Only)

*5’ max.

to drain

*Piping from furnace must slope down a minimum of 1/4" per ft. toward trap.

FIGURE 33

Page 23

TRAP / DRAIN ASSEMBLY USING 1/2" PVC OR 3/4" PVC

OPTIONAL Condensate Drain Connection

Adapter 1/2 inch slip X

1/2 inch mpt (Not Furnished)

90° Street Elbow

1/2 inch PVC

(Not Furnished)

1/2 inch mpt (Not Furnished)

1 (25) Minimum

Above Top of Condensate Drain

Connection In Unit

Adapter 1/2 inch slip X

Vent

5 Feet

Maximum

Condensate Drain

Connection In Unit

Condensate Drain

Connection In Unit

Drain Assembly for 1/2 inch Drain Pipe

90° Street Elbow

1/2 inch PVC

Drain

Drain Assembly for 3/4 inch Drain Pipe

3/4 inch PVC

(Not Furnished)

Drain

OPTIONAL Drain Piping

(furnished)

90° Elbow

90° Elbow 1/2 inch PVC

1/2 inch PVC Pipe

(Not Furnished)

90° Elbow

1/2 inch PVC

(Not Furnished)

Drain

90° Elbow

3/4 inch PVC

(Not Furnished)

Coupling 3/4 inch slip X slip

Drain

(Not Furnished)

1/2 inch PVC Pipe

(Not Furnished)

1/2 inch PVC Pipe

(Not Furnished)

Coupling 1/2 inch slip X slip

(Not Furnished)

Drain Trap

Assembly

(Furnished)

Drain Trap

Clean Out

Drain Trap Assembly

(Furnished)

(178)

Drain Trap Assembly with 1/2 inch Piping

1 inch (25mm) Minimum Above Top of

Condensate Drain Connection In Unit

Vent

Condensate Drain

Connection In Unit

Drain

FIGURE 34

Page 24

Drain Trap Assembly with 3/4 inch Piping

1 inch (25mm) Minimum Above Top of

Condensate Drain Connection In Unit

Vent

Condensate Drain

Connection In Unit

Drain

CAUTION

A separate drain line must be run to the drain from the condensate trap to ensure proper drainage and pressure switch operation. DO NOT connect the condensate trap drain into the drain line from the evaporator coil.

SL98DFV with Evaporator Coil

Field−Provided Vent

Condensate trap and

evaporator coil must drain

separately as shown.

4 − Piping should be sloped 1/4 inch per 15 feet (6mm per

5.6m) upward toward the gas meter from the furnace. The piping must be supported at proper intervals, every 8 to 10 feet (2.44 to 3.05m), using suitable hangers or straps. Install a drip leg in vertical pipe runs to serve as a trap for sediment or condensate.

5 − A 1/8" N.P.T. plugged tap or pressure post is located on

the gas valve to facilitate test gauge connection. See figures 45.

6 − In some localities, codes may require installation of a

manual main shut-off valve and union (furnished by installer) external to the unit. 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.

Drain

FIGURE 35

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.

WARNING

Do not exceed 600 in−lbs (50 ft.−lbs) torque when attaching the gas piping to the gas valve.

1 − Gas piping may be routed into the unit through either

the left- or right-hand side. Supply piping enters into the gas valve from the side of the valve as shown in figure 37.

2 − When connecting gas supply, factors such as length of

run, number of fittings and furnace rating must be considered to avoid excessive pressure drop. Table 10 lists recommended pipe sizes for typical applications.

NOTE − Use two wrenches when connecting gas piping to avoid transferring torque to the manifold.

3 − Gas piping must not run in or through air ducts, clothes

chutes, chimneys or gas vents, dumb waiters or elevator shafts. Center gas line through piping hole. Gas line should not touch side of unit. See figure 37.

MANUAL MAIN SHUT−OFF

VALVE WILL NOT HOLD

NORMAL TEST PRESSURE

1/8" N.P.T.

PLUGGED

TAP

CAP

FIGURE 36

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.

The furnace must be isolated from the gas supply system by closing its individual manual shut-off valve 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.).

FURNACE

ISOLATE

GAS VALVE

IMPORTANT

When testing gas lines using pressures in excess of 1/2 psig (3.48 kPa), gas valve must be disconnected and isolated. See figure 36. Gas valves can be damaged if subjected to pressures greater than 1/2 psig (3.48 kPa).

WARNING

Failure to follow the safety warnings exactly could result in serious injury, death, or property damage. Never use an open flame to test for gas leaks. Check all connections using a commercially available soap solution made specifically for leak detection. Some soaps used for leak detection are corrosive to certain metals. Carefully rinse piping thoroughly after leak test has been completed.

FIRE OR EXPLOSION HAZARD

Page 25

MANUAL

MAIN SHUT−OFF

VALV E

(1/8 in. NPT

plugged tap shown)

GROUND

JOINT

UNION

Left Side Piping

(Standard)

AUTOMATIC

GAS VALVE

(with manual

shut−off valve)

AUTOMATIC

GAS VALVE

(with manual

shut−off valve)

MANUAL

MAIN SHUT−OFF

VALV E (1/8 in. NPT plugged tap

shown)

GROUND

JOINT

UNION

DRIP LEG

Right Side Piping

DRIP LEG

FIELD

PROVIDED

AND INSTALLED

NOTE − BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET

FIGURE 37

TABLE 10

GAS PIPE CAPACITY − FT3/HR (kL/HR)

Nominal

Iron Pipe Size

−Inches(mm)

1/2

(12.7)

3/4

(19.05)

(25.4)

1−1/4

(31.75)

1−1/2

(38.1)

(50.8)

2−1/2

(63.5)

(76.2)

(101.6)

Internal

Diameter

−Inches(mm)

.622

(17.799)

.824

(20.930)

1.049

(26.645)

1.380

(35.052)

1.610

(40.894)

2.067

(52.502)

2.469

(67.713)

3.068

(77.927)

4.026

(102.260)

(3.048)20(6.096)30(9.144)40(12.192)50(15.240)60(18.288)70(21.336)80(24.384)90(27.432)

175

(4.96)

360

(10.19)

680

(19.25)

1400

(39.64)

2100

(59.46)

3950

(111.85)

6300

(178.39)

11000

(311.48)

23000

(651.27)

120

(3.40)

250

(7.08)

465

(13.17)

950

(26.90)

460

(41.34)

2750

(77.87)

4350

(123.17)

7700

(218.03)

15800

(447.39)

(2.75)

200

(5.66)

375

(10.62)

770

(21.80)

1180

(33.41)

2200

(62.30)

3520

(99.67)

6250

(176.98)

12800

(362.44)

NOTE − Capacity given in cubic feet of gas per hour (kilo liters of gas per hour) and based on 0.60 specific gravity gas.

Length of Pipe−Feet(m)

(2.32)

170

(4.81)

320

(9.06)

660

(18.69)

990

(28.03)

1900

(53.80)

3000

(84.95)

5300

(150.07)

10900

(308.64)

(2.07)

151

(4.28)

285

(8.07)

580

(16.42)

900

(25.48)

1680

(47.57)

2650

(75.04)

4750

(134.50)

9700

(274.67)

(1.87)

138

(3.91)

260

(7.36)

530

(15.01)

810

(22.94)

1520

(43.04)

2400

(67.96)

4300

(121.76)

8800

(249.18)

(1.73)

125

(3.54)

240

(6.80)

490

(13.87)

750

(21.24)

1400

(39.64)

2250

(63.71)

3900

(110.43)

8100

(229.36)

Removal of the Furnace from Common Vent

WARNING

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.

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:

(Alternate)

(1.61)

118

(3.34)

220

(6.23)

460

(13.03)

690

(19.54)

1300

(36.81)

2050

(58.05)

3700

(104.77)

7500

(212.37)

(1.50)

110

(3.11)

205

(5.80)

430

(12.18)

650

(18.41)

1220

(34.55)

1950

(55.22)

3450

(97.69)

7200

(203.88)

100

(30.480)

(1.42)

103

(2.92)

195

(5.52)

400

(11.33)

620

(17.56)

1150

(32.56)

1850

(52.38)

3250

(92.03)

6700

(189.72)

Page 26

1 − Seal any unused openings in the common venting sys-

tem.

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 be-

tween 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 main burner has 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 preced-

ing 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 Z223.1.

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.

INTERIOR MAKE−UP BOX

(FACTORY− INSTALLED LEFT SIDE)

MAKE−UP

Left side

BOX INSIDE

CABINET

FIGURE 38

EXTERIOR MAKE−UP BOX

(FIELD PROVIDED RIGHT SIDE)

MAKE−UP

BOX OUTSIDE CABINET

Right Side

FIGURE 39

The unit is equipped with a make−up box on the left hand side of the cabinet. A field−provided make−up box can be installed on the exterior of 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 and install on the outside of the cabinet. See figure 39. The excess wire must be pulled into the blower compartment. Secure the excess wire to the existing harness to protect it from damage.

Refer to figure 40 for unit field wiring. See figures 41 and 42 for icomfort Touch thermostat wiring in communicating applications. Table 14 shows DIP switch and on−board link settings for non−communicating thermostat applications. Typical wiring schematic is shown in figure 43.

Page 27

1 − The power supply wiring must meet Class I restric-

tions. 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. See table for maximum over−current protection.

TABLE 11

SLP98DF Model

07036B, 09036C, 09048C 15

09060C, 11060C 20

Maximum Over−Current

Protection (Amps)

2 − Holes are on both sides of the furnace cabinet to facili-

tate wiring.

3 − Install a separate (properly sized) disconnect switch

near the furnace so that power can be turned off for servicing.

4 − Before connecting the thermostat or the power wiring,

check to make sure the wires will be long enough for servicing at a later date. Remove the blower access panel to check the length of the wire.

5 − Complete the wiring connections to the equipment.

Use the provided unit wiring diagram and the field wiring diagram shown in figure 40 and table 14. Use 18−gauge wire or larger that is suitable for Class II rating for thermostat connections.

NOTE − Do NOT make a wire connection between the room thermostat L terminal and the L terminal of the SLP98DFV integrated control unless this is a communicating thermostat installation with a non− communicating outdoor unit.

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) for the USA and current Canadian Electric Code part 1 (CSA standard C22.1) for Canada. A green ground wire is provided in the field make−up box.

7 − One line voltage EAC" 1/4" spade terminal is provided

on the furnace integrated control. Any electronic air cleaner 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 44 for location of terminal. 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 44 for location of terminal. This terminal is energized in the heating mode when the indoor blower is 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 44 for location of terminal.

10 −Install the room thermostat according to the instruc-

tions provided with the thermostat. See table 14 for thermostat connections. If the furnace is being matched with a heat pump, refer to the instruction packaged with the dual fuel thermostat.

NOTE − The discharge air temperature sensor is intended to be mounted downstream of the heat exchanger and air conditioning coil. It must be placed in free airflow, where other accessories (humidifiers, UV lights etc.) will not interfere with its accuracy. Wiring distance between the furnace and discharge air sensor should not exceed 10 ft. when wired with 18−gauge thermostat wire.

TABLE 12

Run Length  Non Communicating

Wire Run Length AWG # Insulation/Core Types

Less than 100’ (30m) 18

More than 100’ (30m) 16

Color−coded, temperature rating 95ºF (35ºC) minimum, solid core. (Class II Rated Wiring)

TABLE 13

Run Length  Communicating

Wire Run Length AWG # Insulation/Core Types

Maximum length of wiring for all connections on the RSBus is limited to 1500 feet (457 meters).

Color−coded, temperature rating 95ºF (35ºC) minimum, solid core. (Class II Rated Wiring)

Thermostat Selection

The SLP98DFV is designed to operate in a variable rate capacity mode using a two−stage thermostat. The SLP98DFV will automatically adjust firing rate based upon thermostat cycle times.

The icomfort Touch thermostat must be used in communicating applications. Refer to the instructions provided with the thermostat for installation, set−up and operation.

For optimal performance in non−communicating applications, Lennox recommends use of a ComfortSense® 7000 high quality electronic digital thermostat or any other with adjustable settings for 1st stage / 2nd stage on / off differentials and adjustable stage timers.

Lennox recommends the following two−stage thermostat set−up for optimal variable rate capacity mode: First heat stage differential set to 1/2 to 1 degree F; second heat stage differential set to 1/2 or 1 degree F; second heat stage upstage timer disabled, or set to maximum (1 hr minimum).

Indoor Blower Speeds

NOTE − When the SLP98DFV is used with icomfort Toucht thermostat, proper indoor blower speed selections are made by the communicating thermostat.

Page 28

1 − When the thermostat is set to FAN ON," the indoor

blower will run continuously at a percentage of the second−stage cooling speed when there is no cooling or heating demand. The percentage is set using DIP switches 6 and 7.

2 − When the SLP98DFV is running in the heating mode,

the integrated control will automatically adjust the blower speed to match the furnace firing rate. This speed can be adjusted up or down by 7.5% or 15% using DIP switches 14 through 16 for the low heat speed and 17 through 19 for the high heat speed.

3 − When there is a cooling demand, the indoor blower will

run on the cooling speed designated by the positions of DIP switches 8 through 11.

TYPICAL SLP98DFV FIELD WIRING DIAGRAM FOR STANDARD

NON−COMMUNICATING THERMOSTAT

USE COPPER CONDUCTORS ONLY.

FIELD INSTALLED CLASS II 24V FIELD INSTALLED LINE VOLTAGE

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% THD (total harmonic distortion).

1 234 567

91011

14 151617

FIGURE 40

Page 29

icomfort Touch Thermostat with SLP98DFV

and Non−Communicating Outdoor Unit

icomfort Touch Thermostat with SLP98DFV

and icomfort−ENABLED Outdoor Unit

icomfort Touch Thermostat icomfort−Enabled SLP98DFV Indoor Furnace Non−Communicating Outdoor Air Conditioner

icomfort− ENABLED

SLP98DFV

OPTIONAL DISCHARGE AIR SENSOR

icomfort Touch

THERMOSTAT

CLIP Y1 TO Y2 FOR

TWO−STAGE OPERATION

FURNACE

OPTIONAL

OUTDOOR

AIR SENSOR

NON−COMMUNICATING

OUTDOOR AIR

CONDITIONING UNIT −

1 OR 2 STAGE

icomfort Touch Thermostat icomfort−Enabled SLP98DFV Indoor Furnace icomfort−Enabled Outdoor Air Conditioner or Heat Pump

icomfort− ENABLED

SLP98DFV

FURNACE

OPTIONAL

DISCHARGE

AIR SENSOR

OPTIONAL OUTDOOR

AIR SENSOR

icomfort TOUCH

THERMOSTAT

icomfort− ENABLED

OUTDOOR AIR CONDITIONING

OR HEAT PUMP UNIT

FIGURE 41

Page 30

Optional Accessories for use with any icomfort Touch System

DISCHARGE AIR SENSOR

icomfort Touch

THERMOSTAT

NOTE: 24V UV LIGHT APPLICATIONS

Furnace transformer will not have adequate va to power 24v UV light applications. An additional transformer for UV light applications is required.

icomfort− ENABLED

SLP98DFV

FURNACE

NOTE: icomfort THERMOSTAT SENSES HUMIDITY & CONTROLS 24V H" OUTPUT (& 120V H" OUTPUT) TO CYCLE HUMIDIFIER BASED ON DEMAND. NO OTHER CONTROL OR HUMIDISTAT REQUIRED.

OPTIONAL OUTDOOR AIR SENSOR FOR USE WITH HUMIDIFIER (IF NOT ALREADY IN THE SYSTEM FOR OTHER FUNCTIONS. BUILT INTO ALL icomfort OUTDOOR UNITS).

icomfort− ENABLED

SLP98DFV

FURNACE

icomfort−

ENABLED SLP98DFV FURNACE

HEPA BYPASS FILTER

X2680 HEPA

INTERLOCK KIT

LVCS VENTILATION CONTROL SYSTEM

SEE LVCS VENTILATION INSTRUCTIONS FOR DAMPER & SENSOR WIRING

PASS INDOOR BLOWER MOTOR COMMON WIRE THROUGH CURRENT LOOP.

SEE HEPA INTERLOCK KIT FOR INSTALLATION DETAILS

icomfort− ENABLED

SLP98DFV

FURNACE

icomfort−

ENABLED SLP98DFV FURNACE

(C)

icomfort− ENABLED

OUTDOOR AIR

CONDITIONING OR

HEAT PUMP UNIT

NON−COMMUNICATING

1 OR 2 STAGE AC OR HP UNIT

(C)

(disables out-

door unit only)

FIGURE 42

Page 31

Thermostat

1Heat / 1 Cool

NOTE − Use DIP switch 3 to set second−stage heat ON delay. OFF−7 minutes. ON−12 minutes.

TABLE 14

Field Wiring Connections for Non−Communicating Thermostat Applications

DIP Switch Settings and On−Board Links (figure 44)

W914

DIP Switch 1

W915

(Y1 to Y2)

Two−Stage

Cooling

(DS to R)

Dehumidifi-

cation or

Harmony

W951

(O to R)

Heat Pumps

Wiring Connections

III

ON Intact Intact Intact

T’STAT

CONTROL

TERM. STRIP

OUTDOOR

UNIT

1 Heat / 2 Cool

NOTE − Use DIP switch 3 to set second−stage heat ON delay. OFF−7 minutes. ON−12 minutes.

1 Heat / 2 Cool with t’stat with dehumidification mode

NOTE − Use DIP switch 3 to set second−stage heat ON delay. OFF−7 minutes. ON−12 minutes.

ON Cut Intact Intact

ON Cut Cut Intact

T’STAT

CONTROL

TERM. STRIP

CONTROL

TERM. STRIP

OUTDOOR

UNIT

OUTDOOR

UNIT

* R" required on some units.

Page 32

TABLE 14

Field Wiring for Non−Communicating Applications (Continued)

DIP Switch Settings and On−Board Links (figure 44)

W914

(DS to R)

Dehumidifi-

cation or Harmony

W951

(O to R)

Heat Pumps

Thermostat

DIP Switch 1

W915

(Y1 to Y2)

Two−Stage

Cooling

III

2 Heat / 2 Cool OFF Cut Intact Intact

Wiring Connections

T’STAT

CONTROL

TERM. STRIP

OUTDOOR

UNIT

2 Heat / 2 Cool

OFF Cut Cut Intact with t’stat with dehumidification mode

2 Heat / 1 Cool OFF Intact Intact Intact

T’STAT

CONTROL

TERM. STRIP

CONTROL

TERM. STRIP

OUTDOOR

UNIT

OUTDOOR

UNIT

* R" required on some units.

Page 33

Thermostat

Dual Fuel Single−Stage Heat Pump

ComfortSense 7000 L7724U thermostat w/ dual fuel capabilities Capable of 2−stage gas heat control

TABLE 14

Field Wiring for Non−Communicating Applications (Continued)

DIP Switch Settings and On−Board Links (figure 44)

W914

DIP Switch

W915

(Y1 to Y2)

Two−Stage

Cooling

(DS to R)

Dehumidifi-

cation or Harmony

W951

(O to R)

Heat Pumps

III

DIP Switch 1

Intact Intact Cut

OFF

L7724U T’STAT

Wiring Connections

CONTROL

TERM. STRIP

HEAT PUMP

67M41*

Dual Fuel Two−Stage Heat Pump

ComfortSense

DIP Switch 1

OFF

Cut Intact Cut

L7724U T’STAT

CONTROL TERM.

STRIP

67M41*

HEAT PUMP

7000 L7724U thermostat w/ dual fuel capabilities

Capable of 2−stage gas

heat control

outdoor sensor

* Connect W1 to W1 ONLY if using defrost tempering kit 67M41

NOTE − Do NOT make a wire connection between the room thermostat L terminal and the L terminal of the SLP98DFV integrated control.

outdoor

sensor

out blue

Page 34

TYPICAL SLP98DFV WIRING DIAGRAM

FIGURE 43

Page 35

Integrated Control

COMBUSTION

AIR INDUCER CONNECTOR

DIAGNOSTIC

PUSH BUTTON

DIP SWITCHES

OUTDOOR AIR

SENSOR

TERMINALS

DISCHARGE AIR

SENSOR

FACTORY TEST

HEADER PINS.

FACTORY USE ONLY.

TB83 OUTDOOR

TB84 INDOOR

TERMINALS

FLAME

SENSE

INTEGRATED CONTROL

7−SEGMENT

DIAGNOSTIC LED

HUM

EAC

W915

W951

W914

NEUTRAL

TERMINALS

IGNITOR

CONNECTOR

LINE VOLTAGE

TERMINALS

INDOOR

BLOWER

CONNECTOR

W915 Y1 TO Y2

W951 R TO O

W914 R TO DS

L − use only with

communicating T’stat and

non−communicating outdoor

unit.

RS−BUS LINK (TB82, future use)

I+ = DATA HIGH CONNECTION I − = DATA LOW CONNECTION

RS−BUS OUTDOOR (TB83)

R = 24VAC I + = DATA HIGH CONNECTION I − = DATA LOW CONNECTION C = 24VAXC COMMON

RS−BUS INDOOR (TB84)

R = 24VAC I + = DATA HIGH CONNECTION I − = DATA LOW CONNECTION C = 24VAXC COMMON

1/4" QUICK CONNECT TERMINALS

HUM = 120 VAC OUTPUT TO HUMIDIFIER XMFR = 120 VAC OUTPUT TO TRANSFORMER

LI = 120 VAC INPUT TO CONTROL CIRC = 120 VAC OUTPUT TO CIRCULATING BLOWER

EAC = 120 VAC OUTPUT TO ELECTRICAL AIR CLEANER NEUTRALS = 120 VAC NEUTRAL

THERMOSTAT CONNECTIONS (TB1)

DS = DEHUMIDIFICATION SIGNAL W2 = HEAT DEMAND FROM 2ND STAGE T/STAT

W1 = HEAT DEMAND FROM 1ST STAGE T/STAT

R = CLASS 2 VOLTAGE TO THERMOSTAT

G = MANUAL FAN FROM T’STAT

C = THERMOSTAT SIGNAL GROUNCONNECTED TO

TRANSFORMER GRD (TR) & CHASIS GROUND (GRD)

Y1 = THERMOSTAT 1ST STAGE COOL SIGNAL

Y2 = THERMOSTAT 2ND STAGE COOL SIGNAL

O = THERMOSTAT SIGNAL TO HEAT PUMP

H = 24V HUMIDIFIER OUTPUT. DO NOT CONNECT

L = USE ONLY WITH A COMMUNICATING THERMOSTAT

DH = DEHUMIDIFICATION OUTPUT COMMUNICATING

REVERSING VALVE

TO COMFORTSENSE

THERMOSTAT

AND A NON−COMMUNICATING OUTDOOR UNIT

THERMOSTAT ONLY

FIGURE 44

Page 36

Non−Communicating Thermostat Selection Switch Settings

TABLE 15

Operation Thermostat Switch 1 Switch 2 Switch 3

Variable Capacity Heat

Two−Stage Off On Off

(35% to 100%)

Three−Stage Heat (35%, 70%, 100%)

Single−Stage On Off 2nd stage delay

OFF = 7 minutes

ON = 12 minutes

3rd stage delay

10 minutes fixed

Two−Stage Heat (W1 70%, W2 100%) Two−Stage Off Off Off

NOTE − When the SLP98DFV is used with an icomfort Toucht communicating thermostat, all indoor blower speed selections and DIP switch settings are made by the communicating thermostat.

SLP98DFV units are equipped with an integrated control. This control manages ignition timing, combustion air inducer speed, heating mode fan off delays and indoor blower speeds based on selections made using the control DIP switches and on−board links. The control includes an internal Watchguard feature which automatically resets the ignition control when it has been locked out.

NOTE − All DIP switches are factory shipped in the OFF" position.

Heating Operation DIP Switch Settings −− Figure 44

Switch 1 −− Thermostat Selection −− This unit may be used

with either a single−stage or two−stage thermostat. The thermostat selection is made using a DIP switch which must be properly positioned for the particular application. The DIP switch is factory−positioned for use with a two− stage thermostat. If a single−stage thermostat is to be used, the DIP switch must be repositioned. See table 15.

Switch 2 −− Operating Mode with Two−Stage Thermostat −− If a two−stage thermostat is used, the furnace can

operate in either variable−capacity or conventional two− stage mode. When variable−capacity mode is selected, the firing rate of the unit is varied to maximize comfort. Conventional two−stage mode is the factory default setting. See table 15.

Switch 3 −− Second−Stage Heat On Delay −− If a single− stage thermostat is used, the integrated control can be used to energize second−stage heat after either 7 minutes or 12 minutes of first−stage heat operation. See table 15.

Switches 4 and 5 −− Blower−Off Delay −− The blower−on delay of 45 seconds is not adjustable. The blower−off delay

(time that the blower operates after the heating demand has been satisfied) can be adjusted by moving switches 4 and 5 on the integrated control. The unit is shipped from the factory with a blower−off delay of 90 seconds. The blower off delay affects comfort and is adjustable to satisfy individual applications. Adjust the blower off delay to achieve a supply air temperature between 90° and 110°F at the exact moment that the blower is de−energized. Longer off delay settings provide lower supply air temperatures; shorter settings provide higher supply air temperatures. Table 16 provides the blower off timings that will result from different switch settings.

TABLE 16

Blower Off Delay Switch Settings

Blower Off Delay

(Seconds)

Switch 4 Switch 5

60 Off On

90 (factory) Off Off

120 On Off 180 On On

Indoor Blower Operation DIP Switch Settings Switches 6 and 7 −− Continuous Indoor Fan OperationBlower Speed −− The unit is shipped from the factory with

the DIP switches positioned for medium low (2) speed during continuous indoor blower operation. The table below provides the continuous blower speeds that will result from different switch settings. Refer to tables beginning on page 37 for corresponding cfm values.

TABLE 17

Continuous Indoor Blower Operation −− Blower Speeds

Speed Switch 6 Switch 7

1 − Low Off On

2 − Medium Low

(Factory)

Off Off

3 − Medium High On Off

4 − High On On

Page 37

Switches 8 and 9 −− Cooling Mode Blower Speed −− The unit is shipped from the factory with the DIP switches positioned for high speed (4) indoor blower motor operation during the cooling mode. The table below provides the cooling mode blower speeds that will result from different switch settings. Refer to tables beginning on page 37 for corresponding cfm values.

TABLE 18

Cooling Mode Blower Speeds

Speed Switch 8 Switch 9

1 − Low On On

2 − Medium Low Off On

3 − Medium High On Off

4 − High (Factory) Off Off

Cooling Mode Blower Speed Ramping

TABLE 20

Ramping Option Switch 12 Switch 13

A (Factory) Off Off

B On Off C Off On D On On

Ramping Option A (Factory Selection)

 Motor runs at 50% for 30 seconds.  Motor then runs at 82% for approximately 7−1/2 minu-

tes.

 If demand has not been satisfied after 7−1/2 minutes,

motor runs at 100% until demand is satisfied.

 Once demand is met, motor runs at 50% for 30 sec-

onds then ramps down to stop.

Switches 10 and 11 −− Cooling Mode Blower Speed Adjustment −− The unit is shipped from the factory with the

DIP switches positioned for NORMAL (no) adjustment. The DIP switches may be positioned to adjust the blower speed by +10% or −10% to better suit the application. Table 19 provides blower speed adjustments that will result from different switch settings. Refer to tables beginning on page 37 for corresponding cfm values.

With switches 10 and 11 set to ON, motor will bypass ramping profiles and all delays and will immediately run at selected COOLING speed upon a call for cool. LED will continue to operate as normal. This mode is used to check motor operation.

TABLE 19

Cooling Mode Blower Speed Adjustment

Adjustment Switch 10 Switch 11

+10% (approx.) On Off

NORMAL (Factory) Off Off

−10% (approx.) Off On MOTOR TEST On On

Switches 12 and 13 −− Cooling Mode Blower Speed Ramping −− Blower speed ramping may be used to en-

hance dehumidification performance. The switches are factory set at option A which has the greatest effect on blower motor performance. Table 20 provides the cooling mode blower speed ramping options that will result from different switch settings. The cooling mode blower speed ramping options are detailed below.

NOTE − The off portion of the selected ramp profile only applies during heat pump operation in dual fuel applications.

OFF

1/2 MIN 50% CFM

7 1/2 MIN 82% CFM

COOLING DEMAND

100% CFM

1/2 MIN 50% CFM

OFF

Ramping Option B

 Motor runs at 82% for approximately 7−1/2 minutes. If

demand has not been satisfied after 7−1/2 minutes, motor runs at 100% until demand is satisfied.

 Once demand is met, motor ramps down to stop.

OFF

7 1/2 MIN

82%CFM

COOLING DEMAND

100% CFM

OFF

Ramping Option C

 Motor runs at 100% until demand is satisfied.

 Once demand is met, motor runs at 100% for 45 sec-

onds then ramps down to stop.

OFF

100% CFM

COOLING DEMAND

100% CFM

45 SEC.

OFF

Ramping Option D

 Motor runs at 100% until demand is satisfied.

 Once demand is met, motor ramps down to stop.

100% CFM

COOLING DEMAND

OFFOFF

Page 38

Switches 14 through 19 −− Heating Mode Blower Speed

−− These switches are factory set at the OFF position which

provides 100 % of normal speed during HIGH HEAT demand, 70% of normal speed during MID−RANGE HEAT demand and 35% of normal speed during LOW HEAT demand. Switches 14, 15 and 16 are used to adjust the LOW HEAT blower motor speed. Switches 17, 18 and 19 are used to adjust the HIGH HEAT blower motor speed. Table 21 provides the heating mode blower speeds that will result from different switch settings. Refer to tables beginning on page 37 for corresponding cfm values.

TABLE 21

Low Heat Blower Speeds

Thermostat

Demand

Low Heat

(R to W1)

Thermostat

Demand

High Heat

(R to

W1 & W2)

Blower

Speed

Adjust-

ments

+15% On Off On

+7.5% On Off Off

Normal Off Off Off

−7.5% On On Off

−15% On On On

TABLE 22

High Heat Blower Speeds

Blower

Speed

Adjust-

ments

+15% On Off On

+7.5% On Off Off

Normal

−7.5% On On Off

−15% On On On

DIP SWITCH SETTINGS

14 15 16

DIP SWITCH SETTINGS

17 18 19

Off Off Off

On−Board Links

On−Board links must be clipped (when applicable) before unit is placed into operation with a non−communicating thermostat.

On−Board Link W914 (DS to R) −− Figure 44

On−board link W914 is a clippable connection between terminals DS and R on the integrated control. W914 must be cut when the furnace is installed with either the Harmony III zone control or a thermostat which features humidity control. If the link is left intact the PMW signal from the Harmony III control will be blocked and also lead to control damage. Refer to table 24 for operation sequence in applications including SLP98DFV, a thermostat which features humidity control and a single−speed outdoor unit. Table 25 gives the operation sequence in applications with a two−speed outdoor unit.

On−Board Link W951 (R to O) −− Figure 44

On−board link W951 is a clippable connection between terminals R and O on the integrated control. W951 must be cut when the furnace is installed in applications which include a heat pump unit and a thermostat which features dual fuel use. If the link is left intact, terminal O" will remain energized eliminating the HEAT MODE in the heat pump.

On−Board Link W915 (Y1 to Y2) −− Figure 44

On−board link W915 is a clippable connection between terminals Y1 and Y2 on the integrated control. W915 must be cut if two−stage cooling will be used. If the link is not cut the outdoor unit will operate in second−stage cooling only.

Diagnostic LED −− Figure 44

The seven−segment diagnostic LED displays operating status, target airflow, error codes and other information. The table on Page 53 lists diagnostic LED codes.

Diagnostic Push Button −− Figure 44

The diagnostic push button is located adjacent to the seven−segment diagnostic LED. This button is used to enable the Error Code Recall mode and the Field Test mode. Press the button and hold it to cycle through a menu of options. Every five seconds a new menu item will be displayed. When the button is released, the displayed item will be selected. Once all items in the menu have been displayed, the menu resumes from the beginning until the button is released.

Error Code Recall Mode

Select "E" from the menu to access the most recent ten error codes. Select c" from the Error Code Recall menu to clear all error codes. Button must be pressed a second time while c" is flashing to confirm command to delete codes. Press the button until a solid ≡" is displayed to exit the Error Code Recall mode.

Field Test Mode

Use the diagnostic push button to scroll through the menu as described above. Release the button when the LED flashes −" to select the Field Test mode.

While in the Field Test mode the technician can:  Initiate furnace ignition and move to and hold low−fire

rate by applying a R to W1 jumper.

 Initiate furnace ignition sequence and move to and

hold high−fire rate by applying a jumper from R to W1 and W2.

 Initiate furnace ignition sequence and move to and

hold mid−fire rate by applying a jumper to R and W2.

 Apply then remove the jumper from R to W1 and W2 to

change the firing rate from low fire to mid fire and high fire.

 A vent calibration sequence can be initiated even if a

thermostat signal is not present. Press and hold the push button until a solid C" is displayed. Release the button and calibration will begin. The furnace will perform the high−fire and low−fire pressure switch calibrations and display CAL". After calibration, the LED will return to the flashing −" display.

During Field Test mode operation, all safety switches are still in the circuit (they are not by−passed) and indoor blower performance and timings will match DIP switch selections. Current furnace firing rate, indoor blower CFM and flame signal will be displayed. To exit the Field Test mode, press and hold the button. The menu will resume from the beginning. Also, cycle the main power to exit the Field Test mode. The integrated control will automatically exit the Field Test mode after 45 minutes of operation.

Page 39

BLOWER DATA

SLP98DF070V36B BLOWER PERFORMANCE (less lter)

HEATING BLOWER PERFORMANCE

Heating Adjust CFM Selections

35% 40% 50% 60% 70% 80% 90% 100%

Increase (+15%) Heat CFM 495 543 639 735 830 926 1022 1118

Increase (+7.5%) Heat CFM 473 516 604 691 778 866 953 1041

Default Heat CFM 450 489 568 647 726 805 884 963

Decrease (-7.5% ) Heat CFM 430 467 540 614 687 761 834 908

Decrease (-15% ) Heat CFM 410 444 512 580 649 717 785 853

COOLING BLOWER PERFORMANCE

Cooling Adjust CFM

Selections

First Stage Cool Speed - cfm Second Stage Cool Speed - cfm

Low Medium-

Low

Increase (+10%) Cool CFM 625 785 890 995 910 1075 1230 1365

Default Cool CFM 575 710 830 890 845 960 1125 1265

Decrease (-10%) Cool CFM 520 615 710 820 755 885 985 1150

Heating Input Range and Blower Volume - CFM

Blower Speed Selections

Medium

High

(Default)

Low Medium-

Low

Medium

High

(Default)

SLP98DF090V36C BLOWER PERFORMANCE (less lter)

HEATING BLOWER PERFORMANCE

Heating Adjust CFM Selections

35% 40% 50% 60% 70% 80% 90% 100%

Heating Input Range and Blower Volume - CFM

Increase (+15%) Heat CFM 710 756 848 940 1033 1125 1217 1309

Increase (+7.5%) Heat CFM 670 713 799 885 971 1057 1143 1230

Default Heat CFM 629 669 749 829 910 990 1070 1150

Decrease (-7.5% ) Heat CFM 559 599 681 763 845 927 1009 1091

Decrease (-15% ) Heat CFM 488 530 614 697 781 865 948 1032

COOLING BLOWER PERFORMANCE

Cooling Adjust CFM

Selections

First Stage Cool Speed - cfm Second Stage Cool Speed - cfm

Low Medium-

Low

Medium

High

Blower Speed Selections

High

Low Medium-

(Default)

Low

Medium

High

(Default)

Increase (+10%) Cool CFM 610 770 900 1035 920 1080 1215 1385

Default Cool CFM 545 690 805 920 835 1000 1135 1255

Decrease (-10%) Cool CFM 465 620 720 810 750 890 1025 1145

The effect of static pressure is included in air volumes shown.

The following control congurations are available. See Installation Instructions for details and DIP switch settings.

Heat Modes Available (Heating Blower Performance Table): Single stage thermostat:

- 35%, 70%, 100% input (three-stage) with time delays in-between Two-stage thermostat:

- Variable Rate Capacity Mode - furnace automatically adjusts ring rate based on rst- and second-stage cycle times

- W1 demand at 70% input, W2 demand at 100% input. No delay between stages icomfort Touch™ Communicating Thermostat:

- Variable Rate Capacity Mode - furnace automatically adjusts ring rate based on rst- and second-stage cycle times

- 35%, 60%, 80%, 100% (four-stage) with time delays in-between

Cool Mode Available (Cooling Blower Performance table):

First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position. Continuous Fan speeds are approximately 28%, 38%, 70% and 100% (DIP switch selectable) of the same second-stage COOL speed position

minimum 300 cfm.

Lennox Harmony III™ Zoning System Applications - Minimum blower speed is 250 cfm.

Page 40

BLOWER DATA

SLP98DF090V48C BLOWER PERFORMANCE (less lter)

HEATING BLOWER PERFORMANCE

Heating Adjust CFM Selections

35% 40% 50% 60% 70% 80% 90% 100%

Increase (+15%) Heat CFM 723 790 925 1060 1195 1329 1464 1599

Increase (+7.5%) Heat CFM 690 752 878 1004 1129 1255 1381 1507

Default Heat CFM 656 714 831 948 1064 1181 1297 1414

Decrease (-7.5% ) Heat CFM 601 654 761 867 974 1081 1188 1295

Decrease (-15% ) Heat CFM 545 593 690 787 884 981 1078 1175

COOLING BLOWER PERFORMANCE

Cooling Adjust CFM

Selections

First Stage Cool Speed - cfm Second Stage Cool Speed - cfm

Low Medium-

Low

Increase (+10%) Cool CFM 775 940 1100 1255 1120 1340 1535 1745

Default Cool CFM 690 875 975 1135 1000 1220 1425 1625

Decrease (-10%) Cool CFM 635 755 915 1025 920 1100 1270 1470

Heating Input Range and Blower Volume - CFM

Blower Speed Selections

Medium

High

(Default)

Low Medium-

Low

Medium

High

(Default)

SLP98DF090V60C BLOWER PERFORMANCE (less lter)

HEATING BLOWER PERFORMANCE

Heating Adjust CFM Selections

35% 40% 50% 60% 70% 80% 90% 100%

Heating Input Range and Blower Volume - CFM

Increase (+15%) Heat CFM 653 728 877 1027 1176 1326 1475 1625

Increase (+7.5%) Heat CFM 603 673 813 953 1092 1232 1372 1512

Default Heat CFM 553 618 748 878 1009 1139 1269 1399

Decrease (-7.5% ) Heat CFM 510 570 690 8 11 931 1051 1171 1292

Decrease (-15% ) Heat CFM 467 522 632 743 853 963 1074 1184

COOLING BLOWER PERFORMANCE

Cooling Adjust CFM

Selections

First Stage Cool Speed - cfm Second Stage Cool Speed - cfm

Low Medium-

Low

Medium

High

Blower Speed Selections

High

Low Medium-

(Default)

Low

Medium

High

(Default)

Increase (+10%) Cool CFM 1110 1265 1395 1600 1600 1750 1965 2130

Default Cool CFM 1000 1145 1275 1445 1445 1625 1805 1975

Decrease (-10%) Cool CFM 885 1060 1145 1265 1265 1445 1645 1805