EL296DFE ELITE SERIES AFUE - Up to 96%

EL296DFE ELITE SERIES AFUE - Up to 96%

EL296DFE DOWNFLOW GAS FURNACES

G A S F U R N A C E S

EL296DFE

ELITE

®

SERIES

Downflow - Two-Stage Heating - High Efficiency Blower

P R O D U C T S P E C I F I C AT I O N S

Bulletin No. 210648

October 2015

Supersedes August 2015

AFUE - Up to 96%

Input - 44,000 to 110,000 Btuh

Nominal Add-on Cooling - 1.5 to 5 Tons

MODEL NUMBER IDENTIFICATION

EL 2 96 DF 070 X E 48 B

1

Cabinet Width

B = 17-1/2 in.

C = 21 in.

Unit Type

EL = Elite

®

Series

Stages

2 = Two-Stage

AFUE

96 = 96%

Configuration

DF = Downflow

Nominal Gas Heat Input

045 = 44,000 Btuh

070 = 66,000 Btuh

090 = 88,000 Btuh

110 = 110,000 Btuh

Nominal Add-On Cooling Capacity

36 = 1.5 - 3 tons

48 = 2.5 - 4 tons

60 = 3 - 5 tons

Blower

E = High Efficiency Constant Torque Blower Motor

Low NO x

X = Units meet California Nitrogen Oxides Standard (40ng/J)

1

Indoor coils with the same letter designation will physically match the furnace.

A

FEATURES

CONTENTS

Blower Data ............................................................... 18

Dimensions ................................................................ 12

Features....................................................................... 2

Gas Heat Accessories ................................................. 9

Installation Clearances ................................................ 7

Model Number Identification ........................................ 1

Optional Accessories ................................................... 8

Optional Accessory Dimensions ................................ 13

Specifications............................................................... 7

Vent Lengths .............................................................. 10

K

H

G

I

C

WARRANTY

Duralok Plus™ Aluminized Steel Heat Exchanger -

Limited Lifetime warranty in residential applications

(twenty year transferable), ten years in non-residential applications.

All other covered components - Limited Five Year warranty in residential applications, one year in nonresidential applications.

Refer to Lennox Equipment Limited Warranty certificate included with equipment for details.

APPROVALS

Units are Certified by AHRI.

Units are Certified by CSA International.

Units tested and rated according to US DOE test procedures and FTC labeling regulations.

Blower data from unit tests conducted in Lennox

Laboratory air test chamber.

Approved by the California Energy Commission and meets California Nitrogen Oxides Standard (NOx) limits of 40 ng/J.

E nErgy

S tar

®

certified units are designed to use less energy, help save money on utility bills, and help protect the environment.

ISO 9001 Registered Manufacturing Quality System.

APPLICATIONS

Input capacities of 44,000, 66,000, 88,000 and 110,000

Btuh.

Energy efficiency (AFUE) of up to 96%.

Compact cabinet for downflow applications without any internal modifications to the unit.

Lennox add-on indoor coils, high-efficiency air cleaners and humidifiers can easily be added to furnace.

Shipped factory assembled with controls installed and wired.

Each unit factory test operated to ensure proper operation.

NOTE - FURNACES CANNOT BE TWINNED!

EL296DFE / Page 2

I

B

K

F

D

HI

C

I I

C

HI

LO

E

HEATING SYSTEM

B

C

Lennox Duralok Plus™ Heat Exchanger Assembly

HI

C

I I

C

HI

LO

Lennox developed heat exchanger assembly consists of primary heat exchanger and secondary condenser coil assembly.

Main multi-pass crimped seam design clamshell type heat exchanger.

Constructed of heavy-gauge, aluminized steel.

Designed for normal expansion and contraction with maximum efficiency and minimum resistance to air flow.

Secondary heat exchanger condenser coil constructed of aluminum fins fitted to stainless steel tubes.

Complete heat exchanger assembly is pressure tested at the factory for leaks.

Condensate drain header box assembly located on front of coil.

Compact size of complete heat exchanger assembly permits low overall design of furnace cabinet.

Heat exchanger assembly has been laboratory life cycle tested in excess of industry standards.

FEATURES

HEATING SYSTEM (continued)

Lennox Designed Header Box

Header box on end of condenser coil collects flue condensate for disposal through condensate drains.

The drains are located on each side of the cabinet for easy field installation of condensate drain trap.

Only one drain is used, the other drain is sealed.

Condensate drain trap is included with unit for field installation.

Lennox Designed Flue Condensate Trap Assembly

Condensate trap assembly is mounted outside the conditioned air stream.

Assembly can be mounted on either side of cabinet.

See Installation Instructions.

90° street elbow furnished for ease of drain trap installation.

Drain connection can be made with field provided PVC pipe, PVC coupling, or vinyl tubing with hose clamp.

Drain cap on trap allows easy cleaning and winterizing.

D

Inshot Burners

Aluminized steel inshot burners provide efficient, trouble-free operation.

Burner venturi mixes air and gas in correct proportion for proper combustion.

Burner assembly is removable from the unit as a single component for ease of service.

SureLight

®

Hot Surface Ignitor

Tough, reliable, long-life, trouble-free performance.

Silicon nitride ignitor.

Cemented to steatite block for protection against current leakage.

Ignition leads are constructed of nickel plated copper and are enclosed in high temperature Teflon

®

insulation for dependable operation.

E

Two-Stage Gas Control Valve

24 volt redundant combination two-stage gas control valve combines manual shut off switch (On-Off), automatic electric valve (dual) and gas pressure regulation into a compact combination control.

F

Two-Speed Combustion Air Inducer

Permanent split capacitor (PSC), heavy duty blower prepurges heat exchanger and safely vents flue products.

Dual pressure switches (low fire/high fire) prove blower operation before allowing gas valve to open.

Operates only during heating cycle.

Direct access allows inducer assembly to be rotated

90° clockwise or counterclockwise to facilitate easy vent attachment in horizontal applications.

Flame Rollout Switches (2)

Manual reset switches are factory installed on burner box.

Switch provides protection from abnormal operating conditions.

Limit Control

Automatic reset, primary limit is accurately located on vestibule panel on all units.

Optional Accessories

High Altitude Orifice Kits

Required on all units for proper unit operation at altitudes from 7501 to 10,000 ft.

Kits are available for natural gas and LPG/propane.

High Altitude Pressure Switch Kit

Required for proper unit operation on installations above

4500 ft.

Natural Gas to LPG/Propane Conversion Kit

Required for field changeover from natural gas to LPG/Propane.

LPG/Propane to Natural Gas Conversion Kit

Required for field changeover from LPG/Propane to natural gas.

DIRECT VENT / NON-DIRECT VENT

SEALED COMBUSTION SYSTEM

Furnace features a “sealed combustion” system and can be installed in either Direct Vent or Non-Direct applications.

In Direct Vent applications, combustion air is supplied from outdoors and flue gases are discharged outdoors.

In Non-Direct Vent applications, combustion air is supplied from indoors and flue gases are discharged outdoors.

NOTE - Lennox has approved the use of DuraVent

®

PolyPro

®

and Centrotherm InnoFlue

®

manufactured vent pipe and terminations as an alternative to PVC vent pipe. Must be ordered separately.

Tested and listed to the ULC S636 standard in Canada.

The polypropylene venting system must follow the uninsulated and unconditioned space vent lengths listed

in the table on 9.

Refer to the Installation Instructions for additional details.

EL296DFE / Page 3

FEATURES

DIRECT VENT / NON-DIRECT VENT

SEALED COMBUSTION SYSTEM (continued)

Optional Accessories

Termination Kits

Facilitates installation of combustion air intake pipe and flue exhaust pipe.

Refer to venting table in this bulletin to determine pipe size needed and proper termination kit required.

Certain Termination Kits are certified to ULC S636 standard for use in Canada only.

See Optional Accessories table and dimension drawings.

Termination Kit - Concentric - Direct Vent

Applications

2 or 3 inch kit contains concentric termination assembly, reducer bushing and 45 degree elbow.

2 inch kit for -045-070 models contains an outdoor exhaust accelerator.

Kit requires single hole penetration of roof or wall for installation.

Roof Termination Flashing Kit is available for use with

2 inch Kits.

CSA certified.

Termination Kit - Flush-Mount

Kit contains flush-mount termination, accelerator, mounting template and hardware.

Kit may be used with 2, 2-1/2 or 3 in. pipe.

Termination Kits - Wall Assembly

Close Couple (US Only) - Direct Vent Applications

2 or 3 inch kit consists of close-couple, side-by-side

PVC piping with galvanized steel wall cover plate for sealing and isolating piping penetration of the wall.

Piping spacing and length is sized for proper wall installations.

CSA certified.

Close Couple WTK (Canada Only) - Direct Vent

Applications

2 or 3 inch kit contains one insulated faceplate, one insulated exhaust pipe, elbow and fittings. Certified to

ULC S636 standard.

Wall Ring - Direct Vent or Non-Direct Vent

Applications

2 inch kit contains 2 stainless steel outside seal caps,

2 galvanized steel inside seal caps, 4 seal rings for the caps and 18 inch insulation sleeve for sealing and isolating intake and exhaust piping penetration of wall.

Maintain a maximum of 6 inches between the inlet and outlet openings in the installation of the pipes.

Roof Termination Flashing Kit - Direct Vent or

Non-Direct Vent Applications

3 inch kit contains two neoprene rubber roof flashings for vertical venting through a roof.

Vent pipe and insulation not furnished.

Flashing Kit can also be used with 2 inch Concentric

Vent Termination Kits used in vertical venting rooftop applications.

Left Side Vent Kit

Allows venting out the left side of the cabinet. Kit contains left vent tube and seal plate.

G

CONTROLS

SureLight

furnace.

®

Integrated Furnace Control

Contains all necessary controls and relays to operate

Combustion air inducer is operated by the integrated furnace control. Prior to ignition, a pre-purge cycle for 15 seconds is initiated. After the main burners are turned off, a post-purge cycle for 5 seconds is run.

Safety Controls - Flame sensor utilizes flame rectification for safe and reliable operation.

Should loss of flame occur, the integrated furnace control will initiate 4 re-attempts at ignition before locking out unit operation for 60 minutes.

Watchguard type circuit automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance calls for service.

Thermostat Control - For optimal performance, the use of a high-quality, digital two-stage thermostat with adjustable settings for first stage/second stage, on/off differentials and adjustable stage timers is recommended.

Furnace Input Staging Options

Thermostat Type Input Staging Available

Two-Stage

(Conventional)

Determined by thermostat demand

Single-Stage

(Conventional)

2nd-stage heat ON delay

(DIP switch setting)

OFF - 7 minutes (factory)

ON - 12 minutes

Display LED - Seven segment LED displays alphanumeric information related to diagnostics as well as system operation and status. Diagnostic codes are held in non-volatile memory, immune from power interruptions. Holds up to ten diagnostic codes in order of occurrence for recall on demand. Port on blower door allows for easy viewing.

EL296DFE / Page 4

FEATURES

CONTROLS (continued)

DIP Switch Settings

Select Thermostat Used - Single-Stage or Two-Stage.

Two selectable second stage recognition times (7 and

12 minutes) are available on the control when the furnace is used with a single-stage thermostat. When used with a two-stage thermostat, furnace will only initiate second stage operation with a second stage thermostat demand.

Second Stage Delay - Used with single-stage thermostat only. See Furnace Input Staging Options table for details.

Blower On/Off Time (Heating) - Blower on time is fixed at 30 seconds, blower off time is adjustable from 60, 90,

120 and 180 seconds (factory setting - 90 seconds).

Blower On/Off Time (Cooling) - For air-conditioning applications, blower on time is 2 seconds following thermostat demand for cooling. Blower off time in cooling mode is adjustable from 2 or 45 seconds

(factory setting - 45 sec).

For air-conditioning applications, blower is automatically energized on thermostat demand for cooling.

Heating Speeds - Low Heat or High Heat.

Cooling Speeds - Low Cool or High Cool.

Continuous Speed - Low Heat (factory setting) - adjustable.

Dehumidification - A jumper on the control must be clipped to enable dehumidification. A humidity controlling thermostat or device is also required. During a call for cooling, air volume is automatically reduced, forcing humidity removal by the air conditioner or heat pump system (single stage units or two-stage units running at 2nd stage). After the humidity has reached the desired set-point the cooling air volume returns to its designed rate.

Dual-Fuel Operation - A jumper on the control must be clipped to enable operation with a single or two-stage heat pump. The indoor blower is started without delay when a call for heat is received.

Two-Stage Compressor Operation - A jumper on the control must be clipped to enable operation with a twostage compressor.

Accessory Terminal - One accessory terminal furnished for additional power supply requirements for

120 volt (less than 1 amp) powered air cleaners.

One unpowered pair of contacts are provided for humidifier connections and may be connected to 24V or

120V.

Control is factory installed in the unit control box.

24 Volt Transformer

Furnished and factory installed in control box. 40VA transformer has circuit breaker wired in series.

Field Wiring Make-up Box

Furnished for line voltage wiring.

Factory installed internally on left side of furnace.

Box may be installed internally or externally on either side of furnace.

Optional Accessories

Thermostat

Thermostat (programmable/non-programmable) is not furnished with unit.

See Thermostat bulletins in Controls Section and

Lennox Price Book for selection.

Night Service Kit

Contains most commonly used service parts:

• Furnace control

• Igniter

• Flame sensor

• Gas valve

• Transformer

• Service Manual

Universal Service Kit - Switches

Kit contains:

• Primary limits (for each model)

• Pressure switches (for each model)

• Flame rollout switches (for each model)

EL296DFE / Page 5

FEATURES

H

BLOWER

Direct drive blower.

Statically and dynamically balanced.

Resiliently mounted.

Blower assembly easily removed for servicing.

DC Brushless Motor

High Efficiency Constant Torque.

ECM (Electronically Commutated Motor).

Motor is programmed to provide constant torque at each of the selectable speeds.

Motor is controlled by the Integrated Furnace Control.

Blower speeds are easily changed on the integrated furnace control. See Blower Data tables.

I

J

K

CABINET

Low-profile, narrow width cabinet allows easy installation in downflow applications.

Heavy-gauge, cold rolled steel construction.

Pre-painted cabinet finish.

Flanges provided on supply air opening for ease of plenum connection or alignment with indoor coil.

Cabinet is insulated with foil faced insulation on sides and back of heating compartment and mat faced insulation in blower compartment..

Sealed blower compartment.

Inner blower compartment access panel seals blower compartment from air leakage.

Cabinet door can be removed without any tools.

Complete service access.

Safety interlock switch automatically shuts off power to unit when blower compartment access door is removed.

Gas piping and electrical inlets are provided in both sides of cabinet.

Coil Match-Up

All furnaces exactly match CR33 cased, downflow indoor coils with adaptor rails, furnished with coil.

Low Leakage Cabinet

All models have less than 2% air leakage and meet

ANSI/ASHRAE Standard 193-2010 “Method of Test for

Determining the Air Tightness of HVAC Equipment”.

Optional Accessories

Condensate Drain Heat Cable Kits

Self-limiting wattage heat cable prevents condensate drain from freezing in unconditioned areas.

Available in 6 or 24 ft. lengths.

Crawl Space Vent Drain Kit

Allows venting through a crawl space for downflow applications.

Includes 2 or 3 in. sanitary tee, 2 in. PVC assembly,

PCV boot and clamp.

Downflow Combustible Flooring Base

Required for heating only units installed on combustible floors.

Not required in add-on cooling applications.

See Dimension Drawing.

FILTER (not furnished)

Filter and provisions for external mounting must be field provided.

Optional Accessories

Downflow Filter Cabinet

Filter cabinet mounts directly on top of furnace.

“B and “C” width cabinets have two filters.

Filter rails are furnished.

Front access for servicing.

Cleanble filter(s) are furnished.

EL296DFE / Page 6

SPECIFICATIONS

Gas

Heating

Performance

Model No. EL296DF045XE36BEL296DF070XE48BEL296DF090XE48CEL296DF110XE60C

1

AFUE 96% 96% 96% 96%

Input - Btuh 44,000 66,000 88,000 110,000

High

Fire

Output - Btuh

Temperature rise range - °F

43,000

35-65

64,000

35-65

85,000

40-70

106,000

45-75

3.5 / 10.0

3.5 / 10.0

3.5 / 10.0

3.5 / 10.0

Gas Manifold Pressure (in. w.g.)

Nat. Gas / LPG/Propane

Low

Fire

Input - Btuh

Output - Btuh

29,000

28,000

43,000

42,000

57,000

55,000

72,000

70,000

Temperature rise range - °F

Gas Manifold Pressure (in. w.g.)

Nat. Gas / LPG/Propane

High static - in. w.g.

Connections in.

Intake / Exhaust Pipe (PVC)

Gas pipe size IPS

Condensate Drain Trap (PVC pipe) - i.d.

20 - 50

1.7 / 4.9

0.5

2 / 2

1/2

3/4

25 - 55

1.7 / 4.9

0.5

2 / 2

1/2

3/4

30 - 60

1.7 / 4.9

0.5

2 / 2

1/2

3/4

35 - 65

1.7 / 4.9

0.5

2 / 2

1/2

3/4 with furnished 90° street elbow 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt

Indoor

Blower

with field supplied (PVC coupling) - o.d. 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT

Wheel nom. diameter x width - in.

10 x 8 11-1/2 x 10 10 x 10 11 x 11

Motor Type

Motor output - hp

DC Brushless

1/2

DC Brushless

3/4

DC Brushless

3/4

DC Brushless

1

Tons of add-on cooling

Air Volume Range - cfm

Voltage

1.5 - 3

485 - 1395

2 - 4 2 - 4

520 - 1770 760 - 1765

120 volts - 60 hertz - 1 phase

3 - 5

1045 - 2285

Electrical

Data

Blower motor full load amps

Maximum overcurrent protection

6.8

15

8.4

15

8.4

15

10.9

15

Shipping Data

lbs. - 1 package 134 145 163 175

NOTE - Filters and provisions for mounting are not furnished and must be field provided.

1

Annual Fuel Utilization Efficiency based on DOE test procedures and according to FTC labeling regulations. Isolated combustion system rating for non-weatherized furnaces.

INSTALLATION CLEARANCES

Sides

Rear

Top/Plenum

Front

1

0 inches (0 mm)

0 inches (0 mm)

1 inch (25 mm)

0 inches (0 mm)

Front (service/alcove)

Floor

24 inches (610 mm)

2

Combustible

NOTE - Air for combustion must conform to the methods outlined in the National Fuel Gas Code (NFPA 54/

ANSI-Z223.1) or the National Standard of Canada CAN/CSA-B149.1 “Natural Gas and Propane Installation

Code”.

NOTE - In the U.S. flue sizing must conform to the methods outlined in the current National Fuel Gas Code (NFPA

54/ANSI-Z223.1) or applicable provisions of local building codes. In Canada flue sizing must conform to the methods outlined in National Standard of Canada CAN/CSA-B149.1.

1

Allow proper clearances to accommodate condensate trap and vent pipe installation.

2 Clearance for installation on combustible floor if Optional Downflow Combustible Flooring Base is installed between furnace and combustible floor. Not required in add-on cooling applications if installed in accordance with local codes or National Fuel Gas Code ANSI-Z223.1 or CAN/CGA-149.1,.2. Do not install the furnace directly on carpeting, tile, or other combustible materials other than wood flooring.

EL296DFE / Page 7

OPTIONAL ACCESSORIES - ORDER SEPARATELY

NOTE - FURNACES CANNOT BE TWINNED!

“B” Width Models “C” Width Models

CABINET ACCESSORIES

Downflow Combustible Flooring Base

CONDENSATE DRAIN KITS

Condensate Drain Heat Cable

11M60 11M61

6 ft.

24 ft.

26K68

26K69

51W18

26K68

26K69

51W18 Crawl Space Vent Drain Kit

FILTERS

1

Downflow Filter Cabinet

No. and Size of filter - in.

51W07

(2) 16 x 20 x 1

51W08

(2) 16 x 20 x 1

NIGHT SERVICE KITS

Night Service Kit

Universal Service Kit - Switches

TERMINATION KITS

See Installation Instructions for specific venting information.

Termination Kits -

Direct Vent Applications

Only

Concentric

Flush-Mount

Wall - Close

Couple

Wall - Close

Couple WTK

US - 2 in.

3 in.

Canada - 2 in.

3 in.

US - 2, 2-1/2 or 3 in.

Canada - 2, 2-1/2 or 3 in.

US - 2 in.

3 in.

Canada - 2 in.

3 in.

Termination Kits -

Direct or Non-Direct Vent

Roof

Wall Ring Kit

2

Roof Termination Flashing Kit - Direct or Non-Direct Vent

(2 flashings)

VENTING

2 in.

2 in.

3 in.

10B39

89W20

71M80

- - -

44W92

- - -

51W11

51W12

22G44

44J40

30G28

81J20

15F75

15F74

44J41

3

10B39

89W20

69M29

60L46

44W92

44W93

51W11

51W12

- - -

44J40

- - -

81J20

15F75

15F74

44J41

4

Left Side Vent Kit

2 or 3 in.

87W73 87W73

1

Cleanable polyurethane, frame-type filter.

2

Kits contain enough parts for two, non-direct vent installations.

3

Non-direct vent only.

4

NOTE - The curved exhaust pipe furnished with the Left Side Vent Kit counts as one additional 2 in. diameter 90° elbow. When using 3 in. diameter pipe, the furnished curved exhaust pipe and field provided fittings to transition from 2 in. to 3 in. count as 20 feet of equivalent pipe on all units.

NOTE - Termination Kits 44W92, 44W93, 30G28, 51W12, 51W19, 81J20 are certified to ULC S636 standard for use in Canada only.

EL296DFE / Page 8

GAS HEAT ACCESSORIES

Input

045

070

090

110

High Altitude

Pressure Switch Kit

4501 - 7500 ft.

7501 - 10,000 ft.

93W81

11X70

11X65

93W80

93W84

11X71

98W79

93W85

Natural Gas to

LPG/Propane Kit

0 - 7500 ft.

78W93

78W93

78W93

78W93

LPG/Propane to Natural Gas Kit

0 - 7500 ft.

77W09

77W09

77W09

77W09

Natural Gas

High Altitude

LPG/Propane

High Altitude

Orifice Kit Orifice Kit

7501- 10,000 ft. 7501- 10,000 ft.

73W37

73W37

73W37

73W37

78W96

78W96

78W96

78W96

OUTDOOR TERMINATION KIT USAGE

Input

Size

045

070

090

110

Vent

Pipe

Diameter

(in.)

Flush

Mount

Kit

4

51W11 (US)

51W12 (CA)

2

2-1/2

3

3

YES

YES

Standard Terminations

4

2 inch

Wall Kit

22G44 (US)

30G28 (CA)

4

3 inch

44J40 (US)

Wall Ring

Kit

2 inch

81J20 (CA) 15F74

Field

Fabricated

Exhaust

Accelerator

Size

Required

YES

1

YES YES 1-1/2 in.

3

2

3

3

YES

YES

YES

YES

YES

1

YES

1

YES

1

YES

YES

YES

YES

1-1/2 in.

1-1/2 in.

1-1/2 in.

2-1/2

3

2

2-1/2

3

2

2-1/2

3

3

3

3

3

3

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

- - -

- - -

- - -

- - -

- - -

- - -

1

YES

1

YES

YES

YES

YES

YES

YES

YES

1

1

1

YES

YES

YES

YES

YES

YES

- - -

- - -

1-1/2 in.

1-1/2 in.

2 in.

2 in.

2 in.

2 in.

2 in.

2 in.

4

2

2

2

2

2

2

YES

YES

YES

YES

YES

YES

- - -

- - -

- - -

- - -

- - -

- - -

Concentric Terminations

1-1/2 inch

71M80 (US)

44W92 (CA)

Concentric Kit

2 inch

4

69M29 (US)

44W92 (CA)

- - -

- - -

YES

YES

YES

YES

- - -

- - -

- - -

- - -

YES

YES

4

3 inch

60L46 (US)

44W93 (CA)

- - -

- - -

YES

YES

YES

YES

- - -

- - -

- - -

- - -

YES

YES

NOTE - Standard Terminations do not include any vent pipe or elbows external to the structure.

Any vent pipe or elbows external to the structure must be included in total vent length calculations. See Vent Length Tables.

1

Requires field provided 1-1/2 in. outdoor exhaust accelerator.

2 Concentric Kits

71M80 and 44W92 include 1-1/2 in. outdoor exhaust accelerator, required when used with 045 and 070 input models. Accelerator is not used with 090,

110, 135 input models.

3

Flush Mount Kit 51W11 and 51W12 includes 1-1/2 in. outdoor exhaust accelerator, required when used with 045, 070 and 090 input models. Accelerator is not used with

110 or 135 input models.

4

Termination Kits 30G28, 44W92, 44W93, 51W12 and 81J20 are certified to ULC S636 standard for use in Canada only.

VENT LENGTHS - UNINSULATED EXHAUST PIPE IN UNCONDITIONED SPACE

1

Winter Design

Temperatures

32 to 21°F

20 to 1°F

Vent Pipe

Diameter

2 in.

2-1/2 in.

3 in.

2 in.

2-1/2 in.

PVC

21

16

12

11

7

045

PolyPro

InnoFlue

18

N/A

12

9

N/A

Unit Input Size

070 090

Maximum Un-Insulated Exhaust Vent Length (ft.)

PVC

33

PolyPro

InnoFlue

30

PVC

46

PolyPro

InnoFlue

42

26

21

19

14

N/A

21

17

N/A

37

30

28

21

N/A

30

25

N/A

0 to –20°F

3 in.

2 in.

2-1/2 in.

3 in.

N/A

6

N/A

N/A

N/A

4

N/A

N/A

9

12

7

N/A

9

10

N/A

N/A

16

19

13

8

NOTE - Concentric terminations are equivalent to 5 ft. of straight pipe and should be included when measuring total pipe length.

1

Refer to 99% Minimum Design Temperature table provided in the current edition of ASHRAE Handbook-Fundamentals.

PolyPro ® poly-propylene vent pipe is a registered trademark of DuraVent ® .

Innoflue

®

is a registered trademark of Centrotherm Eco Systems.

16

16

N/A

8

PVC

30

36

29

27

20

14

18

12

7

110

EL296DFE / Page 9

PolyPro

InnoFlue

30

N/A

29

24

N/A

14

15

N/A

7

VENT LENGTHS - FEET

STANDARD TERMINATION AT ELEVATION 0 - 4500 ft.

Pipe Size 2 in.

Input

1

045

71

070

56

090

34

110

14

No. of

90 ELL

2

3

4

5

6

7

66

61

56

51

46

41

51

46

41

36

31

26

29

24

19

14

9

4

9

4

N/A

N/A

N/A

N/A

8

9

10

36

31

26

21

16

11

N/A

N/A

N/A

N/A

N/A

N/A

045

2-1/2 in.

070

105 105

090

83

100 100

95 95

90

85

90

85

78

73

68

63

80

75

70

65

60

80

75

70

65

60

58

53

48

43

38

STANDARD TERMINATION ELEVATION 4501 - 10,000 ft.

Pipe Size 2 in.

Input

1

045

71

070

56

090

34

110

N/A

2

3

66

61

51

46

29

24

N/A

N/A

No. of

90 ELL

4

5

6

56

51

46

41

36

31

19

14

9

N/A

N/A

N/A

9

10

7

8

41

36

31

26

26

21

16

11

4

N/A

N/A

N/A

N/A

N/A

N/A

N/A

045

2-1/2 in.

070

105 105

090

83

100 100

95 95

78

73

90

85

80

90

85

80

68

63

58

75

70

65

60

75

70

65

60

53

48

43

38

23

18

13

8

3

110

48

43

38

33

28

3 in.

045 070 090 110

128 127 108 108

123 122 103 103

118 117 98 98

113 112

108 107

93

88

93

88

101 102

98 97

93

88

83

92

87

82

83

78

73

68

63

83

78

73

68

63

110

48

43

38

33

28

23

18

13

8

3

3 in.

045 070 090 110

128 127 108 108

123 122 103 103

118 117 98 98

113 112

108 107

103 102

93

88

83

93

88

83

98

93

88

83

97

92

87

82

78

73

68

63

78

73

68

63

CONCENTRIC TERMINATION AT ELEVATION 0 - 4500 ft.

Pipe Size 2 in.

Input

1

045

63

070

48

090

32

110

12

2

3

58

53

43

38

27

22

7

2

No. of

90 ELL

4

5

6

7

48

43

38

33

33

28

23

18

17

12

7

2

N/A

N/A

N/A

N/A

8

9

10

28

23

18

13

8

3

N/A

N/A

N/A

N/A

N/A

N/A

045

95

90

85

80

75

70

65

60

55

50

CONCENTRIC TERMINATION ELEVATION 4501 - 10,000 ft.

Pipe Size 2 in.

Input

1

2

045

63

58

070

48

43

090

32

27

110

N/A

N/A

045

95

90

3

4

53

48

38

33

22

17

N/A

N/A

85

80

No. of

90 ELL

5

6

7

43

38

33

28

23

18

12

7

2

N/A

N/A

N/A

75

70

65

8

9

10

28

23

18

13

8

3

N/A

N/A

N/A

N/A

N/A

N/A

60

55

50

2-1/2 in.

070

95

090

79

90

85

74

69

80

75

70

65

64

59

54

49

60

55

50

44

39

34

2-1/2 in.

070

95

90

090

79

74

85

80

69

64

75

70

65

59

54

49

60

55

50

44

39

34

110

44

39

34

29

24

19

14

9

4

N/A

3 in.

045 070 090 110

111 111 104 104

106 106

101 91

99

94

99

94

96

91

96

81

96

91

86

81

89

84

79

74

89

84

79

74

76

71

66

76

71

66

69

64

59

69

64

59

110

44

39

34

29

24

19

14

9

4

N/A

3 in.

045 070 090

111 111 104

106 106 99

101 101

96 96

94

89

91

86

81

91

86

81

84

79

74

76

71

66

76

71

66

69

64

59

110

94

99

94

89

84

79

74

69

64

59

EL296DFE / Page 10

VENT LENGTHS (EXHAUST) - VENTILATED ATTIC OR CRAWLSPACE INTAKE AIR - FEET

STANDARD TERMINATION AT ELEVATION 0 - 10,000 ft.

Pipe Size 2 in.

Input

1

045

61

070

46

090

24

110

4

No. of

90 ELL

2

3

4

5

6

7

56

51

46

41

36

31

41

36

31

26

21

16

19

14

9

4

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

8

9

10

26

21

16

11

6

1

N/A

N/A

N/A

N/A

N/A

N/A

65

60

55

50

45

045

90

85

80

85

70

65

60

55

50

45

2-1/2 in.

070

90

090

68

85

80

75

70

63

58

63

48

43

38

33

28

23

8

3

N/A

N/A

N/A

110

33

28

23

18

13

3 in.

045 070

108 107

103 102

98 97

93

88

92

87

83

78

73

68

63

82

77

72

67

62

63

58

53

48

43

090

88

83

78

73

68

63

58

53

48

43

110

88

83

78

73

68

EL296DFE / Page 11

DIMENSIONS - INCHES (MM)

Flue Condensate Trap Assembly

Furnished for external field installation on either side of unit.

(See installation instructions for additional information.)

3/4

(19)

AIR

A

B

FLOW

C

Supply

Air

FRONT VIEW

9/16

(14)

3/4

(19)

7

(178)

COMBUSTION

AIR INTAKE

EXHAUST AIR

OUTLET

2-1/16 (52)

33

(838)

B

RETURN AIR

OPENING

1-1/2 (38)

Front Panel

1 (25)

1-7/8 (48)

5-3/16

(132)

2-1/16

(52)

2 (51)

Either Side

GAS PIPING INLET

(Either Side)

9-1/8 (232) Right

6-9/16 (167) Left

5

(127)

9/16

(14)

TOP VIEW

6-1/4

(157)

27-3/4

(705)

19-7/16

(494)

VENT LOCATION

(Kit Required)

ALTERNATE RIGHT SIDE

VENT LOCATION

(Parts Furnished)

CONDENSATE

(Either Side)

6-7/16 (163)

Either Side

9 (229)

Either Side

19-1/4

(489)

Supply

Air

SIDE VIEW

9/16

(14)

3/4

(19)

Model No.

EL296DF045XE36B

EL296DF070XE48B

EL296DF090XE48C

EL296DF110XE60C

in.

17-1/2

21

A mm

446

533

in.

16-3/8

19-7/8

B mm

416

505

in.

16

19-1/2

C mm

406

495

EL296DFE / Page 12

OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)

DOWNFLOW FILTER CABINET

“B AND ”C” WIDTH FURNACES

(Two Filters)

17-1/2 (445) “B” Box

21 (533) “C” Box

20-1/2

(521)

FILTERS (2)

17-1/2

(445)

33

(838)

50-1/2

(1283 )

FURNACE

FILTER ACCESS

DOOR

NOTE: Return Air Opening (W x D)

“B” Box 16-1/2 x 19-5/8 (419 x 498)

“C” Box 20 x 19-5/8 (508 x 498)

DOWNFLOW COMBUSTIBLE FLOORING BASE

22

(559)

DOWN

FLOW

FURNACE

1-1/2

(38)

SUPPLY

OPENING

19-13/16

(503)

B

1-1/2

(38)

27-1/4

(692)

21-13/16

(554)

Front Of Furnace

A

TOP VIEW

1-1/2

(38)

SIDE VIEW

DOWNFLOW

COMBUSTIBLE

FLOORING

BASE

FLOOR

OPENING

Cabinet

Width

B

C

Catalog

Number in.

A mm in.

B mm in.

C mm

11M60

19-9/16 497 16-9/16 421 18-3/4 476

11M61

23-1/16 586 20-1/16 510 22-1/4 565

C

EL296DFE / Page 13

DIMENSIONS - INCHES (MM) - FURNACE/COIL COMBINED DIMENSIONS

Furnace

Width

33

(838)

Overall

Height

Coil

Height

Model

Number

CR33-24B-F

Coil

Width

Furnace

Width

Coil

Height

Overall

Height in. mm in. mm in. mm in. mm

17-1/2 446 17-1/2 446 13-1/4 337 46-1/4 1175

CR33-30/36B-F 17-1/2 446 17-1/2 446 16-1/8 410 49-1/8 1248

CR33-30/36C-F 21 533 21 533 16-1/8 410 49-1/8 1248

CR33-48B-F 21 533 17-1/2 446 20 508 53 1346

CR33-48C-F 21 533 21 533 20 508 53 1346

CR33-50/60C-F 24-1/2 622 21 533 23-5/8 600 56-5/8 2276

Coil

Width

EL296DFE / Page 14

OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)

FLUSH-MOUNT VENT TERMINATION KIT 51W11 (US) or 51W12 (CANADA)

2-3/8 (60)

With 2 or 2-1/2 in. (51 or 64 mm) PVC pipe

Exhaust Intake

(Behind Plate)

Seal all openings

(typical)

With 3 in. (76 mm) PVC pipe

Exhaust Intake

(Behind Plate)

12 (305) minimum

(recommended)

2 (51) PVC pipe

3 (76) PVC pipe

When required Use

Field Provided

2-1/2 to 2 in. (64 to 51 mm)

Coupling

NOTE - PVC pipe and fittings are not furnished and must be field furnished.

2-1/2 (64) PVC pipe

EL296DFE / Page 15

OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)

CONCENTRIC WALL

TERMINATION APPLICATIONS

CONCENTRIC ROOF

TERMINATION APPLICATIONS

FLASHING

(Not Furnished)

EXHAUST

AIR

INTAKE

AIR

OUTSIDE

WALL

CLAMP

(Not Furnished)

INTAKE

AIR

EXHAUST

AIR

INTAKE

AIR

12 (305)

Minimum

Above Grade or Average Snow

Accumulation

GRADE

12 (305)

Minimum

Above Average

Snow

Accumulation

CLAMP

SHEET METAL STRAP

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

71M80 / 69M29 / 44W92 − 2 inch kits

60L46 / 44W93 − 3 inch kits

See Installation Instructions for additional information.

Note - Field provided reducer may be required to adapt larger vent pipe size to termination.

ELBOW

(Field Supplied)

A

B

INTAKE AIR

TERMINATION

ASSEMBLY

(Furnished)

Cat. No.

71M80

69M29

44W92

(Canada)

60L46

44W93

(Canada)

Outdoor Exhaust Accelerator included with 71M80/44W92

A B in.

mm in.

mm

33−3/8 848 16−3/4 425

29 737 15−1/2 394

38−7/8 987

21−3/16 538

36−1/8 918 19−1/2 495

NOTE − Typical illustration for dimensions only. Design may vary depending on kit ordered.

WALL ASSEMBLY TERMINATION KIT − RING KIT 15F74 − 2 inch (51 mm)

See Installation Instructions for additional information.

Note - Field provided reducer may be required to adapt larger vent pipe size to termination.

DIRECT VENT APPLICATION

NON-DIRECT VENT APPLICATION

NOTE - EXHAUST PIPE SHOWN

Kit Contains Enough Parts For Two Installations

12 in. (305 mm) - 2 in. (51 mm) dia. exhaust pipe

20 in. (508 mm) - 3 in. (76 mm) dia. exhaust pipe

maximum length without support

12 in. (305 mm) - 2 in. (51 mm) dia. exhaust pipe

20 in. (508 mm) - 3 in. (76 mm) dia. exhaust pipe

maximum length without support

8 in. (203 mm) minimum

6 in. (152 mm) maximum

NOTE − 12 in. (305 mm) minimum height above average snow accumulation

(from bottom of vent pipe).

NOTE − 12 in. (305 mm) minimum height above average snow accumulation

(from bottom of vent pipe).

EL296DFE / Page 16

OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)

WALL TERMINATION KITS (CLOSE-COUPLE)

EXTENDED VENT FOR GRADE CLEARANCE

2 inch (51 mm) 22G44 (US)

3 inch (76 mm) 44J40 (US)

See Installation Instructions for additional information.

Note - Field provided reducer may be required to adapt larger vent pipe size to termination.

If Intake and Exhaust Pipe is less than12 in. (305 mm) above snow accumulation or other obstructions, field fabricated piping must be installed.

WALL SUPPORT

8 (203) MIN. Between Ends of Exhaust and Intake Pipe

12 (305) MAX. for 2 (51) Dia. Exhaust

20 (508) MAX. for 3 (76) Dia. Exhaust

12

(305)

6 (152)

Maximum

EXHAUST

AIR

INTAKE

AIR

INTAKE

AIR

8 (203) MIN.

12 (305) Minimum

Above Grade or Average

Snow Accumulation

GRADE

12 (305) MAX. for 2 (51) Dia. Exhaust

20 (508) MAX. for 3 (76) Dia. Exhaust

5

(127)

5-1/2

(140)

1/2 (13)

FOAM INSULATION

(Field Furnished)

EXHAUST

AIR

12 (305) Minimum

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.

Note - Field provided reducer may be required to adapt larger vent pipe size to termination.

If Intake and Exhaust Pipe is less than12 in. (305 mm) above snow accumulation or other obstructions, field fabricated piping must be installed.

WALL SUPPORT

12 (305) MAX. for 2 (51) Dia. Exhaust

20 (508) MAX. for 3 (76) Dia. Exhaust

12

(305)

6 (152)

Maximum

INTAKE

AIR

EXHAUST

AIR

6 (152)

MIN.

INTAKE

AIR

6 (152) MIN.

12 (305) Minimum

Above Grade or Average

Snow Accumulation

GRADE

12 (305) MAX. for 2 (51) Dia. Exhaust

20 (508) MAX. for 3 (76) Dia. Exhaust

5

(127)

5-1/2

(140)

1/2 (13)

FOAM INSULATION

(Field Furnished)

EXHAUST

AIR

12 (305) Minimum

Above Grade or Average

Snow Accumulation

GRADE

EL296DFE / Page 17

BLOWER DATA

EL296DF045XE36B PERFORMANCE (Less Filter)

External Air Volume / Watts at Various Blower Speeds

Static

Pressure in. w.g.

0.00

cfm

1395

High

Watts

335

Medium-High cfm

1290

Watts

250

cfm

1190

Medium

Watts

195

Medium-Low cfm

910

Watts

105

0.10

0.20

1375

1320

350

360

1245

1215

260

265

1140

1090

205

215

875

825

110

120

0.30

0.40

0.50

0.60

0.70

0.80

1285

1275

1230

1185

N/A

N/A

365

375

385

380

N/A

N/A

1165

1150

1095

1060

1020

980

270

285

295

300

310

315

1065

1025

985

935

915

860

225

230

240

245

250

255

795

750

705

655

590

555

130

135

145

150

150

160

EL296DF070XE48B PERFORMANCE (Less Filter)

External Air Volume / Watts at Various Blower Speeds

Static

Pressure in. w.g.

0.00

cfm

1770

High

Watts

510

Medium-High cfm

1550

Watts

340

cfm

1355

Medium

Watts

220

Medium-Low cfm

1255

Watts

180

0.10

0.20

0.30

0.40

1720

1705

1665

1605

520

535

540

555

1510

1470

1430

1390

355

365

380

395

1315

1265

1235

1185

230

245

250

260

1200

1165

1120

1070

185

195

205

210

0.50

0.60

0.70

0.80

1585

1540

N/A

N/A

565

565

N/A

N/A

1335

1300

1260

1220

400

410

420

430

1155

1100

1050

1015

275

290

295

305

1015

970

915

865

225

235

245

255

EL296DF090XE48C PERFORMANCE (Less Filter)

External Air Volume / Watts at Various Blower Speeds

Static

Pressure in. w.g.

0.00

cfm

1765

High

Watts

395

Medium-High cfm

1565

Watts

265

cfm

1410

Medium

Watts

210

Medium-Low cfm

1290

Watts

175

0.10

0.20

0.30

0.40

0.50

1745

1685

1630

1620

1570

410

425

440

450

465

1510

1455

1415

1370

1335

280

295

310

320

330

1365

1310

1285

1245

1185

220

235

250

255

265

1265

1220

1165

1125

1080

185

200

210

220

230

0.60

0.70

0.80

1540

N/A

N/A

470

N/A

N/A

1295

1260

1210

345

355

370

1145

1110

1060

280

295

305

1045

990

940

240

255

260

EL296DF110XE60C PERFORMANCE (Less Filter)

External Air Volume / Watts at Various Blower Speeds

Static

Pressure in. w.g.

0.00

0.10

cfm

2285

2250

High

Watts

640

660

Medium-High cfm

1990

1965

Watts

435

450

cfm

1805

1775

Medium

Watts

330

345

Medium-Low cfm

1685

1630

Watts

265

280

0.20

0.30

2185

2150

675

690

1910

1850

465

485

1720

1670

360

375

1575

1525

295

310

0.40

0.50

0.60

0.70

0.80

2085

2060

2005

1970

1910

710

725

745

760

775

1810

1765

1700

1665

1620

495

515

535

550

560

1605

1565

1510

1460

1420

395

400

420

440

450

1465

1420

1370

1325

1275

325

335

355

370

380

EL296DFE / Page 18 cfm

865

815

785

735

705

650

605

545

485

Low

Watts

95

100

110

115

120

125

135

140

140

cfm

1035

980

895

835

775

690

625

570

520

Low

Watts

115

105

110

120

130

140

145

150

155

cfm

1180

1120

1080

1035

985

925

875

825

760

Low

Watts

135

140

150

160

175

180

190

200

205

cfm

1480

1430

1360

1290

1255

1190

1160

1100

1045

Low

Watts

195

205

215

235

245

255

270

280

295

REVISIONS

REVISIONS

Sections

Vent Lengths - Uninsulated Exhaust Pipe In Unconditioned Space

Description of Change

Added InnoFlue manufactured vent pipe.

Visit us at www.lennox.com

For the latest technical information, www.lennoxdavenet.com

Contact us at 1-800-4-LENNOX

NOTE - Due to Lennox’ ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability.

Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.

Installation and service must be performed by a qualified installer and servicing agency. ©2015 Lennox Industries, Inc.

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