Lennox ELITE EL296DFE Installation Instructions Manual Download Page 11

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Page 11

FURNACE

SUPPLY AIR

PLENUM

COMBUSTIBLE

FLOORING BASE

PROPERLY

SIZED FLOOR

OPENING

FIGURE 15

TABLE 2

COMBUSTIBLE FLOORING BASE OPENING SIZE

Cabinet

Width

Catalog

Number

Front to Rear

Side to Side

B (17.5”)

11M60

559

18-3/4

476

C (21”)

11M61

559

22-3/4

578

2 - After opening is cut, set the combustible flooring

base into opening.

3 - Check fiberglass strips on the combustible flooring

base to make sure they are properly glued and

positioned.

4 - Lower supply air plenum into the 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 16

NOTE -

Downflow combustible flooring kit 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.

COOLING COIL

PLENUM

PROPERLY

SIZED FLOOR

OPENING

FURNACE

FIGURE 16

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 follow

ing steps should be taken when installing plenum:

1 -

Bottom edge of plenum should be flanged with a

hemmed edge (See FIGURE 17 or FIGURE 18).

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

furnace using sheet metal screws.

4 - Make certain that an adequate seal is made.

SECURE FROM

OUTSIDE CABINET

PLENUM

(Field Provided)

SEALING STRIP

(Field Provided)

Side View

CABINET

SIDE PANEL

FIGURE 17

SECURE FROM

INSIDE CABINET

PLENUM

(Field Provided)

SEALING STRIP

(Field Provided)

Side View

CABINET

SIDE PANEL

FIGURE 18

Summary of Contents for ELITE EL296DFE

Page 1: ... metal edges can result in personal injury Take care while handling this equipment and wear gloves and protective clothing 2022 Lennox Industries Inc Dallas Texas USA ELITE SEREIS GAS FURNACE DOWNFLOW AIR DISCHARGE Contents Unit Dimensions inches mm 2 EL296DFE Gas Furnace 3 Shipping and Packing List 3 Safety 3 Use of Furnace as a Construction Heaterl 4 General 5 Combustion Dilution Ventilation Air...

Page 2: ... Side 9 229 Either Side 2 1 4 57 Either Side 1 1 2 38 Front Panel 1 7 8 48 1 25 6 1 4 157 15 381 4 1 2 114 2 1 16 52 5 3 16 132 OPTIONAL LEFT SIDE VENT LOCATION Kit Required ALTERNATE RIGHT SIDE VENT LOCATION Parts Furnished ELECTRICAL INLET Either Side ELECTRICAL INLET Either Side Flue Condensate Trap Assembly Furnished for external field installation on either side of unit See installation instr...

Page 3: ...the following 1 Snap bushing 1 Snap plug 1 Wire tie 1 Condensate trap 1 Condensate trap cap 1 Condensate trap clamp 1 2 diameter Air intake screen 1 3 4 Threaded street elbow 2 2 Street elbows 2 Side vent sealing plates 2 Side vent sealing gaskets 6 Sheet metal screws DANGER Danger of explosion There are circumstances in which odorant used with LP propane gas can lose its scent In case of a leak L...

Page 4: ...ir from entering the furnace If the damper is manually operated it must be equipped to prevent op eration of either the heating or the cooling unit unless it is in the full HEAT or COOL setting 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 Elec tric Code ANSI NFPA No 70 The Nat...

Page 5: ...equired to prevent freezing of condensate drain system CAUTION EL296DFE unit should not be installed in areas normally subject to freezing temperatures Combustion Dilution Ventilation Air If the EL296DFE is installed as a Non Direct Vent Fur nace follow the guidelines in this section NOTE In Non Direct Vent installations combustion air is taken from indoors or ventilated attic or crawlspace and fl...

Page 6: ...w the procedures in the air from outside section Confined Space A confined space is an area with a volume less than 50 cubic feet 1 42 m3 per 1 000 Btu 29 kW per hour of the combined input rating of all appliances installed in that space This definition includes furnace closets or small equipment rooms When the furnace is installed so that supply ducts carry air circulated by the furnace to areas ...

Page 7: ... per hour of the total input rating of all equipment in the enclosure Ventilation Louvers Inlet Air Minimum 12 in 305mm Above attic floor Roof Terminated Exhaust Pipe Furnace Intake Debris Screen Provided FIGURE 6 NOTE The inlet and outlet air openings shall each have a free area of at least one square inch per 4 000 Btu 645mm2per 1 17kW per hour of the total input rating of all equipment in the e...

Page 8: ...FIGURE 10 Installation Setting Equipment WARNING Do not install the furnace on its front back or in the horizontal position See FIGURE 12 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 ...

Page 9: ... 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...

Page 10: ...eep 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 TABLE 1 NON COMBUSTIBLE FLOOR OPENING SIZE Cabinet Width F...

Page 11: ...ons 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 COOLING COIL PLENUM PROPERLY SIZED FLOOR OPENING FURNACE FIGURE 16 Return Air Opening Downflow Units Return air may be bro...

Page 12: ...he supply air duct The access panel should be large enough to per mit inspection of the heat exchanger The furnace access panel must always be in place when the furnace is oper ating and it must not allow leaks into the supply air duct system Return Air Plenum NOTE Return air must not be drawn from a room where this furnace or any other gas fueled appliance i e water heater or carbon monoxide prod...

Page 13: ...an dry cloth for ABS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket 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 manu facturer as part of an approved vent exhaust system In addition the first three feet of vent pipe from the furnace flue collar...

Page 14: ...al screws provided to seal extra two holes in cabinet not used with side vent clamps IMPORTANT Side vent sealing plates and side vent sealing gaskets must be used when converting to right side venting Failure to use gaskets and plates may lead to improper operation of unit Top Vent Configuration Exhaust Air Intake Connections Pipe Clamp Hose Clamp FIGURE 20 Sheet Metal Patch Plate Patch Plate Top ...

Page 15: ...ES YES YES 2 1 2 YES YES 5 YES YES YES 3 YES YES 5 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 Kits must be properly installed according to kit instructions 1Requires field provided outdoor 1 1 2 exhaust accelerator ...

Page 16: ...h 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 distribute 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 ...

Page 17: ...onnected 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...

Page 18: ...tandard 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 10 In some applications which permit the use of several dif ferent sizes of vent pipe a combination vent pipe may be used Contact Lennox Application Department for assis tance...

Page 19: ...4 4 95 95 73 38 118 117 98 98 4 n a 56 41 19 n a 90 90 68 33 113 112 93 93 5 51 36 14 85 85 63 28 108 107 88 88 6 46 31 9 80 80 58 23 101 102 83 83 7 41 26 4 75 75 53 18 98 97 78 78 8 36 21 n a 70 70 48 13 93 92 73 73 9 31 16 65 65 43 8 88 87 68 68 10 26 11 60 60 38 3 83 82 63 63 Standard Termination Elevation 4501 10 000 ft Number Of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model ...

Page 20: ...el Model Model 045 070 090 110 045 070 090 110 045 070 090 110 045 070 090 110 1 15 10 n a n a 63 48 32 n a 95 95 79 44 111 111 104 94 2 10 n a 58 43 27 90 90 74 39 106 106 99 99 3 n a 53 38 22 85 85 69 34 101 101 94 94 4 48 33 17 80 80 64 29 96 96 89 89 5 43 28 12 75 75 59 24 91 91 84 84 6 38 23 7 70 70 54 19 86 86 79 79 7 33 18 2 65 65 49 14 81 81 74 74 8 28 13 n a 60 60 44 9 76 76 69 69 9 23 8 ...

Page 21: ... pipe and intake pipe must be the same diameter 2 TRANSITION 2 1 1 2 045 070 Only DO NOT transition from larger to smaller pipe in horizontal runs of exhaust pipe Exhaust Exhaust FIGURE 27 TYPICAL INTAKE PIPE CONNECTIONS 2 2 TRANSITION 2 3 TRANSITION 3 2 2 or TOP VIEW EXHAUST INTAKE When transitioning up in pipe size use the shortest length of 2 PVC pipe possible NOTE Intake pipe and exhaust pipe ...

Page 22: ...e must be the same diameter Pipe Length 4 Maximum Not Furnished 2 2 Plate Furnished Street Ell Not Furnished FIGURE 29 TRANSITION 2 3 TOP VIEW 2 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 2 Plate Furnished TYPICAL AIR INTAKE PIPE CONNECTIONS WITH RIGHT SIDE VENT OPTION 2 Street Ell Not Furnished FIGU...

Page 23: ...ed in an application with combustion air coming in from a space serviced by an exhaust fan power exhaust fan or other device which may create a negative pressure in the space take care when sizing the inlet air opening The inlet air opening must be sized to accommodate the maximum volume of exhausted air as well as the maximum volume of combustion air required for all gas appliances serviced by th...

Page 24: ... 1 NFPA 54 in U S A and current CSA B149 Natural Gas and Propane Installation Codes in Canada for details Position termination according to location given in FIG URE 35 or FIGURE 36 In addition position termination so it is free from any obstructions and 12 above the average snow accumulation At vent termination care must be taken to maintain protec tive coatings over building materials prolonged ...

Page 25: ...a 7 n a 13 n a 12 n a 3 in 1 1 2 2 8 8 7 7 1Refer to 99 Minimum Design Temperature table provided in the current edition of the ASHRAE Fundamentals Handbook 2 Poly Propylene vent pipe PP by Duravent and Centrotherm 3 Vent length in table is equivalent length Consider each elbow as 5ft of linear length NOTE Concentric terminations are the equivalent of 5 and should be considered when measuring pipe...

Page 26: ...n public property Clearance under veranda porch deck or balcony 12 Equal to or greater than soffit depth 3 feet 9m 12 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 3 feet 9m above if within 10 feet 3m ...

Page 27: ...randa porch deck or balcony 12 7 feet 2 1m 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 pliances 10 000 Btuh 3kw and 50 000 pliances 50 000 Btuh 15kw 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 3 feet 9m abo...

Page 28: ...m separation requirement of intake and exhaust pipe DOES NOT apply 3 On roof terminations the intake piping should terminate straight down using two 90 elbows See FIGURE 37 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 10 T...

Page 29: ...NATION 71M80 69M29 or 60L46 US 44W92 or 44W93 Canada INTAKE AIR EXHAUST AIR INTAKE AIR INTAKE AIR EXHAUST AIR OUTSIDE WALL GRADE CLAMP Not Furnished FIELD PROVIDED REDUCER MAY BE REQUIRED TO ADAPT DIFFERENT VENT PIPE SIZE TO TERMINATION Accelerator not required for 3 concentric FIGURE 41 EXHAUST VENT INTAKE AIR 5 1 2 140mm Front View 12 305mm 5 127mm 18 MAX 457mm EXHAUST VENT INTAKE AIR OPTIONAL V...

Page 30: ...tective 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 3 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 inl...

Page 31: ...haust pipe terminations on multiple furnaces must meet local codes NOTE Do tical discharge through an existing unused chimney or stack is required insert piping inside trated In any exterior portion of chimney the exhaust vent must be insulated STRAIGHT CUT OR ANGLE CUT IN DIRECTION OF ROOF SLOPE SHOULDER OF FITTINGS PROVIDE SUPPORT OF PIPE ON TOP PLATE EXTERIOR PORTION OF CHIMNEY INSULATE TO FORM...

Page 32: ... 53 The field provided vent must be a minimum 1 to a maximum 2 length above the condensate drain outlet connection 6 If unit will be started immediately upon completion of installation prime trap per procedure outlined in Unit Start Up section Condensate line must slope downward away from the trap to drain If drain level is above condensate trap condensate pump must be used Condensate drain line s...

Page 33: ...ieve pressure in order for the furnace pressure switch to operate properly Furnace with Evaporator Coil Using a Common Drain Field Provided Vent 1 min 2 max above condensate drain Evaporator Drain Line vent required Condensate Drain Connection FIGURE 52 HorizontalFurnace4 Min to 5 Max above condensatedrain connection FurnaceCondensate DrainConnection From Evaporator Coil Optional Condensate Trap W...

Page 34: ...ection In Unit Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Optional Condensate Drain Connection OptionalDrainPipingFromTrap DrainTrapAssembly Furnished DrainTrap Assembly with 1 2 inch Piping DrainTrap Assembly with 3 4 inch Piping 1 2 inch 3 4 inch 1 25 mm Min 2 50 mm Max Above Top Of Condensate Drain Connection In Unit 1 25 mm Min 2 50 mm Max Above Top O...

Page 35: ...plugged tap or pressure post is located on the gas valve to facilitate test gauge connection See FIGURE 62 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 ga...

Page 36: ... 930 360 10 19 247 7 000 199 5 63 170 4 81 151 4 23 137 3 87 126 3 56 117 3 31 110 3 11 104 2 94 1 25 4 1 049 26 645 678 19 19 466 13 19 374 10 59 320 9 06 284 8 04 257 7 27 237 6 71 220 6 23 207 5 86 195 5 52 1 1 4 31 75 1 380 35 052 1350 38 22 957 27 09 768 22 25 657 18 60 583 16 50 528 14 95 486 13 76 452 12 79 424 12 00 400 11 33 1 1 2 38 1 1 610 40 894 2090 59 18 1430 40 49 1150 32 56 985 27 ...

Page 37: ...ervicing at a later date Make sure that thermostat wire is long enough to facilitate future removal of blower for service Complete the wiring connections to the equipment Use 18 gauge wire or larger that is suitable for Class II rating for thermostat connections Electrically ground the unit according to local codes or in the absence of local codes according to the current National Electric Code AN...

Page 38: ...oard Link W914 Dehum On board link W914 is a clippable connection between terminals R and DS on the integrated control W914 must be cut when the furnace is installed with a thermostat which features humidity control If the link is not cut termi nal DS will remain energized not allowing the blower to reduce to low cool speed upon a call for dehumidification On Board Link W951 Heat Pump R to O On bo...

Page 39: ...TAGE COOL SIGNAL Y2 THERMOSTAT 2ND STAGE COOL SIGNAL O THERMOSTAT SIGNAL TO HEAT PUMP REVERSING VALVE L NOT USED DH NOT USED HUM UNPOWERED NORMALLY OPEN DRY CONTACTS LI 120 VAC INPUT TO CONTROL ACC 120 VAC OUTPUT TO OPTIONAL ACCESSORY NEUTRALS 120 VAC NEUTRAL 3 16 QUICK CONNECT TERMINALS FLAME SENSE SIGNAL HI Cool 24VAC HI HEAT 24VAC LO COOL 24VAC LO HEAT 24VAC PARK PARK COMMON 24VAC Flame Sense S...

Page 40: ...n powered normally open dry contacts ACC 120VAC output terminal for optional accessory L1 three 120VAC line terminals Neutrals five 120VAC neutral terminals THERMOSTAT CONNECTIONS DS Dehumidification signal W2 Heat demand from 2nd stage Tstat W1 Heat demand from 1st stage Tstat white R Class 2 voltage to thermostat G Manual fan from Tstat green C Tstat signal ground connected to transformer Ground...

Page 41: ...ore secondstage heat is initiated If the switch is toggled to the ON position it will provide a 12 minute delay before secondstage heat is initiated This switch is only activated when the thermostat selector jumper is positioned for SIN GLEstage thermostat use Indoor Blower Operation DIP Switch Settings Switch es 3 and 4 Heating Mode Blower Off Delay The blower on delay of 30 seconds is not adjust...

Page 42: ... ON DO NOT CUT ANY ON BOARD LINKS S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 1 Heat 2 Cool NOTE Use DIP switch 2 to set second stage heat ON delay OFF 7 minutes ON 12 minutes ON CUT ON BOARD LINK W915 2 STAGE COMPR S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 1 Heat 2 Cool with t stat with humidity control NOTE Use DIP switch 2 to set second stage heat ON delay OFF 7 minutes ON 12 minutes ON CUT ON BO...

Page 43: ...2 STAGE COMPR S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 2 Heat 2 Cool with t stat with humidity control OFF CUT ON BOARD LINK W915 2 STAGE COMPR CUT ON BOARD LINK W914 DEHUM OR HARMONY S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT o 2 Heat 1 Cool with t stat with humidity control OFF CUT ON BOARD LINK W914 DEHUM OR HARMONY S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT o 2 Heat 1 Cool OFF DO NOT CUT ANY ON...

Page 44: ...N BOARD LINK W951 HEAT PUMP T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor Dual Fuel Two Stage Heat Pump ComfortSense thermostat w bilities Capable of 2 stage gas heat control OFF CUT ON BOARD LINK W951 HEAT PUMP CUT ON BOARD LINK W915 2 STAGE COMPR FURNACE TERM STRIP HEAT PUMP out blue 67M41 H L Y2 D B L Y2 T T outdoor sensor T STAT Connect W1 to W1 ONLY if using d...

Page 45: ...RD LINK W914 DEHUM OR HARMONY T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor Dual Fuel Two Stage Heat Pump ComfortSense thermostat w bilities Capable of 2 stage gas heat midification OFF CUT ON BOARD LINK W914 DEHUM OR HARMONY CUT ON BOARD LINK W951 HEAT PUMP CUT ON BOARD LINK W915 2 STAGE COMPR T STAT FURNACE TERM STRIP HEAT PUMP 67M41 H L Y2 D B L Y2 T T outdoor s...

Page 46: ...Page 46 Wiring Diagram With Integrated Control 103699 XX FIGURE 60 ...

Page 47: ...G INSULATION THICKNESS AND TERMINATION K1 K4 K7 K8 8 8 HI W914 W915 2 3 1 43 AMP WHITE RODGERS VALVE CUT W914 JUMPER LABELED DEHUM FROM DS TO R AT A92 CONTROL BOARD WHEN USED WITH ComfortSense 7000 THERMOSTAT R NOTE SEE INSTALLATION INSTRUCTIONS FOR PROCEDURE TO SET CORRECT BLOWER SPEED FOR SPECIFIC COOLING TONNAGE BEING APPLIED AND HEATING TEMPERATURE RISE REQUIRED TYPICAL SYSTEM SHOWN FOR 2 HEAT...

Page 48: ...t the thermostat to initiate a heating demand 3 Allow the burners to fire for approximately 3 minutes 4 Adjust the thermostat to deactivate the heating demand 5 Wait for the combustion air inducer to stop Set the thermostat to initiate a heating demand and again allow the burners to fire for approximately 3 minutes 6 Adjust the thermostat to deactivate the heating demand and wait for the combustio...

Page 49: ...ding shut off all other gas appliances connected to meter Furnace should operate at least 5 minutes before check ing gas flow Determine time in seconds for two revolu tions of gas through the meter Two revolutions assures a more accurate time Divide by two and compare to time in TABLE 16 If manifold pressure matches TABLE 18 and rate is incorrect check gas orifices for proper size and restriction ...

Page 50: ...ressure switch is factory set and re quires no adjustment TABLE 18 Manifold and Supply Line Pressure 0 10 000ft Unit Gas Manifold Pressure in wg Supply Line Pressure in w g 0 10 000 ft 0 4500 ft 4501 5500 ft 5501 6500 ft 6501 7500 ft 7501 10 000 ft Low Fire High Fire Low Fire High Fire Low Fire High Fire Low Fire High Fire Low Fire High Fire Min Max All Sizes Natuarl 1 7 3 5 1 6 3 3 1 5 3 2 1 5 3 ...

Page 51: ...m 2 Visuallyinspecttheventingsystemforpropersizeand horizontal pitch Determine there is no blockage or restriction leakage corrosion or other deficiencies which could cause an unsafe condition 3 To the extent that it is practical close all building doors and windows and all doors between the space in which the appliances connected to the venting system are located and other spaces of the building ...

Page 52: ...1 On a call for heat thermostat first stage contacts close sending a signal to the integrated control The integrated control runs a self diagnostic program and checks high temperature limit switches for normally closed contacts and pressure switches for normally open contacts The combustion air inducer is energized at low speed 2 Once the control receives a signal that the low pressure switch has ...

Page 53: ...er begins a 5 second low speed post purge The field selected indoor blower off delay begins The indoor blower operates at the low fire heating speed 7 When the combustion air post purge period is complete the inducer and the HUM contacts are de energized The indoor blower is de energized at the end of the off delay as well as the 120V ACC terminal Service WARNING ELECTRICAL SHOCK FIRE OR EXPLOSION...

Page 54: ...perating at the specified firing rate for each stage of operation Check the supply pressure and the manifold pressure on both low fire and high fire If manifold pressure adjustment is necessary consult the Service Literature for unit specific information on adjusting gas pressure Not all gas valves are adjustable Verify correct temperature rise Winterizing and Condensate Trap Care 1 Turn off power...

Page 55: ...alled Properly Pipes Supported Condensate Trap Primed Line Sloped Heat Cable Installed and Operable if applicable 2 2 2 1 Horizontal Pipes Sloped if applicable UNIT SET UP typical 3 4 Flter RETURN AIR Furnace Model Number_______________ Serial Number_________________ 3 DUCT SYSTEM SUPPLY AIR DUCT Sealed Insulated if necessary RETURN DUCT Sealed Filter Installed and Clean Grilles Unobstructed 4 VOL...

Page 56: ... 5 Supply External Static _______ Return External Static ______ Total External Static _______ CONDENSATE LINE 6 Leak Free VENT PIPE 7 Leak Free COOLING MODE INDOOR BLOWER AMPS______ 3 TEMPERATURE DROP Return Duct Temperature _________ Supply Duct Temperature _ _______ Temperature Drop _________ 4 DRAIN LINE 8 Leak Free THERMOSTAT Adjusted and Programmed Explained Operation to Owner 9 SUPPLY AIR Bl...

Page 57: ... eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the in...

Page 58: ...t should be oriented such that the ex haust plume is unobjectionable If the installation requires more separation between the flue gases and the building structure a reducer may be installed on the exhaust pipe to increase the flue gas velocity Addendum For All Porvinces Of Canada See below for venting in all provinces of Canada Lennox approves the following termination for use in all provices of ...

Page 59: ...5 150 605 135 0 70 N A N A 1020 310 915 250 590 150 545 140 0 80 N A N A 980 315 860 255 555 160 485 140 EL296DF070XE48B PERFORMANCE Less Filter External Static Pressure in w g Air Volume Watts at Various Blower Speeds High Black Medium High Brown Medium Blue Medium Low Yellow Low Red cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts 0 00 1770 510 1550 340 1355 220 1255 180 1035 115 0 10 1720 520 ...

Page 60: ... 240 875 190 0 70 N A N A 1260 355 1110 295 990 255 825 200 0 80 N A N A 1210 370 1060 305 940 260 760 205 EL296DF110XE60C PERFORMANCE Less Filter External Static Pressure in w g Air Volume Watts at Various Blower Speeds High Black Medium High Brown Medium Blue Medium Low Yellow Low Red cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts 0 00 2285 640 1990 435 1805 330 1685 265 1480 195 0 10 2250 66...

Page 61: ...d Yellow Blue Brown Black 045XE36B Allowed Factory Setting Not Allowed Not Allowed Not Allowed Not Allowed Allowed Allowed Allowed Allowed 070XE48B Allowed 090XE48C 110XE60C Not Allowed TABLE 21 Allowable Circulation Speeds EL296DF Model Number Red Yellow Blue Brown Black All Models Allowed Factory Setting Not Allowed Not Allowed Not Allowed ...

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