Lennox International Inc EL296UHE Joint Cementing Procedure, Piping and Fittings Specifications

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CAUTION

Solvent cements for plastic pipe are flammable liq­ uids 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 ce­ ment with skin and eyes.

TABLE 2

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)

D2661

(Pipe & Fittings)

 

 

 

PVC-DWV (Drain Waste & Vent)

D2665

Pipe & Fittings)

 

 

 

PRIMER & SOLVENT CEMENT

ASTM

SPECIFICATION

 

 

 

 

 

PVC & CPVC Primer

F656

 

 

PVC Solvent Cement

D2564

 

 

CPVC Solvent Cement

F493

 

 

ABS Solvent Cement

D2235

 

 

PVC/CPVC/ABS All Purpose Cement For

D2564, D2235, F493

Fittings & Pipe of the same material

 

 

 

ABS to PVC or CPVC Transition Solvent

D3138

Cement

 

 

 

CANADA PIPE & FITTING & SOLVENT

MARKING

CEMENT

 

 

 

 

 

PVC & CPVC Pipe and Fittings

 

 

 

PVC & CPVC Solvent Cement

ULCS636

 

ABS to PVC or CPVC Transition Cement

 

IMPORTANT

EL296UHE 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 con­ nections to the PVC fittings in the unit.

Use PVC primer and solvent cement or ABS solvent cement meeting ASTM specifications, refer to Table 2. As an alter­ nate, use all purpose cement, to bond ABS, PVC, or CPVC pipe when using fittings and pipe made of the same materi­ als. Use transition solvent cement when bonding ABS to ei­ ther PVC or CPVC.

Low temperature solvent cement is recommended during installation in cooler weather. Metal or plastic strapping may be used for vent pipe hangers. 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.

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

Joint Cementing Procedure

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

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.

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.

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

3 - Clean and dry surfaces to be joined.

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

NOTE - Time is critical at this stage. Do not allow prim­ er to dry before applying cement.

6 - Promptly apply solvent cement to end of pipe and in­ side socket surface of fitting. Cement should be ap­ plied lightly but uniformly to inside of socket. Take care to keep excess cement out of socket. Apply sec­ ond coat to end of pipe.

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 dur­ ing assembly (but not after pipe is fully inserted) to dis­ tribute cement evenly. DO NOT turn ABS or cellular core pipe.

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

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Contents Installation Instructions EL296UHE Table of ContentsEL296UHE Unit Dimensions inches mm TOP ViewShipping and Packing List Safety InformationEL296UHE Gas Furnace Package 1 of 1 containsUse of Furnace as Construction Heater Installation LocationsInstalled in Combination with a Cooling Coil General Combustion, Dilution & Ventilation AirUnconfined Space Confined SpaceAir from Inside Equipment in Confined Space ALL AIR from InsideEquipment in Confined Space Air from OutsideEquipment in Confined Space ALL AIR from Outside Moved before the furnace is placed into operation. Af­ Installation Setting EquipmentShipping Bolt Removal EL296 Furnaces with 1/2 HP Blower MotorSide View Setting EquipmentFront View END ViewReturn Air Guidelines Side Return Air With transition and filterFrontBack Optional Return Air Base Upflow Applications OnlyRemoving the Bottom Panel Platform Installation of Horizontal Unit Horizontal Application Installation ClearancesSuspended Installation of Horizontal Unit Horizontal Suspension KITDuct System Pipe & Fittings SpecificationsFilters Specification Joint Cementing ProcedurePiping and Fittings Specifications Primer & Solvent CementWall Thickness Guidelines Venting PracticesPiping Suspension Guidelines Removal of the Furnace from Common VentExhaust Piping Figures 22, 24 Horizontal Installation Offset RequirementsVent Piping Guidelines Minimum Vent Pipe LengthsPiping Size Process Outdoor Termination Usage Standard ConcentricStandard Termination Elevation 4500 10,000 ft 135Concentric Termination Elevation 4501 10,000 ft Maximum Allowable Intake or Exhaust Vent Length in FeetConcentric Termination at Elevation 0 4500 ft Standard Termination Elevation 4500 10,000 ft Applications Right Hand Discharge Shown Intake Piping General Guidelines for Vent Terminations 32 to 20 to US Installations1 Canadian Installations2 Inside Corner DetailNo minimum to outside corner EL296UHE Exiting Exhaust and Intake Vent Different pressure zonesDirect Vent Roof Termination KIT Alternate Terminations Tee & Forty-Five Degree Elbows Only 51MM 76MM51MM 7MM Vent Pipe SupportTop View Side ViewFront View Exhaust EL296UHE Direct Vent Application Using Existing Chimney NON-DIRECT Vent Roof Termination KITEL296UHE NON-DIRECT Vent Application Using Existing Chimney Condensate PipingCondensate Trap With Optional Overflow Switch Condensate Trap LocationsEL296UHE with Evaporator Coil Using a Common Drain Unit shown in horizontal left-hand discharge positionTrap / Drain Assembly Using 1/2 PVC or 3/4 PVC 178Plugged TAP Gas PipingLeak Check Horizontal Applications Possible Gas Piping Configurations Left Side Piping Standard Right Side Piping AlternateElectrical Precautions and ProceduresInterior MAKE-UP BOX Installation GAS Pipe Capacity FT3/HR kL/HROn-Board Links and Diagnostic Push Button Figure Typical EL296UHE Wiring Diagram Integrated Control LEDIntegrated Control DIP Switch Settings EL296 Field Wiring Applications With Conventional Thermostat Humidity control OFFWith tstat with Heat / 1 CoolComfortSense Single StageHeat Pump 7000 L7724UOFF For Your Safety Read Before Operating Unit Start-UpDial Gas Pressure AdjustmentGAS Meter Clocking Chart Proper Combustion High Altitude Information Carbon Monoxide Poisoning Hazard Other Unit Adjustments Heating Sequence of OperationControl Panel Parts Repair Parts ListCabinet Parts Blower PartsBlower ServiceCleaning The Burner Assembly FiltersStart-Up & Performance Check List TypicalCondensate Line Thermostat Temperature RiseTotal External Static Drain Line Vent PipeRequirements for Commonwealth of Massachusetts Approved Carbon Monoxide Detectors

EL296UHE, Elite Series Gas Furnace specifications

Lennox International Inc. has long been a trusted name in the heating, ventilation, and air conditioning (HVAC) industry, and their Elite Series Gas Furnace, the EL296UHE, stands out as a remarkable choice for homeowners seeking efficiency and reliability. This gas furnace is designed to deliver exceptional performance while ensuring the comfort of your living space.

One of the most significant features of the EL296UHE is its impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 96%. This means that a substantial portion of the energy consumed is converted into heat, translating to lower energy bills and a reduced environmental footprint. By minimizing energy waste, homeowners can enjoy both cost savings and greater environmental responsibility.

The EL296UHE is equipped with a two-stage heating process that allows it to operate at different speeds. This dual-stage functionality offers a more consistent temperature throughout the home, minimizing cold spots and enhancing overall comfort. Additionally, this furnace features a variable-speed blower motor, which not only improves the distribution of heated air but also quietly adjusts the airflow to match the heating requirements of your space.

In terms of technology, the EL296UHE incorporates advanced design elements such as a patented ZenBalance™ technology. This innovation further increases efficiency by adjusting the heating output based on real-time demands, ensuring optimal comfort without excessive energy consumption.

Durability is another hallmark of the EL296UHE. Constructed with high-quality materials, this furnace is built to withstand the rigors of daily use. Its stainless-steel heat exchanger is particularly noteworthy, as it enhances the furnace's ability to operate efficiently while maximizing longevity.

Homeowners are also reassured by the EL296UHE's quiet operation. The design minimizes operational noise, making it an ideal choice for those who prefer a peaceful home environment. Furthermore, the furnace is equipped with an ENERGY STAR® certification, a testament to its energy-efficient performance.

Lastly, Lennox offers comprehensive warranties for the EL296UHE, ensuring peace of mind for consumers. The combination of high efficiency, advanced technology, and durability makes the Lennox Elite Series Gas Furnace, EL296UHE, an excellent investment for homeowners looking to enhance their heating systems for optimal comfort and efficiency.
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