Lennox ELITE Series Installation Instructions Manual
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Lennox ELITE Series Installation Instructions Manual

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E 2011 Lennox Industries Inc.
Dallas, Texas, USA
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INSTALLATION
INSTRUCTIONS
EL195UH
®
ELITE
SERIES GAS FURNACE
UPFLOW / HORIZONTAL AIR DISCHARGE
506596−01
03/2011
Supersedes 02/2011
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.
As with any mechanical equipment, personal injury
can result from contact with sharp sheet metal
edges. Be careful when you handle this equipment.
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person-
al injury or loss of life. Installation and service must
be performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.

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  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS E 2011 Lennox Industries Inc. Dallas, Texas, USA EL195UH ® ELITE SERIES GAS FURNACE UPFLOW / HORIZONTAL AIR DISCHARGE 506596−01 Litho U.S.A. 03/2011 Supersedes 02/2011 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE This is a safety alert symbol and should never be ignored.

  • Page 2: Unit Dimensions

    EL195UH Unit Dimensions − inches (mm) EXHAUST AIR 3−1/4 NOTE − 60C size units that require air volumes OUTLET (83) 1800 cfm or over (850 L/s) must have one of the following 1−7/8 (48) 1. Single side return air with transition, to accommodate 20 x 25 x 1 in.

  • Page 3: El195Uh Parts Arrangement

    EL195UH Parts Arrangement EL195UH PARTS IDENTIFICATION FLEXIBLE NO−HUB EXHAUST COLLAR BURNER BOX ASSEMBLY TOP CAP GAS VALVE DuralokPlus HEAT EXCHANGER ASSEMBLY COMBUSTION AIR INDUCER BAG ASSEMBLIES (shipping location) PRIMARY LIMIT COLD END OUTER HEADER BOX ACCESS BLOWER PANEL ASSEMBLY COMBUSTION AIR PRESSURE SWITCH CONTROL BOX...

  • Page 4: El195Uh Gas Furnace

    1 − Thermostat EL195UH Gas Furnace 1 − LP/Propane changeover kit The EL195UH Category IV gas furnace is shipped ready 1 − Return air base kit for installation in the upflow or horizontal position. The fur- 1 − Horizontal suspension kit nace is shipped with the bottom panel in place.

  • Page 5: Use Of Furnace As A Construction Heater

    Use of Furnace as Construction Heater from entering the furnace. If the damper is manually oper- Lennox does not recommend the use of EL195UH units as ated, it must be equipped to prevent operation of either the a construction heater during any phase of construction.

  • Page 6: General

    Combustion, Dilution and Ventilation Air in a available from address shown below, or contact your confined space with air from outside. supervisor. Lennox Industries Inc. The furnace heat exchanger, components, duct system, P.O. Box 799900 air filters and evaporator coils must be thoroughly Dallas, TX 75379−9900...
  • Page 7 tion, negative pressure (outside pressure is greater than infiltration. If the furnace is located in a building of tight inside pressure) will build to the point that a downdraft construction with weather stripping and caulking around can occur in the furnace vent pipe or chimney. As a result, the windows and doors, follow the procedures in the Air combustion gases enter the living space creating a po- from Outside section.
  • Page 8 Air from Outside When ducts are used, they shall be of the same cross−sec- tional area as the free area of the openings to which they If air from outside is brought in for combustion and ventila- connect. The minimum dimension of rectangular air ducts tion, the confined space shall be provided with two perma- shall be no less than 3 inches (75 mm).

  • Page 9: Setting Equipment

    Shipping Bolt Removal Installation − Setting Equipment Units with 1/2 hp blower motor are equipped with three flex- WARNING ible legs and one rigid leg. The rigid leg is equipped with a shipping bolt and a flat white plastic washer (rather than the Do not connect the return air duct to the back of the furnace.
  • Page 10 Return Air Guidelines WARNING Return air can be brought in through the bottom or either Improper installation of the furnace can result in per- side of the furnace installed in an upflow application. If the sonal injury or death. Combustion and flue products furnace is installed on a platform with bottom return, make must never be allowed to enter the return air system an airtight seal between the bottom of the furnace and the...
  • Page 11 Optional Return Air Base (Upflow Applications Only) FURNACE FRONT 23 (584) IF BASE 3−1/4 IS USED Overall (83) (Maximum) Minimum WITHOUT 11 (279) IAQ CABINET, INDOOR AIR A SINGLE Maximum 22−7/16 QUALITY Unit side return air RETURN AIR 14 (356) (570) CABINET PLENUM...
  • Page 12 17. A horizontal suspension 4 − Route auxiliary drain line so that water draining from kit (51W10) may be ordered from Lennox or use equiva- lent. this outlet will be easily noticed by the homeowner.

  • Page 13: Filters

    5 − If necessary, run the condensate line into a conden- NOTE − This furnace is not certified for operation in heating mode (indoor blower operating at selected heating speed) sate pump to meet drain line slope requirements. The with an external static pressure which exceeds 0.5 inches pump must be rated for use with condensing furnaces.
  • Page 14 CAUTION IMPORTANT Solvent cements for plastic pipe are flammable liq- EL195UH exhaust and intake connections are made uids and should be kept away from all sources of of PVC. Use PVC primer and solvent cement when ignition. Do not use excessive amounts of solvent using PVC vent pipe.

  • Page 15: Joint Cementing Procedure

    TABLE 3 OUTDOOR TERMINATION KITS USAGE STANDARD CONCENTRIC Outdoor Outdoor Exhaust Exhaust Flush- 1−1/2" 2" 3" 2" Wall Plate 3" Wall Plate 2" Wall VENT Mount Concentric Concentric Concentric Accelerator Accelerator Ring Kit EL195 PIPE (Dia. X (Dia. X UNIT DIA.

  • Page 16: Venting Practices

    NOTE − Assembly should be completed within 20 sec- REPLACING FURNACE THAT onds after last application of cement. Hammer blows CHIMNEY WAS PART OF A COMMON OR GAS should not be used when inserting pipe. VENT VENT SYSTEM (Check sizing 8 −...

  • Page 17: Vent Piping Guidelines

    Refer to table 6. In some applications which permit the use of several differ- ent sizes of vent pipe, a combination vent pipe may be used. Contact Lennox’ Application Department for assis- Which needs Intake or tance in sizing vent pipe in these applications.
  • Page 18 TABLE 5 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. Standard Termination at Elevation 0 − 4500 ft 2"...
  • Page 19 TABLE 5 Continued 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 ft 2"...
  • Page 20 TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT OR NON−DIRECT VENT APPLICATIONS EXHAUST INTAKE EXHAUST INTAKE 2” 2” 2” 2” 3” 3” TRANSITION TRANSITION 2” 2” *2” *2” DO NOT transition from smaller to larger pipe in horizontal runs of exhaust pipe.
  • Page 21 Intake Piping TYPICAL AIR INTAKE PIPE CONNECTIONS The EL195UH furnace may be installed in either direct HORIZONTAL NON−DIRECT VENT APPLICATIONS (Horizontal Right−Hand Air Discharge Application Shown) vent or non−direct vent applications. In non−direct vent applications, when intake air will be drawn into the furnace from the surrounding space, the indoor air quality must be considered and guidelines listed in Combustion, Dilution PVC pipe...
  • Page 22 National Fuel to prevent freeze−ups. Heating cable installation kit is Gas Code ANSI Z223−1/NFPA 54 in U.S.A., and current available from Lennox. See Condensate Piping section CSA−B149 Natural Gas and Propane Installation Codes in for part numbers.
  • Page 23 ‡ 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. FIGURE 26 Page 23 Downloaded from ManualsNet.com...
  • Page 24 ‡ 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. FIGURE 27 Page 24 Downloaded from ManualsNet.com...
  • Page 25 Details of Intake and Exhaust Piping Terminations for TABLE 6 EXHAUST PIPE TERMINATION SIZE REDUCTION Direct Vent Installations EL195UH Termination NOTE − In Direct Vent installations, combustion air is tak- Exhaust Pipe Size MODEL Pipe Size en from outdoors and flue gases are discharged to out- 1−1/2"...
  • Page 26 Intake Front View of Intake and Exhaust Exhaust Intake Exhaust TABLE 7 2" (51mm) 3" (76mm) Vent Pipe Vent Pipe A− Clearance above grade or average snow 12" (508MM) Min. 12" (508MM) Min. accumulation B−Horizontal 6" (152MM) Min. 6" (152MM) Min. separation between 24"...
  • Page 27 FIELD−SUPPLIED WALL TERMINATION OR FIELD−SUPPLIED WALL TERMINATION OR (15F74) WALL RING TERMINATION KIT (15F74) WALL RING TERMINATION KIT With INTAKE ELBOW NOTE − FIELD−PROVIDED NOTE − FIELD−PROVIDED REDUCER MAY BE REDUCER MAY BE 1/2" (13mm) ARMAFLEX 1/2" (13mm) ARMAFLEX REQUIRED TO ADAPT REQUIRED TO ADAPT INSULATION IN UN- INSULATION IN UN-...
  • Page 28 2" EXTENSION FOR 2" PVC PIPE1" EXTENSION FOR 3" 12" PVC PIPE EXHAUST (305mm) FURNACE VENT 5−1/2" 5" (140mm) EXHAUST (127mm) 4’’ PIPE INTAKE 18" MAX. FURNACE Front View (457mm) INTAKE PIPE EXHAUST VENT 12" (305mm) Min. GLUE EXHAUST above grade or END FLUSH INTO average snow TERMINATION...
  • Page 29 WALL TERMINATION KITS (CLOSE−COUPLE) EXTENDED VENT FOR GRADE CLEARANCE 2 inch (51 mm) 22G44 (US) 3 inch (76 mm) 44J40 (US) If intake and exhaust pipe is less than 12 in. (305 mm) above snow accumulation or other obstructions, field− fabricated piping must be installed.
  • Page 30 EL195UH DIRECT VENT APPLICATION 12" (305mm) MAX. for 2" (51mm) 20" (508mm) MAX. for 3" (76mm) USING EXISTING CHIMNEY 1/2" (13mm) ARMAFLEX STRAIGHT−CUT OR INSULATION IN ANGLE−CUT IN DIRECTION 3"−8" UNCONDITIONED SPACE 1/2" (13mm) OF ROOF SLOPE * (76mm−203mm) ARMAFLEX FIELD−PROVIDED INSULATION REDUCER MAY...
  • Page 31 CONDENSATE TRAP AND PLUG LOCATIONS EL195UH NON−DIRECT VENT APPLICATION (Unit shown in upflow position) USING EXISTING CHIMNEY Trap SIZE TERMINATION STRAIGHT−CUT OR (same on ANGLE−CUT IN DIRECTION PIPE PER TABLE 6. OF ROOF SLOPE right side) 1−1/2 in. EXHAUST VENT 1/2"...
  • Page 32 Heating cable kit is CAUTION available from Lennox in various lengths; 6 ft. (1.8m) − kit no. 26K68; 24 ft. (7.3m) − kit no. 26K69; and 50 ft. A separate drain line must be run to the drain from (15.2m) −...
  • Page 33 TRAP / DRAIN ASSEMBLY USING 1/2" PVC OR 3/4" PVC OPTIONAL Condensate Drain Connection Adapter 1/2 inch slip X Adapter 1/2 inch slip X 1/2 inch mpt (Not Furnished) Condensate Drain 1/2 inch mpt (Not Furnished) Connection In Unit Vent 90°...

  • Page 34: Gas Piping

    6 − In some localities, codes may require installation of a Gas Piping manual main shut-off valve and union (furnished by in- Gas supply piping should not allow more than 0.5"W.C. drop staller) external to the unit. Union must be of the in pressure between gas meter and unit.
  • Page 35 Left Side Piping Right Side Piping (Standard) (Alternate) Bellows Grommet MANUAL MAIN SHUT−OFF MANUAL VALVE Plug Plug MAIN SHUT−OFF VALVE GROUND GROUND JOINT JOINT UNION UNION DRIP LEG Gas Valve Gas Valve Bellows Grommet DRIP LEG FIELD PROVIDED AND INSTALLED NOTE −...
  • Page 36 TABLE 8 GAS PIPE CAPACITY − FT /HR (kL/HR) Length of Pipe−Feet(m) Nominal Internal Iron Pipe Size Diameter −Inches(mm) −Inches(mm) (3.048) (6.096) (9.144) (12.192) (15.240) (18.288) (21.336) (24.384) (27.432) (30.480) .622 (12.7) (17.799) (4.96) (3.40) (2.75) (2.32) (2.07) (1.87) (1.73) (1.61) (1.50) (1.42)

  • Page 37: Electrical

    Refer to figure 56 for field wiring and figure 57 for schematic Electrical wiring diagram and troubleshooting. ELECTROSTATIC DISCHARGE (ESD) The power supply wiring must meet Class I restrictions. Precautions and Procedures Protected by either a fuse or circuit breaker, select circuit protection and wire size according to unit nameplate.
  • Page 38 One 24V "H" 1/4" spade terminal is provided on the furnace Install the room thermostat according to the instruc- tions provided with the thermostat. See figure 55 for integrated control. See figure 58 for integrated control con- thermostat designations. If the furnace is being figuration.
  • Page 39 TYPICAL EL195UH WIRING DIAGRAM FIGURE 57 Page 39 Downloaded from ManualsNet.com search engine...

  • Page 40: Unit Start Up

    INTEGRATED CONTROL (Automatic Hot Surface Ignition System) TERMINAL DESIGNATIONS Humidifier (120VAC) Input (120VAC) LINE Transformer (120VAC) XFMR Indoor Air Quality Accessories (120VAC) Blower − Cooling Speed (120VAC) COOL Blower − Heating Speed (120VAC) HEAT Dead terminals to park alternate speed taps PARK Flame sensor FLAME...
  • Page 41 Priming Condensate Trap 9 − Replace the access panel. The condensate trap should be primed with water prior to 10− Turn on all electrical power to to the unit. start−up to ensure proper condensate drainage. Either 11− Set the thermostat to desired setting. pour 10 fl.

  • Page 42: Gas Pressure Measurement

    3 − While waiting for the unit to stabilize, observe the Gas Pressure Adjustment flame. Flame should be stable and should not lift from Gas Flow (Approximate) burner. Natural gas should burn blue. 4 − After allowing unit to stabilize for 5 minutes, record TABLE 9 manifold pressure and compare to value given in table GAS METER CLOCKING CHART...
  • Page 43 TABLE 12 LP/Propane Conversion Kit and Pressure Switch Requirements at Varying Altitudes High Altitude High Altitude Natural to Natural Burner LP/Propane Burner High Altitude Pressure Switch LP/Propane EL195 Orifice Kit Orifice Kit Unit 0 − 7500 ft 7501 − 10,000 ft 7501 −...

  • Page 44: Other Unit Adjustments

    Other Unit Adjustments HEAT FAN-OFF TIME IN SECONDS NOTE − See troubleshooting flow charts if any safety switches are found to be open. Primary Limit. The primary limit is located on the heating compartment NO JUMPER vestibule panel. This limit is factory set and requires no ad- To adjust fan−off timing, reposition jumper across pins to justment.

  • Page 45: Blower Motor Performance

    BLOWER DATA EL195UH045P24B PERFORMANCE (Less Filter) EL195UH070P48B PERFORMANCE (Less Filter) Air Volume / Watts at Various Blower Speeds Air Volume / Watts at Various Blower Speeds External External Medium- Medium- Medium- Medium- Static Static High High High High Pressure Pressure in.
  • Page 46 BLOWER DATA EL195UH090P60C PERFORMANCE (Less Filter) Air Volume / Watts at Different Blower Speeds Bottom Return Air, Side Return Air with Optional Return Single Side Return Air − Air volumes in bold require field External Air Base, Return Air from Both Sides or Return Air from fabricated transition to accommodate 20 x 25 x 1 in.

  • Page 47: Service

    2 − Have a shallow pan ready to empty condensate water. Service 3 − Remove the clean out cap from the condensate trap and empty water. Inspect the trap then reinstall the clean out cap. WARNING Cleaning Heat Exchanger ELECTRICAL SHOCK, FIRE, If cleaning the heat exchanger becomes necessary, follow OR EXPLOSION HAZARD.
  • Page 48 21 − Remove screws along vestibule sides and bottom 44 − Replace the blower compartment access panel. which secure vestibule panel and heat exchanger as- 45 − Reconnect gas supply piping. Turn on power and gas sembly to cabinet. Remove two screws from blower supply to unit.

  • Page 49: Planned Service

    Return air duct − Must be properly attached and provide Planned Service an air seal to the unit. A service technician should check the following items dur- Operating performance − Unit must be observed during ing an annual inspection. Power to the unit must be shut off operation to monitor proper performance of the unit and the for safety.

  • Page 50: Troubleshooting

    Troubleshooting: Heating Sequence of Operation HEATING SEQUENCE OF OPERATION ABNORMAL HEATING MODE NORMAL HEATING MODE POWER ON GAS VALVE OFF. COMBUSTION AIR INDUCER OFF. INDOOR BLOWER DELAY OFF. CONTROL SELF−CHECK OKAY? LED SLOW FLASH (RESET CONTROL BY TURNING MAIN POWER OFF.) LED FLASHES CODE 1 −...
  • Page 51 Troubleshooting: Heating Sequence of Operation (Continued) HEATING SEQUENCE CONTINUED NORMAL HEATING MODE ABNORMAL HEATING MODE 15-SECOND COMBUSTION AIR INDUCER PREPURGE INITIATED BY CLOSED PRESSURE SWITCH. LED FLASHES CODE 13 − LOW LINE VOLTAGE. ONCE VOLTAGE IS ABOVE IGNITOR WARM-UP −− 20 SECONDS. IS VOLTAGE ABOVE 70 VOLTS? 75 VOLTS, HEATING SEQUENCE RESTARTS.
  • Page 52 Troubleshooting: Cooling Sequence of Operation COOLING SEQUENCE OF OPERATION NORMAL COOLING MODE ABNORMAL COOLING MODE POWER ON IGNITION CONTROL MAIN POWER ON. GAS VALVE OFF. COMBUSTION AIR INDUCER OFF. INDOOR BLOWER OFF WITH NORMAL DELAY. CONTROL SELF DIAGNOSTIC CHECK. SIGNAL CIRCUIT BOARD FAILURE AT LED. IS CONTROL OPERATING NORMALLY? INTERRUPT MAIN POWER TO RESET CONTROL.

  • Page 53: Repair Parts List

    INTERRUPTION. Repair Parts List The following repair parts are available through Lennox dealers. When ordering parts, include the complete furnace model number listed on the CSA nameplate −− Example: EL195UH045P24B−01. All service must be performed by a licensed professional installer (or equivalent), service agency, or gas supplier.

  • Page 54: Start Up Checklist

    Start−Up & Performance Check List UNIT SET UP Furnace: Model Number_______________ Serial Number_________________ SUPPLY Line Voltage GAS SUPPLY LP Propane Gas Natural Gas Piping Connections Tight Leak Tested Flter Supply Line Pressure W.C.________ RETURN AIR Gas Supply Pressure DUCT SYSTEM SUPPLY AIR DUCT Sealed Insulated (if necessary)
  • Page 55 UNIT OPERATION HEATING MODE COOLING MODE GAS MANIFOLD PRESSURE W.C._____ INDOOR BLOWER AMPS______ COMBUSTION SAMPLE CO CO PPM_______ TEMPERATURE DROP ______ Return Duct Temperature _________ INDOOR BLOWER AMPS______ Supply Duct Temperature _______ Temperature Drop = _________ TEMPERATURE RISE TOTAL EXTERNAL STATIC (dry coil) Supply Duct Temperature ________ Supply External Static _______ Return Duct Temperature...
  • Page 56 Requirements for Commonwealth of Massachusetts Modifications to NFPA−54, Chapter 10 4 − INSPECTION. The state or local gas inspector of the side wall, horizontally vented, gas−fueled equipment Revise NFPA−54 section 10.8.3 to add the following re- shall not approve the installation unless, upon inspec- quirements: tion, the inspector observes carbon monoxide detec- For all side wall, horizontally vented, gas−fueled equipment...

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