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Lennox EL195UHE Installation Instructions Manual

Elite series gas furnace upflow/horizontal air discharge
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See also: Unit Information , User's Information Manual
Enlarged version
© 2018 Lennox Industries Inc.
Dallas, Texas USA
Contents
Unit Dimensions - inches (mm) ......................................2
EL195UHE Gas Furnace ................................................3
Shipping and Packing List ..............................................3
Safety Information ..........................................................3
Use of Furnace as Construction Heater .........................4
General ...........................................................................5
Combustion, Dilution & Ventilation Air ............................5
Setting Equipment ..........................................................8
Filters ............................................................................13
Duct System .................................................................13
Pipe Fittings Specifications...........................................14
Joint Cementing Procedure ..........................................16
INSTALLATION
INSTRUCTIONS
EL195UHE
ELITE
SERIES GAS FURNACE
®
UPFLOW/HORIZONTAL AIR DISCHARGE
507274-05
02/2018
Supersedes 06/2017
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 man-
uals, be alert to the potential for personal injury or death.
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
Venting Practices ..........................................................16
Vent Piping Guidlines ...................................................17
Gas Piping ....................................................................36
Electrical .......................................................................39
Unit Start-Up .................................................................42
Gas Pressure Adjustment .............................................46
Proper Cumbustion.......................................................46
High Altitude Information ..............................................46
Testing for Venting and Combustion Air........................46
Other Unit Adjustments.................................................47
Service..........................................................................48
Repair Parts List ...........................................................49
Start-Up & Performance Check List .............................51
Page 1
CAUTION
WARNING

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Summary of Contents for Lennox EL195UHE

  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS EL195UHE © 2018 Lennox Industries Inc. Dallas, Texas USA ELITE SERIES GAS FURNACE ® UPFLOW/HORIZONTAL AIR DISCHARGE 507274-05 02/2018 Supersedes 06/2017 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 - Inches (Mm)

    Unit Dimensions - inches (mm) NOTE - 60C and 60D size units that require air volumes over 1800 cfm must have one of the following: 1. Single side return air and Optional Return Air Base with transition that must accommodate required EXHAUST AIR 3-1/4 20 x 25 x 1 inch (508 x 635 x 25 mm) air filter to...

  • Page 3: El195Uhe Gas Furnace

    EL195UHE Gas Furnace Shipping and Packing List Package 1 of 1 contains The EL195UHE Category IV gas furnace is shipped ready for installation in the upflow or horizontal position. The furnace is 1 - Assembled EL195UHE unit shipped with the bottom panel in place. The bottom panel must...

  • Page 4: Use Of Furnace As Construction Heater

    Use of Furnace as Construction Heater This EL195UHE furnace must be installed so that its elec- NOTE - Gas furnaces manufactured on or after May 1st trical components are protected from water.

  • Page 5: General

    The furnace should Combustion, Dilution & Ventilation Air also be located close to the vent termination point. If the EL195UHE is installed as a Non-Direct Vent Fur- • When the furnace is installed in non-direct vent ap- nace, follow the guidelines in this section.
  • Page 6 A portion of this information has been reprinted with per- This is especially important when the furnace is mounted mission from the National Fuel Gas Code (ANSI Z223.1/ on a platform in a confined space such as a closet or small NFPA 54).
  • Page 7 EQUIPMENT IN CONFINED SPACE - ALL AIR FROM OUTSIDE EQUIPMENT IN CONFINED SPACE (Inlet Air from Crawl Space and Outlet Air to Outside) (Inlet Air from Ventilated Crawlspace and Outlet Air to Outside) VENTILATION LOUVERS Roof Terminated (Each end of attic) ROOF TERMINATED Exhaust Pipe EXHAUST PIPE...
  • Page 8 INLET AIR LOCATION) Upflow Applications The EL195UHE gas furnace can be installed as shipped NOTE-Each air duct opening shall have a free area of at least one in the upflow position. Refer to figure 12 for clearances. square inch per 2,000 Btu (645mm per .59kW) per hour of the total...

  • Page 9: Setting Equipment

    SETTING EQUIPMENT Unit must be level side-to-side. Unit may be positioned from level to 1/2” toward the front to aid in draining. UPFLOW APPLICATION UNIT FRONT UNIT FRONT AIR FLOW 1/2” max. SIDE VIEW SIDE VIEW FRONT VIEW HORIZONTAL APPLICATION UNIT FRONT 1/2”...
  • Page 10 Refer to Engineering Handbook for additional information. no sagging, cracks, gaps, etc. For no reason should EL195UHE applications which include side return air return and supply air duct systems ever be connected and a condensate trap installed on the same side of...
  • Page 11 Optional Return Air Base CONDENSATE (Upflow Applications Only) TRAP FURNACE FRONT 23 (584) 3−1/4 IF BASE Overall (83) IS USED (Maximum) Minimum WITHOUT 11 (279) IAQ CABINET, Maximum 22−7/16 INDOOR AIR A SINGLE Unit side return air 14 (356) (570) QUALITY RETURN AIR Opening...
  • Page 12 19. A horizontal suspension 4 - Route auxiliary drain line so that water draining from kit (51W10) may be ordered from Lennox or use equiva- this outlet will be easily noticed by the homeowner.

  • Page 13: Filters

    This the data given in the appropriate Lennox Product reverse flow of the flue gas may result in incomplete com- Specifications bulletin. Additional information is provided bustion and the formation of carbon monoxide gas.

  • Page 14: Pipe Fittings Specifications

    D1785 IMPORTANT Schedule 40 PVC (Cellular Core Pipe) F891 Schedule 40 PVC (Fittings) D2466 EL195UHE exhaust and intake connections are made Schedule 40 CPVC (Pipe) F441 of PVC. Use PVC primer and solvent cement when Schedule 40 CPVC (Fittings) F438 using PVC vent pipe.
  • Page 15 TABLE 3 OUTDOOR TERMINATION USAGE* STANDARD CONCENTRIC Wall Ring Wall Kit 1-1.2 inch 2 inch 3 inch Flush Mount Kit Input Vent Pipe 2 inch 3 inch 2 inch Field 71M80 69M29 Size Dia. in. Fabricat- 60L46 (US) 51W11 22G44 44J40 (US) (US)

  • Page 16: Joint Cementing Procedure

    Joint Cementing Procedure Venting Practices All cementing of joints should be done according to the specifications outlined in ASTM D 2855. Piping Suspension Guidelines DANGER SCHEDULE 40 DANGER OF EXPLOSION! PVC - 5' all other pipe* - 3' Fumes from PVC glue may ignite during system check. Allow fumes to dissipate for at least 5 minutes before placing unit into operation..

  • Page 17: Vent Piping Guidlines

    The EL195UHE can be installed as either a Non-Direct REPLACING FURNACE THAT WAS PART OF A Vent or a Direct Vent gas central furnace. COMMON VENT SYSTEM NOTE - In Non-Direct Vent installations, combustion air CHIMNEY is taken from indoors and flue gases are discharged out- OR GAS doors.
  • Page 18 Use the following steps to correctly size vent pipe diam- IMPORTANT eter. Do not use screens or perforated metal in exhaust or Pipe Size Process intake terminations. Doing so will cause freeze-ups and may block the terminations. What is the furnace capacity? 030, 045, 070, 090, 110 or 135?
  • Page 19 TABLE 5 Maximum Allowable Vent Length in Feet NOTE - 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. NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calculation.
  • Page 20 TABLE 5 Continued Maximum Allowable Vent Length in Feet NOTE - 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. NOTE - dditional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calculation.
  • Page 21 TABLE 6 Maximum Allowable Exhaust Vent Lengths With Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl Space For Intake Air in Feet NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calculation.
  • Page 22 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 23 Intake Piping TYPICAL AIR INTAKE PIPE CONNECTIONS The EL195UHE furnace may be installed in either direct UPFLOW NON−DIRECT VENT APPLICATIONS vent or non-direct vent applications. In non-direct vent applications, when intake air will be drawn into the furnace INTAKE from the surrounding space, the indoor air quality must be...
  • Page 24 The EL195UHE is then classified as a direct vent, of exhausted air as well as the maximum volume of Category IV gas furnace.
  • Page 25 TABLE 7 Maximum Allowable Exhaust Vent Pipe Length (in ft.) Without Insulation In Unconditioned Space For Winter Design Temperatures Single - Stage High Efficiency Furnace Vent Unit Input Size Winter Design Pipe Temp °F (°C) Diam 32 to 21 2 in (0 to -6) 2-1/2 in 13 3 in...

  • Page 26: Vent Termination Clearances

    ‡ 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 31...
  • Page 27 ‡ 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 32 Page 27...
  • Page 28 8” and a minimum distance of 6” with a termination elbow. TABLE 8 See figure 41. Exhaust Pipe Termination Size Reduction EL195UHE Model Termination Pipe Size *030, *045, *070 1-1/2” (38mm) *090 2”...

  • Page 29: Front View

    7 - If intake and exhaust piping must be run up a side FIELD-PROVIDED wall to position above snow accumulation or other QUIRED TO ADAPT obstructions, piping must be supported. At least one LARGER VENT PIPE bracket must be used within 6” from the top of the SIZE TO TERMINATION.
  • Page 30 FIELD FABRICATED WALL TERMINATION NOTE − FIELD−PROVIDED REDUCER MAY BE 2” (51mm) 3” (76mm) REQUIRED TO ADAPT LARGER VENT PIPE SIZE Vent Pipe Vent Pipe TO TERMINATION A− Minimum clearance above grade or average 12” (305 mm) 12” (305 mm) snow accumulation B−...
  • Page 31 FIGURE 42 Basement Floor Crawl Space and Extended Horizontal Venting Lennox provides kit 51W18 (USA) kit 15Z70 (Canada) to install 2” or 3” PVC exhaust piping through the floor joists KIT 51W18 and into the the crawl space. See figure 44.
  • Page 32 53. Route the condensate line to an open drain. trap and line. Heating cable kit is available from Lennox Condensate line must maintain a 1/4” downward in various lengths; 6 ft. (1.8m) - kit no. 26K68 and 24 ft.
  • Page 33 CONDENSATE TRAP LOCATIONS Condensate Trap With Optional Overflow Switch (Unit shown in upflow position with remote trap) From Evaporator Coil HorizontalFurnace4” Min. to 5” Max.above FieldProvidedVent condensatedrain connection) Min. 1” Above Condensate Drain Connection 1” Min. 2” Max. FurnaceCondensate *5’ max. DrainConnection PV C PipeOnly Optional...
  • Page 34 Furnace with Evaporator Coil Using a Separate Drain (Unit shown in horizontal left-hand discharge position) Field Provided Vent Evaporator (4” min. to 5” max. above Coil condensate connection) 4”min 5”max 5’ max. PVC Pipe Only Condensate Drain Connection (Trap at coil is optional) Drain Pan Piping from furnace and evaporator coil must slope down a minimum 1/4”...
  • Page 35 TRAP / DRAIN ASSEMBLY USING 1/2” PVC OR 3/4” PVC Optional Condensate Drain Connection Adapter 3/4 inch slip X 3/4 inch mpt (not furnished) 90° Street Elbow 3/4 inch PVC (not furnished) Adapter 3/4 inch slip X 3/4 inch mpt (not furnished) Condensate Drain Connection In Unit 1 (25 mm) Min.

  • Page 36: Gas Piping

    IMPORTANT Gas Piping Gas supply piping should not allow more than 0.5”W.C. Compounds used on threaded joints of gas piping must drop in pressure between gas meter and unit. Supply gas be resistant to the actions of liquified petroleum gases. pipe must not be smaller than unit gas connection.
  • Page 37 Upflow Application Upflow Application Left Side Piping Right Side Piping (Standard) (Alternate) 1/2” NPT 1/2” NPT MANUAL MAIN SHUT-OFF VALVE MANUAL MAIN SHUT-OFF VALVE GROUND GROUND JOINT JOINT UNION UNION DRIP LEG FIELD PROVIDED AND INSTALLED DRIP LEG NOTE - BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET Figure 55 Horizontal Applications Possible Gas Piping Configurations...
  • Page 38 TABLE 9 Gas Pipe Capacity - ft3/hr (m3/hr) Nominal Internal Length of Pipe - feet (m) Iron Pipe Diameter Size Inches inches (3.048) (6.096) (9,144) (12,192) (15.240) (18.288) (21.336) (24.384) (27.432) (30,480) (mm) (mm) .622 (12.7) (17.799) (4.87) (3.34) (2.69) (2.29) (2.03) (1.84)

  • Page 39: Electrical

    C22.1) for Canada. A green ground wire is provided in the field make-up box. NOTE - The EL195UHE furnace contains electronic com- ponents that are polarity sensitive. Make sure that the fur- nace is wired correctly and is properly grounded.
  • Page 40 2 - When the EL195UHE is running in the heating mode, One line voltage “120 HUM” 1/4” spade terminal is pro- the indoor blower will run on the heating speed vided on the furnace integrated control.
  • Page 41 TYPICAL EL195UHE WIRING DIAGRAM Figure 58 Page 41...

  • Page 42: Unit Start-Up

    Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. TABLE 10 The gas valve on the EL195UHE is equipped with a gas control switch (lever). Use only your hand to move switch. 1/4” QUICK CONNECT TERMINALS Never use tools.
  • Page 43 TABLE 11 -02 IGNTION CONTROL RED LED Diagnostic Codes / Status of Furnace Flash Code No power to control or board fault detected Heartbeat Control powered - displayed during all modes of operation if no errors are detected Reverse Line Voltage Polarity Improper Earth Ground Burner failed to light, or lost flame during heat demand Low Flame Signal - check flame sensor...
  • Page 44 TABLE 12 -03 IGNITION CONTROL RED LED Diagnostic Codes / Status of Furnace Flash Code No power to control or board fault detected Heartbeat Normal Operation - Idle, Continuous Fan, Cool Continuous Rapid Flash Call For Heat / Burner Operation Reverse Line Voltage Polarity Improper Earth Ground Burner failed to light, or lost flame during heat demand...
  • Page 45 Priming Condensate Trap 9 - Replace the access panel. 10- Turn on all electrical power to to the unit. The condensate trap should be primed with water prior 11- Set the thermostat to desired setting. to start-up to ensure proper condensate drainage. Either pour 10 fl.

  • Page 46: Gas Pressure Adjustment

    NOTE - To obtain accurate reading, shut off all other gas monoxide reading should not exceed 100 ppm. appliances connected to meter. TABLE 15 Supply Pressure Measurement EL195UHE Unit CO2% Nat CO2% LP When testing supply gas pressure, use the 1/8” N.P.T. -030...
  • Page 47 TABLE 16 Manifold and Supply Line Pressure 0-10,000ft. Manifold Pressure in. wg. Supply Line Pressure EL195 in. w.g. Unit 0 - 4500 ft 4501 - 5500 ft 5501 - 6500 ft 6501 - 7500 ft 7501 - 10,000 ft 0 - 10000 ft. Natural 13.0 Models...

  • Page 48: Other Unit Adjustments

    Other Unit Adjustments After the EL195UHE gas furnace has been started, the Primary Limit. following test should be conducted to ensure proper vent- The primary limit is located on the heating compartment ing and sufficient combustion air has been provided to the vestibule panel.

  • Page 49: Service

    Annual Furnace Maintenance At the beginning of each heating season, and to comply with the Lennox Limited Warranty, your system should be checked as follows: 1 - Check wiring for loose connections, voltage at FIGURE 61 indoor unit and amperage of indoor motor.
  • Page 50 Cleaning the Burner Assembly 10- Inspect the furnace intake and exhaust pipes to make sure they are in place, structurally sound, without If cleaning the burners becomes necessary, follow the holes, blockage or leakage and the exhaust pipe steps below: is sloped toward the furnace.

  • Page 51: Repair Parts List

    Repair Parts List The following repair parts are available through Lennox Blower Parts dealers. When ordering parts, include the complete fur- Blower wheel nace model number listed on the CSA nameplate -- Ex- Motor ample: EL195UH045XE36B-01. All service must be...
  • Page 52 ADDENDUM FOR THE PROVINCE OF SASKATCHEWAN AND MANITOBA See below for venting in the province of Saskatchewan and Manitoba. Lennox approves the following termination for use in Saskatchewan and Manitoba Canada. 12” 2” (51MM) 3” (76MM) Vent Pipe Vent Pipe A −...
  • Page 53 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 shall not approve the installation unless, upon requirements: inspection, the inspector observes carbon monoxide For all side wall, horizontally vented, gas-fueled equip-...

  • Page 54: Start-Up & Performance Check List

    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...

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