© 2024 Lennox Industries Inc.
Dallas, Texas USA
WARNING
This furnace is equipped with an ignition control
factory enabled for use with Lennox A2L refrigerant
systems.
Disabling
functionality on A2L system is prohibited by safety
codes. Refer to furnace installation instructions for
non-A2L and non-Lennox refrigerant system setup.
Contents
General ...........................................................................4
Filters ............................................................................13
Duct System .................................................................13
the
refrigerant
detection
INSTALLATION
INSTRUCTIONS
EL195UHNEK
ELITE
SERIES GAS FURNACE
®
UPFLOW / HORIZONTAL AIR DISCHARGE
508575-01
11/2024
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.
IMPORTANT
DO NOT use the heat exchanger tubes to lift, drag or
pull the furnace to its installation location.
Doing so will damage the tubes causing noise and or
unsafe operation.
Heatexchanger Tubes
Gas Piping ....................................................................36
Electrical .......................................................................39
Ignition Control .............................................................41
Twinning .......................................................................46
Unit Start-Up .................................................................50
Service..........................................................................55
Blower Data ..................................................................59
Page 1
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