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UNIT INFORMATIONUNIT INFORMATION
Service Literature
©2016 Lennox Industries, Inc.
WARNING
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.
CAUTION
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.
EL195UHE series units are high-eciency gas furnaces
available in heating input capacities of 40,000 to 100,000
Btuh and cooling applications from 2 through 5 tons.
Refer to Engineering Handbook for proper sizing.
Units are factory equipped for use with natural gas. All
EL195UHNE units are equipped with a hot surface igni-
tion system. The gas valve is redundant to assure safety
shut-o as required by C.S.A.
The heat exchanger, burners and manifold assembly can
be removed for inspection and service. The maintenance
section gives a detailed description on how this is done.
All specications are subject to change. Procedures out-
lined in this manual are presented as a recommendation
only and do not supersede or replace local or state codes.
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at disconnect
switch(es). Unit may have multiple power
supplies.
Table of Contents
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . 4
I-Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
II Placement and Installation . . . . . . . . . . . . . . . . . . . . 17
III-Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
IV-Heating System Service Checks . . . . . . . . . . . . . . 39
V-Typical Operating Characteristics . . . . . . . . . . . . . . 45
VI-Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
VII-Sequence of Operation and Flow Charts . . . . . . 49
EL195UHNE
Corp 1801-L1
Revised 09/2021
EL195UHNE SERIES UNITS
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