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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.
EL296DFE series units are high eciency condensing
gas furnaces used for downow applications only, manu-
factured with Lennox Duralok heat exchangers formed of
aluminized steel. EL296DFE units are available in heating
capacities of 44,000 to 110,000 Btuh and cooling applica-
tions up to 5 tons. Refer to Product Specications Manual
for proper sizing.
Units are factory equipped for use with natural gas. Kits
are available for conversion to LPG operation. EL296DFE
model units are equipped with the SureLight
®
two-stage
constant torque integrated control. EL296DFE unit meets
the California Nitrogen Oxides (NOx) Standards and Cal-
ifornia Seasonal Eciency requirements. All units use a
redundant gas valve to assure safety shut-o as required
by C.S.A.
All specications in this manual are subject to change.
Procedures outlined in this manual are presented as a
recommendation only and do not supersede or replace lo-
cal or state codes. In the absence of local or state codes,
the guidelines and procedures outlined in this manual (ex-
cept where noted) are recommendations only and do not
constitute code.
TABLE OF CONTENTS
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Blower Performance Data . . . . . . . . . . . . . . . . . . Page 4
I Unit Components . . . . . . . . . . . . . . . . . . . . . . . . Page 6
II Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22
III Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 45
IV Heating System Service Checks . . . . . . . . . Page 46
V Typical Operating Characteristics . . . . . . . . . Page 49
VI Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . Page 50
VII Wiring and Sequence of Operation . . . . . . Page 53
VIII Field Wiring and Jumper Settings . . . . . . . Page 56
X Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . Page 60
EL296DFE
Corp 1247-L10
Revised 06/2021
EL296DFE SERIES UNITS
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