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© 2014 Lennox Industries Inc.
Corp. 1246-L10
EL296UHE
Service Literature
Revised 03/2014
EL296UHE SERIES UNITS
EL296UHE series units are high efficiency condensing gas
furnaces used for upflow or horizontal applications only,
manufactured with Lennox Duralokt heat exchangers
formed of aluminized steel. EL296UHE units are available
in heating capacities of 44,000 to 132,000 Btuh and cooling
applications up to 5 tons. Refer to Product Specifications
Manual for proper sizing.
Units are factory equipped for use with natural gas. Kits are
available for conversion to LPG operation. EL296UHE
model units are equipped with the SureLight
®
two-stage
integrated control. EL296UHE unit meets the California Ni
trogen Oxides (NO
x
) Standards and California Seasonal
Efficiency requirements. All units use a redundant gas
valve to assure safety shut-off as required by C.S.A.
All specifications in this manual are subject to change. Pro
cedures outlined in this manual are presented as a recom
mendation only and do not supersede or replace local or
state codes. In the absence of local or state codes, the
guidelines and procedures outlined in this manual (except
where noted) are recommendations only and do not consti
tute code.
TABLE OF CONTENTS
Specifications Page 2.............................
I Unit Components Page 7........................
II Installation Page 22.............................
III Start Up Page 44..............................
IV Heating System Service Checks Page 45.........
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........................
WARNING
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 HVAC in
staller (or equivalent), service agency or the gas sup
plier.
WARNING
Sharp edges.
Be careful when servicing unit to avoid sharp edges
which may result in personal injury.
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