S e r v i c e L i t e r a t u r e
COMMUNICATING - ENABLED EL296DFV SERIES UNITS
EL296DFV(X) series units are 90% efficiency gas furnac-
es used for upflow or horizontal applications only, man-
ufactured with Lennox Duralok heat exchangers formed
of aluminized steel. EL296DFV(X) units are available in
heating capacities of 44,000 to 110,000 Btuh and cooling
applications up to 5 tons. Refer to Engineering Handbook
for proper sizing.
Units are factory equipped for use with natural gas. Kits
are available for conversion to LPG operation. EL296D-
FV(X) model units are equipped with a communicating
enabled SureLight
two-stage variable speed integrated
®
control.
EL296DFV(X) unit meets the California Nitrogen Oxides
(NOx) Standards and California Seasonal Efficiency re-
quirements. 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.
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
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
II Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 39
III Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 63
VI Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . Page 67
VIII Field Wiring and Jumper Settings
IX Program Unit Capacity Size Mode
UNIT INFORMATION
UNIT INFORMATION
Corp 1126-L5
Revised 03/2022
. . . . . . . Page 73
. . . . . . . Page 87
Page 1
WARNING
Improper
installation,
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.
EL296DFV(X)
adjustment,
alteration,
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