Page 12
The EL296UHV furnace can be installed in horizontal ap-
plications with either right- or left-hand air discharge. Re-
fer to Figure 17 for clearances in horizontal applications.
Installation Clearances
dnE thgiRdnE tfeL
Right-Hand Discharge
Left-Hand Discharge
Top
Bottom (Floor)**
Bottom (Floor)**
dnE thgiRdnE tfeL
Air
Flow
Air
Flow
AIR FLOW
AIR FLOW
Top 0
Front* 0
Back 0
Ends 0
Vent 0
Floor 0‡
*Front clearance in alcove installation must be 24 in. (610 mm).
Maintain a minimum of 24 in. (610 mm) for front service access.
**An 8” service clearance must be maintained below the unit to
provide for servicing of the condensate trap.
‡For installations on a combustible floor, do not install the furnace
directly on  carpeting,  tile or other combustible  materials  other
than wood flooring.
Figure 17 
Suspended Installation of Horizontal Unit
This furnace may be installed in either an attic or a crawl-
space. Either suspend the furnace from roof rafters or 
oor joists, as  shown in Figure 18, or install the furnace 
on a platform, as shown in Figure 19. A horizontal sus-
pension kit (51W10) may be ordered from Lennox or use 
equivalent.
NOTE - Heavy-gauge sheet metal straps may be used to 
suspend the unit from roof rafters or ceiling joists. When 
straps are used  to suspend the  unit in this way, support 
must be provided for both the ends. The straps must not 
interfere  with  the  plenum  or  exhaust  piping  installation. 
Cooling coils and supply and return air plenums must 
be supported separately.
HORIZONTAL SUSPENSION KIT
Bracket
(typical)
Metal Strap
(typical)
Air
Flow
Internal Brace
(provided with kit)
Figure 18 
NOTE - When the furnace is installed on a platform or with 
the horizontal suspension kit in a crawlspace, it must be 
elevated  enough  to  avoid  water  damage,  accommodate 
drain trap and to allow the evaporator coil to drain.
Platform Installation of Horizontal Unit
1 -   Select location for unit keeping in mind service and 
other necessary clearances. See Figure 17.
2 -   Construct a raised wooden frame and cover frame 
with a plywood sheet. If unit is installed above 
nished  space,  install  an  an  auxiliary  drain  pan 
under unit. Set unit in drain pan as shown in Figure 
19. Leave 8 inches for service clearance below unit 
for condensate trap.
3 -   Provide a service platform in front of unit. When 
installing the unit in a crawl space, a proper support 
platform may be created using cement blocks.
4 -   Route auxiliary drain line so that water draining from 
this outlet will be easily noticed by the homeowner.
5 -   If necessary, run the condensate line into a 
condensate pump to meet drain line slope 
requirements. The pump must be rated for use 
with condensing furnaces. Protect the condensate 
discharge line from the pump to the outside to avoid 
freezing.
6 -   Continue with exhaust, condensate and intake 
piping installation according to instructions.