Filters - Lennox ELITE Series Installation Instructions Manual

Horizontal Application
Unit Installed on Platform
Line contact is permissible but not preferred
See the unit nameplate for
clearances.
GAS
ENTRY
SERVICE PLATFORM
FIGURE 13
WARNING
Improper installation of the furnace can result in per­
sonal injury or death. Combustion and flue products
must never be allowed to enter the return air system
or the living space. Use screws and joint tape to seal
the return air system to the furnace.
In platform installations with bottom return air, the
furnace should be sealed airtight to the return air ple­
num. A door must never be used as a portion of the
return air duct system. The base must provide a
stable support and an airtight seal to the furnace. Al­
low absolutely no sagging, cracks, gaps, etc.
The return and supply air duct systems must never
be connected to or from other heating devices such
as a fireplace or stove, etc. Fire, explosion, carbon
monoxide poisoning, personal injury and/or proper­
ty damage could result.
The blower access panel must be securely in place
when the blower and burners are operating. Gas
fumes, which could contain carbon monoxide, can
be drawn into living space resulting in personal inju­
ry or death.
VENT

Filters

PIPE
This unit is not equipped with a filter or rack. A field-pro­
vided high-velocity filter is required for the unit to operate
properly. Table 1 lists recommended filter sizes.
A filter must be in place any time the unit is operating.
If a high­efficiency filter is being installed as part of
this system to ensure better indoor air quality, the fil­
ter must be properly sized. High­efficiency filters
have a higher static pressure drop than standard­ef­
ficiency glass/foam filters. If the pressure drop is too
great, system capacity and performance may be re­
duced. The pressure drop may also cause the limit to
trip more frequently during the winter and the indoor
coil to freeze in the summer, resulting in an increase
in the number of service calls.
Before using any filter with this system, check the
specifications provided by the filter manufacturer
against the data given in the appropriate Lennox
Product Specifications bulletin. Additional informa­
tion is provided in Service and Application Note
ACC­00­2 (August 2000).
Furnace
Cabinet Width
A - 14-1/2"
B - 17-1/2"
C - 21"
D - 24-1/2"
Page 11
WARNING
IMPORTANT
TABLE 1
Filter Size
Side Return Bottom Return
16 X 25 X 1 (1) 14 X 25 X 1 (1)
16 X 25 X 1 (1) 16 X 25 X 1 (1)
16 X 25 X 1 (1) 20 X 25 X 1 (1)
16 X 25 X 1 (2) 24 X 25 X 1 (1)