Lennox B050A3B, Installation/Servicing Instructions And Users Information Manual

Page: 7 / 36

506307-01 Page 7 of 36 Issue 1207
LOCATION / PLACEMENT
Site Selection: This furnace may be located in an attic, closet, basement, crawl space, alcove or suspended from the ceiling
of a utility room or basement. Select a location that will meet all requirements for safety, clearances, ventilation
and combustion air, ductwork design, gas piping, electrical wiring and venting.
Clearances: The following minimum clearances, or greater, must be provided between the furnace and adjacent
construction.
The furnace should also be located as near to the center
of the air distribution system as possible, and should be
installed level.
This furnace may be installed on mon-combustible
flooring or on wood flooring, however, it must not be installed
directly on carpeting, tile or any other combustible material.
Line contact is only permissible bewteen lines formed
by the intersection of the furnace top, the front and back
sides, and building joists, studs or framing (See Figure 1).
If the furnace is to be installed in a crawl space, consult
local codes. (Use of a concrete pad 1” to 2” thick is
recommended.)
If the furnace is to be suspended from the ceiling, it will
be necessary to use steel pipe straps around each end of
the furnace. These straps should be attached to the furnace
with sheet metal screws and to the rafters with bolts. The
furnace may also be suspended by using an angle iron frame
bolted to the rafters. (See Table on page 3 for size and
weight of furnace.) Care must be taken to allow for service
access.
If a furnace is to be installed in a residential garage, it
must be installed so the burners and the ignition source are
located not less than 18” above the floor and the furnace
must be located or protected to avoid physical damage by
vehicles.
Failure to comply with all of the clearances will create a
fire hazard.
WARNING
Figure 1
Furnace must not lean back. It must be level or tilt
up to 2° to the front. (See Figure 1.)
A clearance of at lease 30” should be provided at the
front of the unit for servicing. For attic installations, the
passageway and servicing area adjacent to the furnace
should be floored.
HORIZONTAL LINE CONTACT
WARNING
Do not place combustible material on the furnace jacket.
Failure to comply with this warning will create a fire hazard.
This furnace is not watertight and is not designed for
outdoor installation. This furnace shall be installed in such
a manner as to protect the electrical components from
water. Outdoor installation would lead to a hazrdous
electrical condition and to premature furnace failure.
WARNING