Attaching Your Furnace - Williams 2509822A Owner's Manual

INSTALLING YOUR FURNACE

Attaching Your Furnace

Clear the wall recess of all debris, remove any wood or plaster.
Stand the furnace in front of recess, holding the furnace body
at an angle. Insert flue collar into the opening in the header
plate and raise furnace carefully (Figure 9). Swing bottom of
furnace into wall recess with front edges of legs flush with
2x4 floor plate. In the holes provided, nail through the legs
into studs or floor plate (Figure 10).
Do not damage gasket glued to underside of header plate
when placing furnace in wall. Avoid nailing the legs so tightly
that it disturbs the inner furnace casing. Do not try to force
the furnace into a smaller-than-specified recess.
If an existing gas line is preventing the installation of a
Williams Monterey unit, a cut-out may be made using tin
snips on one of the legs to clear this existing gas line. This
cut-out will be on one side of the unit on the rear side of
the leg and only if necessary.
FIGURE 9 – INSERT FURNACE
30,000 BTU/HR. MODELS
FIGURE 10 – NAIL PLACEMENT
BOTTOM OF FURNACE
NAIL FURNACE LEG TO
STUD OR FLOOR PLATE
(SEE DETAIL BELOW)
16
MONTEREY PLUS TOP VENT GAS WALL HEATER
B/W VENT
BOTTOM OF
FURNACE
LEG
NAIL AT
ANGLE
FLOOR PLATE
REAR OUTLET KIT INSTALLATION (OPTIONAL)
If a Rear Outlet Register Accessory is used, the following
procedure must be completed before placing furnace body
into wall recess. (Figure 11). Attach speed nuts to outer shield
and remove knockout plates from both the outer and inner
shields as follows:
1. Punch in the lower corners with a screwdriver blade.
2. Break the knockout side and bottom connecting tabs
by holding a screwdriver blade sideways against the
tab and striking the head of the screwdriver lightly with
a hammer.
3. Swing the plate outward; bend it back and forth to
break the top tabs. Use caution when handling sharp
metal edges.
CAUTION: Do not install rear outlet kit where grille may
be blocked by a door, curtains, or any other obstruction.
WARNING: Never shear or cut the furnace legs.
FIGURE 11 – REMOVE KNOCKOUT PLATES
INNER SHIELD
10 - 24 SPEED NUT
KNOCKOUT PLATE
ON OUTER SHIELD
HOLD SCREWDRIVER
SIDEWAYS AGAINST
TABS AND STRIKE
LIGHTLY WITH
HAMMER