Installation
To avoid electrical shock, turn off all electrical circuits that pass
through the wall where you are going to install the furnace.
Before the furnace is installed, an opening must be cut through
the wall for the vent.
Find the Studs
Find the studs where the furnace is to be placed. Use a stud
locator or small finishing nails. Drive a nail on the inside of the
first stud. Drive a second nail on the outside of this stud.
The inside edge of the next stud should be about 14-1/2 inches
from the one found. Drive a finishing nail on the inside edge of
this stud, then another nail on the outside edge.
Using a level, draw vertical lines that will represent the two stud
center lines.
Cut Vent Opening
Line up the center of the stud lines with the center lines you have
drawn on the wall. Draw the 2-1/2 inch diameter circle on the
wall. Then mark the location of the gas supply line.
Using a window, door or wall corner for reference, measure to
find where the vent will be on the outside wall. Check to be sure
of the proper clearances (Figures 1 and 2). If necessary, relocate
the furnace for proper clearances.
Drill a 1/4 inch hole in the wall at the vent opening center mark all
the way through to the outside. Cut the 2-1/2 inch diameter hole
through the inside wall. Using the 1/4 inch hole as center, cut a
matching hole in the outside wall. It may be better to work from
the outside when breaking through brick, stone or tile.
Make sure the wall openings are aligned so vent tubes will fit
properly.
In new construction, frame in 2-1/2 inch x 2-1/2 inch opening
centered between the studs spaced 16 inches on centre and the
center point located as noted in Figure 3.
Gas and Electrical Supply Openings
Holes must be drilled for the gas line. Drill a 1-1/2 inch hole in the
wall for the gas line. You will have to determine whether the gas
line will enter the home through the outside wall or the floor plate.
These instructions can only guide you to where the gas line will
enter the furnace.
The gas line can be run at this time or after the furnace is
mounted. See "'Gas Supply and Piping" section.
Rear Panel Mounting (Figure 4-6)
Set the furnace body against the wall and mark the top location
of the two top corners of the rear panel using masking or
painter’s tape.
Move the furnace away from the wall and remove the rear panel.
Place the rear panel against the wall and mark the vent and gas
openings. For exhaust tube only (standard) mark only the left
hole. If using the optional air inlet kit, mark both holes.
FIGURE 3
FIGURE 4
