12430-11-1008
Page 10
Locating Electric Supply
A 7/8” (22mm) diameter knockout is provided at the bottom of
the left and right side panels. A three-prong (grounding) plug as-
sembly is located within the control compartment (bottom) of the
furnace. Please remove 7/8” (22mm) knockout from appropriate
side panel when routing plug assembly to an electrical outlet. Unit
can be hard wired when recessed. Remove the 3 prong plug as-
sembly and terminate inside the unit junction box.
Figure 7
Installation of Three-prong (Grounding) Plug Assembly
1. Disconnect nylon cap on 3’ (92cm) plug assembly from nylon
plug on wiring harness. Remove 3’ (92cm) plug assembly
from control compartment (bottom) of the furnace.
2. Remove 7/8” (22mm) knockout from appropriate side
panel.
3. Insert nylon cap on 3’ (92cm) plug assembly into the 7/8”
(22mm) hole in the side panel.
4. Connect nylon cap on 3’ (92cm) plug assembly to nylon plug
on the wiring harness.
5. Place 7/8” (22mm) strain relief bushing around the cord of
the 3’ (92cm) plug assembly. Insert 7/8” (22mm) strain relief
bushing into the 7/8” (22mm) hole in the side panel.
Attention!
The 7/8” (22mm) strain relief bushing is located within
the same envelope as the Installation Instructions and Owner’s
Manual.
Attaching Furnace to Wall
Refer to Figure 5 for the location of the 7 1/2” (191mm) diam-
eter wall opening for the furnace. After the wall opening has been
located and cut, position flue outlet on furnace in center of wall
opening. When attaching furnace to the wall, remove that por-
tion of baseboard and molding on the wall which is behind the
furnace. Attach furnace to wall, at the outer casing top, with (2)
toggle bolts provided and to floor, at the out casing bottom, with
(2) #10 x 1 1/2” (38mm) screws provided.
Cutting Vent Tubes
This is the most important part of the installation. With the fur-
nace installed on the wall, the 6” (152mm) diameter inlet tube and
the 4” (102mm) diameter flue outlet tube are to be marked and cut
using the following procedure.
1. Attach 6” (152mm) diameter air inlet tube onto the collar
of air drop assembly. Be sure 6” (152mm) diameter air inlet
tube is placed as far as possible onto the collar of the air
drop assembly. Mark the 6” (152mm) diameter air inlet tube
1/2” (13mm) beyond the outside wall. Remove 6” (152mm)
diameter air inlet tube from collar of air drop assembly.
2. Attach 4” (102mm) diameter flue outlet tube onto flue outlet
collar on combustion chamber. Be sure 4” (102mm) diameter
flue outlet tube is placed as far as possible onto the collar of
flue outlet. Mark the 4” (102mm) diameter flue outlet tube 2
1/4” (57mm beyond the outside wall. Remove 4” (102mm)
diameter flue outlet tube from collar of flue outlet on combus-
tion chamber.
3. Mark or wrap tape completely around the tubes at the marked
points to help in making a true cut. Do not crimp or enlarge
tubes.
Installing Vent Assembly (See Figure 8)
1. Place provided caulking beneath the edge of the outside
mounting plate. Use additional caulking to correct uneven
wall surface, such as clapboard.
2. Attach 6” (152mm) diameter air inlet tube onto the collar of
air drop assembly. Attach caulked, outside mounting plate into
the 6” (152mm) diameter air inlet tube. Position the outside
mounting plate so that 6” (152mm) diameter air inlet tube
has a slight downward slope to the outside.
The downward
slope is necessary to prevent the entry of rainwater.
Attach
outside mounting plate to exterior wall with (4) #10 x 1 1/2”
(38mm) screws provided.
3. Apply furnace cement or RTV silicone sealant to 4” (102mm)
diameter flue outlet collar on combustion chamber and to 4”
(102mm) diameter collar on vent cap. Attach 4” (102mm)
diameter flue outlet tube onto flue outlet collar on combustion
chamber. Attach vent cap into the 4” (102mm) diameter flue
outlet tube. Attach vent cap to outside mounting plate with
(3) #10 x 1/2” (13mm) screws provided.
4. Installation is complete.
Figure 8
