12430-3-0903
Page 9
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 assembly
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 assembly and
terminate inside the unit junction box.
R ECESS ED MOUNTI NG
LOCATION
8"
4"
4"
2 1/8"
GAS LINE
HOLE 1 1/4"
ELECTR ICAL WIR ING HOLE
GAS LINE/ELECTRI CAL OP ENINGS FOR
R ECESS ED AND SUR FACE MOUNT
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' 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) diameter
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 portion
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 outer 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 furnace
installed on wall the 6" (152mm) diameter air 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 combustion
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 completed.
Figure 8
Reassembly And Resealing Vent-Air Intake System
When vent-air intake system is removed for servicing the furnace,
the following steps will assure proper reassembly and resealing of
the vent-air intake assembly.
1. Remove old caulking beneath the edge of the outside mounting
plate. Apply new caulking beneath the edge of the outside
mounting plate. Use additional caulking to correct uneven wall
surface, such as clapboard.
2. Remove old furnace sealant from flue outlet collar on combustion
chamber and collar of vent cap. Remove old furnace sealant
from both ends of 4" (102mm) diameter flue outlet tube.
