Locating Electric Supply

INSTALLATION INSTRUCTIONS (continued)

Figure 8

A 7/8" 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" knockout from appropriate side panel when routing plug assembly to an electrical outlet.

Installation of Three-prong (Grounding) Plug Assembly

1.Disconnect nylon cap on 3' plug assembly from nylon plug on wiring harness. Remove 3' plug assembly from control compart- ment (bottom) of the furnace.

2.Remove 7/8" knockout from appropriate side panel.

3.Insert nylon cap on 3' plug assembly into the 7/8" hole in the side panel.

4.Connect nylon cap on 3' plug assembly to nylon plug on the wiring harness.

5.Place 7/8" strain relief bushing around the cord of the 3' plug assembly. Insert 7/8" strain relief bushing into the 7/8" hole in the side panel.

Attention! The 7/8" 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" diameter wall open- ing 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" screws provided.

Attention! The screw holes on the outer casing bottom are off-set above the ﬂoor approximately 3/8". Do not over-tighten screws and distort the off-set on the outer casing bottom. Distortion of the outer casing bottom will not allow the lower front panel to be attached to the furnace.

Cutting Vent Tubes

This is the most important part of the installation. With the furnace installed on wall the 6" diameter air inlet tube and the 4" diam- eter ﬂue outlet tube are to be marked and cut using the following procedure.

1.Attach 6" diameter air inlet tube onto the collar of air drop assembly. Be sure 6" diameter air inlet tube is placed as far as possible onto the collar of the air drop assembly. Mark the 6" diameter air inlet tube 1/2" beyond the outside wall. Remove 6" diameter air inlet tube from collar of air drop assembly.

2.Attach 4" diameter ﬂue outlet tube onto ﬂue outlet collar on combustion chamber. Be sure 4" diameter ﬂue outlet tube is placed as far as possible onto the collar of ﬂue outlet. Mark the 4" diameter ﬂue outlet tube 2 1/4" beyond the outside wall. Remove 4" 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

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" diameter air inlet tube onto the collar of air drop assembly. Attach caulked, outside mounting plate into the 6" diameter air inlet tube. Position the outside mounting plate so that 6" 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" screws provided.

3.Apply furnace cement to 4" diameter ﬂue outlet collar on combustion chamber and to 4" diameter collar on vent cap. Attach 4" diameter ﬂue outlet tube onto ﬂue outlet collar on combustion chamber. Attach vent cap into the 4" diameter ﬂue outlet tube. Attach vent cap to outside mounting plate with (3) #10 x 1/2" screws provided.

4.Installation is completed.

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 mount- ing 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 cement from ﬂue outlet collar on com- bustion chamber and collar of vent cap. Remove old furnace cement from both ends of 4" diameter ﬂue outlet tube.

3.Attach 6" diameter air inlet tube onto the collar of air drop assembly. Attach caulked, outside mounting plate into the 6" diameter air inlet tube. Position the outside mounting plate so that 6" 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" screws provided.

Page 10

12431-9-0408