Empire Comfort Systems DV-35-2SG INSTALLATION INSTRUTIONS continued, Cutting Vent Tubes

INSTALLATION INSTRUTIONS (continued)

On solid wall, when using wall studs for attachment of wall mounting bracket, fasten wall mounting bracket to wall studs with (2) #10 x 1 1/2" (38mm) screws provided and fasten (2) additional #10 x 1 1/2" (38mm) screws provided through the wall mounting bracket and into the solid wall.

On sheet rock, when using wall studs for attachment of wall mounting bracket, fasten wall mounting bracket to wall studs with (2) #10 x 1 1/2" (38mm) screws provided and by using wall opening for access, fasten 2 additional #10 x 1 1/2" (38mm) screws and (2) Tinnerman nuts provided through the wall mounting bracket and into the sheet rock.

Attaching Furnace To Wall Mounting Bracket

Hang furnace on wall mounting bracket by aligning (2) tabs on wall mounting bracket with (2) slots located on inner casing top.

The inner casing bottom is to be fastened to the wall. On solid wall, fasten inner casing bottom with (2) #10 x 1 1/2" (38mm) screws provided. On sheet rock wall, fasten inner casing bottom with (2) toggle bolts 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 1/2" (64mm) 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

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 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.

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 furnace cement from flue outlet collar on combustion chamber and collar of vent cap. Remove old furnace cement from both ends of 4" (102mm) diameter flue outlet tube.

2.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.

3.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.

4.Apply furnace cement 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.

5.Reassembly and resealing vent-air intake system is completed.

Installing aVent NearaWindow Ledge, OtherType of Projection or on Siding (vinyl, aluminum, etc.)

Direct vent furnaces are designed to be installed on a uniform outside wall. When the wind comes from any angle (up, down or from either side), it must hit the vent cap equally over both the air inlet and the flue outlet portions of the vent. Any wall projection, such as a door or window casing, which disturbs the wind on one side of the air inlet section will result in back pressure on the flue section smothering the flame and eventual pilot outage.

When the vent cap is to be installed on siding or it appears that a projection within 6" (152mm) of any side of the air inlet section could shield the air inlet section, the entire vent should be supported away from the wall at least the distance of the projection. 2" x 4" (51mm x 102mm) framing whose outside dimensions match the overall dimensions of the mounting plate is recommended. The 2" x 4" (51mm x 102mm) framing protects siding from possible warpage or discoloration. All joints can then be sealed and painted. The wall depth plus the additional depth of the 2" x 4" (51mm x 102mm) framing should not exceed a total depth of 13" (330mm) for DV-25 and DV-35. (See Figure 5)

Vinyl siding vent kit, DV-822, is available from Empire Comfort Systems, Inc. The depth is 3" (76mm), which enables the vent cap to be extended away from siding or projections. The wall depth plus the additional 3" (76mm) depth of the vinyl siding vent cap extension should not exceed a total depth of 13" (330mm) for DV- 25 and DV-35. (See Figure 5a)

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