INSTALLATION INSTRUCTIONS (continued)
4.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.
5.Reassembly and resealing
Installing a Vent Near a Window Ledge,
Other Type 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" 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" framing whose outside dimensions match the overall dimensions of the mounting plate is recommended. The 2" x 4" framing protects sid- ing 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" framing should not exceed a total depth of 13" for
Vinyl siding vent kit,
Warning: When vinyl siding vent kit,
Figure 9 | Figure 10 |
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