Empire Comfort Systems DVP42FP3(0,1,2,3)(N,P)-4 Installation Instructions And Owner's Manual page 25

DVVK-4FV DIRECT VENT TERMINATION KIT (cont.)
17. To attach the vent connections at the fireplace, be sure the 7"
diameter adapter collar has been installed per step 3. Apply a
bead of silicone sealant to the 4" diameter flex connector, then
slide the flex pipe adapter collar into the fireplace flue collar
and secure by installing a minimum of two (2) screws through
the flue collar and into the adapter. See Figure 38.
18. Apply sealant to the 7" diameter adapter collar, slide outer
flex vent over the collar, then secure with a 7" diameter band
clamp. See Figure 38.
19. Once the lower connections are made and the flex pipe is
secured with support bands as required (3 feet minimum be-
tween supports) then the roof flashing can be installed. See
Figure 39.
20. Install the roof flashing, and seal using common constructions
practices.
28649-2-0811
Figure 38
21. An additional storm collar band is provided in kit that may be
used as an attic insulation shield. The collar can be installed
around the flex pipe (or hard pipe) just above the firestop
thimble. This collar will act as a shield to prevent blown insu-
lation from entering the thimble.
22. To complete the vent installation, install the vent termination
cap to the top of the hard vent pipe assembly. Mate up the
flue and outer telescopes with the hard pipe assembly, then
secure by installing a minimum of two (2) sheet metal screws
into the overlapped flanges of the cap and pipe.
23. Figure 40 shows a completed installation with components
identified and other installation information such as heights
and clearance to combustibles.
Vent Cap
7"(178mm) Dia.
Hard Pipe
Must Extend
Through Roof
Flashing
Roof
Flashing
Roof
Exterior
Storm
Collar
Roof
Support
Assembly
7"(178mm) Dia.
Flex
1" (25mm)
Minimum
Clearance to
Combustibles
Figure 39
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