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25613-0-0309 Page 23
17. To attach the vent connections at the replace, be sure the 7”
diameter adapter collar has been installed per step 3. Apply
a bead of silicone sealant to the 4” diameter ex connector,
then slide the ex pipe adapter collar into the replace ue
collar and secure by installing a minimum of two (2) screws
through the ue collar and into the adapter. See Figure 34.
18. Apply sealant to the 7” diameter adapter collar, slide outer
ex vent over the collar, then secure with a 7” diameter band
clamp. See Figure 34.
19. Once the lower connections are made and the ex pipe is
secured with support bands as required (3 feet minimum be-
tween supports) then the roof ashing can be installed. See
Figure 35.
20. Install the roof ashing, and seal using common construc-
tions practices.
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 ex pipe (or hard pipe) just above the restop
thimble. This collar will act as a shield to prevent blown in-
sulation 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 ue
and outer telescopes with the hard pipe assembly, then secure
by installing a minimum of two (2) sheet metal screws into
the overlapped anges of the cap and pipe.
23. Figure 36 shows a completed installation with components
identied and other installation information such as heights
and clearance to combustibles.
7” DIA. FLEX
VENT PIPE
4” DIA. FLEX
FLUE PIPE
4” DIA. FLUE
ADAPTOR
COLLAR
7” DIA. INLET
ADAPTOR COLLAR
(WITH GASKET)
BAND CLAMP
APPLY HIGH
TEMPERATURE
SEALANT
Figure 34
Figure 35
DVVK-4FV DIRECT VENT TERMINATION KIT (cont.)