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31451-2-1013
Page 35
DVVK-4FV DIRECT VENT TERMINATION KIT
10. With the flex vent assembly and the 48” long hard pipe com-
ponents laid out on the floor, begin securing these parts to-
gether. First, apply a generous bead of silicone sealant to the
inside of the 4” diameter flex flue (not the end with the pre-in-
stalled connector), then slide the flex flue over the 4” diameter
hard pipe flue. Be sure to overlap at least 1-1/4”. Secure this
connection with a 4” diameter band clamp provided. Be care-
ful not to damage or tear the flex flue when tightening clamp.
11. Repeat the connection process for the outer 7” diameter flex
vent to hard pipe connection. Use silicone sealant at this joint
also, overlap at least 1-1/4”, then secure the joint with the 7”
diameter band clamp provided. Be careful not to damage or
tear the flex vent pipe when tightening the clamp.
12. While the venting is still on the floor, assemble the roof jack
components as shown in
Figure 53
and pre-install the roof
jack assembly to the hard pipe approximately 18” from the top
end of the hard pipe.
Figure 53
13. Now the pre-assembled vent system may be carried to the
roof, then lowered through the roof cutout opening (see step
5). Feed the flex vent end down through the roof opening and
firestop/thimble assembly installed in steps 4 through 6.
14. Secure the roof support assembly to the roof sheathing with at
least four nails/screws through each support bracket. Check
that the combustible clearances through the roof framing will
maintain at least a 1” clearance from the vent pipe.
15. Determine how high the vent terminal should be located
above the roof line based on the roof pitch information shown
in
Figure 54
. Adjust the vent system height by loosening the
pre-installed roof support pipe clamp and sliding the vent pipe
up or down as pre-determined, then re-tighten the pipe clamp.
Install a couple of sheet metal screws through the pipe clamp
into the outer hard vent pipe to lock in place.
16. Check to make sure that the bottom end of the flex vent is
long enough to reach the fireplace adapter collars. If too long,
trim off the extra flex vent not needed.
ROOF PITCH
H (Min.)
Flat to 6/12
12” (305mm)
6/12 to 7/12
15” (381mm)
Over 7/12 to 8/12
18” (457mm)
Over 8/12 to 16/12
24” (610mm)
Over 16/12 to 21/12
36” (914mm)
Figure 54
Summary of Contents for DVP36DP31 Series
Page 21: ...31451 2 1013 Page 21 Figure 30 Figure 31 Figure 32 EXAMPLES TOP VENT RUN...
Page 37: ...31451 2 1013 Page 37 Figure 57 DVVK 4FV DIRECT VENT TERMINATION KIT...
Page 47: ...31451 2 1013 Page 47 Figure 70 MILLIVOLT SYSTEM STANDING PILOT WIRING DIAGRAM...
Page 59: ...31451 2 1013 Page 59 INTERMITTENT PILOT CONTROL SYSTEM TROUBLESHOOTING...