Operating instructions

20306750
29
Designer Series Direct Vent Gas Fireplace
D. Attaching exible venting to vertical termination
assemblies.
1. When using Duravent pipe, an Vermont Cast-
ings Group ex-to-pipe adapter and/or rigid pipe
section(s) is required to connect the exible vent
assembly to the vertical termination by using
three self-penetrating screws.
2. Review Figure 44 and corresponding instruc-
tions for proper overlap, clamp and screw place-
ment.
3. Three each self-penetrating screws are drilled
opposite one another and below the gear
clamp.
4. Use only listed and approved terminations and
accessories, installed per the installation instruc-
tions and Figure 43.
E. Installing exible venting to horizontal termination
assemblies.
1. Connect the 5" exible vent to the horizontal
termination as in Figure 45.
2. Connect the 8" exible vent to the termination
ring as in Figure 45.
3. Review Figure 45 for proper overlap and clamp
placement.
4. Three each self-penetrating screws are drilled
opposite one another and below the gear lamp.
5. Use only listed an approved terminations and
accessories, installed per the termination instruc-
tions and Figure 45.
FP1974
typical flex install
Termination
Cap
Storm Collar
Roof Support
Flashing
Rigid Pipe
Length
Flex to Pipe
Adapter
Firestop
UL1777 Flex
PIpe
Figure 43 -
Typical Vertical Flex Vent Installation
FP1975
pipe connection
Screws
(3 Places
equidistant
just above
gear clamp)
Rigid Pipe Length
Flex to Pipe Adapter
Gear Clamp
1
3
⁄4" Flexible Pipe and Adapter
Outer Collar Overlap
UL1777 Flex Vent
Figure 44 -
Typical Pipe Connection
Gear
Clamp
FP1976
horizontal flex
Screws
(3 Places equidistant just
above gear clamp)
Gear Clamp
UL1777 Flex Vent
1
3
⁄4" Flexible Pipe and
Collar Overlap
Vermont Castings
Group Horizontal
Vent Termination
Figure 45 -
Typical Horizontal Flex Vent Installation
DVFF8A/8 5" x 8" to
5" x 8" Flex Adapter
FP1974
VENTING INSTALLATION