4" X 7" Flex Vent Pipe - Vermont Castings 500DVMNSCSB Installation And Operating Instructions Manual

FLEX VENTING INSTALLATION
4" x 7" Flex Pipe
If you prefer to use 4" x 7" flex pipe, you must install model
7TDVP58 reducer (5" x 8" to 4" x 7") onto the fireplace
collar. Then follow the the assembly guidelines for 5" x 8"
flex venting.
Flashing
Rigid Pipe
Length
Flex to Pipe
Adapter
(DVFFA/8)
Firestop
7TDVP58 5" x 8" to
4" x 7" Reducer
Figure 42 -
Typical Vertical Flex Vent Installation
20306747
Termination
Cap
Storm Collar
Roof Support
UL1777 Flex
PIpe
FP1974
typical flex install
UL1777 Flex Vent
FP1974
DVM Series Direct Vent Gas Fireplace
UL1777
Flex Vent
1 ⁄ " Flexible
3
4
Pipe and
Adapter Outer
5" x 8" to 4" x 7"
Adapter (7TDVP58)
Figure 41 -
Typical 4" x 7" Appliance
Connection
Screws
(3 Places
equidistant
just above
gear clamp)
Gear
Clamp
Figure 43 -
Typical Pipe Connection
Screws
(3 Places equidistant just
above gear clamp)
Gear Clamp
Figure 44 -
Typical Horizontal Flex Vent Installation
FP1976
horizontal flex
Gear Clamp
Appliance
Starting Collar
FP1972a
FP1972
appliance connection
4" x 7" Rigid Pipe
Length
Flex to Pipe Adapter
(DVFFA/8)
Gear Clamp
1 ⁄ " Flexible Pipe and Adapter
3
4
Outer Collar Overlap
UL1777 Flex Vent
FP1975
4 x 7 pipe connection
Vermont Castings
Group Horizontal
Vent Termination
1 ⁄ " Flexible Pipe and
3
4
Collar Overlap
Screws
(3 places,
equidistant just
above gear
clamp)
27