20306748
25
MLDV Series Gas Fireplace
VENTING INSTALLATION
4" X 7" FLEX PIPE
If you prefer to use 4" x 7"
fl
ex pipe, you must install model
7TDVP58 reducer (5" x 8" to 4" x 7") onto the
fi
replace
collar. Then follow the assembly guidelines for 5" x 8"
fl
ex
venting.
Figure 42 -
Typical Vertical Flex Vent Installation
Figure 44 -
Typical Horizontal Flex Vent Installation
Termination
Cap
Storm Collar
Roof Support
Flashing
Rigid Pipe
Length
Flex to Pipe
Adapter
(DVFFA/8)
Firestop
UL1777 Flex
PIpe
Screws
(3 Places
equidistant
just above
gear clamp)
4" x 7"
Rigid Pipe Length
Flex to Pipe Adapter
(DVFFA/8)
Gear Clamp
1
3
⁄
4
" Flexible Pipe and Adapter
Outer Collar Overlap
UL1777 Flex Vent
Figure 43 -
Typical Pipe Connection
Gear
Clamp
7TDVP58 5" x 8" to
4" x 7" Reducer
Figure 41 -
Typical 4" x 7" Appliance Connection
UL1777
Flex Vent
Screws
(3 places,
equidistant
just above
gear clamp)
1
3
⁄
4
" Flexible
Pipe and
Adapter Outer
Appliance
Starting Collar
5" x 8" to 4" x 7"
Adapter (7TDVP58)
Gear Clamp
Screws
(3 Places equi-
distant just above
gear clamp)
Gear Clamp
UL1777
Flex Vent
1
3
⁄
4
" Flexible Pipe and
Collar Overlap
Vermont
Castings Group
Horizontal Vent
Termination