Monessen Hearth WIDEVIEW WDV500 - Manual (Page 20)

20 78D0011
WDV Series Gas Fireplace Flex Vent InstallatIOn
Termination
Cap
Storm Collar
Roof Support
Flashing
Rigid Pipe
Length
Flex to Pipe
Adapter
(FPA/8)
Firestop
UL1777 Flex
PIpe
DVF8A/8
Adapter
Figure 26 -
Typical Vertical Flex Vent Installation
FP1975
pipe connection
Screws
(3 Places
equidistant
just above
gear clamp)
Rigid Pipe Length
Flex to Pipe Adapter
(FPA/8)
Gear Clamp
1C\v" Flexible Pipe and Adapter
Outer Collar Overlap
UL1777 Flex Vent
Figure 27 -
Typical Pipe Connection
Gear Clamp
FP1976
horizontal flex
Screws
(3 Places equidistant just
above gear clamp)
Gear Clamp
UL1777 Flex Vent
1C\v" Flexible Pipe and
Collar Overlap
MHSC Horizontal
Vent Termination
Figure 28 -
Typical Horizontal Flex Vent Installation
FP1974
2. Install firestop spacers, Figure 26, when penetrating ceiling, attic spaces, or walls.
3. Do not allow the flexible vent to bend in radius tighter than 5" (127 mm). Figure 25
4. Horizontal runs of flexible vent shall be supported at maximum 2 foot intervals; vertical runs,
five feet intervals. Metal strapping, properly secured, is an acceptable means to support the
flexible vent.
5. Flexible vent spacers are to be installed at intervals prescribed by the flexible vent manufac-
turer; and in such a way as to maintain concentric inner and outer vent spacing.
D. Attaching flexible venting to vertical termination assemblies.
1. When using Simpson pipe, an MHSC flex-to-pipe adapter (FPA) and/or rigid pipe section(s) is
required to connect the flexible vent assembly to the vertical termination by using three self-
penetrating screws.
2. Review Figure 27 and corresponding instructions 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 26.
E. Installing flexible venting to horizontal termination assemblies.
1. Connect the 5" flexible vent to the horizontal termination as in Figure 28.
2. Connect the 8" flexible vent to the termination ring as in Figure 28.
3. Review Figure 28 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 28.