6
FIG. 12
ROUND
SUPPORT
PLATE
ADJUSTABLE
LENGTH
SECTION
30 FEET
MAXIMUM
30 FEET
MAXIMUM
APPLIANCE
DRAFT HOOD
ROUND
SUPPORT
PLATE
ADJUSTABLE
LENGTH
SECTION
ROUND
SUPPORT
PLATE
ADJUSTABLE
LENGTH
SECTION
4. Mounting holes are provided around the perimeter of
the Round Support Plate. Use appropriate fasteners to
secure the Support Plate halves to the opening between
floors. (NOTE: Round Support Plates should be attached
to the TOP of the opening only. See Fig. 12.)
5. For installations with multiple supports, an Adjustable
Length Section of Type B Gas Vent should be installed
between each pair of locations where a support is used.
(See Fig 12.) This allows the location of the pipe recess
to be in the proper position at each opening where a
support is to be used. The Adjustable Length Section also
provides relief for linear thermal expansion. The
Adjustable Length Section should be positioned directly
under the Vent Pipe Section which is being supported.
NOTE: When installed with the entire vent in a vertical
position as shown in Fig. 12, the clamps on Adjustable
Length Section should be left loose to allow for
expansion. (See section titled “Adjustable Length
Sections" on Page 7.)
Vent Pipe Hanger and
Support Bracket Assembly
The Vent Pipe Hanger (VPH) (sizes 3 inch through 7 inch)
and the Support Bracket Assembly (SBA) for 8 inch
through 12 inch Type B Gas Vent are used to provide
lateral and some vertical support for sections of Vent as
well as to provide for the correct clearance to combustible
materials. They also provide support and resupport for
offsets and horizontal runs.
FIG. 10
UPPERMOST
RECESS
FIG. 11
