5
FIG. 7
FIG. 8
NAIL STRAPPING
IN PLACE
(FOUR PLACES)
NAIL THROUGH
SLOTS (FOUR
PLACES)
with Support Bracket is used. (See Fig. 9.) This 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.
9, the bottom end of the adjustable length sections should
not be secured with the clamp or screws provided. This
will allow movement to compensate for expansion. See
section titled “Adjustable Length Sections” on Page 7.)
Round Support Plates
The Round Support Plate (RSP) Support is designed for
use with 9 inch diameter and larger Type B Gas Vent.
Each support is designed to support up to 30 feet of Vent
Pipe when installed as follows:
1. It is recommended that the Vent Pipe be supported at
least every other floor. The distance between supports
must not, in any case exceed 30 feet.
2. The circular cutout in the Round Support Plate is
designed to engage the uppermost recess in the female
end of the Vent Pipe. (See Fig. 10.)
3. Surround the Vent Pipe with the two identical Support
Plate halves. (See Fig. 11.) Engage the plate edges in the
uppermost pipe recess as described in Step 2. Use two
pair of bolts and nuts to hold the plate halves together.
(Four predrilled tabs are provided for this purpose.)
4. Pass Ameri-Vent Type B Gas Vent through opening in
Firestop Support (FSP).
5. NOTE: If used as a support, install Support Bracket
(SB) as shown in Fig. 6. Clamp bracket securely to pipe
section using the pair of bolts and nuts provided.
For installations with multiple supports, an adjustable
length section of Type B Gas Vent should be installed
between each pair of locations where a Firestop Support
FIG. 9
FIRESTOP SUPPORT
WITH SUPPORT BRACKET
20 FEET
MAXIMUM
20 FEET
MAXIMUM
APPLIANCE
DRAFT HOOD
ADJUSTABLE LENGTH
SECTION
FIRESTOP SUPPORT
WITH SUPPORT BRACKET
ADJUSTABLE LENGTH
SECTION
FIRESTOP SUPPORT
WITH SUPPORT BRACKET
ADJUSTABLE LENGTH
SECTION
