TOA Electronics BR-42 - Manual (Page 9)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 9
Note: If there is a room above ceiling level,
firestop spacer must be installed on the bottom
side of the ceiling. If an attic is above ceiling
level, firestop spacer must be installed on top
side of ceiling joist (Figures 21 and 22 ).
Figure 21
Figure 22
CHIMNEY 30
°
OFFSET THROUGH FLOOR
OR CEILING
It may be necessary to assemble the chimney at
30
°
when passing through the floor or ceiling
area. Use the F8FS30 firestop spacer as shown
in
Figures 23 and 24. Support the chimney at
floor or ceiling penetration with a FTF8 stabi-
lizer if distance of chimney below ceiling is 10'
or more. Maintain 1"* minimum air space to
combustibles from chimney sections.
*Note: 2" clearance to combustibles required
in Canada.
Firestop Spacer
Room Above
Firestop Spacer
Attic Above
F8FS30
Firestop Spacer
FTF8-S4 Stabilizer
1"* Min.
Air Space
30 ° Firestop
And Attic Above
10'
Max.
Attic Space
1"* Min.
Air Space
Figure 23
F8FS30
Firestop Spacer
FTF8-S4 Stabilizer
30 ° Firestop
And Room Above
10'
Max.
Room Above
1"* Min.
Air Space
1"* Min.
Air Space
Figure 24
For Canada Only
When installing the chimney system through
an open attic space, the attic shield assembly-
firestop spacer must be used (
Figure 25 ). This
installation is required only for use in Canada.
Note: For Canadian installations, all chimney
installed outside the building must be constructed
with galvalume (outer sections only) effective
January 1, 1992. The appropriate model desig-
nations are located in the back of this manual.
Step 4. Note: Chimney sections are con-
structed with a unique locking tab design,
which ensures an immediate, tight assembly
between sections. Plan your chimney require-
ments carefully before assembly as chimney
is difficult to disassemble after installation. If
disassembled, the tabs might become dam-
aged. Be certain tabs are properly formed to
ensure locking tabs engage properly.
The Security Chimneys FTF8 chimney system
is a two piece chimney, which snap together
from the fireplace up. Start with the inner flue
section with the lanced end up, snap lock it in to
the matching collar on top of the fireplace. At all
subsequent joints, the upper flue section fits
into the preceding flue section. Each piece
snaps together by means of locking tabs (9
locking tabs per joint). Check each piece by
pulling up slightly from the top to ensure proper
engagement before installing the next section.
Figure 25
Open Attic Space
If the flue has been installed correctly, it will not
separate when you test it. Also, the inner flue
joint where each section is joined should be
tight and flat without gaps (
Figure 26 ).
Figure 26
Outer pipe section installs in just the opposite
way; the lanced end goes down and each new
section goes OVER the outside of the previous
section installed (
Figure 27 ).
Figure 27
Note: Assemble one component of chimney at a
time (inner section first, then outer section last)
before proceeding with the next complete section.
Continue to assemble the chimney up through
framed opening. Assemble just enough to pen-
etrate the roof flashing openings (
Figure 28 ).
Always maintain 1"* minimum air space to
combustible materials and always check each
chimney joint (inner and outer) to ensure proper
engagement. Check vertical alignment of chim-
ney so that it projects from the roof in true
vertical position.
Figure 28
Locking
Tabs
(Lances)
1"* Min. Air Space
To Combustibles