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2
INTERIOR STRAIGHT INSTALLATION - SINGLE FLOOR
When using the Reduced Clearance Support (RCS) at
the attic level, the use of the attic radiation shield
is not required. The Reduced Clearance Support
(RCS) acts as an attic radiation shield when
installed with insulation and a collar (provided)
(see figure 3).
NOTE: A Finishing Support (FSC) combined with an Attic
Radiation Shield (ISIA) can also be used for this
application. Refer to page 8 for installation guide.
Step 1: Locate the chimney in a convenient place as
near as possible to the appliance outlet.
Step 2: Cut and frame the opening in the ceiling and
roof where the chimney will pass.
NOTE: It is important to follow the cutting dimensions
for floor openings as prescribed in this manual.
Step 3: From below, push the Reduced Clearance
Support into the framed opening in the ceiling.
Ensuring the support is level, attach the support
to the framed opening using (12) - 3" spiral
nails or #8 x 1 1/2" wood screws (see Figure 3).
NOTE: At least 3 1/2" of the support must extend
down below the finished ceiling. This ensures
minimum clearances are maintained to
stovepipe. Fix the Finish Trim around the support
using supplied screws.
CHIMNEY
Reduce Clearance
SIZE
Support
6"
10-1/8'' x 10-1/8''
7"
11-1/8'' x 11-1/8''
8"
12-1/8" x 12-1/8"
6
FRAMING DIMENSION
ROOF
12-3/8'' x 12-3/8''
13-3/8'' x 13-3/8''
14-3/8" x 14-3/8"
Table 3
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Reduced Clearance
Support (RCS)
Figure 3
2" CLEARANCE
TO ROOF FRAMING
CHIMNEY TO CEILING FRAMING G
1 1
3 3
min
min
2 2
Reduced Clear.
Support (RCS)
Figure 4
NAILS OR SCEW
S
RAIN CAP
STORM COLLAR
FLASHING
ROOF RADIATION
PLATE (USA only)
COLLAR
(Included w/ RCS)
FINISH TRIM
INSULATION
"ROCKWOOL"
(Included w/ RCS)
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