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Round pipes
An inner diameter of @ 8' (200 mm) is recommended.
Flat ducts
The inner cross-section
must correspond
to the diameter
of the round pipes.
@ 8' (200 mm) approx. 50.3 inches 2 (324 cm 2)
o Flat ducts should have no sharp deflections.
o Use sealing strip for deviating pipe diameters.
Checking
the wall
® The wall must be level, vertical and adequately
load-
bearing.
o The depth of the bore holes must be the same length
as the screws. The wall plugs must have a secure grip.
o The enclosed screws and wall plugs are suitable for
solid brickwork.
Suitable fasteners must be used for
other structures.
Ventilator
Performance
Calculation
DUCT PIECES
SIZE
6 ,J
_
ROUND
7"
STRAIGHT
8"
I-- 1' =-I
lO"
31/4"x10 ''
STRAIGHT
3¼"x14"
STRAIGHT
6"
90 °
ROUND
7"
ELBOW
8"
6"
45 °
ROUND
7"
ELBOW
8"
3¼"x10"
N/A
90°ELBOW
_3¼"xl
0"
45°ELBOW
_
3¼"xt0"
FLAT
ELBOW
N/A
EQUIVALENT
QUANTITY
LENGTH
USED
t.2'
0.95'
0.7'
0.6'
0,7'
12'
8'
6'
5'
4'
3'
5'
15'
N/A
20'
_1_3
y4RO U N D TO
6"
1'
"xt0"
7"
1'
_11
3¼"xt0"
[]
6"
5'
O ROUND
ROUND TO
3¼"xt0"
o ELBOW
7"
8'
3¼''xt0''
6"
10'
TO ROUND
0 ° ELBOW
7"
5'
TOTAL
EQUIVALENT
LENGTH
TOTAL
BIZE EQUIVALENT
8UANTITY
DUCT PIECES
EQUIVALENT
LENGTH
USED
LENGTH
3¼"xt 0"
CENTER
REVERSE
ELBOW
LEFT
31/4"xt0 ''
CENTER
REVERSE
ELBOW
RIGHT
N/A
15'
N/A
25'
3¼"x10"
RIGHT
REVERSE
N/A
ELBOW
3¼"xt0"
LEFT
REVERSE
N/A
ELBOW
6 _
ROUND
.--4S''-_
WA L L CAP
7"
(. J _s_Model
#WC8
8
''='_'
"_rd--_
Model #WCt0
10,"="m
6 ,J
_>
ROUND
ROOF
7"
CAP
8"
2'
LONG
31/4"x t0 '' FLEX
MODEL #RD 1
T-j_F'X 3¼"
to" (
s¼"xlo"
_j-_'±
TO ROUND
- 6"-I
31/4,,xt0, ,
WALL CAP
25'
15'
2'
2'
20'
1'
2'
7"
3'
6"
10'
/"_'/7-_-..
7" In-Line
Backdraft
5'
Damper
4_
31/4"xt0"
Roof Jack
& Shutter,
Model #R J310
5'
TOTAL
11
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