
Y1
Y
Y
Y
Y
X
X
X
X
X2
X
X1
Y1
Y
Y
Y
Y
X
X
X
X
X2
X
X1
Y1
Y
Y
Y
Y
X
X
X
X
X2
X
X1
Y1
Y
Y
Y
Y
X
X
X
X
X2
X
X1
A
B
C
E
D
14
7 CONCENTRIC PATHWAYS
Table of concentric pathways
Pathway
Illustration
X total in metres
Y total in metres
Restriction
x = vertical and y = horizontal
min*
max*
min*
max*
1071
Indirect façade outlet G20/25.3/G30
A-B
1
3
0
3
Remove baffle plate
Roof pass-through without slope
C
2
12
From 2 meter
Roof pass-through with 45º slope**
D
3
12
0
4
From 2 meter
Roof pass-through with 90º slope***
E
1
12
0
3
From 2 meter
90 bend: calculation length 2 metres
* length including roof or exterior wall outlets. Always adhere to a starting length of 1 metre!
** Ratio vertical : horizontal X + X1 + X2: Y ≥ 2: 1
*** Ration vertical : horizontal X + X1: Y ≥ 2: 1
Restriction calculation 1071
Wall pass-through 90° bend
Remove the baffle plate and no restriction
Note! Only direct wall ducts are allowed on NG Units
Wall pass-through 1 metre vertical, 90° bend, max. 3 metres horizontal
Remove the baffle plate and no restriction
Roof pass-through 2 to 5 metres vertically
Insert 30 mm restriction plate
Roof pass-through 5 to 12 metres vertical
Insert 40 mm restriction plate
Содержание TL38FS
Страница 1: ...INSTALLATION INSTRUCTIONS FOR MODELS TL38FS ...
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