Trimline Opal
Installation instruction
16
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*
Trimline Opal – 1121
Indirect façade outlet G20/25
See restriction conditions
Indirect façade outlet G30/G31
See restriction conditions
Roof pass-through with 45º slope**
From X total - Y > 6 meter:
G20 and G20/25 and G25.3: 40mm
G30/31: 50mm
Roof pass-through with 90º slope***
From X + X1- Y > 6 meter:
G20 and G20/25 and G25.3: 40mm
G30/31: 50mm
Achteraansluiting
See restriction conditions
45º Bend: calculation length 1 metres, 90º 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
*** Ratio vertical : horizontal X + X1: Y ≥ 2: 1
Restriction conditions all gas types
Distance
Baffle plate
Restriction
G20 and G20/25 Vertical lay out
1-6m
Yes
35mm
6-12m
Yes
45mm
G25.3 Vertical lay out
1-6m
Yes
35mm
6-12m
Yes
45mm
G30/31 Vertical lay out
1-6m
Yes
50mm
6-12m
Yes
55mm
Rear connection vertical pathways G20 and G20/25 and G25.3
1-6m
Yes
65mm
6-12m
Yes
80mm
Rear connection vertical pathways G20 and G20/25 and G25.3
1-6m
Yes
72.5mm
6-12m
Yes
80mm
G20 horizontal sections up to 2,5 meter including wall ducts
1m 90° en 0.5m
Yes
35mm
1m 90° en 2.5m
No
No
G20/G25 horizontal sections up to 2.5 meter including wall ducts
1m 90° en 0.5m
Yes
40mm
1m 90° en 3.5m
No
No
G25.3 horizontal sections up to 2.5 meter including wall ducts
1m 90° en 0.5m
Yes
35mm
1m 90° en 2.5m
No
No
G30/31 horizontal sections up to 3.5 meter including wall ducts
1m 90° en 0.5m
Yes
50mm
1m 90° en 2.5m
No
No
A-B
1
3
0
2,5
C
2
12
–
–
D
3
12
0
2
E
3
12
0
2
F
2
12
0
0,5
