Dungs FRM-NOC 100025 HD, Instruction Manual, Page: 26 / 76

26 … 76
MC • Edition 2022.08 • No
. 279 663 R
ev
. -0
M
max.
T
max.
M
max.
FRM-NOC...
9.4 Torques
The device must not be used as lever.
Use adequate tools!
Tighten the screws crosswise!
[Nm]
18
19
ISO 7005-2
DN -- -- -- 25 40 50 65 80 100 125 150
Rp ⅜ 1/2 3/4 1 1 1/2 2 2 1/2 -- -- -- --
M
max.
[Nm] t 10 s
70 105 225 340 610 110 1600 2400 5000 6000 7600
T
max.
[Nm] t 10 s
35 50 85 125 200 250 325 400 -- -- --
Max. torque of system accessories
M … / G …
M 4 M 5 M 6 M 8 M 10 G ⅛ G ¼ G 1/2 G ¾
M
max.
[Nm] t 10 s
2.5 Nm 5 Nm 7 Nm 15 Nm 40 Nm 5 Nm 7 Nm 10 Nm 15 Nm
Max. torque of flanged joint
Stud
M 12 x 55
(EN 13611)
M 16 x 65
(DIN 939)
M
max.
[Nm] t 10 s
30 Nm 60 Nm
• If a vent line runs through a roof, verify that the vent
line terminates above the point where water and snow
accumulation on the roof does not cover or isolate the
termination point from the atmosphere.
• To limit the consequences of rain or debris getting into
the vent, always turn the outlet of the vent down towards
the ground.
• Bug Screens:
• Some bugs are attracted to the smell of the natural/
LP gas odorant and could nest in the vent line, which
could seal the termination point. Install a bug screen
on the termination point to deter insects from nesting
in the line.
• Do not paint the bug screen.
• Points of Discharge
• The vent line must discharge away from where peo -
ple might walk or work, such as pedestrians, roofers
and other maintenance professionals.
• The vent line must discharge away from fresh air
intakes and from windows. See applicable fuel gas
installation code (e.g. CSA B149.1, NFPA 54, or
International Fuel Gas Code) for acceptable clear -
ances.
• The end shall be goose-necked downwards.