Dungs FRM 100025 HD, Instruction Manual, Page: 121 / 174

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Edition 10.15 • No
. 270 442
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9. Installation
9.1 General information
• This device can only be installed in
compliance with the rules and stand
ards applicable and in accordance with
the local regulations and authorisa -
tions that may be necessary.
• Install the device in a building or
housing, do not install it outdoors without suitable
protective measures!
• The work area must be provided with general safety
devices.
• The lifting devices used must be suitable for the load
to be lifted.
• Enough installation space for operation and mainte -
nance has to be provided.
• It is recommended to install a filter with a pore size ≤
50 µm upstream of the regulator.
• The installation must not impair the functioning of
other components.
Check prior to installation!
• Shut-off valves both on the inlet and outlet side are
closed.
• Lines are free from combustible gas.
• Prevent explosive gas-air mixture: the room atmosphere
must constantly be monitored through gas concentration
measuring devices for the detection of gas leakages.
• Ensure electrically conductive bridging. Prevent contact
voltage and ignitable flashover.
• The performance data on the type plate correspond to the
ordering data.
• Flanges on the inlet side and outlet side of the connecting
line are parallel.
• The sealing surfaces of the flange are undamaged and
clean.
• The maximum inlet pressure of the system is lower than
the maximum admissible pressure of the regulator.
• Protective caps at the connection flange, if any, must be
removed.
• The minimum distances for the setting must be observed.
• The pipeline on the inlet side must be free of water and
dirt.
Note during installation!
• Mounting must be carried out in a tension-free state.
• Tighten the screws crosswise.
• Tightening torques must be observed.
• Vent lines and blow-off lines have to be positioned indi -
vidually.
• Vent lines and blow-off lines must lead outdoors: gases
must be able to escape to a non-hazardous environment.
• The pulse lines may not be shut off.
• The specified distance between the measuring points of
the pulse lines must be observed.
• The flow direction (arrow) on the housing must be fol -
lowed.