6.2 Installation
In addition to the generally applicable installation guidelines,
the following points must be observed:
•
current TRF (private area)
•
accident prevention regulation DGUV 79 +80
(commercial sector)
•
corresponding DVGW worksheets
NOTE!
The installation position of the pressure regulator
must be carried out according to the enclosed
support device. It is also important to note that the
installation position of the vents must be selected in
such a way that any water accumulation can drain
off.
The interior of the pipeline must be free of foreign
particles.
A tension-free installation must be ensured.
The pressure regulator must not serve as a fixed
point; it is supported by the pipeline system.
Observe flow direction (marked by an arrow on the
product).
The pressure regulator must be mounted and
protected in such a way that dripping water cannot
penetrate. When mounting on an underground liquid
gas tank, we recommend a ventilation set (art. no.: 9
03 110 8 5 000 2). If the pressure regulator is used
outdoors, it must be mounted under the protective
cover or in a protective box.
•
When tightening the POL connection, avoid any
force on the pressure regulator.
•
Prevent sealant from penetrating the gas-carrying
components.
•
For threaded connections, always use a suitable
spanner to counteract.
•
After assembly a careful leak test must be carried
out.
6.3 Leak test
CAUTION: The control device must not be
included in a strength test (design review) of the
entire installation.
•
Close all shut-off valves of the connected devices.
•
apply test pressure according to TRF 2012
•
wait for temperature adjustment
•
test duration 10 minutes (the pressure must not
drop)
•
spray all connections with foaming agents (e.g. leak
detection spray) and check for leaks
NOTE!
We recommend the leak test with our testing device
(Art. No.: 1 00 098 14 018 2)
DANGER!
•
Before each commissioning of a new installation or
recommissioning of an installation after repairs or
modifications, the following must be ensured:
•
proper completion of all installation/assembly work!
•
commissioning only by "Qualified personnel "(see
point 2.3).
•
passed leak test
7. Operation
7.1 Initial commissioning
After completion of the leak test the pressure regulator is
ready for operation.
7.2 Decommissioning
If the supply and consumption system is to be taken out of
operation, all shut-off valves must be closed and the pipe
system drained. All open connections must be secured with a
suitable seal.
7.3 Recommissioning
When recommissioning the regulator, make sure that all the
relevant steps are repeated as described in section 6.1 to
section 6.3.
If recommissioning is not possible, the manufacturer must be
informed.
7.4 Fault clearance OPSO (SAV)
If the OPSO has locked, indicated by the visual indicator
(red), the following steps are required:
•
Close the tapping valve on the liquid gas container
•
Relieve the pressure on the pressure regulator (on
the inlet and outlet side)
•
Turn off the OPSO display
•
Place the OPSO plunger with the enclosed lever tool
on the red indicator and pull it out until it engages
•
After rectifying the fault, open the gas outlet valve
7.5 Maintenance
If the points in section 6 are observed, the pressure regulator
is maintenance free.
8. Cause and remedy of operating faults
8.1 Fault detection
DANGER!
When troubleshooting, the hazard warnings
under 2 must be observed.
•
If the faults cannot be rectified using the following
table "Troubleshooting (8.2)", the manufacturer must
be consulted.
•
In case of malfunctions of the function or the
performance, it must be checked whether the
installation work has been carried out and completed
according to these operating instructions.
•
The information on pressure, temperature, and
direction of flow as well as the operating conditions
must correspond to the data sheet or the technical
data on the type plate
8.2 Troubleshooting
Fault
Measures
Gas smell
Caution: Fire and
explosion hazard!
Keep calm, close the gas supply,
open windows and doors, do not
operate any electrical switches,
contact a specialist
No gas flow
Open shut-off valves, check level
indicator if necessary,
OPSO is closed (see
Recommissioning OPSO), check
the filter in the inlet connection as
well as the vent openings and clean
if necessary or contact the
manufacturer.
Consumption
appliance on fault
After depressurising the system,
connect the "Müller test unit" to the
appropriate test connections on the
regulator and take measurements:
•
inlet pressure (upstream
pressure before the controller
stage)
•
outlet pressure (idle pressure,
consuming device not in
operation
•
outlet pressure (flow pressure,
consumer unit in operation)
•
connection pressure at the
consumer unit
Then compare the values with the
technical data of the regulator and
the consumer unit.