Dungs FRM 100025 HD, Instruction Manual, Page: 137 / 174

28 …64
Edition 10.15 • No
. 270 442
29 … 64
Pos. Designation
1 Shut-off valve, inlet side
2 Filter
3 Pressure gauge with pushbutton
4 Venting ball valve
5 Regulator with integrated SSD
6 SBV with shutoff valve
Pos. Designation
7 Pressure gauge with pushbutton
8 Venting ball valve
9 Test burner
10 Shut-off valve, outlet side
11 Hose
12.4 Recommissioning
12.5 Decommissioning
1. Close the shutoff valve upstream of the bypass.
2. Remove the hose.
3. Open the ball valve upstream of SBV.
1. Slowly close the shutoff valve on the outlet side.
2. Slowly close the shutoff valve on the inlet side.
13. Faults and related causes
Fault on SSD Possible causes Troubleshooting
It is not possible to open/
activate the SSD.
The pulse line is not installed. Install the pulse line.
The pulse line is clogged. Clean the pulse line.
The pulse line is leaky. Seal the pulse line.
The pulse line is broken. Replace the pulse line.
The pulse pressure is outside the adjustment range.
Set the shut-down pressure of the SSD or the
outlet pressure.
The adjusting springs are not suitable for the application. Replace the adjusting springs.
The adjustment range of the SSD is outside the outlet pressure. Replace the SSD or the ASE.
The SSD cannot be acti -
vated.
The pulse line is not installed. Connect/install the pulse line.
The pulse line is clogged. Clean the pulse line.
The pulse line is leaky. Seal the pulse line.
The pulse line is broken. Replace the pulse line.
The pulse pressure is outside the adjustment range. Set the shut-down pressure of the SSD.
The adjusting springs are not suitable for the application. Replace the adjusting springs.
The SSD can be activated,
but not sealed.
The valve disc is damaged or worn out.
Replace the ASE or have it repaired by
DUNGS.
The valve seat is damaged. Replace the valve seat.
The movable parts are contaminated with foreign particles. Clean the movable parts or replace the ASE.
The drive is damaged. Replace the ASE.
The O-ring is damaged. Replace the O-ring or the ASE.
The SSD is leaking towards
the atmosphere.
The working diaphragm is damaged.
Change the working diaphragm or replace the
ASE.
The sealing ring between the ASE and the housing of the SSD is
damaged.
Replace the sealing ring or the ASE.
The O-ring in the ASE is damaged. Replace the O-ring or the ASE.
• Repair work must only be performed by authorized and skilled personnel.
• Only use original spare parts.
4. Slowly open SSD, see section 11.3.
5. Once SSD has been opened completely, open the shutoff
valve on the outlet side.
3. Check if gas is available in the test section and release it
safely into the atmosphere.