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LMV2635.EN.202001_V2
Filter (pos. F1)
The filter (F1) prevents dirt and welding globules from the gas supply line from
getting into the equipment of the gas train. This protects the equipment from
damage caused by contamination.
Safety valves (pos. VA1 and VA2)
These safety valves automatically open/close the gas supply to the burner. Two gas
safety valves (VA1 + VA2) are used for safety reasons.
The second safety valve (VA2) has an integrated gas pressure regulator that makes
sure the gas pressure on the burner head is constant.
Minimum gas pressure safety device (pos. LD1)
The pressure switch (LD1) is activated when the main gas pressure reach under the
minimum limit value. The setting value is determined during the commissioning of
the burner.
Maximum gas pressure safety device (pos. HD)
The HD pressure switch monitors the maximum burner/boiler capacity and is
mounted on the burner head to control the burner load by means of air pressure.
The settings of the pressure switches is determined when commissioning the burner
system.
Manometer (pos. M) en press-button valve (pos. K2)
By pushing on the press-button valve the supplied inlet pressure can be read off the
manometer.
Manometer (pos. M) and push button valve (pos. K2)
Press the push button valve to read the supplied inlet pressure on the manometer.
4.4 Pilot gas line
Shut-off valve (pos. K1)
The ball valve (K1) is used to bleed the gas supply line. The bleed line has to
include a separate pipe through the roof to the outside air. The opening has to be
protected against contamination, dirt and rain.
Plug off the ball valve if there is no bleeding line.
Pilot gas solenoid valves (pos. MK1/MK2)
The pilot gas solenoid valves automatically open or close the gas supply to the pilot
burner (pos. AB).
