Giersch GG20-LN, Техническая информация и инструкции по установке

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12
E
.0
4.
99
•
G
. 0
9.
05
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2
18. Gas burner with gas train ....
Version MB:
Exact pneumatic mixture control for optimum energy
utilisation and combustion.
Technical data of gas train MB...
Gas types: Gas type families 1, 2 and 3, acc. to DIN EN 437/EN 2003-09
Inlet pressure: p
E
:
15 to < 360 mbar
Permissible outlet pressure: pG
≥
0..4 to < 100 mbar
Ambient temperature: -15°C to +70°C
Connecting flanges: The connecting flanges are secured with 4 screws. The flanges can be turned
through 90° or 180° in each case. Pressure measuring points in
inlet and in outlet.
Filter: Plastic gauze
Gas pressure monitor
The gas pressure monitor (p
w
) serves to monitor the
gas inlet pressure. The burner is shut down if the gas
inlet pressure drops below the set minimum value
(preset at factory to 12 mbar). The burner starts up au-
tomatically again when the minimum pressure is ex-
ceeded.
Perform the following checks in the course of commissioning or servicing:
Slowly close the ball valve during operation. The gas pressure monitor must switch off the burner
before the max. CO concentration of 10,000 ppm is reached. If the burner does not switch off,
slowly increase the switching point of the gas pressure monitor until it does.
If the burner restarts immediately after shut-down with the ball valves fully open and shuts down
again when the solenoid valves open, the required connection flow pressure is too low. A further
reason for this behaviour could be excessive soiling of the gas filter.
p
W
Start-up