Installation and operating instruction
Gas burner WG20…/1-C LN
7 Commissioning
83240802 1/2020-01 La
31-96
7.1.2 Check gas connection pressure
Minimum connection pressure
Add the combustion chamber pressure in mbar to the minimum connection pres-
sure. The connection pressure should not fall below 15 mbar.
Determine minimum connection pressure for low pressure installations from table
[ch.7.1.5].
Maximum connection pressure
Maximum connection pressure into isolating valve is 300 mbar.
Check connection pressure
DANGER
Risk of explosion due to excess gas supply pressure
Exceeding the maximum connection pressure (see name plate) can damage the
gas valve train and lead to an explosion.
Max. connection pressure see name plate.
Check gas connection pressure
Only in conjunction with W-MF and gas connection pressure > 150mbar
The pressure measuring device must be connected to the pressure regulator.
Check gas connection pressure, see additional sheet (print No. 835109xx).
Connect pressure measuring device to test point 1.
Slowly open isolating valve whilst observing the pressure increase.
If the connection pressure exceeds the max. connection pressure:
Immediately close isolating valve.
Do not start plant.
Notify system operator.
If the connection pressure does not maintain the min. connection pressure:
Do not start plant.
Notify system operator.
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