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6 Commissioning and startup
3
. Presetting the gas setting pressure
If a controlled shutdown or lockout occurs during setting:
u Briefly press [G] and [L/A] keys simultaneously.
u Press [+] key.
a The combustion manager changes to setting level.
u Open the test point for the setting pressure and connect the pressure measuring
device.
u Open the gas isolating valve.
u Briefly press [-] and [+] keys simultaneously.
a The display shows E ACCESS.
u Press [+] key.
a The burner starts according to the sequence of operation and stops at the operating
point P0 (ignition position).
u Preset the determined setting pressure at the gas pressure regulator.
u Check the CO content in the flue gas and, if necessary, adjust combustion values
via the gas butterfly setting [G].
Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)
83055116 • 1/2016-05
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