6 Commissioning and startup
10. Adjusting low fire
u
Press [G] and [L/A] keys simultaneously.
a
The burner drives to low fire.
a
The lower operating limit (
bu
) is displayed.
u
Set the low fire while observing:
• the data supplied by the appliance’s manufacturer - e.g. min. firing rate, min. stack
temperature;
• the burner’s capacity graph.
u
Determine the gas throughput and adjust, if necessary, the low fire (
bu
) using [+] key.
u
Press [G] and [L/A] simultaneously.
a
The combustion manager changes to Operating mode (
10
).
a
The programming of the combustion manager is completed.
11. Checking the start behaviour
u
Switch off and restart the burner.
u
Check the start behaviour and, if necessary, correct the operating point
P0
(ignition
position).
If the ignition firing rate has been altered:
u
Re-check the start behavior.
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Installation and Operating Instructions
Gas burner WG20.../1-C ZM-LN (W-FM 25)
