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5. Start-up
5.4
Gas settings
66
5.4.1.
Adapting to another gas type
WARNING
Only a qualified engineer may carry out the following
operations.
The boiler is preset in the factory to operate on natural gas H (G20).
For operation on another group of gases, carry out the following
operations:
4 Set the air/gas ratio.
¼ "Setting the air/gas ratio (Full load)", page 67
¼ "Setting the air/gas ratio (Part load)", page 69
4 Set the fan speed using the parameters MIN.VENT.,
MAX.VENT.BOIL, MAX.VENT.DHW and START SP.:
¼ See chapter: ""Professional" settings", page 82
MCA 15 - MCA 25 MCA 25/28 MI
29/04/2010 - 300022146-001-B
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