116
Gas
Edition 10-2008a
Gas volume to the burner
RPM of burner blower motor
MaxStartMin
correct CO
2
CO
2
too high
CO
2
too low
Blower RPM
m³ Air volume
kg or m³ of Gas
CO
2
Values
CO
2
set: - Correct gas - air mixture ratio
- Heat power corresponds with factory speci cation
CO
2
too high: - gas - air mixture ratio too rich
- burner runs with overload
- Damage to heat exchanger, sooting possible
CO
2
too low: - gas - air mixture ratio too lean
- burner runs with less power than speci ed
- Start up problems may appear (specially when unit is cold)
Actual CO
2
values MUST be determined by ue gas analysis.
Correct CO
2
values as well as a brief adjustment instruction you will nd on the table for burner
adjustment.
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