B&C Technologies IM Series Industrial Ironer - Manual (Page 137)

11
BURNER CALIBRATION
The optimum calibration of the burner requires an analy-
sis of the flue gases at the boiler outlet.
Adjust successively:
1 - First firing output
2 - Max. burner output
3 - Min. burner output
4 - Intermediate outputs between low and high fire
5 - Air pressure switch
6 - Minimum gas pressure switch
1 - FIRING OUTPUT
Pilot adjustment has been illustrated on page. 7.
2 - MAXIMUM OUTPUT
Maximum output of the burner must be set within the fir-
ing rate range shown on page 5.
In the above instructions we left the burner running in
MIN. output operation. Now press switch 2)(A) “increase
output” and keep it pressed until the servomotor has
opened the air damper and the gas butterfly valve to
90°.
Gas calibration
Measure the gas delivery at the meter.
A guideline indication can be calculated from the tables
on page 6, simply read off the gas pressure on the U-
type manometer, see fig.(C) on page 10, and follow the
instructions on page 6.
- If delivery needs to be reduced, reduce outlet gas
pressure and, if it is already very low, slightly close
adjustment valve.
- If delivery needs to be increased, increase outlet gas
pressure.
(A)
1 2
D791
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