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(3) In case of suspension of water supply or power interruption, wait until the power or water is supplied
again in the condition of power “OFF”.
(4) In case of abnormal noise due to ignition failure or flame failure, the power switch “OFF” and the
gas in the firebox and the flue is to be purged by the blower, and try to re-ignite. If ignition failure
again, stop the operation and check the fuel in the oil storage tank, pressure of the oil pump, oil
temperature, flame eye(flame detector), ignition device and nozzle, etc.
(5) In case that the operation of boiler is to suspended for a moment and try to restart the operation for
the boiler using bunker-C oil, oil preheating is necessary up to appropriate temperature.
Preheating temperature:
A-heavy oil : 50 - 60
°
C, B-heavy oil : 90 - 110
°
C, C-heavy oil : 130 - 150
°
C.
2-5 Checking the Combustion Condition during Operation
For complete combustion, the balance of fuel and air volume( excess of air ratio) is to be appropriate. BOOSTER
boiler have so manufactured as to do complete combustion utilizing the automatic damper control of the three
position control method. The burning gas is also to be able to verified visually and checked as follows:
(1) When the flame color is red and black smoke in the stack
1) Lack of combustion air(damper closed).
2) Oil spray is not performed smoothly due to dust in the nozzle.
3) Oil temperature is too low.
4) Interval between flame panel and diffuser is in appropriate.
5) Oil quality is no good.
(2) When the flame color is bright and white smoke( the flame is short and split)
1) Combustion air is too much.
(3) The flame color is brown and white smoke but combustion condition is good
1) The moisture of exhaust gas has formed dew due to radiating in the flue and gas temperature drop.
(4) Flame failure during combustion
1) 1st. and 2nd. solenoid valve is shut off and oil supply is shut off through the flame detector’s
sensing.
2) Warning lamp of the protect relay is lit up and the alarm is buzzing informing abnormal
combustion.
3) Investigate and take a corrective action for the cause of warning lamp operation of protect relay,
and push the reset button for reoperation.
* Note
Trying for reoperation should be done minimum 1 minute after warning lamp operated. If the boiler
is not operated in spite of trying reoperation in several times, please contact to BOOSTER A/S team.
