Regulation Of Nozzles, Electrodes And Head/Disk - baltur BT 75 DSPN Manual De Instrucciones

DRAWING (AS REFERENCE POINT) SHOWING THE PLACING OF NOZZLE, ELECTRODES, FLAME DISK AND REGULATION
OF HEAD/DISK "D" DISTANCE
CHECKS
After the burner has been ignited, the safety devices should be
checked (photoresistances, locking-device, thermostat).
1) The photoresistance is the flame-control device and should
therefore operate if the flame goes out during operation (carry
out this check at least a minute after ignition).
2) The burner should get locked and stay like this, if the flame
does not appear in the normal way during the ignition phase,
within the time set on the control equipment. Locking entails
immediate fuel flow stoppage and consequently, the burner
stops (the lock pilot lamp lights up). To check efficiency of
the photoresistance and the locking-operation, proceed as
follows:
a) ignite the burner:
b) At least a minute after ignition, remove the photoresistance,
by withdrawing it from its seat, and simulate a no-flame
condition by blacking-out the photoresistance (block the
window in the photoresistance support with your hand or
a rag). The burner flame must now go out.
c) As you continue blacking-out the photoresistance, the burner
ignites and the photoresistance does not "see" the light;
the equipment locks within the time set on the programme.
The equipment can only be unlocked manually, by pushing
the appropriate button (unlocking). The locking efficiency
test should be carried out at least twice.
3) Check the efficiency of all the burner control thermostats
and/or pressure switches, verifying that their intervention
stops operation.
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