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Start-up, calibration and operation of the burner
6.15 Stopping of the burner
The burner can be stopped by:
intervening on the disconnecting switch of the electrical sup-
ply line, located on the boiler panel;
removing the transparent protection 30) Fig. 5 on page 12,
after unscrewing the relative screw.
There are now two possibilities:
– using the operator panel according to the manual lockout pro-
cedure on page 31;
– using the switch 0-1 of Fig. 26 on page 27.
6.16 Final checks (with burner operating)
Tab. Q
Open the thermostat/pressure switch TL
Open the thermostat/pressure switch TS
The burner must stop
Turn the gas maximum pressure switch knob to the mini-
mum end of scale position
Turn the air pressure switch knob to the maximum end of
scale position
The burner must stop in lockout
Turn off the burner and cut off the power
Disconnect the minimum gas pressure switch connector
The burner must not start
Disconnect the connector of the ionisation probe
The burner must stop in lockout due to ignition failure
Make sure that the mechanical locking systems
on the various adjustment devices are fully tight-
ened.