5.6
Final checks (with burner operating)
Open the thermostat/pressure switch TL
Open the thermostat/pressure switch TS
Turn the gas maximum pressure switch knob to the mini-
mum end of scale position
Turn the air pressure switch to the maximum end of scale
position.
Turn off the burner and cut off the power.
Disconnect the minimum gas pressure switch connector.
Disconnect the ionisation probe wire
Make sure that the mechanical locking systems on
the various adjustment devices are fully tightened.
WARNING
Start-up, calibration and operation of the burner
27
The burner must stop
The burner must stop in lockout
The burner must not start
The burner must stop in lockout due to ignition failure
GB
Tab. J
20049577