4.4 ELECTRODE SETTING
WARNING: Before assembling or removing the nozzle, loosen the screw (A) and move the elec-
trodes ahead.
WARNING
4.5 BURNER START-UP CYCLE
Normal
Thermostat
Motor
Ignition transformer
st
1
stage valve
nd
2
stage valve
Lock-out lamp
3397
4 ± 0.3 mm
D5288
A
~12s
~5s
MOVE THE ELECTRODE HOLDER
BACKWARDS TO THE END
Lock-out, due to light-failure
D5810
~12s
12 GB
6.5 ± 0.5 mm
~5s