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8.8
Combustion head setting
This is done when fitting the nozzle, with the blast tube removed.
It depends on the output of the burner and is carried out by rotat-
ing the regulating rod, till the terminal plane of the blast tube is
level with the set-point, as indicated in the schedule.
8.9
Burner start-up cycle
Normal
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
Lock out is indicated by a lamp on the control box (3, Fig. 1 to
page 8)
Start-up, calibration and operation of the burner
~ 12s
D5398
Lock-out due to failure to light
~ 12s
21
GB
Terminal plane of the blast tube
Regulating rod
2
5
3
1
Shutter
Blast tube
~ 5s
Fig. 20
D5229
Fig. 21
20158133
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