2587
22
GB
Start-up, calibration and operation of the burner
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.
489 T50
In the sketch on the left, the combustion head is set for an output
of 1.65 GPH at 8 bar (for kerosene) or 1.10 GPH at 12 bar (for
gas oil).
488 T50
In the sketch on the left, the combustion head is set for an output
of 1.50 GPH at 12 bar (for gas oil) or 2.25 GPH at 8 bar
(for kerosene).
The shutter is level with set-point 3, as required by the schedule
at page 19.
Combustion head settings indicated in the schedule are valid for
most cases.
The setting of the fan output according to the installation should
normally be done only through the air damper.
8.9
Burner start-up cycle
Lock out is indicated by a lamp on the control box (3, Fig. 1 to
page 8)
Fig. 21
Blast tube
Regulating rod
Shutter
Terminal plane of the blast tube
2
1
3
5
D5398
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
~ 12s
D5229
~ 12s
~ 5s
Lock-out due to failure to light
Normal
Fig. 22
Содержание RDB3 CF 489T50
Страница 2: ...Original instructions ...
Страница 27: ......