Riello RLS 28/E, Инструкции по установке, использованию и обслуживанию

Страница: 22 / 41

20059594 20 GB
Installation
Tab. I
Example:
boiler output = 1360 MBtu/hr efficiency 80 %
Output required by the burner: 1360/0.8 = 1700 MBtu/hr;
1700/2 = 850 MBtu/hr (4.50 GPH) for nozzle
Therefore, two equal, 60°, 174 PSI nozzles are required:
1° = 4.50 GPH with 2° = 4.50 GPH,
or the following two different nozzles:
1° = 5.00 GPH with 2° = 4.00 GPH,
or: 1° = 4.00 GPH with 2° = 5.00 GPH.
4.6.2 Nozzle assembly
➤ Remove screw 1)(Fig. 13) and extract the internal part 2);
➤ install two nozzles with the box wrench 1)(Fig. 14), after hav-
ing removed the plastic plugs 2);
➤ fitting the wrench through the central hole in the flame stability
disk or loosen screws 1)(Fig. 15);
➤ remove disk 2)(Fig. 15) and replace the nozzles using the
wrench 3).
The nozzle for low fire operation is the one underneath the firing
electrodes (Fig. 16).
4.7 Electrodes adjustment
GPH
GPH MBTU/h
145 PSI 174 PSI 203 PSI 174 PSI
2.00
2.25
2.50
3.00
3.50 2.47
2.75
3.07
3.68
4.32 2.72
3.04
3.39
4.07
4.74 2.95
3.33
3.68
4.42
5.16 381
426
475
570
664
WARNING
➤ Do not use any sealing products such as gas-
kets, sealing compound, or tape.
➤ Be careful to avoid damaging the nozzle seal-
ing seat.
➤ The nozzles must be screwed into place tightly
but carefully.
Fig. 13
D1122
Fig. 14
D1146
Fig. 15
D1147
WARNING
Make sure that the electrodes are positioned as
shown in Fig. 16.
Fig. 16
D2539