Riello RL 50 - 2 nd stage fan air damper valve

6423
24
GB
Start-up, calibration and operation of the burner
• 2nd stage fan air damper valve
Set switch 2)(Fig. 24) to the 2nd stage position and adjust the air
gate valve 1)(Fig. 25) by turning the hex element 6), after having
loosened the ring nut 5).
Air pressure at attachment 1)(Fig. 26) must be approximately the
same as the pressure specified in (Tab. K) plus the combustion
chamber pressure measured at attachment 2).
Refer to the example in the figure.
NOTE:
in order to facilitate adjustment of hex elements 4) and 6)
(Fig. 25 on page 23), use a 3 mmc Allen key 8)(Fig. 25 on
page 23).
2nd STAGE
Tab. K
mbar = Air pressure in 1) with zeropressure in 2);
(1)
With shutter 4)(Fig. 10 on page 15) retracted.
Fig. 26
D8633
Gas oil kerosene
GPH mbar GPH mbar
25 6.1 24.8 8.2
29 6.2 27.3 8.5
33 6.4 31.6 8.9
37 6.5 33.9 9.0
41 6.6 38.4 9.1
45 8.0 40 9.3
50 10.1 41.8 9.8
50 9.1
(1)
45.5 10.3
48.5 10.5
49.5 13.2
49.5
(1)
11.6