20062968
20
Installation
4.7.1
Air adjustment
Turn screw 4)(Fig. 17) until the notch identified is aligned with the
front surface 5)(Fig. 17) of the flange.
4.7.2
Gas adjustment
Loosen the 3 screws 4)(Fig. 17) and turn ring 5) until the notch
identified is aligned with index 6).
Tighten the 3 screws 1) fully down.
Example
RS 120/E LN, burner output = 3750 MBtu/hr
If we consult diagram (Fig. 17) we find that for this output the ad-
justments are:
•
air: R1 = notch 2;
•
gas: R2 = notch 5.
Note
Diagram (Fig. 16) indicates an optimal regulation for a type of boiler
seen in Fig. 5, page 9.
If the pressure of gas allows it, by closing ring nut (Fig. 5, page 9)
a reduction of the formation of NOx is obtained.
Continuing with the previous example, (Fig. 22, page 23) indicates
that for burner with output of 3750 MBtu/hr a pressure of approxi-
mately 2.8” is necessary at test point 3)(Fig. 17). If this pressure
cannot be reached, open the ring 5)(Fig. 17) to notch 4 or 5.
Make sure that the combustion characteristics are satisfactory and
free of pulsations.
CAUTION
To facilitate adjustment, loosen the screw 3)
(Fig. 17), adjust and then lock.
2
1
3
4
5
6
Fig. 17
D9804
Содержание RS 120/EV LN
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