Riello RS 160/E Installation, Use And Maintenance Instructions page 23

In diagram (Fig. 16) find the notch for:
Outside air adjustment - R1
– Turn screw 4)(Fig. 15) until the notch identified is aligned with
the front surface 5) of the connector.
In order to facilitate adjustment, loosen screw
6)(Fig. 15), adjust and then tighten.
WARNING
Central air adjustment - R2
– Loosen the 3 screws 1)(Fig. 15) and turn ring 2) until the notch
identified is aligned with index 3).
– Tighten the 3 screws 1) fully down.
Example:
Max. burner output = 5681 MBtu/hr
If we consult diagram (Fig. 16) we find that for this output the ad-
justments are:
– outside air: R1 = notch 8.6;
– central air: R2 = notch 0.
NOTE:
R2 adjustment (Fig. 16) is an indication only.
If possible, always keep the ring nut closed (notch 0); if air recovery
is required the nut may be opened following the indications in dia-
gram. Make sure that the combustion characteristics are satisfac-
tory and free of pulsations.
Once the combustion head adjustment is completed:
 push the burner on the sliding bars 3) at approximately 4" from
the pipe coupling 4) - burner in the position shown in Fig. 17;
 insert the electrode cable, then slide the burner as far as the
pipe coupling - burner in the position shown in Fig. 18;
 unscrew the 2 screws 2) from the extension 5) and reposition
them as previously Fig. 18.
 refit the screws 2) on the sliding bars 3);
 fix the burner to the pipe coupling with the screws 1).
When fitting the burner on the two sliding bars, it is
advisable to gently draw out the high voltage cable
until it is slightly taut.
WARNING
Key Fig. 17 and Fig. 18
1 Screw
2 Screw
3 Sliding bars
4 Pipe coupling
5 Extension sliding bars
6 Lifting rings
Installation
D2801
5
2
D10445
6
5
21 GB
Burner output
4
4"
3
1
6
5
Fig. 16
Fig. 17
D10446
6
Fig. 18
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