26
Attention!
if it is necessary to change the head position, repeat the air and gas adjustments described above.
13 as for the point-to-point regulation in order to set the cam foil shape, move the low flame microswitch (cam III) a little lower than the
maximum position (90°);
14 set the
TAB
thermostat to the minimum in order that the actuator moves progressively towards the low flame position (as for fully-
modulating burners, refer to the related paragraph);
15 move cam III towards the minimum to make the actuator move towards the low flame until the two bearings find the adjusting screw
that refers to a lower position: screw
V
to increase the rate, unscrew to decrease, in order to get the pressure as showed on dia-
gram on Fig. 15, according to the requested rate.
16 Move again cam III towards the minimum to meet the next screw on the adjusting cam and repeat the previous step; go on this way
as to reach the desired low flame point.
17 The low flame position must never match the ignition position that is why cam
III
must be set 20°- 30° more than the ignition posi-
tion.
18 Turn the burner off; then start it up again. If the adjustment is not correct, repeat the previous steps.
”MIN” position
”MAX” position
VB
VRT
ID
SC
RP
SV
V
Summary of Contents for RN510
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Page 65: ...RWF50 2x RWF50 3x User manual M12922CB Rel 1 0 07 2012...
Page 80: ...16 Note Specifications and data subject to change Errors and omissions excepted...
Page 81: ...KM3 Modulator USER MANUAL M12927CA Rel 1 0 10 2020...
Page 82: ...M12927CA MOUNTING 2...
Page 98: ...1 RWF55 5X RWF55 6X User manual M12926CA Rel 0 1 10 2015...
Page 99: ...2 DEVICE INSTALLATION Fixing system Drilling dimensions...
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Page 121: ...23 Note Specifications and data subject to change Errors and omissions excepted...
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