CIB UNIGAS - M039168CC
26
Attention!
if it is necessary to change the head position, repeat the air and gas adjustments described above.
11 the air and gas rate are now adjusted at the maximum power stage, go on with the point to point adjustement on the
SV
adjusting
cam as to reach the minimum output point.
12 as for the point-to-point regulation, move the gas low flame microswitch (cam III) a little lower than the maximum position (90°);
13 set the
TAB
thermostat to the minimum in order that the actuator moves progressively towards the low flame position;
14 move cam III to the minimum to move the actuator towards the low flame until the two bearings find the adjusting screw that refers
to the lower position: screw
V
to increase the rate, unscrew to decrease.
15 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.
16 Now adjust the pressure switches (see next par.).
VRT
VB
“MAX”head position
head position
ID1
VF
PA
SC
SV
GV
ID2
V
SV
Gas butterfly valve closed
Gas butterfly valve open
