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C.I.B. UNIGAS
- M039241CB
26
5
Start the burner up by means of the thermostat series (terminals 3 and 4 - see wiring diagrams) and wait unitl the pre-purge phase
comes to end and that burner starts up;
6
drive the burner to high flame stage, by means fo the thermostat
TAB
(high/low flame thermostat - see Wiring diagrams), as far as
fully-modulating burners, see related paragraph.
Berger STA6: to move the cams, act on the related screw.
Siemens SQN72: a key is provided to move cams I and IV, the other cams can be moved by means of screws.
On the BERGER STA actuator, the manual air damper control is not provided. On the Siemens actuator the AUTO/MAN mode is provi-
ded (see picture).
7
During high fire operation, oil pressure is about 4-4.5 bar (read on oil pressure gauge).
Fig. 15
8
Set the atomising air pressure switch
PA
(Fig. 16) at 0.5 bar
Berger STA6 B2.41/6
Siemens SQN72.2A4Axx
Actuator camsBerger STA
Siemens SQN72
High flame position (set to 90°)
ST1
I (red)
Low flame and ignition position
ST2
III (orange)
Not used
MV
II (blue) - IV (black)
A
C
B
ST1
ST2
MV
IV
III
II
I
AUTO/MAN
oil pressure gauge
compressed air ressure gauge
Содержание PBY70
Страница 7: ...C I B UNIGAS M039241CB 7 Overall dimensions mm boiler recommended drilling template ...
Страница 16: ...C I B UNIGAS M039241CB 16 HYDRAULIC DIAGRAMS Fig 8 Hydraulic diagram 3ID0024 ...
Страница 18: ...C I B UNIGAS M039241CB 18 Fig 9 Hydraulic diagram 3I2D 01 ...
Страница 23: ...C I B UNIGAS M039241CB 23 Hydraulic connections Key G Gas A Air O Oil CA Cleaning air Fig 12 G G O A CA A O CA ...
Страница 37: ...C I B UNIGAS M039241CB 37 ...
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