baltur TBG 55 Instructions For Use Manual page 37

TWO STAGE GAS-FIRED BURNER
It is normally not advisable to connect a burner working on
a boiler for heating water for two-flame working. The burner
can also work for long periods of time with one flame alone.
The boiler is insufficiently loaded and so come out at too
low a temperature (less than dew point) giving rise to the
presence of condensation water in the flue. When the two-
flame burner is installed on a boiler for the production of hot
water for heating, it must be connected in such a way as to
work normally with both flames completely stopping, without
changing to the first flame, when the preset temperature has
been reached. For this type of working the thermostat for the
second flame is not installed and a direct connection is made
(jumper) between the equipment's terminals.
E
SINGLE STAGE AIR BURNER TBG 55
N
ADJUSTMENT SCHEME
G
To adjust the angle of opening of the air damper, slacken
L
the screw (1) and turn the hand wheel (2) to bring the
index to the desired position. Subsequently tighten the
I
screw to lock the damper.
S
Position 0: air damper fully closed.
H
Position 6: air damper fully open.
CAMS REGULATION SERVOMOTOR
SQN72.XA4A20 FOR TBG ...P
INSERTION AND DISINSERTION
LEVER MOTOR CONNECTION
CAMSHAFT
REFERENCE SCALE
I 2nd FLAME AIR ADJUSTING CAM (80°)
II TOTAL AIR CLOSURE (BURNER AT STANDSTILL (0°)
III 1st FLAME AIR ADJUSTING CAM (20°)
IV 2nd FLAME VALVE ACTUATING CAM (40°)
TO MODIFY THE REGULATION OF THE CAMS UTILIZED,
OPERATE THE RESPECTIVE RINGS (I - II - III - IV). THE INDEX
OF THE RING INDICATE ON THE RESPECTIVE REFERENCE
SCALE THE ROTATION ANGLE TAKEN UP FOR EACH CAM.
17 / 18
0006081041_201102
ADJUSTABLE CAMS
POSITION
INDICATOR