GENERAL INSTRUCTIONS
ADJUSTMENT OF BURNER
The burner is from the factory pre-set
to an average value that must then be
adjusted to the boiler in question.
All burner adjustments must be made in
accordance with boiler manu-facturers
instructions.These must include the
checking of flue gas temperatures,
average water temperature and CO
2
or
O
2
concentration.
GENERAL INSTRUCTIONS
The installation of the gas burner must
be carried out in accordance with
current regulations and standards. The
installers of gas burners should there-
fore be acquainted with all regulations
and ensure that the installation comp-
lies with the requirements. The instal-
lation, mounting and adjustment should
be made with the greatest care and
only the correct gas should be used.
OPERATING INSTRUCTIONS
The operating instructions accompanying
the burner should be left in a prominent
position in the boiler room.
INSTRUCTIONS
The user should be thoroughly in-
structed in the function of the gas
burner and the whole installation. The
supplier must instruct the user.
INSPECTION AND MAINTENANCE
Daily inspection is advisable.
START UP
After the burner has been fitted to the
boiler and the electric connection, the
leakage control, the venting and the
electric function test have been car-
ried out, the burner will be ready for
start-up.
Howerer, study the sections dealing
with adjustments of multi-bloc, com-
bustion air and combustion head.
Open the ball valve and switch on the
main switch. If the burner starts the
actual adjustment can be made.
ADJUSTMENT OF BURNER HEAD
The burner is equipped with an ad-
justment device changing the position
of the brake plate in the burner head.
This is used to adjust the correct pres-
sure drop over the combustion device
in order to obtain a good pulsation free
combustion.
Which position to use depends on
input and overpressure in the boiler.
172 305 28 97-01
A general rule is that the lower capa-
city the smaller the opening between
brake plate and combustion device.
COMMISSIONING OF INSTALLA-
TION
Control of the combustion. The com-
bustion quality is checked by means
of a flue gas analysis device. Adjust
the burner to appr. 20% excess air in
accordance with the table. Check the
flue gas temperature. Calculate the
efficiency. Check also the actual gas
volume on the gas meter so that the
correct input is achieved.
SERVICE
Service should only be carried out by
qualified personnel. Replacement
parts should be of the same make
and approved by the same authoriti-
es as the original. If the burner is
converted to fire another gas quality it
must be re-commissioned. If town
gas is to be fired the combustion head
must be converted and the gas train
adjusted to suit (e.g.a larger gas ar-
mature or a different spring in the
governor may be required).
Gas quality
CO
2
%
0
2
%
max. CO
2
%
lambda 1,2
Natural gas
10,0
3,5
11,9
LPG
11,5
3,5
13,9
Summary of Contents for Bentone BG 450
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