10 / 20
0006081525_201112
N° 0
00
29
11
09
0
878
0.
tif
ENGLISH
1) Manual shut-off valve
2) Anti-vibration joint
3) Gas filter
4) Minimum gas pressure switch
5) Safety solenoid valve
6) Pressure regulator
7) Valve seal control device (mandatory for burner with maximum
rated heating capacity over 1200 kW)
BASIC DIAGRAM OF BURNER SUPPLY LINE
8) Slow opening main valve
9) Air/gas adjustment servomotor
10) Air adjustment gate
11) Air pressure switch
12) Combustion head
13) Gas adjustment butterfly valve
GAS TRAIN SUPPLIED BY THE MANUFACTURER
TO BE SUPPLIED BY THE INSTALLER
GENERAL DIAGRAM FOR THE INSTALLATION OF GATE-FILTER-
STABILISER-ANTI-VIBRATION JOINT-OPENABLE PIPE FITTING
GAS SUPPLY LINE
The gas supply diagram is shown in the figure at the side. The gas
train is certified in accordance with Standard EN 676 and is supplied
separately from the burner.
A manual shut-off valve and an anti-vibration joint must be installed
as indicated in the diagram.
If the gas train has a pressure regulator not incorporated in a
monoblock valve, we recommend you following this practical
advice on the installation of accessories on the gas piping close
to the burner:
1) To prevent large pressure drops on ignition it is best if there
is a piping 1.5 to 2 m long between the point of application
of the stabiliser or pressure reducer and the burner.
This pipe must have a diameter equal to or greater than the
connector to the burner.
2) For better pressure regulator operation it is advisable to attach it
to a horizontal piping after the filter. The gas pressure regulator
must be adjusted while working at the maximum capacity actually
used by the burner. The output pressure must be adjusted to
a level slightly below the maximum obtainable pressure.
(the pressure obtained when the regulation screw is turned
almost to its end). In the specific case, when the regulation
screw is tightened, the output pressure from the regulator
increases and when it is loosened it decreases.
VIEW FROM
ABOVE
BOILER
DOOR
BURNER
DOOR OPENING
DIRECTION
PIPE FITTING
ANTI-VIBRATION JOINT
SIDE VIEW
GATE
FILTER STABILISER OR REDUCER
Summary of Contents for BGN 250 P
Page 2: ......
Page 57: ...57 60 0006081525_201112 SCHEMA ELETTRICO...
Page 58: ...58 60 0006081525_201112...
