
20
Installation instructions
The manufacturing companies of the burners can supply the
dimensions of the flames which their appliances develop,
especially those approved based on the standards indicated
above.
Further information is provided in the chapter “Commissioning”.
BOILER TYPE
øA
mm
L
mm
fig. 21
TST 2000÷2350 2S
380
350
TST 1400÷1650 2S
320
320
TST 1000÷1180 2S
320
300
TST 680÷870 2S
270
270
TST 300÷560 2S
220
250
TST 80 2S
130
150
DIMENSIONS OF BURNER BLAST TUBE
TST 2700 2S
380
400
TST 3100÷3500 2S
400
400
3.6 - CONNECTING FLAME CONTROL
WARNING LIGHT TO BURNER
The flame control warning light is provided with a 1/8" threaded
connection (pos. 1) upon which a 9 mm pressure test nipple
is mounted. It can be used with a silicon tube to measure the
counter pressure in the combustion chamber.
In place of this test nipple, which must be kept, an appropriate
fitting will be mounted to connect the flame control warning light
directly to the pressure chamber downstream the burner fan by
means of a copper tube.
The air blown by the fan will conveniently cool the warning light
glass and keep it from blackening.
If the cooling tube is not connected to the warning light, it could
break.
ATTENTION: the flame control warning light can be very
hot; therefore pay the utmost attention.
fig. 22
3.5.2 - INSTALLING THE BURNER
Before assembling the burner it is necessary to check the position
of the turbulators inside the pipes: each tube must be provided
with its own turbulator and this must be positioned as shown in
the table at page 8.
The burner must be mounted to the door of the boiler
guaranteeing perfect sealing of the combustion products.
The burner is supplied with
a piece of ceramic fibre cord which
must be placed on the blast tube of the burner to fully seal
the space between the blast tube and the slot in the door
.
Make sure that no gaps remain between the blast tube and the
slot on the refractory material inside the door.
Should a cone larger than the diameter of the blast tube be
mounted, it must be removed before mounting the burner on
the support plate and put back afterwards.
With the burner mounted, check that the flexible hoses of the
liquid fuel and the electric cables are long enough to allow the
door to open 90°.
For gas-fired burners, flexible hoses cannot be used for
connections. Therefore it must be equipped with a threaded
or flanged joint for disconnecting the final section of the gas
adduction tube.
2
1
L
Ø
A
TST 3900÷5200 2S
500
520
TST 5700÷6100 2S
500
630
TST 120÷250 2S
180
170