20151674
20
GB
Installation
5.8
Fuel supply
The burners are teamed with one-piece pneumatic proportioning
gas valves, via which the amount of gas delivered, and hence the
output produced, can be modulated.
A signal reporting pressure detected in the air circuit is carried to
the pneumatic gas valve, which delivers an amount of gas in pro-
portion to the airflow produced by the fan.
To optimise the bulk, the gas train is assembled directly on the
body of the burner.
Air/gas mixer Fig. 13
Gas and combustive air are mixed inside the purging circuit (mix-
er), starting from the intake inlet.
Through the gas train, fuel is introduced into the intake air current
and optimal mixing commences with the aid of a mixer.
Gas valve
Tab. L
Explosion danger due to fuel leaks in the pres-
ence of a flammable source.
Precautions: avoid knocking, attrition, sparks and
heat.
Make sure the fuel interception tap is closed be-
fore performing any operation on the burner.
WARNING
The fuel supply line must be installed by qualified
personnel, in compliance with current standards
and laws.
DANGER
Disconnect the electrical power using the main
switch.
Check that there are no gas leaks.
Pay attention when handling the train: danger of
crushing of limbs.
Make sure that the gas train is properly installed
by checking for any fuel leaks.
WARNING
Refer to the accompanying instructions for the ad-
justment of the gas train.
The operator must use the required equipment
during installation.
Valve model
Honeywell VR4615VB1006 B
Mixer model
Honeywell 45900450-0301 B
Gas line connection
3/4” input
Working temperature
-15°C/70°C
Max. working pressure
30 mbar
Min. working pressure
15 mbar
Max. inlet pressure
60 mbar
Valve class
B + C
Electrical supply
220-240 V
Protection level
IP 40 according to IEC 529
Summary of Contents for RX 150 S/PV
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