elco N6.2400 G-R, Руководство по эксплуатации

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10/2010 - Art. Nr. 4200 1030 6900A 17
en
Gas valves and instruments groups
Basic construction
100 Burner
101 Impulse pipe gas pressure
120 Air flap
141 Ball valve
142 Gas filter
150 Gas control butterfly
151 Gas double valve (Siemens system illustrated)
155 Ignition unit
313 Min. gas pressure switch 314 Gas pressure switch for valve leak check or valve leak
checker
349 Actuator
Options in accordance with country-specific requirements:
143 Pressure gauge with pushbutton valve
147 Test burner with pushbutton valve
148 Compensator
154 Gas safety valve (additional)
313a Max. gas pressure switch
The burner's scope of delivery may
include a gas train. In this case, the
burner and the gas train are issued with
a CE Declaration of Conformity. If the
gas train is not delivered with the burner,
the conformity of the burner is valid only
if the gas fittings and instruments and
the design of the gas train satisfy the
burner test specified by EN 676 and
meet the Pressure Equipment Directive.
Individual testing will be necessary
where this is not the case.
The gas train delivered has its own
documentation including operating
instructions and a spare parts list. There
follows a general description of the gas
train. Gas trains with a double valve are
intended for the supply, main shut-off,
gas filtration, gas pressure regulation
and monitoring of the gas supply. They
are compatible for use with gases
conforming to the specifications of the
gas fittings and instruments. They are
built in accordance with EN 676. All
function parts have been individually
tested and awarded the CE marking and
number of the Notified Body. The
preassembled gas train is checked for
leaks in the factory. Low- and high-pressure gas trains
If the outlet side of the regulator, i.e.
individual fittings and instruments
downstream of the gas pressure
regulator, has not been designed to be
compatible with the maximum supply
pressure that occurs in the event of a
fault, the gas train must be equipped
with a safety shut-off valve (SSV) and a
safety relief valve (SRV) in accordance
with EN 676. This equipment is
generally required for maximum supply
pressures of >360 mbar and > 500 mbar
respectively. These are known as
highpressure gas trains.
If all fittings and instruments of the gas
train have been designed/approved for
the maximum supply pressure that
occurs in the event of a fault, the gas
train is known as a low-pressure gas
train. This is the case, depending on
component selection, for maximum
supply pressures of 360 and 500 mbar.