GEA T.VIS E-20, Инструкция по эксплуатации

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Y3 Air connection for lifting the double-disk or for the main stroke of an
external process valve
23 Plug
Control air pressure can be present at the plugs for the air
connections!
Before removing a sealing plug (23), make sure that the respective
air connection is pressure-free!
On most of the GEA Tuchenhagen valve types, solenoid valve Y1 internally
guides the main control air through the switch bar into the main actuator. The
external air connection Y1 is provided in addition.
Hint!
To ensure adequate compressed air supply to the process actuators, a
max. of 2 solenoid valves are electrically activated at the same time!
It must be ensured that there can be no simultaneous control of the
actuator or the lifts at the same process valve!
6.4 Electrical connections
Danger
To satisfy the UL requirements, use a protective insulation power-limited
power supply according to UL/IEC 60950 or power limited according to
UL/IEC 61010-1 3cd cl. 9.4 or a Class II power supply according to NEC.
► Always follow the instructions for commissioning and maintenance when
working in potentially explosive atmospheres.
Electrical installations and installation in potentially explosive
atmospheres
► The standards for electrical installations and installation in accordance
with EN 60079-11 and EN 60079-14 must be observed.
Assembly and installation
Electrical connections
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