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300267596_002_C0 - 11/2016 - © Leybold
3
Installation
It is essential to observe the following instructions step by step to ensure safe
start-up. Start-up may only be conducted by trained specialists.
The standard pump is not suitable for installation in explosion hazard areas
ATEX. Please contact us, if you are planning such an application. Before
installing the pump you must reliably disconnect it from the electrical power
supply and prevent the pump from running up inadvertently.
Observe all safety regulations.
3.1 Setting up
The pump must be set up or mounted horizontally on a flat surface. Special
mounting is not required. For indoor use only up to 1000 m altitude.
The following ambient operating environment must be observed:
■
Ambient temperature: 12 °C to 40 °C (54 °F to 104 °F),
■
Rel. humidity (without condensation)
≤
95 %
■
Ambient pressure = Atmospheric pressure.
In order to avoid over-heating of the pump, an undisturbed fresh airflow to
the pump is necessary.
The pump must be kept clean (no dust deposit)
3.2 Connection to system
Inlet connection
See safety instructions page 3.
■
The inlet flange can be connected with a vacuum-tight flexible hose
and/or pipe. The pipes should cause no stresses on the pump’s flanges. If
necessary, compensators must be installed.
■
Restriction of the pipes must be avoided in order not to decrease the
pumping speed of the pump. The nominal diameter of the pipes has to be at
least the same as the diameter of pump’s inlet flange.
■
When removing condensable vapours, a gas ballast valve must
be installed.
■
Inlet pressure must not exceed atmospheric pressure.
Connection to exhaust side
■
No isolation or restricting devices should be installed in the exhaust line
of the pump. If an exhaust line is installed, it must at least have the same
diameter as the exhaust flange. It should be installed in a manner so that no
condensate can enter the pump (siphon, slope).
The maximum exhaust pressure must neither exceed 1.15 bar absolute (0.15
bar relative), nor fall under atmosphere pressure minus 15 mbar.
Pump exhaust to be connected if oil mist or process gases are to be avoided
in the pump area.
Corresponding pressure regulating devices to be installed by the user.
Warning
Caution
Warning
Installation
