Installation
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GA03108_002_C1 - 04/2018 - © Leybold
Its direction of rotation is independent of the pump and doesn’t change when
you interchange the phases.
Connecting the fan to the terminals for the motor is not allowed. The fan
should be connected via a separate cable to 230 V, 50/60 Hz or 265 V/60
Hz. A voltage of 265 V/60 Hz must not be exceeded.
When operating the pumps in short cycles (WSU...H with ACE vibration
absorbers) the fan needs to be connected separately so that it will be running
constantly. The fan itself should not be switched on and off in short cycles.
The RUVAC can be automatically switched on and off via a contactor using a
pressure switch and the contact amplifier SV 110.
The pressure switch PS 115 is set by Leybold to a fixed value. Upon ordering
the pressure switch please state the desired switch-on pressure.
After removing a screw plug, the pressure switch (3.1/8) together with an
adapter (3.1/11) and a right-angle bend (3.1/10) can be mounted on the bore
(3.1/6).
When doing so, ensure proper sealing and air-tight installation.
It is advisable to mount the switch vertically to reduce the entry of contami-
nants.
NOTICE
