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• Pumping at high inlet pressure may lead to overpres-
sure at the gas ballast valve. Pumped gases or con-
densate might be expelled if the valve is open. If an in-
ert gas supply is connected to the gas ballast, ensure
that its inlet pipeline is not contaminated.
• You must take suitable precautions to prevent any
dangerous situation from arising if the controller starts
the VARIO pump, switches a coolant valve or opens a
venting valve.
•
Attention
: If the controller is set to
Autostart
, the pro-
cess will start immediately when switching on the de-
vice or in case of power recurrence after a power fail-
ure.
It is your responsibility to ensure that automatic start-up
of the system will not lead to any dangerous condition.
Provide appropriate safety measures. Check
prior to
starting the process
whether the option ”
Autostart
”
(menu: Settings\Basic Settings) is enabled.
•
Pay attention to the safety symbol ”hot surfaces” on
the equipment. Depending on operation conditions and
ambient conditions dangers due to hot surfaces may
arise. Hot parts may cause burns if touched. Adopt
suitable measures to prevent any danger arising from
hot surfaces. Ensure that hot surfaces of the pump do
not cause burns. Provide a suitable contact guard if
necessary.
Prevent the backpressure of gases and the backflow of
condensates at the outlet.
Provide appropriate protective measures to allow for the
possibility of failure and
malfunction
. The protective mea-
sures must also allow for the requirements of the respec-
tive application.
In case of overload, the motor is shut down by a
self-hold
thermal cutout
in the winding.
Note
: Only manual reset is possible. Acknowledge the er-