Operation
2.6 Switching Off/
Shutdown
Under normal circumstances, all that you need do is to
electrically switch off the TRIVAC B. No further measures
will be required.
When pumping condensable media let the
pump continue to operate with the gas
ballast valve open and the intake line closed
before switching off (see Section 2.5.2).
When pumping aggressive or corrosive
media, let the pump continue to operate
even during long non-working intervals (e.g.
overnight) with the intake line closed and
the gas ballast valve open. This avoids
corrosion during idle periods.
If the TRIVAC B is to be shutdown for an extended period
after pumping aggressive or corrosive media or if the
pump has to be stored, proceed as follows:
When pumping harmful substances, take
adequate safety precautions.
Our technical sales department is available
for further advice in these matters.
Drain the oil (see Section 3.2).
Add clean oil until the oil-level is at the “min” mark (see
Section 3.2) and let the pump operate for some time.
Then drain the oil and add clean oil until the oil level is at
the “max.” mark (see Section 3.2).
Seal the connection ports. Special conservation or anti-
corrosion oils aren’t necessary.
Please also take note of the information
given in Section 3.9 (storage and storage
conditions).
2.6.1 Shut-Down through Monitoring
Components
When the pump has been switched off due
to overheating sensed by the motor coil
protector, the pump must only be started
manually after the pump has cooled down
to the ambient temperature and after having
removed the cause first.
2.6.2 Failure of the Control System or the
Mains Power
In order to prevent the pump from running
up unexpectedly after a mains power
failure, the pump must be integrated in the
control system in such a way that the pump
can only be switched on again manually.
This applies equally to emergency cut-out
arrangements.
14
Caution
Warning
Caution
Warning
Warning
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