22 300598802_002_C0 - 10/2016 - © Leybold
Operation
CAUTION
CAUTION
WARNING
CAUTION
4.3.3 Operating Temperature
Proper operation of the TRIVAC
®
T is ensured in the ambient temperature
range between 12 °C to 45 °C (55 °F to 113 °F).
At operating temperature, the surface temperature of the TRIVAC
®
T may lie
over 70 °C (156 °F).
Beware of hot surfaces
There is the danger of receiving burns.
Observe Safety Information 0.3.
If - due to the ambient conditions - this temperature range is exceeded at ei-
ther end of the range, contact Leybold Sales.
The motor may accelerate with a delay when simultaneously an under voltage
is present at the motor and the pump is at the minimum permissible and ambi-
ent temperature.
Under such operating conditions the motor protection switch may respond.
In this case the motor may be started again.
4.4 Shutdown
Since the TRIVAC
®
T pump will commonly be exposed to aggressive and cor-
rosive media, we recommend that you 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 and
difficulties when re-starting the pump under conditions where the lubricant has
been chemically modified.
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 Chapter 4.3.2).
If the TRIVAC
®
T running with mineral oil 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:
Pump and operating agents may be contaminated
If hazardous substances have been pumped, then these substances can
escape from the pump and from the oil. Introduce adequate safety pre-
cautions; use gloves, face protection or a respirator, for example.
Observe Safety Information 0.4.
Drain the oil (see Chapter 5.4).
Add clean oil until the oil-level is at the “min” mark 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.
Seal the connection ports. Special conservation or anti-corrosion oils aren’t
necessary.
Please also take note of the information given in Section 2 Transport and Stor-
ing.
4.4.1 Controller/Mains Power Failure
In order to prevent the pump from running up unexpectedly after a mains pow-
er 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.
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