Inlet Screen Installation; Heating Jacket Installation - Varian Turbo-V 2000 ICE Mode D'emploi

INLET SCREEN INSTALLATION

The inlet screens prevents the blades of the pump
from being damaged by debris greater than 3 mm
diameter. The inlet screen, however, will reduce
the pumping speed by about 20%.
The inlet screen is fitted in the upper part of the
pump, as shown in the figure and can be mounted
on each pump model.
To remove the inlet screen use the suitable tool as
shown in the following figure.
The following figure shows the pump flange sec-
tions with the protection screen fitted on them. As
you can see, the overall dimensions do not change
as the inlet screen remains inside the pump pro-
file.

HEATING JACKET INSTALLATION

The heating jacket can be used to heat the pump
casing when a condensable process by-products
are present. There are two models of heating
jacket which differ for the supply power: model
969-9820 for a supply power of 220 Vac, and
model 969-9821 for a supply power of 120 Vac.
The heating jacket voltage must be in accordance
with the pump controller voltage: use the model
969-9820 with a 220 Vac power supplied controller
(mod. 969-9448), and the model 969-9821 with a
120 Vac power supplied controller (mod. 969-9449).
The use of a wrong supply voltage heating jacket
model may cause a serious damage to both heat-
ing jacket and controller.
It is applied to the lower part of the pump casing, as
shown in the figure, and heats it to a temperature
between 50° and 90° C under controller selection.
The heating jacket must be mounted such that
there is perfect thermal contact with the pump wall
to obtain fast and efficient heating.
Once the heating jacket is installed and con-
nected, set the controller to operate it at the de-
sired temperature by means of the configuration
menu (refer to the controller manual for details).
The heater jacket will be started by pressing the
pump start button.
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TECHNICAL INFORMATION
CAUTION
87-900-915-01(E)