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HEATING JACKET INSTALLATION
The heating jacket model 969-9819 can be used to
heat the pump casing when a condensable proc-
ess by-products are present.
It is applied on the lower part of the pump casing
with the provided set of springs, as shown in the fig-
ure, to heat the envelope to a temperature between
40f and 90f C under controller selection.
The jacket must be mounted in order to have a
perfect thermal contact between the heating sur-
face and the pump envelope to obtain a fast and
efficient heating.
When the jacket is correctly mounted around the
envelope, the hooks of the springs go outside the
band and the springs result a bit stretched.
Once the heating jacket is installed and connected,
set the controller to operate it at the desired tempera-
ture by means of the configuration menu (refer to the
controller manual for details). The heating jacket will
be started by pressing the pump start button.
A dedicated temperature sensor into the heating
jacket will keep the pump temperature at the de-
sired temperature.
NOTE
Please make sure to have a perfect contact be-
tween the heating jacket thermistor and the pump
envelope for a safe and efficient operation.
! ! ! !
If the chamber of the system is "baked" at a high
temperature, a shield should be installed to prevent
thermal radiation heating the high vacuum flange
on the pump.
CAUTION
WATER COOLING KIT INSTALLATION
Two types of water cooling kits are available to be
mounted when the pump is used under heavy load
conditions or when air cooling is insufficient.
The two model part numbers are: 969-9338 (metal-
lic model), and 969-9348 (plastic model).
Model 969-9338
Model 969-9348
The items of the plastic model kit must be assem-
bled as shown in the following figure
The assembled kit must be screwed into the suit-
able holes of the pump body with a recommended
closing torque of 5 Nm.
29
TECHNICAL INFORMATION
! ! ! !
CAUTION
87-900-942-01(A)
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