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HEATING JACKET INSTALLATION
The heating jacket model 969-9818 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, and heats it to a temperature between 40° and
90° C under controller selection.
The heating jacket must be mounted in order to
have a perfect thermal contact between the heat-
ing surface and the pump envelope to obtain a fast
and efficient heating.
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.
! ! ! !
CAUTION
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. The maximum temperature allowed
for the inlet flange is 120° C.
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: 969-9337 (metal-
lic model), and 969-9347 (plastic model).
Model 969-9337
Model 969-9347
! ! ! !
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
87-900-897-01(C)
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