V/D
S
ERIES
M
ECHANICAL ASSEMBLIES
3-58 Revision: 2.1
The pressure reducer for the cooling water should be set to
1 bar +/- 0.2 bar.
On devices with vacuum pumps, the pressure reducer
must not be set to a value greater than 1.2 bar!
This pressure is applied to the vacuum pump. If necessary,
check the setting of the pressure reducer with a manometer and
always control the flow of cooling water solely via the needle
valve (N2).
3.8 Steam generation
There are two ways of generating steam:
1. Using the installed steam generator (on X devices)
2. Directly in the sterilisation chamber (on E and B devices)
3.8.1 Steam generator (X devices)
Position and function
The installed pressure generator provides steam when the device is
switched on. The pressure in the steam generator can be read from the
display on the control panel, for example, “G210” ≙ 210 kPa (see
operating manual, chapter 4, “Operation”).
After the device is switched on, the level of demineralised water in the
steam generator is detected using the electrodes. As long as the high
electrode (E1) does not detect water, the water feed pump is switched on
together with the demineralised water inlet valve (Y14).
The steam generator is filled with demineralised water, and the heating
can be operated as soon as the low electrode (E2) detects water.
When the demineralised water level reaches the high electrode (E1), the
water feed pump is switched off together with the demineralised water inlet
valve (Y14).
The steam generator is now ready for operation.
Demineralised water inlet valve (Y14)
The demineralised water inlet valve (Y14) is switched in parallel to an
optional water feed pump, and regulates the intake of demineralised water
in the steam generator.
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