V/D
S
ERIES
M
ECHANICAL ASSEMBLIES
3-54 Revision: 2.1
When using a separate cooling water circuit, set the
SaveWaterTemp parameter to the minimum value!
When using a separate cooling water circuit, the cooling water
supply and return flow have their own connections. In this case,
the water saving function is not needed and must be switched
off (by setting parameter 40 (SaveWaterTemp) to 10 °C).
Water cooling without support air
After the sterilisation phase has ended, the steam is released in a
controlled fashion until the atmospheric conditions are reached. The speed
of the steam release is controlled via parameter 16 (ExShootOn) and
parameter 17 (ExShootOff) (see chapter 8, “Parameters”).
When a temperature of 101 °C and a pressure of approx. 100 kPa is
reached, the cooling coil in the sterilisation chamber is flooded with cooling
water and the sterilisation chamber is flushed with sterile, filtered air
through the vacuum breaker until the unloading temperature has been
reached.
The water cooling function is detailed under “Water cooling with support
air”.
Cooling through recirculation
Cooling purely through recirculation is an option when no water connection
is available. The cooling water is then taken from and returned to a
separate canister.
The function here is similar to water cooling without support air. However,
a pump is required to circulate the water.
Ambient air cooling
Ambient air cooling is installed on all devices without cooling options,
including VB series and DB series devices.
After the sterilisation phase has ended, the steam is released in a
controlled fashion until the atmospheric conditions are reached. The speed
of the steam release is controlled via parameter 16 (ExShootOn) and
parameter 17 (ExShootOff) (see chapter 8, “Parameters”).
When a pressure of approx. 115 kPa has been reached, the chamber is
cooled with ambient air via a fan installed at the bottom of the equipment
frame. This will cause a vacuum in the sterilisation chamber (the vacuum
breaker is not open during this process). When the unloading temperature
has been reached, the sterilisation chamber is flushed with sterile, filtered
air and the atmospheric conditions are established.
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