Freeze-dryer Epsilon 2-6D LSCplus
5 Set-up and connection
Version 07/2022, Rev. 3.0 of 20/07/2022
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Translation of the original operating manual
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5.2.2
Aeration
DANGER
Risk of injury caused by bursting of the chamber
The double chamber is designed for vacuum. It is not a pressure vessel!
In the event of a malfunction, an impermissible excess pressure may build
up in the chamber, which may cause the chamber to burst.
This may lead to life-threatening injuries.
• Do not use the freeze-dryer when it is pressurised (excess pressure)!
• We strongly recommend installing a pressure relief device (e.g. a
safety valve or rupture disc) with a sufficient rating.
The freeze-dryer is equipped with one aeration valve (see chapter 2.1.1 -
"Functional and operating elements").
After the freeze-drying process, the aeration valve is used for aerating the
chambers to atmospheric pressure so that the loading door can be opened
in order to remove the product.
Usually, the ambient air is used for the aeration. However, the chamber can
also be aerated with an inertisation medium (e.g. nitrogen) via the hose
connector of the aeration valve.
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5.2.3
Drain
WARNING
Risk of poisoning/infection caused by contaminated condensate
(defrosting water)
The condensate may contain harmful substances originating from the
product.
Contact with the condensate may cause severe damage to health.
• Ensure the environmentally sound disposal of the condensate in
compliance with the local rules and regulations!
The freeze-dryer is equipped with one media drain valve (see chapter 2.1.1
- "Functional and operating elements").
It is used to drain off the condensate and the defrosting water.
• Connect the drain hose (included in the scope of supply) to the hose
connector.
• Place a collecting vessel under the unit.
The hose must be laid with a continuous slope and the end of the hose
must always be above the liquid level in the collecting vessel. This prevents
water and dirt residues from being sucked into the ice condenser chamber
if there is negative pressure when the media drain valve is opened.
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