Freeze-dryer Alpha 3-4 LSCbasic
5 Set-up and connection
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Version 11/2018, Rev. 1.9 of 01/12/2021
• sb
Translation of the original operating manuel
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5.3
Aeration valve
The aeration valve is located on top of the left side of the unit (see chapter
2.1.1 - "Functional and operating elements"). After the end of a freeze-
drying process, the unit will be aerated via the aeration valve.
NOTE
The aeration hose must be made of electrically conductive material to
prevent the accumulation of electrostatic charges.
NOTE
The ice condenser chamber can be flooded with nitrogen via the hose
nozzle of the aeration valve.
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5.4
Media drain valve
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 media drain valve is located at the bottom of the left side of the unit
(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.
NOTE
The aeration hose is made of electrically conductive material to prevent
the accumulation of electrostatic charges.
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