Martin Christ Epsilon 2-6D LSCplus - Manual (Page 39)

Freeze-dryer EPSILON 2-6 LSCplus
5 Set-up and connection
Version 10/2012, Rev. 1.6 of 16/12/2014 • sb
39
Translation of the original operating manual
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5.7 Media drain valve
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.
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5.8 Special equipment: Precision control needle valve for air injection
In addition to the aeration valve, a precision control needle valve is also
installed (position ). The precision control needle valve is used to pre-adjust
the volume flow. If the actual value is below the preselected vacuum value,
this valve will open briefly, thereby ensuring a constant vacuum in the
freeze-dryer.
NOTE
The precision control needle valve is pre-adjusted at the factory. Usually, it
does not require any readjustment.
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5.9 Vacuum pump
NOTE
Please refer to the separate operating manual of the vacuum pump and
the exhaust filter!
The vacuum pump must be connected to the vacuum connector of the unit.
The electrical connection is located inside the housing next to the vacuum
pump.
The oil mist that escapes when the pump is in operation must be retained
or carried off by way of an oil mist separator.
• We strongly recommend using an oil mist separator. This filter prevents
air pollution by oil mist.
• In order to carry off the oil mist, connect a suitable hose to the exhaust
port of the vacuum pump (RZ-2.5 and RC-6: ½", DUO 5 or DUO 10 ¾").
• The hose must be laid so that the condensate cannot flow back into the
pump. In the case of upward leading hoses, we recommend using a
separator (Woulfe's bottle or wash bottle).
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