Labconco FreeZone Clear Stoppering Chambers - Manual (Page 12)

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Chapter 2: Prerequisites
Product Service: Domestic 1-800-522-7658, International 816-333-8811
Location Requirements
The Freeze Dryer should be located in an area that provides an
unobstructed flow of air around the cabinet. This air cools the
refrigeration system. A minimum of 3" must be allowed between
the rear and both sides of the Freeze Dryer and adjacent wall
surfaces. Restriction of airflow during operation could adversely
affect performance.
Refer to Appendix B: Clear Stoppering Chamber Dimensions for
dimensional drawings of the Clear Stoppering Chamber.
Vacuum Pump Requirements
A vacuum pump must be provided by the user. A vacuum pump
with a displacement of 144 liters per minute and 0.0002 mBar
ultimate pressure is adequate for most samples. The inlet fitting on
the vacuum pump must be suitable for 3/4" ID vacuum hose,
which is provided with the FreeZone Freeze Dry System. It is
recommended that the vacuum pump is equipped with an exhaust
filter to minimize oil mist exhausting from the vacuum pump. The
operating vacuum level may be set on the freeze dryer system.
The higher the pressure is set, the more likely it is that oil mist will
be exhausted.
Vacuum pumps used with 115V models should be equipped with
an 115V, 15 Amp NEMA 5-15P plug. Vacuum pumps used with
230V models should be equipped with a reverse IEC plug. This
plug is included with 230V FreeZone Freeze Dry Systems. This
will allow the vacuum pump to be plugged into the receptacle on
the back panel of the Freeze Dry System. Refer to the User’s
Manual for the FreeZone Freeze Dry System for vacuum pumps
available from Labconco.