Chapter 2: Prerequisites
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7
Original instructions
Do not use any detachable power cord that is not adequately
rated for the unit.
Frequency must agree with the serial tag rating.
Improper frequency will damage the compressor.
ADDITIONAL APPLIANCES ON THE SAME CIRCUIT MAY
CAUSE THE CURRENT TO EXCEED THE RATING OF THE
CIRCUIT BREAKER OR FUSE.
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. The refrigeration
system draws air through the side panels and exhausts it through the back panel. A
minimum of 3" must be allowed between the back and both sides of the Freeze
Dryer and adjacent wall surfaces. Restriction of airflow during operation could
adversely affect performance.
Refer to
Appendix B: Freeze Dryer Dimensions
for dimensional drawings of the
Freeze Dryer.
Vacuum Pump Requirements
A vacuum pump must be provided by the user. A vacuum pump with a
displacement of 98 liters per minute and 0.007 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. 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. The higher
the vacuum set point, the more likely it is that oil mist will be exhausted.
Vacuum pumps used with 115V models should be equipped with a 115V, 15 Amp
NEMA 5-15P plug. Vacuum pumps used with 230V models should be equipped
with a reverse IEC plug (included with 230V pumps purchased from Labconco).
This will allow the vacuum pump to be plugged into the receptacle on electrical
box located within the Freeze Dryer cabinet.
Chamber or Manifold Requirements
A freeze drying chamber or manifold is not included and must be purchased
separately. These accessories allow samples to be attached to the Freeze Dryer.
See
Chapter 3: Getting Started
for installation instruction.
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