Owner manual

Chapter 2: Prerequisites

Product Service 1-800-522-7658

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 in through the front and exhausts it through the

rear. 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: Stoppering Tray Dryer Dimensions for dimensional

drawings of the Stoppering Tray Dryer.

Vacuum Pump Requirements

A vacuum pump must be provided by the user. A vacuum pump with a

displacement of 144 liters per minute and 0.002 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 Dry 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 models. 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.