Specifications

Operating Manual Freeze Dryer ALPHA 1-4 LD-2 / 2-4 LD-2, Version 0203, Page 13
2 Installation and Commissioning of the Unit
2.1 Site of Installation
WARNING! Papers, cloths or similar items must not be put behind the unit as the air
circulation of the heat exchanger will not work any more.
The freeze dryer should be positioned horizontally. The ambient temperature should be
within approx. +15°C and +25°C.
The refrigerator of the freeze dryer is air-cooled. Sufficient air circulation must be
ensured. A distance of at least 30 cm to the wall should be kept. The unit should not be
positioned near radiators or heat sources and direct insolation must be avoided.
In the event of insufficient air circulation or a too high ambient temperature pressure
and temperature in the refrigerating system will increase.
The following connections are necessary at the site:
2.2 Mains Electricity
The voltage given on the name-plate must correspond to the local supply voltage.
CHRIST freeze dryers are units of safety class I and include a three-conductor
connection cable and a shockproof plug.
2.3 Fuses on Site
The freeze dryer must be protected typically with a 16 A fuse.
2.4 Checking the Earth Connection
For checking the earth connection there is a screw for equalising the ground potential
on the back panel of the freeze dryer. The check can be carried out by means of an
appropriate measuring device.