Freeze-dryer Alpha 3-4 LSCbasic
5 Set-up and connection
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Version 11/2018, Rev. 1.2 of 05/03/2019
• sb-pe
Translation of the original operating manuel
5.2
Power supply
5.2.1
Connection
DANGER
The operating voltage on the name plate must correspond to the local
supply voltage
Christ freeze-dryers are units of protection class I. The freeze-dryers of the
type Alpha 3-4 LSCbasic have a three-wire power cord with an IEC C13
connector (see chapter 10 - "Technical data").
An equipotential bonding screw is located on the back below the mains
power input (see chapter 2.1.1 - "Functional and operating elements"). This
equipotential bonding screw can be used to perform an earth conductor
check.
5.2.2
Customer-provided fuses
Typically, the freeze-dryer must be protected with 16 Amp G fuses that are
to be provided by the customer.
5.3
Aeration valve
The aeration valve is located on top of the left side of the unit (see chapter
2.1.1 - "Functional and operating elements").
After the end of a freeze-drying process, the unit will be aerated via the
aeration valve.
NOTE
The ice condenser chamber can be flooded with nitrogen via the hose
nozzle of the aeration valve.
