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Servicing the
Refrigeration System
Thermo Scientific
Service
Section 4
Service must be performed by experienced refrigeration service personnel
only.
s
If the unit malfunctions, check all electrical components on the
compressor first:
•
Starting relays
•
Thermal protectors
•
Starting capacitors
After checking the electrical components, check the refrigeration system.
EPA regulations require that refrigerant, evacuated from the refrigeration
system, must be recovered using an EPA approved recovery unit (USA).
Electrical and Refrigeration schematics are included in this manual.
s
Blast Freezer
4-1
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