DB-300-9 33
7.2 Extracting the refrigerant
• For repair work at the liquid receivers or when de-
commissioning them, extract or pump down the refri-
gerant as a liquid if possible.
• Dispose of the refrigerant properly.
7.3 Draining the oil
Before decommissioning the pressure equipment or
performing repair work, shut off the refrigerant pipes
and oil pipes before and behind the oil cooler. Keep a
pan ready. Drain oil, collect oil and dispose of it prop-
erly.
WARNING
The pressure equipment is under pressure!
Serious injuries are possible!
Depressurise the pressure equipment!
Wear safety goggles!
8 Decommissioning
In case of damage, the pressure vessel must be separ-
ated from the refrigerator system and replaced. For
this, extract the refrigerant and remove the oil.
Dispose of contaminated substances properly! Chlor-
ine-containing oil is hazardous waste.
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