SB-160-3
24
9
Decommissioning
9.1
Standstill
Supply the compressor with voltage even during a
standstill until it is dismounted in order to keep the oil
heater in operation. This prevents increased refrigerant
concentration in the oil.
If a longer standstill without voltage supply is planned:
Close the shut-off valves.
WARNING
Risk of refrigerant evaporation from the oil.
Increased risk of flammability, depending on the
refrigerant!
Shut-down compressors or used oil may still
contain rather high amounts of dissolved refri-
gerant.
Close the shut-off valves on the compressor
and extract the refrigerant!
9.2
Dismounting the compressor
DANGER
Life-threatening voltages inside the FI housing!
Contact can lead to serious injuries or death.
Never open the FI housing in operation!
Switch off the main switch and secure it against
being switched on again.
Wait for at least 5 minutes until all capacitors
have been discharged!
Before switching on again, close the FI housing.
• Disconnect the compressor from the voltage supply.
WARNING
The compressor is under pressure!
Serious injuries are possible.
Depressurize the compressor!
Wear safety goggles!
• Close the shut-off valves on the compressor.
• Extract the refrigerant. Do not deflate the refrigerant,
but dispose of it properly!
• Loosen screwed joints or flanges on the compressor
valves.
• Remove the compressor from the system; use hoist-
ing equipment if necessary, see chapter Transport-
ing the compressor, page 7.
9.3
Disposing of the compressor
Drain the oil from the compressor. Dispose of waste oil
properly! Have the compressor repaired or dispose of it
properly!
When returning compressors that have been operated
with flammable refrigerant, mark the compressor with
the symbol "Caution flammable gas", as the oil may still
contain refrigerant.
