Bitzer Refrigeration Liquid Receiver FS152

Open all shut-off valves and solenoid valves

Use a vacuum pump to evacuate the entire system, including the compressor, on the suction side and the high pressure side

Measure the standing vacuum achieved

Is the standing vacuum lower than 1.5 mbar?

Repeat the evacuation operation if necessary

Ensure the compressor is not started while in a vacuum

Ensure no voltage is applied to the compressor

Check for abnormal vibrations in the system, particularly the pipelines and capillary tubes

Take additional safety measures if abnormal vibrations are detected

Ensure pipes are connected to the pressure equipment without load and stress

Verify factory testing of pressure equipment

Test tightness of connections and pipe works

Test refrigerant circuit for tightness according to EN378-2 or equivalent standards

Enter the overpressure applied during the test

Was dry nitrogen used for creating overpressure?

Enter the maximum allowable pressure from the name plate

Calculate and enter the test pressure (1.1-fold of the maximum allowable pressure)

Ensure no components or pipes are completely charged with liquid refrigerant

Verify sufficient volume is left above the liquids

Confirm only permitted refrigerants are used

Measure out extremely precise quantities of refrigerant

Charge the condenser or receiver directly with liquid refrigerant

Ensure blends are taken out of the charging cylinder as a bubble-free liquid

If necessary, add refrigerant while the compressor is running, charging on the suction side, preferably at the evaporator inlet

Dispose of used oil in an environmentally friendly manner

Fill used oil into pressure resistant vessels

Fill vessels with nitrogen as a protective gas and close them

Mark vessels with the warning sign 'flammable substance' W021 from ISO7010