Bitzer Refrigeration Liquid Receiver FS252

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

Check if a 'standing vacuum' lower than 1.5 mbar is achieved with the vacuum pump shut off

Repeat the evacuation operation if necessary

Risk of damage to the motor and compressor: Do not start the compressor while it is in a vacuum! Do not apply any voltage, not even for testing!

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

Were additional safety measures required due to vibrations?

Ensure no strong vibrations are present to avoid risk of burst pipes and leakages.

Connect the pipes to the pressure equipment without load and stress to prevent mechanical stress.

4.7 Mounting included accessory

Fit the accessories best before commissioning.

Reference connection positions and tightening torques

Check pressure equipment for tightness after mounting.

Shut off all inlets and outlets of the pressure equipment.

Depressurise the pressure equipment.

Extract refrigerant, reuse it or dispose of it in an environmentally friendly manner.

Handling Flammable Refrigerants

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

Verify the following components for tightness

Enter the maximum allowable pressure from the name plate

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

Is the test pressure within the safe limits?

Test the refrigerant circuit for tightness using dry nitrogen

Record any observations or issues found during the test