Atlas Copco Oil-Injected Rotary Screw Compressor GA7P

Is strainer cleaning necessary?

Refrigeration dryers of ID type contain refrigerant HFC. When handling refrigerant, all applicable safety precautions must be observed.

Contact of refrigerant with the skin will cause freezing. Special gloves must be worn. If contacted with the skin, the skin should be rinsed with water. On no account may clothing be removed.

Fluid refrigerant will also cause freezing of the eyes; always wear safety glasses.

Refrigerant is harmful. Do not inhale refrigerant vapours. Check that the working area is adequately ventilated.

Be aware that certain components such as the refrigerant compressor and the discharge pipe can become quite hot (up to 110 °C - 230 °F). Therefore, wait until the dryer has cooled down before removing the panels.

Before starting any maintenance or repair work, switch off the voltage and close the air inlet and outlet valves.

Did you follow all the safety precautions?

Sign here to confirm that you have followed all the safety precautions.

WARNING! No adjustments are allowed. Never run the compressor without safety valve. Before removing the valve, depressurise the compressor.

Valve (SV) opens at the set pressure

Valve (SV1) opens at the set pressure

Temperature shut-down function test

Sign off on the safety valve testing

Compressor stopped and voltage switched off?

Enter the force F needed to create a deflection of 5 mm (0.2 in)

Belt tension adjusted by turning nuts?

Sign off on the belt tension adjustment

Warning: Always stop the compressor, close the air outlet valve and switch off the voltage before starting the cleaning process.

Compressor stopped and air outlet valve closed?

Cover all parts under the coolers.

All parts under the coolers covered?

Remove any dirt from the coolers with a fibre brush. Never use a wire brush or metal objects.

Dirt removed from the coolers using a fibre brush?

Next, clean with an air jet in the reverse direction to normal flow. Use low pressure air. If necessary, the pressure may be increased up to 6 bar(e) (87 psig).

Coolers cleaned with an air jet in the reverse direction to normal flow?