Valeo Garage Equipment 2016-2017 955661 English

Lubrication and 1.2 Leak Detection

AIR CONDITIONING

> FUNCTION The A/C loop’s performance and longevity depends on the refrigerant oil as: • It helps cooling down the compressor and removing impurities from the system • It also keeps the A/C loop sealed by reinforcing each component’s • It prevents damages to the compressor by lubricating moving parts Each oil is specific to the compressor type and car application Refrigerant oil

> REPLACEMENT Refrigerant oil has to be reinjected every time there is a maintenance or repair operation on the A/C loop. Below are some typical problems due to refrigerant oil: • Use of inappropriate type of refrigerant oil • Lack / excess of refrigerant oil Internal corrosion due to the presence of humidity in the A/C loop • A/C loop blocked (filter drier and expansion valve blocked)

> RECOMMENDATIONS • Choose the compatible refrigerant oil (type, quantity and viscosity) with the compressor type, refrigerant fluid and car application: • Never expose refrigerant oil to ambient air • It is essential to add oil when: > Refilling the A/C loop with refrigerant 10 ml > Replacing the condenser - 20 ml > Replacing the compressor - check quantity in catalogue > Replacing the receiver drier and hoses 15 ml > Replacing the accumulator - 50 ml > Replacing the evaporator - 30 ml • Appropriate protection should be worn: working clothes, safety gloves and goggles

Find at www.valeo-techassist.com a cross list with compressor section and refrigerant data listed by car manufacturer

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