Working On Refrigerant Circuit

In some countries, other qualifications are required when opening the refrigerant circuit.

Only use approved tools when working on the refrigerant circuit.

Further information

• Additional information on vehicles with A/C and handling refrigerant. Refer to Safety Precautions or SAFETY PRECAUTIONS WHEN WORKING ON A/C SYSTEM AND WHEN HANDLING REFRIGERANT R134A .
• For information regarding work on vehicles with A/C using the A/C Service Station, refer to Working with A/C Service Station or Working with A/C Service Station .
• Condition and procedure for flushing with refrigerant R1234yf. Refer to REFRIGERANT CIRCUIT, CLEANING or REFRIGERANT CIRCUIT, REMOVING CONTAMINANTS .
• Information for testing equipment and special tools when repairing vehicles with A/C can be found in ELSA. Refer to Refrigerant R1234yf Servicing or TOOLS AND TESTING EQUIPMENT .
• For A/C systems with refrigerant R1234yf, the desiccant bag/dryer cartridge must be replaced each time the refrigerant circuit is opened. Refer to COMPONENTS, REPLACING .
• Under certain conditions, the desiccant bag no longer needs to be replaced each time the refrigerant circuit is opened on A/C systems with refrigerant R134a. Refer to COMPONENTS, REPLACING .