Technician a states that to determine how much refrigerant is needed in a system, you must refer to identifying labels on the vehicle or the service manual. technician b states that to determine the amount of refrigerant needed, you just charge the system until the pressures look correct. who is correct?

Technician A.

Explanation:

Freon is an aerosol propellant, refrigerant, or organic solvent usually used in different types of halocarbon products. According to my research on different problem solving procedures, I can say that based on the information provided within the question the best step to figure something out is to look at the service manual, if you have access to one. Therefore I would say that the correct technician is Technician A.

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