PROPER CHARGING AND RECHARGING OF MVAC SYSTEMS After
system evacuation, and dehydration the system can be charged with new or recycled refrigerant. In order to operate efficiently, the system must be critically charged (exact pounds and ounces. The refrigerant type and critical charge level is normally found on the specification decal fastened on or close to the AC system under the hood,
in the vehicle service manual, by the vehicle manufacturer or aftermarket AC equipment supplier. An incorrect system charge reduces efficiency and comfort. An
undercharged system will result in insufficient cooling, possible icing of the evaporator, and lower pressures that can cause the system to shutdown. An
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