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Please I need help. I m a student in HVAC, would you explain to me "WHAT IS OVER CHARGE" or when can we say that the system is over charge.
 

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Please I need help. I m a student in HVAC, would you explain to me "WHAT IS OVER CHARGE" or when can we say that the system is over charge.

Typically the term Over Charge refers to the system having too much refrigerant. It can be determined by checking the superheat and subcooling of the system. An over charged system will normally have a low superheat and a high subcooling. Understanding the superheat and subcooling measurements and how they help determine the proper refrigerant charge as well as other refrigerant state malfunctions is essential in refrigeration theory and you need to spend some time studying them.
 
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