When installing a new split system air conditioning system
A) It is never necessary to add refrigerant because the condensing unit includes a charge for the evaporator and lines
B) Add liquid to the liquid line until it is full and the refrigerant stops flowing
C) It is only necessary to add refrigerant when the line length exceeds 15 - 25 feet
D) It is always necessary to add refrigerant for the lines and evaporator coil
C
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