HVACR316 - Piping. Related Codes Trade Math I. Related Codes. GENERAL : All refrigerant piping shall be installed, tested and placed in operation in accordance with code.
Trade Math I
Joints & Refrigerant Containing Parts in Air ducts
Joints and all refrigerant containing parts of a refrigerating system located in an air duct of an air conditioning system carrying conditioned air to and from humanly occupied space shall be constructed to withstand, without leakage, a pressure of 150 percent of the higher of the design pressure or pressure relief valve setting.