SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

Under IMC 1108.3.3, soldered joints in refrigerant piping are limited to:

Any refrigerant and any pressure if 95/5 solder is used Group A1 refrigerants at a pressure of 200 psi or less Group A2L and A3 refrigerants only Ammonia steel piping exclusively

Correct Answer:

Group A1 refrigerants at a pressure of 200 psi or less

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