SC Packaged Equipment Practice Questions - South Carolina Packaged Equipment - Heat Pump Contractor Examination Exam

Field refrigerant lines serving packaged heat-pump equipment should be installed with which copper product?

Type M plumbing copper that has been used for potable water ACR (air-conditioning and refrigeration) copper tubing that is cleaned, dehydrated, and capped Schedule 40 PVC pressure pipe Galvanized steel sprinkler pipe

Correct Answer:

ACR (air-conditioning and refrigeration) copper tubing that is cleaned, dehydrated, and capped

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