Mechanical Code…
A complete factory-assembled and tested system that is shipped in one or more sections and has no refrigerant-containing parts that are joined in the field by other than companion or block valves.
(Uniform Mechanical Code® 220.0)
Building Trades Resource
Mechanical Code…
A complete factory-assembled and tested system that is shipped in one or more sections and has no refrigerant-containing parts that are joined in the field by other than companion or block valves.
(Uniform Mechanical Code® 220.0)