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A boil-out procedure is performed when a new boiler is installed or repaired.

A gas law relates to events that occur as heat is generated by the combustion of a fuel and is used to produce steam or hot water in a boiler.

A(n) ___ system is a solid-state control system in which a building automation controller is wired directly to control devices.

A safety valve’s capacity is listed on the data plate attached to the safety valve.

A gas law relates to events that occur as heat is generated by the combustion of a fuel and is used to produce steam or hot water in a boiler.

A boil-out procedure is performed when a new boiler is installed or repaired.

A(n) ___ is a heat exchanger used to absorb heat from an area to be cooled and transfer the heat into refrigerant.

Safety valves on steam boilers are designed to open slowly.

A(n) ___ is a heat exchanger used to absorb heat from an area to be cooled and transfer the heat into refrigerant.

Water hardness is commonly checked with an electronic hardness tester.