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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.

An aquastat commonly has a temperature differential preset by the manufacturer.