Reclamation is the cleaning of refrigerant through oil separation and single or multiple passes through devices, such as replaceable core filter-driers.

The EPA (NAAQS) set ambient pollutant standards to address 12 criteria pollutants.

A ___ is used in a boiler system if there are intermittent peak loads of condensate that can exceed the surge capacity of the deaerator, such as condensate with varying pressures or temperatures or condensate that does not have sufficient pressure to enter the deaerator on its own.

A clean gauge glass is the only way to accurately determine boiler water level.

When replacing the flange cover in a duplex fuel oil strainer, the ___ must be carefully replaced to prevent air from entering the system.

Atmospheric pressure is the sum of gauge pressure and vacuum pressure.

A clean gauge glass is the only way to accurately determine boiler water level.

The ___ line is a refrigerant line that carries low-pressure refrigerant between an evaporator and a compressor.

A steam system is a boiler system that supplies the proper amount of water to a boiler.

A ___ is a burner accessory that opens when energized by contacts in the programmer to allow fuel oil to flow to a burner nozzle.