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UNIT#17 cw-4

Horizontales
A valve consisting of a hollow ball that floats on the liquid in an internal reservoir to restrict flow through the valve when the liquid reaches a certain level.
A fan designed to create the correct amount of flow through a combustion chamber and to handle the products of combustion
Atmospheric air that mixes with, dilutes, and cools the products of combustion.
A mechanical combustion safety control device containing a bimetallic element that measures flue-gas temperature and converts it to mechanical motion to trip a set of contacts.
A heat exchanger that has multiple clam-shaped sections welded together.
An open or closed tube that has an opening on one end and burner ports located along the top.
An electromechanical combustion safety control device that detects the pressure in a flue created by the flow of air from a draft induction fan.
A sheet-metal enclosure that surrounds a blower wheel.
Verticales
A type of burner that consists of an open pot into which fuel oil flows at a controlled rate.
The force that pushes a body outward when it is spinning around a center.
A 100% shutoff safety valve that controls the flow of fuel to a main burner and a pilot burner, if used.
Pressure greater than atmospheric pressure.
A valve that opens to let an air-fuel mixture in but closes when a firing cycle begins because of backpressure.
A pipe that has outlets for connecting other pipes.
Unconditioned atmospheric air at normal atmospheric pressure.