Glossary: A-B

Click on a letter to take you to the list of terms and technical information starting with that letter.

A-B C D-E F-G-H I-J-K-L-M-N O-P Q-R-S T-U-V W-X-Y-Z

AC (Alternating Current)
An electric current that reverses directions at regularly occurring intervals.

AMP (Ampere)
A unit of flow of electrical current.

	OHM'S LAW:
	For three phase A.C. circuits

Armature
The rotating part of a motor or the moving part of a contactor or relay.

Bimetal
Two dissimilar types of metal fastened together, when heated they bend which can open or close a circuit.

Bleed Gas
A small flow of gas that assists a diaphragm of a bleed gas valve to operate.

Boiler Horsepower
One boiler horsepower equals 33,475 BTU/HR

Booster
An electric, gas or steam hot water booster for a commercial dishwasher that will supply 180°F minimum rinse water.
Formula to size an electric booster.
G.P.H. / 10 = KW based on 40°F temperature rise.

BTU (British Thermal Unit)
The heat required to raise the temperature of one pound of water by one degree Fahrenheit.
One BTU per minute = 17.58 watts

Bypass
A small passageway machined in a valve to allow gas or water to bypass around a closed valve.