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AC Electricity - Alternating current also known as household power.
Air Compressor - A device that pumps air to and builds air pressure in an air system.
Air Dryer - A device that cools, filters, and dries the air delivered by an air compressor.
Air Governor - A device that controls the operation of the air compressor by constantly monitoring air
pressure in the supply tank of the air system. The air governor initiates the unload cycle when the
cut-out pressure is reached. The air governor also controls the air dryer by sending an air signal (at
the beginning of the compressor unload cycle) to the control port of the air dryer, initiating the
purge cycle. When this air signal is removed by the governor (at the beginning of the compressor
load cycle) the purge valve closes and the drying cycle begins.
Ampere (Amp) - The unit of measure of electron flow rate of current through a circuit.
Ampere-hour (Amp-hr. AH) - A unit of measure for a battery electrical storage capacity, obtained by
multiplying the current in amperes by the time in hours of discharge (Example; a battery which
delivers 5 amperes for 20 hours, delivers 5 amperes times 20 hours, or 100 Amp-Hr. of capacity.)
Black Water - Term associated with the sewage holding tank. The toilet drains directly into this tank.
Chassis Battery - Powers chassis 12V accessories and starts engine.
Circuit - An electric circuit is the path of an electric current. A closed circuit has a complete path. An
open circuit has a broken or disconnected path.
City Water - A term associated with the water supply that you hook-up to when you are at camp-
grounds. It is called city water because you pull water from a central source (like in a city) and not
the fresh water tank.
Compressor Load Cycle - The time during which the air compressor is building air pressure in air sys-
tem.
Compressor Unload Cycle - The time during which the air compressor is idling and is not building air
pressure in an air system.
Curbside - This refers to the side of the motorhome which faces the curb when it is parked. Often called
the door side.
Current (Alternating) (AC) - A current that varies periodically in magnitude and direction. A battery
does not deliver alternating current. Also referred to as shore power, utility power, inverter power,
generator power, etc.
Current - The rate of flow of electricity or the movement rate of electrons along a conductor. It is com-
parable to the flow of a stream of water. The unit of measure for current is the ampere.
Glossary
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WINDSOR
GLOSSARY OF TERMS
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