GENERAL INFORMAT ION - 1
CAY M A N 2 0 0 7
5
TIP:
Tips contain information, helpful hints
and/or suggestion for ease of operation of the
motorhome or its components.
GLOSSARY OF TERMS
AC Electricity - Alternating current also
known as household power.
AGM Batteries - A type of battery that
suspends acid in a special glass mat.
Air Compressor - Pumps air to and builds
air pressure in an air system.
Air Dryer - Cools, lters and dries the air
delivered by an air compressor.
Air Governor - 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.
Alternating Current (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.
Ampere (Amp) - The unit of measure
of electron ow 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.
ANSI - American National Standards
Institute.
ASTM - American Society for Testing and
Materials.
Black Water - Term associated with the
sewage holding tank. The toilet drains
directly into this tank.
CCA - Cold Cranking Amperage is the
amount of current a battery can deliver for
30 seconds at 0° F without dropping below a
speci ed voltage, usually 10.5 Volts DC.
Chassis Battery - Powers chassis 12 Volt
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 at
campgrounds. It is called city water because
water is pulled 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
pressure.
Compressor Unload Cycle - The time
during which the air compressor is idling
and is not building air pressure.
Curbside - This refers to the side of the
motorhome which faces the curb when it
is parked. Often called the door side or the
passenger side.
Current - The rate of ow of electricity
or the movement rate of electrons along a
conductor. It is comparable to the ow of
a stream of water. The unit of measure for
current is the ampere.
Cut-In Pressure - The pressure level in
the air system supply tank which triggers
the compressor load cycle. May apply to
some water systems, such as water pump,
accumulator tank, etc.
Cut-Out Pressure - The pressure level in
the air system supply tank which triggers
the compressor unload cycle. May apply to
some water systems, such as water pump,
accumulator tank, etc.
Cycle - In a battery, one discharge plus one
recharge equals one cycle.
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