Glossary | Page 3 | Grand Design

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LEVELING JACK A jack lowered from the underside of trailers and motor homes for the purpose of leveling the vehicle. A leveling jack is designed to bear a significant portion of the RV's weight.
LP GAS Liquefied Petroleum Gas, commonly written as "LP Gas". Two examples of LP Gas are propane and butane. LP Gas is heavier than air in gas form and about half the weight of water in liquid form. LP gas is used to fuel appliances in the RV, such as the stove, oven, water heater and refrigerator. Propane tanks are usually rated as pounds or gallons.
LOW POINT The lowest point in the plumbing. Drains are placed here so that water will drain out of the lower end of the camper when flushing or winterizing the water system. These drains must be closed when you fill the water tank.
MOTORHOME (MH) A motor vehicle built on a truck or bus chassis and designed to serve as self-contained living quarters for recreational travel.
NET CARRYING CAPACITY (NCC) The MAXIMUM WEIGHT of all personal belongings, food, fresh water, propane, tools, dealer installed accessories, etc., that can be carried by the RV.
NONPOTABLE WATER Water not suitable for human consumption.
OEM This refers to the original equipment manufacturer of the individual appliance or component.
PARK MODEL A travel trailer that requires park facilities to function. It lacks holding tanks and dual-voltage appliances, requiring to be plugged into water, sewage, and electrical facilities. A park model is more of a small mobile home than a recreational vehicle, in appearance and function.
PART TIMERS The term used for people who use their RV more than usual (more than just a few weekend trips a year), but who still use it less than full time.
PATIO MAT Carpet or woven mat for use on ground outside of RV. Used whether or not a concrete patio pad is available where camping.
PAYLOAD CAPACITY The maximum allowable weight that can be placed in or on a vehicle, including cargo, passengers, fluids and fifth-wheel or conventional hitch loads.
PILOT A pilot is a small standby flame that is used to light the main burner of a propane fired appliance when the thermostat calls for heat. Pilots can be used in furnaces, water heaters, refrigerators, ovens and stove tops.
PORPOISING A term used to define the up and down motion in an RV while traveling
POWER SOURCE Also referred to as shore power, this refers to the receptacle outlet you are using to plug in your shoreline power cord. This can be a campsite power box or electrical box, a residential receptacle outlet specifically wired for your camper or a generator (customer supplied).
PRIMITIVE SITE A campsite that may have city water, shore power or sewer hook-ups but not all of them; primitive sites may have no hook-ups or connections at all.
PROPANE PG, or liquefied petroleum gas, used in RVs for heating, cooking and refrigeration. Also called bottle gas, for manner in which it is sold and stored. This is the proper term in the RV industry when referring to "LP Gas."
PULL-THROUGH SITES Campsites you can drive through and park (without having to back up into the site).
REFER Slang for "refrigerator". Refrigerators are often found in either a "two-way" or "three-way" operating mode. Two-way: has a gas mode and an AC mode. Three-way: has a gas mode, AC mode, and 12v DC mode. The coolant used in RV refrigeration is ammonia. The two most common manufacturers of RV refrigerators are Norcold and Dometic.
RIG What many RVers call their units.
ROADSIDE This refers to the side of the camper that faces the road when it is parked. Often called the off-door side.
ROOF AIR CONDITIONING Air conditioning unit mounted on roof of RV, to cool the RV when it is parked. When moving, most RVs are cooled by separate air conditioning units which are components of the engine, or they may be cooled by a roof top if a proper size generator is installed.
RV Short for Recreation Vehicle, a generic term for all pleasure vehicles which contain living accommodations. Multiple units are RVs and persons using them are RVers.
RVDA Abbreviation for Recreational Vehicle Dealer's Association.
RVIA Abbreviation for Recreational Vehicle Industry Association
SELF CONTAINED RV which needs no external electrical, drain or water hookup. Thus, it can park overnight anywhere. Of course, self-contained units can also hook up to facilities when at campgrounds.
SANITIZATION Refers to the camper's fresh water system that has been sanitized with chlorine bleach before use or after storage.
SHORELINE POWER CORD This is the electrical power cord that runs from the camper to the campsite shore power outlet.
SLEEPING CAPACITY WEIGHT RATING (SCWR) The manufacturer's designated number of sleeping positions multiplied by 154 pounds (70 kilograms).
SLIDEOUT A compartment added to an RV to increase interior space. It slides into the body during travel and slides out when parked.
SNOWBIRD Term for someone in a northern climate that heads "south" in winter months.
STINKY SLINKY Slang for the sewer hose, constructed from a spiral wire covered with vinyl. One end attaches to the RV piping and the other into the local sewer dump facilities
STREETSIDE The part of the vehicle on the street side when parked. (Also referred to as the off door-side or ODS.)
SURGE PROTECTOR Device (customer supplied) that is installed at the power supply location designed to prevent 'surges' or 'spikes' in electrical current that may damage the RV's electrical/electronic components.
SWAY Fishtailing action of the trailer caused by external forces that set the trailer's mass into a lateral (side-to-side) motion. The trailer's wheels serve as the axis or pivot point. Also known as "yaw."
THERMOCOUPLE A thermocouple is a device that monitors the pilot flame of a pilot model propane appliance. If the pilot flame is extinguished the thermocouple causes the gas valve to shut off the flow of gas to both the pilot flame and the main burner.
TIP OUT The term used for an area or room in an RV that tips out for additional living space. The Tip-Out was generally used in older RVs. Newer RVs mainly use a slide-out.
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