NC PLUMBING CODE
A device used where a storage water heater is supplied with cold water that passes through a check valve, pressure reducing valve, or backflow preventer.
What is a thermal expansion tank?
Piping that does not terminate not more than 6 inches above and not less than two times the discharge pipe diameter above the floor or flood level rim of the waste receptor.
What is the Temperature and Pressure Relief discharge piping?
A water closet, urinal, lavatory, or bidet shall not be closer than _________ from its center to any side wall.
What is 15 inches?
The prohibited locations of plumbing systems.
What is in an elevator shaft or in an elevator equipment room?
The maximum length connectors cannot exceed.
What is 6 feet?
The minimum size for a horizontal branch drain for a washing machine.
What is 3"?
Shall not be required for a replacement water heater installation, if one was not previously installed.
What is a water heater pan drain?
__________ shall not be connected to a drain of not less than 1 1/2 inches in diameter.
Domestic food waste disposers (Garbage Disposal)
The type of system that shall be installed not less than 6 inches below the frost line and not less than 12 inches below grade.
What is a water supply system?
Shall be installed with out dips or sags and shall slope upward toward the vent or chimney not less than 1/4 inch per foot.
What is a vent connector?
The maximum distance a 2" p-trap from the vent.
What is 8'?
The preset temperature set by the manufacturer or installer for any new residential water heater offered for sale or lease for use in a single-family or multi-family dwelling.
What is 120 degrees Fahrenheit or 49 degrees Celsius?
Wall materials shall extend to a height of not less than _______ above the room floor level, and not less than 70 inches above the drain of the tub or shower.
What is 6 feet?
The maximum horizontal spacing for PVC and ABS hangers.
What is 4 feet?
Shall be within 6 feet of the appliance, and shall be installed upstream of the union, connector or quick disconnect device it serves.
What is a shutoff valve?
A device used to reduce the pressure in the building water distribution piping to not greater than 80 PSI.
What is a Pressure Reducing Valve (PRV)?
Water heaters and storage tanks shall be located and connected so as to provide _________ for observation, maintenance, servicing and replacement.
What is access?
The minimum height the fill valve backflow preventer shall be above the full opening of the overflow pipe for flush tanks.
What is 1 inch?
In existing dwellings, where interior alterations, repairs, or additions require a building permit occur, or where one or more sleeping rooms are added or created, or where fuel-fired appliances or fireplaces are added or replaced, _________ shall be provided.
What is carbon monoxide alarms (CO detectors)
The type of air needed for proper combustion.
What is combustion air (not make up air)
What is the weighted average lead content of 0.25% or less?
An approved mixing valve.
What is a device in a water heating system where temperatures exceed 140 degrees Fahrenheit to temper the water for domestic uses?
A type of urinal that is prohibited.
What is a trough urinal?
The size of the sleeve for a pipe passing through a wall.
What is two pipe sizes greater than the pipe?
A device for controlling and maintaining a uniform supply pressure, either pounds-to-inches water column or inches-to-inches water column.
What is a regulator?