| A | B |
|---|
| Stage 1 | Provisions for the service entrance of the water supply and the sewer drain to the building are made |
| Stage 2 "Rough-in Plumbing" | Includes installing water supply pipes and sewage drain pipes |
| Stage 3 "Finish Plumbing" | Installition and connection of fixtures after the walls annd floors are finished |
| Main supply line | to the building from the municipal water meter, individual well, or other supply |
| Distribution pipes | are all pipes taken from the main to various service outlets |
| Water distribution piping materials | copper, galvinized steel, brass, and plastic |
| Copper pipping | comes in heavy, medium, and light wall thickness; used for underground and interior plumbing |
| Galvanized steel | a coating put on steel to protect it from rust; there are three grades standard, extra strong, and extra extra strong |
| Brass pipe | is used for highly corrosive water such as coastal areas where saltwater is used for cooling, baths, or other applications |
| Plastic pipe | acrylonittile butadiene styrene (ABS) polyvinyl chloride (PVC) and polybutylene |
| Sewage disposal system | is also known n/waste/ventas the Drai |
| Waste stack | carries the materials to the building drain which connects to the building sewer line |
| Cleanouts | are installed so the drain lines may be cleaned out with a plumbers rod or tape |
| Uniform plumbing codes | control all aspects of plumbing work |
| Heating, Ventilating, and air conditioning(HVAC) systems | produce the movement of air within a building to condition the space for its intended use |
| Air treatment | involves controlling the temperature, the humidity and air cleanliness |
| There are three basic types of heating systems | Forced air, hydronic, and electric radiant heating |
| Forced Air System | the heated air from the furnace or heat pump chamber is transferred by means of a motor driven fan through a series of ducts |
| Sources of heat for forced air systems | natural gas, liquefied petroleum gas, oil, coal, and electricity |
| Hydronic heating system | begins by heating water in aboiler, hot water is circulated by a pump and piping system |
| Electric radient heating system | usually consists of wires embeded in the ceilings, walls, or floors and base boards |
| Unit cooling systems | window units |
| Remote cooling sstems | have the condensing unit in a remote space away from the area to be cooled |
| Evaporate cooling systems | are most effective in dry climates where relative humidity is low |
| Air filters | usually have an adhesive coating that collects lint and dust particles |
