Cold and hot water supply system

The water supply for this project is the branch system. In this type of installation, the various fixture units are connected one after the other to the same trunk line, generally using tee fittings.

Also, as there are only three bathrooms in this project that require hot water supply, we have adopted the simpler method of installing individual water heaters on each floor.

1. First step of dimension the supply pipes is to calculate the water flow in a specific way, and here we calculated according to EN806.

The loading units method is used (LU, Loading Units) with: 1 LU=0.1 l/s

Get the loading units for different points of use, LU: Washbasin, WC = 1 Urinal with outlet valve = 3

2. Starting with the last fixture that is connected to the network, the sum of the LUs is calculated for each section of pipe. In this way we got the sum of LU.

3. The European standard EN8063 presents a simplified method for pipe dimensioning. Based on the type of material used for the pipes and the LUs calculated, the diameter of each section of pipe is determined.