Water is the basis of our lives. This is especially true for sustainably designed buildings. A precise drinking water installation diagram is therefore essential for equipping complex construction projects with a trouble-free water supply in the long term. A drinking water house connection diagram is represented by a line diagram for drinking water.
Taps for fresh water are only the externally visible components of the scheme. The drinking water pipes run through the houses like highways for a clean and hygienic drinking water supply.
In this article, we provide a comprehensive breakdown of the regulations that need to be observed and the tools that make detailed planning particularly time-efficient.
The most important facts in brief
A drinking water installation diagram summarizes the individual components of the water supply system
It is an essential component in the design of building technology
The fresh water connection ensures a hygienic drinking water supply
What exactly is a drinking water installation scheme?
The scheme is a technical plan that describes the various parts of a drinking water system and thus lays the foundation for an efficient and trouble-free drinking water supply for buildings. Among other things, it contains the basic principles for the installation and operation of a pipe network that transports drinking water from the source to the consumers.
An accurate installation diagram should clearly show the overall system of multiple components - including discharge points, piping, pumps and other components. This way, technicians can determine the correct positioning of the various components and ensure that the system is installed correctly.
Basis for sustainable supply
A diagram for a drinking water installation helps to ensure that all components of the system can be checked and maintained in good time. Regular maintenance is necessary to ensure that all components function properly and in accordance with regulations and that no parts and connections become blocked or wear out prematurely.
The schematic provides technicians with a visual reference they can refer to in order to understand and diagnose exactly what is going on in the system. This makes it possible to identify and avoid problems at an early stage.
What is all part of a drinking water installation scheme
A drinking water installation is a complex system that ensures a permanent water supply. It consists of a number of components that must be installed according to a prescribed scheme. Such a design is crucial for the safe and hygienic supply of drinking water to a building.
The components of the drinking water installation scheme include the main pipe network, the house connection pipe, the supply pipe and the pressure control valve. The main pipe network is responsible for transporting the water from the public network into the building.
The service pipe transports the water from the main pipe network into the building. The supply pipe in turn transports the drinking water from the house connection to the individual appliances in the building. Finally, the pressure control valve ensures a constant pressure in the entire pipe network and thus prevents excessive pressure losses.
What needs to be considered in the drinking water installation scheme?
Regardless of whether it is a drinking water installation, waste water system, heating pipe network or gas pipe - the aim of a diagram is to depict a complex, three-dimensional situation in two dimensions in a simple way. All branches and connections are clearly displayed to enable a clear and comprehensible representation.
Standardized quality
A drinking water installation must be designed in accordance with certain regulations. It is therefore important to find out about the applicable standards - such as DIN EN-806-4 - before implementing the drinking water installation scheme and to implement them accordingly in the planning. Pipes in older buildings were often laid in accordance with DIN 1988, which has been almost completely incorporated into DIN EN-806.
The Ordinance on General Terms and Conditions for the Supply of Water ( AVB-Wasser for short) must also be complied with for domestic drinking water connections and all pipes and filters.
A professional drinking water installation diagram should have a clear structure and contain all the necessary components. Software support in particular can ensure a comprehensible and complete presentation.
Some guidelines must be observed during installation, especially the appropriate connections to the water supply system (e.g. outlets, valves, etc.), the correct routing and positioning of pipes, their diameter and suitable materials.
The rules for the drinking water installation scheme also cover the installation and operation of pressure regulators, backwashable filters, fittings and other components of the installation system. Specific safety requirements must also be observed. In order to achieve the best possible result, the installer should adhere to the sequence of work steps specified in the standard.
Maintenance for lasting trouble-free operation
For the successful and trouble-free operation of a building, it is crucial that all components of the installation are regularly maintained so that they remain up to date and can perform their function optimally. Occasionally, parts need to be replaced or repaired in order to provide safe and hygienic drinking water. Again, the instructions of the original design must be followed.
What hygiene aspects need to be considered?
Special attention to hygiene aspects is essential to keep the building's water fast lanes permanently germ-free. But hygiene involves more than just cleaning the connections properly.
This includes avoiding cracks in the pipes, regularly checking for any leaks or damage to the pipes and hoses and observing the correct procedures for laying the pipes.
Other factors that influence the hygiene level:
Water connection: The water connection must be connected correctly so that the water can flow correctly - in compliance with hygiene standards.
Installation: The correct screw connection prevents leaks in the pipes.
Air bleed valves: Air bleed valves should be installed to equalize the pressure in the system and guarantee proper functioning of the drinking water network.
Safety and KFR valves: Combined free-flow valves with non-return valves in particular must be checked regularly to ensure that the system is functioning properly.
Sanitary connections: Finally, it must also be ensured that all sanitary connections are connected correctly and in accordance with all technical regulations and that there are no leaks. A leaking pipe is always a potential gateway for pollutants.
Hygiene and cleaning
In addition to the correct installation scheme, it is also important to ensure that all components of the system are and remain clean. Regular cleaning of all parts of the drinking water installation is necessary to ensure the quality of the water and to consistently maintain hygienic standards.
Furthermore, all components should be tested for harmful substances at regular intervals to check for possible contamination of the water with bacteria or viruses.
An optimized drinking water installation scheme is essential for drinking water hygiene
Even if numerous factors have to interact in a complex system to design a construction project and building, a functioning and hygienic drinking water supply is always the basis for sustainable operation later on.
The water highways that run through the building must be precisely coordinated to ensure smooth processes. Modern software solutions can help to make the details comprehensible and transparent for everyone involved in the project.
Trimble Nova is a particularly powerful CAD and calculation software that can also visualize complex installation plans. With its own CAD core, integrated calculations and 3D modeling capability, it ensures precise analysis for the planning, maintenance and operation of drinking water networks.
In addition, Trimble Connect is the perfect extension for improved networking within larger teams. This tool enables all project participants within a shared data environment to be provided with the necessary information at the right time.
The drinking water installation scheme thus becomes the actual lifeline of the respective construction project - transparent, comprehensible and taking into account the relevant hygiene standards.
