DIN Standards Committee Heating and Ventilation Technology and their Safety
Hydraulic balancing of heating, cooling and ventilation systems – Part 2: Procedure for new heating systems to be installed in residential buildings
Abstract
This document describes the procedure and process for carrying out hydraulic balancing of new heating, cooling and ventilation systems. For the sake of simplicity, the explanations in this standard are mostly limited to heating systems, but also apply mutatis mutandis to cooling and ventilation systems. This document is applicable to all hydraulic sections of a heating, cooling and ventilation system, consisting of generation, distribution and transfer circuits. It is applicable to systems with a water-based heat transfer medium. It is assumed that all components and their properties are known. If there are components in the system that can only be roughly assessed, then the application of Part 3 of this series of standards is recommended. In contrast to "hydronic balancing", which includes the dimensioning and adjustment of all hydraulic subsections of generation, distribution and transfer, the term "thermal balancing" for the heat transfer area includes solutions that are not based on compliance with target water quantities in all system sections and at all transfer devices, but on the recording of temperatures. (See Part 4 of this standard - Temperature-based alternatives to hydronic balancing). Both approaches are aimed at minimizing/avoiding hydraulic oversupply and undersupply of heat transfer devices compared to the unregulated state.
Begin
2025-05-13
Planned document number
DIN 94679-2
Project number
04112234
