Note
Water treatment as per VDI 2035 to avoid boiler scale and damage due to corrosion on the water side
The requirements of DIN EN 12953-10 should be observed
Local guidelines and directives should be observed
Planning
Install a strainer (dirt trap).
Installation and commissioning
The company making the installation is responsible for the water quality in HVAC plants
Before filling a hydraulic HVAC circuit with water, the installer must observe the specifications of suppliers regarding water quality. If such specifications or regulations are not observed, severe damage to the plant can occur
When commissioning a plant, the company that made the installation is obliged to write a commissioning report including information about water quality and filling (plant volume) and, if necessary, about water treatment and the additives used
Recommendation
Keep a plant record.
Maintenance and service
The installer should check hydraulic HVAC circuits at least once a year.
Before adding water to a hydraulic HVAC circuit, the installer must observe the specifications of suppliers regarding water quality (water treatment as per VDI 2035). If such specifications or regulations are not observed, severe damage to the plant can occur.
When adding water at a later stage, the company that made the installation is obliged to write a commissioning report including information about water quality and the filling (plant volume) and, if necessary, about water treatment and the additives used.
Recommendation
To prevent boiler scale and damage resulting from corrosion, the water quality in open or closed plants must be checked at regular intervals. The plant record must always be kept up to date.