Solar system cleaning – an important investment in the service life of the system
Is the solar fluid in your system usable?
We clean cracked solar systems effectively and for the long term!
But what does "cracking" mean, and how do we recognise that a solar system is cracked? The liquid filled into the system by the manufacturer is clear and usually coloured. Over time, the liquid decomposes and changes. The dye boils out and turns yellowish to black. In this case, the system is cracked.
Rely on the expert for solar system cleaning
The constant development of solar systems requires a corresponding adjustment of the cleaning. Continuous research is being conducted to find the maximum temperature that can be produced by a solar system to increase its efficiency. In most cases, a mixture of water and glycol is used as the heat transfer medium, as it offers optimum protection against the system freezing to minus 25 degrees. But: the fluid is exposed to very high temperatures if it overheats due to stagnation of the solar system. The growing number of collectors further increases the risk of overheating.
In addition, the glycol mixture, which has an excellent viscosity, serves as corrosion protection for the installed components. Another advantage of the mixture of water and glycol is the optimal thermal properties. This significantly reduces the amount of pumping required.
Cracks in the solar system due to extremely high heat
The main cause of cracked systems are very high temperatures, which can be far above 330 °C. This can lead to the formation of new molecules. In this case, new molecular chains are formed. Carbon can also be deposited. This usually happens in the collector, at the hottest points of the plant.
If the mixture dissolves into its components, this is called cracking. This can clog the collector and make it unusable. If the clogging is not yet far advanced, the function of the collectors can be restored by flushing. If the colour of the liquid is yellow to black or if it smells burnt, it has been exposed to high temperatures and is unusable.
A slight discolouration of the mixture, on the other hand, is a normal sign of use and no cause for concern.
Tarry degradation products are also a sign of an unfit solar fluid.
Absolute clarity about the condition of the fluid is provided by determining the pH value.
Would you like to commission us to clean your solar system? Do you have any questions about our services? Then we look forward to hearing from you!