Konvekta pre-heat coils are easy to clean
and have no negative performance effect on the energy recovery system.
For optimal performance air filters and silencers should have a maximum humidity of 90%. This requirement can be met if OA is heated by about 3-4 K. For this reason, the energy recovery coil is split and the first section functions as a filter pre-heat coil.
Since the pre-heat coil is installed upstream of the filter it is exposed to contaminants. Therefore, it must be able to be cleaned easily and thoroughly. The requirements are:
- Robust fins (fin thickness 0.4 mm)
- Fin spacing 4 mm
- Filter per-heat coil installed dept 120 mm to max. 180 mm
This is precisely the advantage of Konvekta high performance coils, as they can be cleaned using high-pressure water or steam - up to 180 psi.
When pre-heat coils and energy recovery heating coils are installed in series, there is no reduction in performance.