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Overrun Timer
The product includes a humidity sensor which automatically adjusts the levels of ventilation according to moisture levels in the air
It comes factory set and you only need to access the dip switches if you want to change the factory settings
Zehnder P/N 471 420 070
Bio Island
Zehnder Filter set 10 x Coarse 60% (G4) for ComfoAir 70 SLR-5500 Overrun TimerThis set consists of 10 x filters Coarse 60% (G4) suitable for use with the Zehnder ComfoAir 70. Coarse 60% is the name according to the new filter standard ISO 16890. Coarse refers to particles measuring 10 microns. Coarse 60% means that at least 60% of particles in the size interval 10 micron are removed. G4 is the classification earlier used. Filters can be used for supply and extract air.
