RNW 404-CS dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems. It is a complete refrigeration unit, equipped with pre- and post-condenser coils fed by the water coming from the radiant panels. It has a zinc-plated sheet metal casing and it is horizontally installed into false ceilings. It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB. This is a very compact unit, which is particularly noiseless and therefore suitable for residential applications.