ONE-WAY COANDA EFFECT CASSETTE 42KY
Features and advantages
Energy performance, comfort and indoor air quality: Carrier’s new 42KY cassette is the all-in-one solution to meet heating and cooling requirements for commercial buildings and provide optimum comfort for users. Low consumption (LEC) variable speed active comfort unit making it possible to adapt the indoor temperature automatically and independently to the preferences of occupants with very quick response times. Coanda Effect diffusion, optimised according to the standard NF EN ISO 7730, ensures perfect control of thermal phenomena that can cause discomfort. Carrier’s new 42KY cassette makes it possible to eliminate draughts that are felt with sweeping diffusion systems or direct airflow onto the occupant. Eco-designed product that is 90% recyclable. The 42KY cassette has been developed to limit its impact on the environment throughout its life cycle. The air treatment unit is fitted within the suspended ceiling, at the edge of the room, with the outlet facing the windows. It has all the economical advantages that come from installing and operating a central heated and chilled water production unit. The location facilitates hydraulic connection via the suspended ceiling of the adjoining corridor, and gravity draining of condensate (no pump).
The centrifugal turbine draws air through a perforated metal intake grille. The air is filtered, then heated or cooled through a temperature exchange coil fed with either hot or chilled water. The air is then pulsed horizontally at 180°, by means of the Coanda Effect in the room to be treated.
The Coanda effect
One-way Coanda Effect diffuser: The single slot peripheral outlet with its narrow opening and specific internal profile will increase the initial speed of the air as it leaves the diffuser. The high speed of the moving flow of air causes an area of low pressure which keeps it close to the ceiling, (there is no direct blast on occupants) and the ambient air is drawn in by induction to be reinjected in the air stream. The air mix rate, the range and the coverage of the air flow are improved, which reduces thermal phenomena that cause discomfort in the occupied area (residual air flow rate, asymmetric temperatures, radiation caused by walls, etc.).
Fresh air inlet spigot
Spigot Ø 100 mm, max air flow 90 m3/h recommended. Network balancing system not supplied by Carrier.
1)Fresh air inlet on device 2)Ø100 / Ø125 mm adapter 3)Air flow controller 60/75/90 m3/h 4)Air flow controller 15/30/45 m3/h