Cove 27K Tri-Zone Cassette

The cassette's advantage is distribution. Conditioned air leaves the panel along four sides and is drawn back through the center, which evens out temperature across a room better than a single wall jet and avoids throwing air directly at a seat. In a room with a high ceiling this matters; so does the fact that the cassette takes no wall space in a room where every wall is already doing something else. Each cassette has its own filter and its own setpoint, and the panel can be released for service without disturbing the ceiling.

The cost is architectural. A cassette needs a ceiling void of roughly ten inches, a route to the outside for the line set, and somewhere for condensate to go — often a small lift pump, because a ceiling has no gravity fall to an exterior wall. The panel stays visible, so its position belongs in the ceiling drawing rather than in a decision made on site. Where those conditions exist, this is the quietest-looking installation in the collection.

Three indoor units on one condenser let a floor of similar rooms run on one outdoor unit with separate controls. The inverter compressor follows the combined load, and any room can be switched off without disturbing the others. A single condenser keeps the plant room or the wall simpler than three separate systems.