... conditioner,there are wall mounted type,floor standing type,floor ceiling type and cassette type.Wall mounted type has 7 models.There are ... but we can do 220v/50hz,220v/60hz) Cassette type has 4 models.There are 18000btu,24000btu,41000btu,48000btu ... ,the flat plate collector can't broken.Working Principle Diagram:Cassette Type Solar Air Conditioner Catalogue:Cassette Solar Air ConditionerModelTAS( ...