... guiding blade with tense design can reduce transferring loss at maximum.2:health, energy saving, environmental protect2.1 ... During heating, much warmer air stream can arrive at floor from the ceiling in order to make people ... , every computer can control 256 sets terminal unit at most; after internet connecting, the computer can control ... the ceiling. cassette type air conditioner(CK1-36(18x2)QW/Y-E2)