... 220/110v 3.high effiently 4.green refrigerant cooling used escalatorescalater air conditioner,escalater Air Conditioning,escalater Air cooling1. ... .air-conditioner,air chiller,cooling unit IT is widely used in car elevators, medical elevators, residential elevator, goods elevators, ... into car with heat insulation duct;4 Insulation done in the interlayer, prevent from forming condensation water;5 The ...