The Basic Technical Data of bus air conditioner AB230 as following: Cooling Capacity 27.906KW(24000Kcal/h) Dimension 3900x1700x175mm Evaporator Airflow 5400m3/h Condenser Airflow 7800m3/h Fresh Air Control Fixed Fresh Air Control Airflow Control In 3 steps Temperature Control 15-30oC Voltage 24V Power Input 79A Refrigerant(R134a) 7.0±0.3 HP Switch OFF: 2.34Mpa ON: 1.65Mpa LP Switch OFF:0.034Mpa ON:0.21Mpa Weight 215KG Bus Suitable 8.5-9m Packing carton