T3 R410a T1 air conditioner inverter r410a 24000btu 110V/60HZSplitOlyAir Brand Air Conditioner Features: 1. Concealed Display The display will be concealed when the units is not in operation, then the panel will look more simple and elegant. LED lamps and digital tube bring more clearly indicating to customer. 2. Mono&Multi Compatible Compatible indoor unit for both mono&inverter multi system. No complicated process is needed, only to decide how many indoor units to fit your profit and choose the right outdoor unit to complete your mono and multi split system. It comes in handy for warehouse and stock adminstration. 3.Refrigerant leakage detect can better prevent the compressor being damaged by refrigerant leakage or compressor overload. 4. Louver position memory function when you start the unitnext time, the angle of horizontal louver will automatically move to the same position as you set last time. 5. 8 Celsius degree In heating operation, the present temperature of the air conditioner can be as lower as 8 celsiun degree and prevents household things freezing when the house is unoccupied for a long time in severe cold weater. 6. Low ambient cooling With low ambient kit, the outdoor fan speed can be changed according to the condenser temperature and it will run smoothly under the temperature as low as -15 Celsius degree