If you have a big room, you should have at least four 3-horse ones. Or one 10- 15 horse, or two 5 horses. Refine this 150 apartment to a single room, and then air-condition it according to the area of the single room.

The size of air conditioner is generally calculated in P (horse), and the actual use area of different horses is different, which makes the applicable area of air conditioner different for different horses.

For traditional constant-speed air conditioners, the commonly used conversion relationship is:

1P cooling area12-17m2, heating area10-1m2.

1P cooling area of cold and warm hanging machine12-21m2, heating area13-18m2.

1.5P cooling area16-28m2, heating area17-23m2;

2P cooling and heating cabinet has a cooling area of 23-30m2 and a heating area of 20-22m2.

2.5P Machine-made cooling area of cold and hot cabinet is 28-35m2, and heating area is 24-28 m2；;

The machine-made cooling area of 3P cooling and heating cabinet is 33-42 square meters, and the heating area is 27-30 square meters.

As for the inverter air conditioner, it can't be calculated by the maximum cooling capacity of the air conditioner because it doesn't work in the maximum cooling state for a long time. It is generally believed that the number of inverter air conditioners should be 145W- 175W per square meter.