Central air conditioning multi-connection, 6800 square meters office building, how big is the multi-connection? What is the monthly operating cost?

This area requires about 675 kilowatts of cooling capacity. Taking Chigo multi-line as an example, it is 15 CMV-V450WSAM, and the cooling power of this mechanism is 14kw/ hour, that is, 2 10kw/ hour. According to the electricity charge 1 yuan /kw.h, the air conditioner runs 10h every day and 30 days every month, and the monthly operating cost is 6.3w yuan. However, it should be noted that this situation is that the indoor unit is fully open and the outdoor unit is at full load, and the cost is the highest. Under normal circumstances, when the temperature is about to reach the set requirements, the air conditioner will run at low power. In general, the operating cost in the transitional season is half or even lower than the highest cost. So the monthly operating cost depends on the external environment of the place of use.