500 square meters for 10 units of 5 air conditioning. According to the national standards, 1 air conditioner is suitable for cooling area of 10~15 square meters, 1.25 for 10~19 square meters, 1.5 for 16~26 square meters, 1.7 for 15~30 square meters, 2 for 20~37 square meters, 3 for 30~58 square meters, 5 for 50~65 square meters. 6 pieces are suitable for 60~70 square meters.
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It is recommended to install 4 to 5 vertical air conditioners for 500 square meters of meeting rooms, and the cost of each vertical air conditioner is generally about 5,000 yuan, so 500 square meters is about 20,000 to 25,000 yuan.