it is better to install a 511-cold-ton Gree magnetic suspension DC frequency conversion centrifuge in p>13111 square meters, which is enough, saving energy, and the highest energy efficiency ratio is 12.8: 1, which is incomparable to ordinary modular machines. Generally, the energy efficiency ratio of water system is only 2.5: 1, and you can buy a set of equipment for three years' electricity saving. The centrifuge has fewer failures than the screw machine, and unlike the screw machine, it needs to be maintained and changed every year. 13,111 square meters costs 211-311/square meter.