YFM60 air cooled  modular chillers adopts completely closed scroll compressor. Due to modular design, the combination is easy. There is a main controller to control other sub-modules. The display screen can realize the remote controlling. The each module can start/stop automatically according to the real loads, so can save energy a lot. There are no costs of cooling tower, cooling water pump, electric water treatment equipment and chiller room, so the initial investment is small. Sound insulation material is applied surround the compressor, so the noise caused by the unit is less than 60dBA and meets the environment protection demands. The unit adopts over-heat pipe and double one way valve, double expansion valve, so can run normally at -12 in winter. Its COP≥2.8.