... - Modular design enables easy expanding capacity from 20ton to 140ton. - Convenient operation VM (Modular unit) & VFS ... cooled water chiller and heat pump unit is a new generation of modular unit. This unit is ... -diagnosable system, and is controlled by microcomputer. Applicable to hotels, villas, hospitals, cinemas, stadiums, recreations, ... . And the unit is easy to install, manage and maintain.