Control method of multi heat pump system using multiple heat source with air heat source cooling operation and simultianeous operation of water heat source cooling and heating

摘要

The present invention relates to a control method of a multi-heat pump system using multiple heat sources, which allows conversion of an air heat source cooling operation and a simultaneous operation of water heat source cooling and heating without using a four-way valve. More particularly, the present invention relates to the control method of the multi-heat pump system using multiple heat sources with an air heat source cooling operation and a simultaneous operation of water heat source cooling and heating, which includes two compressors of a water cooling compressor and an air cooling compressor in a single device, wherein the two compressors are connected to a plurality of first and second valves through branch pipes so that a water cooling and air cooling operation, a cooling/heating simultaneous operation and a cooling single operation may be selectively converted and driven without using a four-way valve and even without stopping a compressor at a low compression ratio. Even the apparatus is driven and converted, the apparatus can be continuously driven by saving a period of time, for which a product is switched on and off, and driving efficiency can be increased.