FIELD: heating.
SUBSTANCE: refrigerating system includes a compressor acting at the speed of a compressor between the first speed and the second speed for supply of flow of compressed fluid medium to a header under the compressor pressure, and a condenser interconnected as to fluid medium with the header to receive compressed fluid medium. A fan of the condenser operates at speed of the fan between minimum speed of the fan and maximum speed of the fan to direct the cooling flow to the condenser to cool down compressed fluid medium, and an evaporator installed to receive compressed fluid medium flow and acting to cool down the second fluid medium. Controller operates at least partially based on the measured temperature of the second fluid medium and measured temperature of cooling flow to determine desired pressure and change the speed of the compressor and speed of the fan so that the compressor pressure is equal to desired pressure.
EFFECT: use of the invention will allow improving the efficiency under variable conditions.
19 cl
