Air conditioning installation

Abstract

An air conditioning system for an air-conditioning of spaces comprises a compressor for compressing a refrigerant in a refrigerant circuit, a first heat exchanger for exchanging heat between the refrigerant and a heat reservoir, a plurality of throttles for expanding the refrigerant, a plurality of second heat exchangers for exchanging heat between the refrigerant and a heat transfer fluid in one associated heat transfer fluid circuit each, and a plurality of third heat exchangers which each are arranged in an associated space, for exchanging heat between the heat transfer fluid and indoor air of the associated space. To a second heat exchanger a throttle and a heat transfer fluid circuit with a plurality of third heat exchangers are associated.

1 . An air conditioning system for an air-conditioning of spaces, comprising:
 a compressor for compressing a refrigerant in a refrigerant circuit,   wherein the air conditioning system is formed for a variable refrigerant volume flow;   a first heat exchanger for exchanging heat between the refrigerant and a heat reservoir;   a plurality of throttles for expanding the refrigerant; a plurality of second heat exchangers for exchanging heat between the refrigerant and a heat transfer fluid in one associated heat transfer fluid circuit each;   a reservoir for the heat transfer fluid, to increase the thermal capacity, in each heat transfer fluid circuit;   a plurality of third heat exchangers which are arranged in one associated space each, for exchanging heat between the heat transfer fluid and indoor air of the associated space;   wherein a throttle and a heat transfer fluid circuit with a plurality of third heat exchangers are associated to a second heat exchanger;   and a control means for detecting a total demand for cooling or heating capacity and for controlling the compressor between a predetermined minimum capacity and a predetermined maximum capacity,   wherein the control means is formed to temporarily switch off the compressor, when the total demand for cooling or heating capacity falls below a predetermined threshold value.   
     
     
         2 . The air conditioning system according to  claim 1 , in which the compressor and the first heat exchanger are arranged in an outdoor unit outside a building or a vehicle or at an external border of a building or a vehicle, and one throttle each and an associated second heat exchanger are arranged in an indoor unit. 
     
     
         3 . (canceled) 
     
     
         4 . The air conditioning system according to  claim 1 , furthermore comprising:
 a temperature sensor in the heat transfer fluid circuit.   
     
     
         5 . The air conditioning system according to  claim 1 , in which no heat exchanger is provided for dissipating cooling or heating capacity of the refrigerant to a medium other than the heat transfer fluid. 
     
     
         6 . The air conditioning system according to  claim 1 , in which one throttle is controllable. 
     
     
         7 . The air conditioning system according to  claim 6 , in which an indoor unit is connected with the outdoor unit by means of three fluid lines and formed to withdraw heat from the heat transfer fluid in a cooling mode and supply heat to the heat transfer fluid in a heating mode. 
     
     
         8 . (canceled) 
     
     
         9 . The air conditioning system according to  claim 1 , wherein for driving the compressor a three-phase AC motor with adjustable speed is provided. 
     
     
         10 . (canceled)