Method of operating a refrigeration system

Cooling installation, of the type comprising a refrigeration circuit, which works with a cooling medium, with a compressor (5), an injection valve (6) and an evaporator (1, 2), being compressed cooling medium in gaseous state, in the compressor (5), then is liquefied by cooling, liquid cooling medium is decompressed in the injection valve (6) and then is returned to the gaseous state in the evaporator ( 1,2), means being provided (13) to achieve stable conditions in the regulating circuit and the cooling circuit before the injection valve (6), in order to maintain constant temperature liquid cooling medium, characterized in that the means for maintaining constant temperature liquid cooling medium ahead of the injection valve (6) comprise a conduit (13) for the liquid, which is surrounded by a storage mass.