Patent ID: 7992396

Claim:
A method of analysing a refrigeration system comprising at least one compressor, at least one condenser, at least one control unit and at least two refrigeration entities, each having a separate refrigeration volume, and each comprising at least one evaporator controlled by the control unit, each evaporator being adapted to be in an active state in which a flow of refrigerant is allowed to pass across an evaporating surface, and in an inactive state in which such a flow is prevented, the method comprising the steps of: obtaining information at the control unit relating to the gas production provided by the evaporators as a function of time, wherein the information relating to the gas production provided by the evaporators comprises information relating to the number of active evaporators as a function of time, analysing the obtained information within the control unit, the analyzing step comprising obtaining a representative of the variance of the function of time, based on the analysing step, determining whether or not two or more of the evaporators are running in a synchronized manner, wherein it is determined that at least two evaporators are running in a synchronized manner if the representative of the variance exceeds a predefined threshold value, sending at least one control signal when it is determined that two or more evaporators are running in a synchronized manner, and adjusting at least one run parameter, wherein the adjusting step is selected from the group consisting of: changing at least one of a cut-in temperature and a cut-out temperature for at least one evaporator, thereby changing the duration of the active and/or inactive periods for the at least one evaporator, said at least one evaporator reaching the cut-in temperature and/or the cut-out temperature before the other evaporator, lowering a reference suction pressure of the compressor for a period of time, and applying settings to a plurality of refrigeration entities having identical temperature requirements, the settings comprising a lower temperature limit and an upper temperature limit, wherein an evaporator of the corresponding refrigeration entity is switched to an inactive state in case an air temperature of the refrigeration entity decreases below the lower temperature limit, and the evaporator is switched to an active state in case the air temperature increases above the upper temperature limit.