| 摘要 |
The invention relates to a method of controlling a horizontal refrigerated display cabinet (1), said cabinet (1) comprising at least one evaporator (2) belonging to a steam compression refrigerant circuit and ventilation means suitable to generate a flow of air which circulates between the evaporator (2) and the display compartment of said cabinet (1). The method is characterised by the fact that it keeps the evaporator (2) constantly active with generation of cooling capacity and that it comprises the following operating steps: a) fixing a set temperature for the air temperature leaving the evaporator (2); b)measuring over time the temperature of the air flow leaving the evaporator (2); c) measuring over time the evaporation pressure of the refrigerant fluid at the evaporator (2); wherein the control of the cabinet is conducted by continuously regulating the evaporation pressure of the refrigerant fluid at the evaporator (2) depending on the measured temperature values of the air so as to have the air flow leaving the evaporator (2) at a stable temperature at the set value in regular functioning conditions of the cabinet (1). The invention also relates to a refrigerated display cabinet (1) controllable by such method. |
