| 摘要 |
<p>In a refrigeration apparatus having a fresh food (above freezing) compartment 12 and a freezer compartment 14 with respective evaporators 18,20 connected to a common compressor 22 and condenser 16, refrigerant being fed to one evaporator or the other via a corresponding one of valves 32,34 controlled by an electronic circuit 39 which receives signals from temperature sensors 54,56 in the respective compartments, the circuit (a microprocessor) is so arranged that when both sensors demand a supply of refrigerant, priority is given to the evaporator 18 of the fresh food compartment, but only for a certain period of time. At the end of the period, even if the fresh food compartment has not achieved its set temperature, refrigerant is diverted to the evaporator of the freezer 14. The circuit control program has special features for when the apparatus is initially switched on, and provides time delays to stop ON-OFF cycling of the compressor. <IMAGE></p> |
