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-7℃ room when display cooler is working
When display cooler is working, -7℃ room has priority for refrigeration, but in case of a drop, the priority refrigeration of -7℃ room is cancelled:
①The refrigerating room reaches the shutdown temperature;
②The refrigerating room is connected to work 3 No shutdown for hours;
③The compressor is connected to work for 5 hours without shutting down and shuts down, the display cooler returns to the refrigerator compartment and the sensor drops to 2℃ or the system enters the quick freezing state;
⑤The sensor is faulty. In the
quick-freezing state, the compressor is connected and operated, and the solenoid valve switches the working state of the refrigerating room and the -7°C room. The quick-freezing state is 12 hours. In the quick-freezing state, if the refrigerating temperature reaches the shutdown, but the -7℃ room requires to be turned on, the compressor will not stop, and the solenoid valve will be energized to connect the capillary 2, so that the refrigerant only flows through the -7℃ evaporator and the freezing evaporator for cooling. In addition, in the quick freezing state, if the compressor runs continuously for 5 hours without stopping the solenoid valve without electricity, the computer board will force the refrigerating room to shut down for /8 minutes, and then turn it on when the temperature felt by the back evaporator reaches 4°C. In the quick freezing state, the heating wire is always in the heating state, but when the refrigerated evaporator sensor is higher than 2 ℃, the heating is stopped. When the ambient temperature is higher than 8℃, the stop point of the display cooler evaporator sensor is fixed at -23℃, when the ambient temperature is lower than 8℃, the stop point of the refrigerated evaporator sensor is fixed at -25℃, within the quick freezing setting time , The start of the compressor is still controlled by the refrigeration sensor. Every time the compressor stops, it does not exit the quick freezing state. When the temperature of the refrigerating evaporator sensor is higher than the start-up point, the compressor restarts. After reaching the set time of quick freezing, it will automatically exit the quick freezing state and enter the normal control state. In the quick-freezing state, the refrigerating temperature cannot be set, and the temperature of the -7℃ room can be adjusted.
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