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Supermarket refrigerated showcase dual temperature dual control electrical system working principle
author: supermarket refrigerated showcase category: walk-in display coolers Views: 571Time: 2016-08-22
supermarket refrigerated showcase dual temperature dual control electrical system working principle
dual temperature dual control direct cooling supermarket refrigerated showcase electrical system, compared with ordinary electrical systems, multi-freezing room temperature And solenoid valve (referred to as solenoid valve). The refrigerating room temperature controller not only controls the temperature of the refrigerating room, but also controls the working state of the solenoid valve. That is, the control principle is: when the temperature of the refrigerating room does not reach the set value, the refrigerating room temperature controller connects the compressor circuit and cuts off the solenoid valve circuit at the same time, and the solenoid valve loses power and connects to the refrigerating capillary tube, so that the refrigeration and freezing are simultaneously cooled. When the temperature of the refrigerating compartment reaches the set value, the refrigerating room temperature controller cuts off the compressor's power supply circuit, turns on the solenoid valve circuit, and the solenoid valve is energized and closed to cut off the cold storage capillary tube and turn on the freezer capillary tube to make supermarket refrigerated showcase free The room is cooled separately.
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