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The specific working process of the circuit of the supermarket refrigerated showcase
The refrigeration operation of the supermarket refrigerated showcase. The temperature setting range of refrigeration operation is 20~30C. When the indoor temperature is higher than the set temperature, the electronic chip sends a command, the compressor relay is closed, and the signal is sent out through the signal connection of the indoor and outdoor units, so the supermarket refrigerated showcase The compressor and outdoor fan are running. The indoor fan is always running during cooling operation, and high, medium and low wind speed can be selected arbitrarily. When the indoor temperature in the supermarket refrigerated showcase is lower than the Satin temperature, the compressor and outdoor fan will stop running.
supermarket supermarket refrigerated showcase wet run. When the dehumidification working mode is selected, the air conditioner first cools to make the indoor temperature reach the temperature specified by the remote control, and then switches to the dehumidification working mode. When dehumidifying, the indoor fan, outdoor fan, and compressor operate at the same time. When the indoor temperature drops to the set temperature, the outdoor fan and compressor stop, and the indoor fan continues to operate for 30s before stopping. Supermarket supermarket refrigerated showcase After the fan turns, the room temperature will slowly rise, but the relative temperature has become lower. After 5nzin, turn on the indoor and outdoor units at the same time, and the cycle goes on. Compared with the normal refrigeration state, the room temperature decreases slowly during dehumidification operation, but the moisture in the air can be condensed into water droplets on the evaporator and discharged. During dehumidification operation, the indoor fan is automatically set to low-speed gear, and the function keys such as sleep and temperature setting are all valid. If the remote control sends out a signal to change the wind speed, the air conditioner can receive the signal, but it will not execute it.
supermarket supermarket refrigerated showcase to send wind and transport bamboo. When the air supply is running, the indoor fan can be arbitrarily selected for automatic, high, medium, and low wind speed, but the outdoor unit does not work.
supermarket supermarket refrigerated showcase heating operation. After the air conditioner heating operation, it can be between 14 and 30. 1 in the range of C. C is the unit to set the room temperature. When the indoor temperature is lower than the set temperature, the compressor relay and outdoor fan relay are closed, and the air conditioner starts heating operation. In heating operation, when the outdoor unit condenser temperature is less than (or equal to) 20C, the indoor fan stops; when the condenser temperature is higher than 28C, the indoor fan runs.
In addition, in order to improve the heating efficiency, the computer chip will determine whether the air conditioner needs to be defrosted according to the temperature of the outdoor copper pipe and the operating conditions of the compressor. Resume work after the defrost is over.
supermarket supermarket refrigerated showcase runs automatically. After the air conditioner enters the automatic operation mode, the indoor fan runs at an automatic wind speed, and the chip automatically selects cooling, heating or air delivery according to the received external information.
This article is provided by refrigerated showcase supermarket refrigerated showcase
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