What is a four-way solenoid directional valve?

Four-way electromagnetic reversing valve is used for cold and hot dual-purpose air conditioner under the artificial operation and instruction, changing the direction of refrigerant flow, so as to achieve the purpose of hot and cold conversion .

( 1 )The function of the four-way solenoid directional valve

If the condenser is inside the outdoor evaporator, the air conditioner is in a refrigeration state. If the condenser is in the room and the evaporator is outside, the air conditioner is in a hot state. Both indoor and outdoor units and pipes are installed and can not be exchanged for refrigeration or heating. According to the block diagram of the refrigeration cycle, the functional conversion of the evaporator and the condenser can be realized by reverse circulation of the refrigerant. But the compressor can not make the refrigerant reverse cycle, so we use the four-way valve to change the refrigerant, control the air-conditioning refrigeration and heating state conversion.

( 2 ) Refrigeration.

The  four-way solenoid valve is composed of a solenoid valve and a reversing valve.

When the cold heat pump switch is shifted to the refrigeration position, the power supply of the electromagnetic coil of the electromagnetic guiding valve is cut off, and the electromagnetic guiding valve is kept after the left shift the right valve is closed, the left valve is opened and communicated with the middle hole.

This article is from Allicdata Electronics Limited.