Zhejiang Haihong Hydraulic Technology Co.,Ltd.
The compressor, outdoor fan, four-way valve and negative ion generator are all powered by AC220V, so the AC220V can be controlled by the relay to control the operation of each part.
R1 is a varistor for overvoltage protection. SI1 is a fuse. The socket J2 is the AC220V output terminal, and the external transformer is used to step down the AC220V. After being stepped down, the power module is connected to the power module to obtain DC12V and DC5V respectively.
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