Control circuits related to compressor, four-way valve and operation
Source: InternetPublisher:已注销 Updated: 2021/09/04
The compressor, outdoor fan, four-way valve and negative ion generator are all powered by AC220V, so the operation of each part can be controlled by controlling the on and off of AC220V through relays.
R1 is a varistor for overvoltage protection. SI1 is the insurance tube. Socket J2 is the AC220V output terminal. It is connected to an external transformer to step down the AC220V and then connected to the power module to obtain DC12V and DC5V respectively.
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