Yichwan control boards for air source heat pumps on the counter

Photo: Mariusz Młynarczyk / CloudAir.tech

A Yichwan inverter control board with capacitors and a heat sink lies on the front counter, with more boards on the shelves behind. Posters describe an "Air source heat pump with EVI variable speed single compressor control board" and a "Building HVAC centralized control solution", alongside the company's product overview and compressor brand references.