Shenling R290 Air Source Heat Pump has energy class A+++ and the minimum operation ambient temperature is -25℃， and the maximum outlet water temperature is 75℃. It provides heating, cooling, and domestic hot water functions together to meet domestic families’ needs. It has MCS, Keymark, CE, and so on certifications. By incorporating the full-color LCD display controller, wifi smart control, smart grid, and so on.