What does the IPX4 Waterproof Rating of an Air Source Heat Pump Mean?

The IPX4 waterproof rating of an air source heat pump, the full name is "Ingress Protection Rating 4", IPX4 means that the device can prevent splashing water droplets from entering, but it is not completely waterproof. Specifically, the IPX4 waterproof rating means that the device can withstand water splashes from all directions, but cannot withstand greater water pressure or long-term immersion in water. This rating is usually used for equipment that needs to be used outdoors or in humid environments, such as air source heat pumps, to ensure that it can still work properly under these conditions.

The test method for the IPX4 rating includes spraying water on the device from all directions to verify its protection capabilities. Therefore, an air source heat pump with an IPX4 waterproof rating can resist water splashes to a certain extent, but is not suitable for environments where it is completely immersed in water or subjected to high-pressure water flow, while some higher waterproof ratings, such as IPX7-rated equipment, can be completely immersed in water at a certain depth and time without damage.

If you want to choose a better air source heat pump, you can compare and understand it from its cop, iplv (H), heating capacity, input power, low-temperature heating capacity, noise, corrosion resistance and other aspects.