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Thank you to everyone who answered. The AC unit installed on my site is made by Daikin, and it has an IP rating of IPX4. Other AC manufacturers like Samsung, LG, and Mitsubishi also have units with the same IPX4 rating. As far as I have checked, there seems to be no clear requirement for the...

Hello, My client insists that an outdoor air conditioner unit must comply with an IP rating, but I cannot find any standard or requirement for this equipment. I know that the manufacturer may have their own standards for weather resistance, but as far as I am aware, there is no specific...