The Panasonic PN-XKH PN Series is a range of non-inverter air conditioners utilizing R32 refrigerant. Available in capacities from 1HP (PN9WKH/CS-PN9WKH) to 3HP (PN18XKH), these models offer cooling solutions for various room sizes. As non-inverter models, they operate at a fixed speed, providing consistent cooling performance. The use of R32 refrigerant contributes to a reduced environmental impact compared to older refrigerants. Common models include the PN9WKH, PN12WKH, and PN18XKH, also identified by their CS prefixes.