The Panasonic PN Series is a range of non-inverter wall-mounted air conditioners utilizing R32 refrigerant. Available in capacities from 1.0HP to 2.5HP, these units offer cooling solutions for various room sizes. The R32 refrigerant is more environmentally friendly compared to older refrigerants. Models included are PN9WKH and PN18XKH, representing different horsepower/cooling capacity options within the series. These units are designed for efficient and reliable cooling.