The Pioneer Diamante Essenza WYT-17 and WYT-20U are high-efficiency, entry-level ductless mini split systems designed to deliver reliable year-round heating and cooling with an average 17-SEER to 21-SEER rating. Ideal for bedrooms, home offices, and small spaces, it features whisper-quiet operation, a compact wall-mounted indoor unit, and a factory pre-charged outdoor condenser with R32 refrigerant. Inverter technology ensures consistent comfort while reducing energy waste, and maintenance is simple with front-access washable filters. The system includes a 16 ft. lineset, drain hose, remote control, and essential installation components-everything needed to complete core setup with ease.