The 9,000- (9RLS3), 12,000- (12RLS3), and 15,000- (15RLS3) Btu model wall-mounted ductless split systems provide up to 33 SEER and 14.2 HSPF. All of the inverter wall-mount systems are available as quietly operating split-system heat pumps. The units offer nearly full heating capacity down to minus 5°F ambient and cooling operation down to 14°F. Refrigerant pipe lengths can reach 66 feet between the evaporator coil and the condensing unit. Standard features include a wireless remote control, ion-deodorizing filters, a sleep timer, a 24-hour timer, dry mode, a four-way auto louver, and an auto mode. Fujitsu’s ESP (energy saving program) comes standard on these Halcyon systems, which conserve energy even when the user isn’t paying attention.