 Panasonic's inverter provides optimum power control and extremely efficient operation by modifying the power supply frequency. The result is fast, flexible operation that uses less energy. The inverter constantly adjusts the compressor rotation speed to provide peak performance at all times. Once the set temperature is achieved, the inverter air conditioner continues to operate with minimum power. The 00PET0U0 single zone mini split system includes an indoor Suspended Ceiling Unit (S-00PT0U0) and the U-00PE0U0 outdoor compressor. This system offers a cooling capacity of 00,000 BTUs as well as a 00,000 BTU heat pump. The 00PET0U0 00000 BTU unit boasts a SEER Rating of 00.0 and an EER of 0.00. This system will cool a space that is about 0000 - 0000 sq. ft. Panasonic's ECONAVI Technology is available as an add-on option to this system. ECONAVI detects human activity and adjusts the temperature output of your mini split. This technology either raises or lowers the set temperature depending on the activity level detected in your space. Airflow direction is also adjusted depending on where the air is needed. By adding a sensor (CZ-CENSC0) and a Programmable Wired Controller (either CZ-RTC0 or CZ-RTZ0) the technology is yours! The controller and sensor are each sold separately. And talk about reliability, with its low ambient heating capability, you will never be too warm or too cold. With built-in low ambient cooling, you can still run your air conditioner with outdoor temperatures as low as 0°F. Panasonic Mini Splits offer low ambient heating capabilities sufficient for many areas of the country during the winter. The 00PET0U0 will provide heat even when outdoor temperatures fall as low as -0°F. For more efficient operation in colder temperatures, the installation of a wind baffle (sold separately) is recommended. The U-00PE0U0 outdoor unit has 0 fans and requires 0 wind baffles. Panasonic mini split systems feature an Infrared Wireless Remote with an easy to read LCD Display (standard). For complete automatic control from anywhere in the room, the remote gives the user the ability to adjust and set the temperature, louver control, fan speeds, timer and more. To help ensure comfort levels with regard to both temperature and humidity levels, Panasonic mini splits also feature microprocessor controlled operation. With Automatic Heat and Cool Changeover, once you set your desired temperature and functions, cooling and heating will automatically change in accordance to the set temperature. If the room temperature is higher than your set temperature, the air conditioner will kick on. If the room temperature is lower than your set point, the heat pump will kick on! Other features include: a 0 speed fan plus auto, 0 days / 0 events, Automatic Vertical Air Deflection and a Washable Air Filter. All Panasonic Mini Split Systems include Automatic Restart after Power Failure. This unit must be installed by a qualified, licensed HVAC technician. A standard part warranty is included. You can upgrade to a 0 year labor warranty at the time of purchase. 