Industry-leading COP and System Flexibility Highly efficient, ultra-quiet operation, low power consumption... Our Power Multi systems utilize the innovative technologies developed for the Power Inverter series, giving Power Multi units the same industry-leading COP (co-efficient of performance) classification. These highly efficient systems offer the merits of flexible installation, energy savings and ultra-quiet operation, all combined with the performance reliability and quality promised in the Mitsubishi Electric name. High Coefficient of Performance (COP) The latest energy-saving technologies developed for the Power Inverter Mr. Slim Series are adopted for the Power Multi Series too. COP ratings are among the industry's best. Silent Operation When set at the low operating mode, the outdoor unit automatically switches to the "Low-noise Mode" and operates more quietly. Connected to the latest indoor units, the system is capable of offering a comfortable, silent interior space where occupants are not even aware of air conditioner operation. Choice of Indoor Units Select the best indoor unit to match room requirement and design needs. We have over 27 models in 10 type variations to choose from. Easy Installation A flare-type connector is adopted for branch boxes, thereby eliminating the need for welding and contributing to safer, easier installation procedures.