Carrier 50YQ is a single-package heat pump designed for both heating and cooling. It is suitable for residential and light commercial applications. The unit is equipped with a three-speed indoor fan motor, which allows you to adjust the airflow to meet your comfort needs. The 50YQ also features a built-in electric heater, which can be used to supplement the heat pump during periods of cold weather. The unit is easy to install and maintain, and it comes with a comprehensive warranty.