The TU-701 Table-Top Heat Pump Trainer is an ideal entry-level training unit that offers hands-on experience with the fundamentals of heat pump operation. Designed for ease of use and clear visual learning, it allows HVAC/R students to observe refrigerant movement and the function of the reversing valve, which is prominently displayed on the front of the unit. The trainer visibly demonstrates the switch between hot and cold air, making it a highly effective tool for teaching heat pump theory, wiring, piping, and basic controls.