This trainer is designed to demonstrate the operation and performance of Variable Refrigerant Volume (VRV) type air conditioning through fully operational unit including all the basic components as found on VRV. In this room like trainer, students and technicians can follow the refrigeration cycle, explore the lay out and function of all major components and controls, and perform servicing and troubleshooting exercises through an integrated control panel. The whole system is mainly consists of two units of trainee work station each station Comprising of an inverter condenser ,floor trap tray, wall mounted evaporator, floor standing evaporator and ceiling cassette evaporator.