1. Water cooler trainers come with storage water tank, comprising of evaporator coil of the cooling unit. The cooling unit includes hermetically sealed compressor, air-cooled condenser, a capillary tube as expansion device and an evaporator cell.

2. The stainless steel water tank comes with insulation on air Sides. A door is provided at the top. Cold water can be taken out from a top of the apparatus.  Water supply is controlled by a bail-operated top inlet. 

3. Users can study the theoretical and actual COP, power consumption, actual cooling capacity refrigerant flow and compressor volumetric efficiency of compressor.