The main composition of KR-201 is a window type air conditioner just like real one in our daily life. What makes it special is that students are able to observe the operation of the internal components and the state of the refrigerant while the air conditioner is running.  

     From the front panel, there are four refrigerant sight glasses, which provide students an excellent view to observe the state of the refrigerant before and after passing through four major elements Compressor, Condenser, Capillary Tube, and evaporator.

     Students can also use built-in gauges / meters to draw the Mollier Chart and so as to understand the performance of this air conditioner.  Combining the observation of refrigerant state during different phase of the refrigeration cycle, KR-201 helps students to understand the operating principle of the window type air conditioner easier and faster.

    condenser, evaporator, and capillary tube.

5. Provide voltmeter and ammeter at front panel to monitor instant system power.

6. Provide high and low pressure gauge at front panel to monitor instant inlet / outlet pressure of the compressor.

7. Provide a 6-channel temperature meter at front panel to instantly display different refrigerant temperature before and

    after passing through compressor, condenser, evaporator, and capillary tube.

8. Provide a temperature meter at the front panel to display the temperature from a moveable sensor.

9. A Mollier Chart is clearly printed on the front panel for quick reference.