completed refrigeration design

Below is a diagram of the basic refrigeration design. Upon some HVAC engineer's advice, a switching junction was placed upstream from the TEC to allow refrigerant to flow through only one evaporator at a time while a one-way junction valve was placed downstream to allow suction to evacuate oil from both evaporators and prevent oil starvation.


This design allows us to use one compressor to cool two different areas at different times.