Basic Heat Pump Demonstrator

Basic Heat Pump Demonstrator

This clearly laid out model demonstrates the principle of operation of a simple heat pump.
Heat is transferred from one cylinder to another via heat exchange coils.
The trainee can feel the "cold" and the "heat".
The unit is equipped with 2 large manometers for displaying the refrigerant pressures to indicate the temperatures in the water tanks.
The refrigerant used is environmentally friendly.
Functional model of a water-to-water heat pump
Coiled pipe evaporator/condenser, Cu Piston compressor, thermostatic expansion valve, pressostat, sight glass, 2 manometers  
2 thermometers to determine the water temperatures in the tanks, -10...50°C
Refrigerant R134a, CFC-free
Components bolted to metal sheet 220V, 50Hz, 1 phase Piston compressor:  power consumption: 97W at -10/32°C,  refrigerating capacity: 222W at 5/32°C
Pressure switch: max.  temperature difference that can be reached: 50°C Manometer with temperature scale for R134a.  
Temperature scale: -60...80°C.
Measuring ranges: -1...9bar / -1...24bar.