ET 413C Domestic Refrigeration Trainer / PC
1 switchable power meter (P, U, I),  2 pressure transducer,  3 compressor,  4 temperature display with selector switch,  5 thermostat switch for refrigerating chamber,  6 refrigerating chamber with room temperature indicator,  7 filter/drier,  8 two-stage condenser,  9 intake and pressure side manometer,  10 system diagram