Replacement of refrigeration components Service and repair exercises: replacement of compressor, pressure switch, filter/drier, solenoid valve and expansion valve Features - practical service tasks in refrigeration systems - replace typical components of a refrigeration system: compressor, pressure switch, filter/drier, solenoid valve and expansion valve - refrigerant displacement, replacement, evacuation, filling and siphoning off Learning objectives/experiments - familiarisation with and carry out basic activities for the servicing of refrigeration systems - replacement of -- compressor -- pressure switch -- filter/drier -- solenoid valve -- expansion valve - refrigerant displacement (pump-down) - mechanical and electrical assembly and disassembly of components - replenish refrigerant and compressor oil - leak test - compressor test run - adjustment of expansion valve and pressure switch Specification [1] trainer from the GUNT practical series for the training of mechatronics engineers for refrigeration [2] service exercises in refrigeration systems [3] complete refrigeration circuit with open compressor, air-cooled condenser, receiver and air cooling evaporator [4] replaceable components: compressor, filter/drier, pressure switch and solenoid valve [5] required accessories evacuation equipment ET 150.01 and tool set ET 150.02 [6] overall arrangement on robust workbench [7] refrigerant R513A, GWP: 631 Technical data Open refrigerant compressor - refrigeration capacity: 450W at -5°C/40°C and 1450min-1 - maximum system pressure: 18bar Pressure switch - LP: -0,2...7bar - HP: 10...32bar Refrigerant - R513A - GWP: 631 - filling volume: 1kg - CO2-equivalent: 0,6t 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 1400x750x1650mm Weight: approx. 150kg