ET 192 Replacement of refrigeration components
The replacement of a faulty compressor or other components of the refrigeration system are amongst the repeated activities of a mechatronics engineer for refrigeration. ET 192 allows for training in these processes. The consequences of incorrect procedures can be demonstrated.
The components are integrated into an operational refrigeration system. This allows for the practical testing of the functionality of individual components after replacement. The following activities must be carried out e.g. after replacing a compressor:
Refrigerant displacement (pump-down) into the condenser/receiver
(should this not be possible: siphoning off the refrigerant)
Disconnection of the compressor at the service valves
Disconnection of electrical connections
Compressor replacement, correcting oil level, if necessary
Reconnecting electrical connections
Reconnecting the compressor with the service valves
Evacuating the compressor and making the connection to the system
Compressor test run, checking for leaks and replenish refrigerant, if necessary
Checking the system pressures
To carry out the service tasks, the tool set ET 150.02 and the filling and evacuation equipment ET 150.01 are required.
- 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
Open refrigerant compressor
- drive power: 0,75kW
- refrigeration capacity: 1245W at -5°C/36°C
- maximum system pressure: 18bar
Pressure switch
- LP: -0,2…7bar
- HP: 10…32bar
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
120V, 60Hz, 1 phase
UL/CSA optional
- trainer from the GUNT practical series for the training of mechatronics engineers for refrigeration
- service exercises in refrigeration systems
- complete refrigeration circuit with open compressor, air-cooled condenser, receiver and air cooling evaporator
- replaceable components: compressor, filter/drier, pressure switch and solenoid valve
- required accessories evacuation equipment ET 150.01 and tool set ET 150.02
- overall arrangement on robust workbench
- refrigerant R134a, CFC-free
- 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