Electrical Connection Of Refrigerant Compressors

Electrical Connection Of Refrigerant Compressors

Model: SR2015

Learning Objectives / Experiments

– read, understand, wire and test electric circuit diagrams for refrigerant compressors

– design and operation of electrical components of refrigerant compressors

* start-up capacitor

* start-up relay

* overheat protection

* automatic fuse

* pressure switch

* thermostat

– design and testing of a safety chain

– representation methods in electrical engineering

* symbols

* circuit diagrams

– safety aspects when handling mains voltage

Specification

[1] experimental unit from the practical series for the training of mechatronics engineers for refrigeration

[2] correct electrical connection of a refrigerant compressor

[3] refrigerant circuit with compressor, receiver, 2 valves and 2 manometers to investigate pressure switches on the delivery and intake sides

[4] electrical components for the start and operation of the compressor mounted clearly visible

[5] lab jacks and cables to connect the electrical components

[6] operation of a thermostat

[7] circuit diagram on the front panel for easy identification of the components

[8] refrigerant R134a, CFC-free

Technical Data

Refrigerant compressor

– power consumption: approx. 165W

Receiver: 0,8L

Manometer measuring ranges

– delivery side: -1…24bar

– intake side: -1…9bar

Pressure switch control range

– delivery side: 8…32bar

– intake side: -0,9…7bar

Thermostat: -5…35°C

Electrical components for the compressor

– start-up capacitor

– start-up relay

– overheat protection (bimetallic)

– automatic fuse

Dimensions and Weight

LxWxH: 920x410x660mm

Weight: approx. 45kg

Required for Operation

230V, 50Hz, 1 phase