SR20272 Refrigeration Components for Basic Experiments Vocational Training Equipment Refrigeration Laboratory Equipment

Learning Objectives / Experiments

– Design of different simple refrigeration circuits

– Design, operation and adjustment of components

* sight glass with filter/drier

* flow meter

* delivery and intake manometer

* assembly aid

* superheater

* pressure-controlled expansion valve

* thermostatic expansion valve

* 3-pin circuit breaker

* electric two-point thermostat with switch hysteresis

– Read and understand technical drawings and operating instructions

– Fault finding

Specification

[1] Components for the set-up of simple refrigeration circuits in conjunction  

[2] Heat exchanger as superheater

[3] 3-pin circuit breaker

[4] Assembly aid: 4-port directional valve with sight glass

[5] Sight glass with humidity indicator

[6] Pressure-controlled expansion valve

[7] Thermostatic expansion valve

[8] 2 thermostats with different temperature ranges

[9] Components mounted on plates ready to connect

[10] Abrasion-proof symbols and labels on plates

Technical Data

Pressure-controlled expansion valve

– pressure range: 1…7bar

Thermostatic expansion valve

– evaporation temperature: -45°…20°C

– valve insert rated capacity: 0,3kW

Circuit breaker, 3-pin: 3kW

2 electric thermostats

– -5…25°C

– -25…5°C

Heat exchanger

– capacity: approx. 2.5kW at -10°C evaporation

temperature

Measuring ranges

– pressure, high pressure side: -1…24bar

– pressure, low pressure side: -1…9bar

– flow rate: 3…41kg/h

Dimensions and Weight

Plate height: 297mm

Weight: approx. 20kg