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Products | Thermodynamics, Heating and Sanitary Systems | Refrigeration and Air Conditioning | ET 171

ET 171

Compressor Controls Trainer

Technical Description

The benchtop unit was designed for electrical training for refrigeration system installers and is particularly suitable for exercises in smaller groups. The electrical connection of a commercially available refrigerant compressor using a circuit diagram is covered. The starting, protection and control devices necessary for safe operation are arranged on the front panel of the unit. Test points provide convenient access for measuring the electrical circuit.

Learning Objectives / Experiments

· Familiarisation with electrical circuit diagrams
· Function and characteristics of electrical components
· Wiring in accordance with circuit diagrams
· Layout and triggering of a safety contol system

Features

Trainer for training in refrigeration engineering
Electrical connection of a refrigerant compressor

Alternative products

ET 144 -- Refrigeration Wiring Skills Trainer
ET 170 -- Domestic Air Conditioning Controls
ET 172 -- Refrigerant Compressor Fault Simulator
ET 174 -- Industrial Air Conditioning Controls
ET 340 -- HVAC Simulator
ET 930 -- Trainer Refrigeration Control

Specification

[1] Benchtop unit on the electrical connection of a refrigerant compressor
[2] Simulation of a refrigeration circuit with compressor, collector and 2 manual valves
[3] Electric starting devices, electric motor protection and safety devices for compressor operation
[4] Front panel with controls and displays, circuit diagram and laboratory sockets
[5] Delivery and intake side of compressor fitted with adjustable pressostats and manometers
[6] CFC-free refrigerant R134a
[7] 230V, 50Hz, 1 phase

Technical Data

hermetic piston compressor: refrigerating capacity: 252W at 0/32°C

Pressostats
Delivery side trigger pressure adjustable: 8...32bar, switching differential adjustable: 4...10bar
Intake side trigger pressure adjustable:
-0.2...7.5bar, switching differential adjustable: 0.7...4bar
Manometer: -1...9bar / -1...24bar
Thermostat: -5...35°C

Dimensions and Weight

l x w x h : 900 x 400 x 650 mm
Weight : approx. 35 kg

Connections

230V, 50Hz, 1 phase

Scope of Delivery

1 benchtop unit, 1 set of laboratory cables, 1 instruction manual

Order Details

061.17100 ET 171 Compressor Controls Trainer