Home           Products           Company           Contact us     
Theory of Machines and Properties of Materials
Mechatronics
Thermodynamics, Heating and Sanitary Systems
> Fundamentals of Thermodynamics
> Applied Thermodynamics
> Power Engines and Machines
> Internal Combustion Engines
> Refrigeration and Air Conditioning
> Heating and Ventilation
> Sanitary Systems
Fluid Mechanics and Hydrology
Process Control and Process Engineering
Overviews
Products  |  Thermodynamics, Heating and Sanitary Systems  |  Refrigeration and Air Conditioning  |  ET 172
ET 172 Refrigerant Compressor Fault Simulator Show data sheet (pdf file) Print page
Technical Description
The ET 172 table unit is part of a series designed for training in refrigeration engineering. The unit addresses electrical faults as they can occur in the operation of a commonly available refrigerant compressor. The faults are simulated using pushbuttons on the front panel of the unit. Other components as, a switch box with the starting relay, running capacitor, starting capacitor and motor protection circuit breaker are also arranged on the front panel. The measured points in the electrical circuit are accessed using laboratory sockets. A circuit diagram printed on the front panel provides information on the circuit.
A multimeter is included for fault-finding.
Learning Objectives / Experiments
· Familiarisation with the electrical connections on
  a refrigerant compressor
· Familiarisation with electrical circuit diagrams
· Function and operating behaviour of electrical
  components
· Finding and identifying 15 different faults
· Measurements on component, some at mains
  voltage
Features
Demanding experimental set-up for the simulation of electrical faults in a refrigerant compressor
Benchtop unit for exercises in small student groups
Alternative products
ET 144 -- Refrigeration Wiring Skills Trainer
ET 170 -- Domestic Air Conditioning Controls
ET 171 -- Compressor Controls Trainer
ET 174 -- Industrial Air Conditioning Controls
ET 340 -- HVAC Simulator
ET 930 -- Trainer Refrigeration Control
Specification
[1] Benchtop unit for fault simulation and fault finding on the electrical connection of a refrigerant compressor
[2] Refrigerant compressor
[3] All relevant components arranged on front panel
[4] Fault simulation using push buttons
[5] External multimeter for fault finding
[6] Starting and running protection devices fitted in transparent switch box
[7] Circuit diagram printed on front panel
[8] 230V, 50Hz, 1 phase
Technical Data

Refrigerant compressor for R22: refrigerating capacity: 1679W at 5/35°C, power consumption: 584W at 5/35°C
Battery-operated multimeter - measuring ranges:
Voltage DC: 200mV...1000VDC
Voltage AC: 200mV...700VAC
Current: 200µA...10A
Resistance: 200Ω...200MΩ

Capacity: 2nF...20µF
Dimensions and Weight
l x w x h : 900 x 420 x 650 mm
Weight : approx. 35 kg
Connections
230V, 50Hz, 1 phase
Scope of Delivery
1 benchtop unit, 1 multimeter, 2 laboratory cables, 1 instruction manual
Order Details
061.17200 ET 172 Refrigerant Compressor Fault Simulator
Print
© 2005 G.U.N.T. Gerätebau GmbH