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ET 101 
Simple Compression Refrigeration Circuit
Cooling and heating of the heat exchangers directly tangible
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ET 400
Refrigeration Circuit with Variable Load
Defined cooling load via controlled water temperature
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ET 411C
Compression Refrigeration Trainer
Compare different expansion elements
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ET 352
Steam Jet Compressor in Refrigeration Engineering
Cold production using heat
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ET 120
Cooling Using the Peltier Effect
Demonstration of the thermoelectric effect
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ET 122
Vortex Cooling Device
Cooling and heating using compressed air
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ET 480
Absorption Refrigeration System
Boiler operated alternatively by gas or electrically
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ET 350
Changes of State in the Refrigeration Circuit
Energetic analyses of the refrigeration cycle
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ET 351C
Thermodynamics of the Refrigeration Circuit
Compression refrigeration system for thermodynamic investigations
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ET 412C
Refrigeration System with Refrigeration and Freezing Chamber
Simulation of 18 faults
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ET 430
Refrigeration Training System with Two-Stage Compression
Injection intercooler, heat exchanger for additional refrigerant supercooling
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ET 441
Refrigeration Chamber and Defrosting Methods
Combined refrigeration and freezing chamber with temperature and humidity measurement
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ET 165
Refrigeration System with Open Compressor
Refrigeration chamber with transparent door and adjustable cooling load
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HM 365
Universal Drive and Brake Unit
Core component for experiments on various engines and machines
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ET 432
Behaviour of a Piston Compressor
Open 2-cylinder piston compressor from refrigeration
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ET 428
Energy Efficiency in Refrigeration Systems
Refrigeration system with 3 compressors in interconnected operation
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ET 431
Heat Exchangers in the Refrigeration Circuit
Effect of superheating and supercooling of the refrigerant on the cyclic process
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ET 426
Capacity Control in Refrigeration Systems
Examination of different capacity control methods
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ET 150.01
Refrigerant Filling and Evacuation Equipment
Accessory to evacuate and fill refrigeration systems
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ET 180
Pressure Switches in Refrigeration
Display of switching states via lamps
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ET 150.02
Tool Set
Case with tools for the assembly and maintenance of refrigeration systems
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ET 181
Adjustment and Operation of Expansion Valves
Recording of the control behaviour in the software
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ET 182
Secondary Controllers in Refrigeration Systems
Secondary controllers can be decommissioned individually for fault finding
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ET 460
Oil Return in Refrigeration Systems
Transport of lubricants soluble in refrigerant in refrigeration systems
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MT 210
Assembly & Maintenance Exercise: Refrigeration
Study project with high practical relevance for training in metal and electrical professions: set-up of a refrigeration system from individual components
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ET 499.01
Cutaway Model: Hermetic Refrigerant Compressor
Cutaway model of an industrial refrigeration compressor
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ET 499.30
Cutaway Model: Ceiling Air Cooler
Cutaway models of industrial components used in refrigeration engineering
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ET 192
Replacement of Refrigeration Components
Replace typical components of a refrigeration system: compressor, pressure switch, filter/drier, solenoid valve and expansion valve
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WL 320
Wet Cooling Tower
Principle of operation and characteristic variables of a wet cooling tower with forced ventilation
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WL 201
Air Humidity Measurement
Climatic chamber with adjustable humidity and transparent door
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ET 422
Capacity Control and Faults in Refrigeration Systems
Refrigeration and freezing chamber to investigate different methods for capacity control
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ET 900
Introduction to Refrigeration
Training system with interchangeable modules
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ET 910
Refrigeration Training System, Base Unit
Set-up of the most varied refrigeration circuits using modular component kits
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ET 910.10
Refrigeration Components for Basic Experiments
Set-up of simple refrigeration circuits
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ET 910.11
Refrigeration Components for Advanced Experiments
Set-up of more complex refrigeration circuits
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ET 915
HSI Training System Refrigeration and Air Conditioning Technology, Base Unit
Modern learning environment through hardware/software integration (HSI)
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ET 915.01
Refrigerator Model
Simple model of a domestic refrigerator for connection to the ET 915
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ET 915.02
Model of a Refrigeration System with Refrigeration and Freezing Stage
Series and parallel connection of evaporators
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HM 280
Experiments with a Radial Fan
Operating behaviour and characteristic variables of a radial fan; 2 interchangeable impellers
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HM 282
Experiments with an Axial Fan
Operating behaviour and characteristic variables
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HM 210
Characteristic Variables of a Radial Fan
Determination of volumetric flow rate via iris diaphragm or venturi nozzle
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HL 720
Ventilation System Trainer
Design and operation of a ventilation system; representation of the pressure curve within the ventilation system
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HL 710
Air Duct Systems
Planning and set-up of simple and complex air duct systems
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ET 102
Heat Pump Trainer
Utilisation of ambient heat for water heating
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ET 405
Heat Pump Trainer for Cooling and Heating Operation
Different operating modes can be set via valves
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ET 420
Ice Stores in Refrigeration
Industrial refrigeration system with ice store, dry cooling tower and wet cooling tower
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ET 915.06
Model of a Simple Air Conditioning System
Model of a simple air conditioning system for room cooling
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ET 915.07
Air Conditioning Model
Complete model of a full air conditioning system, outer air and recirculation operation possible
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ET 605
Air Conditioning Trainer System Model
Climatic chamber with latent and selective heat source as cooling load, recirculating and outer air operation
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ET 600
Conditioning of Room Air
Air conditioning system with steam humidifier
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ET 611
Air Conditioning System with Chamber
Chamber for comfort investigations, suitable for test persons to be inside
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ET 620
Air Conditioning and Ventilation System
Manual or automatic operation by PLC air conditioning controller
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ET 450
Automotive Air Conditioning Trainer
Typical vehicle air conditioning system for cooling the vehicle interior, use of components from automotive technology
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ET 630
Split System Air Conditioner Trainer
Modern air conditioning unit with heat pump function: cooling and heating
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ET 144
Electrical Installation in Refrigeration Systems
Design and wiring of typical electrical circuits from refrigeration
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ET 171
Electrical Connection of Refrigerant Compressors
Use of a real refrigerant compressor
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ET 340
Building Automation in Heating and Air Conditioning Systems
Operation and programming of a DDC for heating and air conditioning systems
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ET 930
Evaporator Control with Electronic Expansion Valve
Practical programming of a modern refrigeration controller
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ET 172
Electrical Faults Trainerin Refrigerant Compressors
Investigation of important electrical components from refrigeration
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ET 170
Electrical Faults in Simple Air Conditioning Systems
Simulation of a simple air conditioning system with compressor, fan and thermostat
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ET 174
Electrical Faults in Full Air Conditioning Systems
Simulation of the electrical circuit of a complex conditioning system with humidifying and heat pump function
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