Products  |  Thermodynamics, Heating and Sanitary Systems  |  Refrigeration and Air Conditioning  |  ET 915
ET 915 Base Condensing Unit Show data sheet (pdf file)
Technical Description
The benchtop unit includes the components of a refrigeration unit, which increases the pressure of the working medium and recools it. These are the compressor and the condenser. The other components required for a refrigerant circuit, such as an evaporator and expansion valve, are located in the auxiliary modules. Depending on the aim of the experiment, the base unit and the auxiliary module together form a complete refrigeration unit. The base unit and the auxiliary module are linked with self-locking couplings. Solenoid valves, which are controlled with the software, permit various operating modes. Different auxiliary modules are available: ET 915.01 Single Chamber Refrigerator, ET 915.02 Double Chamber Refrigerator, ET 915.04 Air Conditioner, ET 915.06 Domestic Air Conditioner, ET 915.07 Climatisation Module.  
Learning Objectives / Experiments
In conjunction with the auxiliary modules, basic experiments from the fields of air conditioning and space air conditioning can be carried out. The instructional software contributes a great deal to the understanding of the fundamental principles. The software features:
- Schematic representation of the experiments
  showing the measuring points and values
- h-ω diagram and p-h state diagram 
- Printout of screens
- Graphical representation of measured values as a
  function of time
- Experimental results can be saved
- Explanation screens of theory
Features
* Completely equipped basic module1
* Data acquisition card and learning software for a
  complete course in refrigeration technology1
* Processing measured data in a PC1
* Linkage of the auxiliary modules with self-locking
  Schrader valves
Available accessories
ET 915.01 -- Single Chamber Refrigerator Module
ET 915.02 -- Double Chamber Refrigerator Module
ET 915.04 -- Air Conditioner Module
ET 915.06 -- Domestic Air Conditioner Module
ET 915.07 -- Climatisation Module
Alternative products
ET 921 -- Domestic Air Conditioning Simulator
Specification

[1] Basic module for a comprehensive course on refrigeration and air conditioning formed with auxiliary modules
[2] Condensing unit consisting of compressor and condenser
[3] Manometer for refrigerant with temperature scale, intake side -1...9bar, delivery -1...24bar
[4] Refrigerant R134a, CFC-free
[5] Refrigerant collector: 0.9ltr
[6] Supplied with sight glass, filter/drier and safety device pressostat
[7] Software with illustration of h-w and p-h state diagrams
[8] Connection between base unit and module via self-sealing Schrader valves
[9] 230V, 50/60Hz, 1 ph. or 120V, 60Hz, 1 ph.

 
Technical Data

Condensing unit

- refrigerating capacity 340W at 0°C/32°C


Electronic sensors
- 4 temperature sensors: -40...150°C
- 3 pressure transmitters: 1x intake: -1...9bar;

  2x delivery side: -1...15bar


Software under Windows XP

 
Dimensions and Weight
l x w x h : 880 x 620 x 360 mm
Weight : approx. 50 kg
Connections
230V, 50/60Hz, 1 ph. or 120V, 60Hz, 1 ph.
Scope of Delivery

1 base unit, completely assembled and filled with

  refrigerant

1 data acquisition card with software

1 instruction manual
Order Details
061.91500  ET 915  Base Condensing Unit
© 2005 G.U.N.T. Gerätebau GmbH