Air conditioning system model ET 605

Air conditioning system model

Type: ET 605
Name: Air conditioning system model


Air conditioning technology is a key topic in building services engineering. For this reason air conditioning technology plays an important role during the training of skilled workers and engineers.

The clear trainer ET 605 represents a complete air conditioning system with an air duct and a climatic chamber. The main components of the air conditioning system are the air cooler with condensing unit, fan, steam humidifier and air heater. Three motorised ventilation flaps control the air distribution in the air conditioning system. The climatic chamber is equipped with two different heat sources (wet and dry). Temperature and relative humidity are measured at relevant points in the air duct and displayed digitally. For the refrigeration circuit two manometers with integrated temperature scale and a flow meter provide all relevant measurements.

ET 605 is operated manually. A key feature of the air conditioning system is that it is fully ready for various automation solutions. The user can thus focus on this important topic during a lesson.
The following solutions are available:

  • Software controller ET 605.01
  • Industrial air conditioning controller ET 605.02
  • Signal connection box ET 605.03 for the integration of an individual user solution.

Technical details

  • model of an air conditioning system with outer air and recirculating operation
  • air duct with transparent front
  • air duct with fan, air cooler, humidifier, flaps, air heater and sensors
  • chamber with wet (latent) and dry (sensitive) heat source as cooling load
  • motorised flaps for recirculating and outer air operation
  • process schematic with signal lamps
  • air conditioning system ready for different automation solutions: 4 data cable connections to integrate the accessories
  • refrigerant R134a, CFC-free
  • Technical data

    Air-cooled condensing unit

    • power consumption: 140W at -10°C
    • refrigeration capacity: 320W at +5/40°C


    • heating power: 400W

    Air heater

    • heating power: 360W

    2 heaters in the chamber as cooling load

    • power output: 0…250W each, freely adjustable

    Flow cross-section of the air duct

    • WxH: 155x155mm

    Measuring ranges
    • temperature: 0…50°C
    • rel. humidity: 10…90%
    • power consumption: 0…600W (condensing unit)
    • power: 2x 0…300W (cooling load)
    • pressure: -1…9bar / -1…24bar (refrigerant)
    • Dflow rate: 1,5…23,5L/h (refrigerant)
    • air velocity: 0…2,5m/s

    230V, 50Hz, 1 phase
    230V, 60Hz, 1 phase
    230V, 60Hz, 3 phases
    UL/CSA optional

    Dimensions and weight

    LxWxH: 2250x790x1750mm
    Weight: approx. 309kg

    Required for operation

    water connection