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ET 605

FEATURES:
- Climatic chamber with latent and sensitive heat source as cooling load
- Recirculating and outer air operation
- Optional data acquisition software (ET 605.01) 
- Connection options for the use of different automation solutions

DESCRIPTION

Technical Description

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.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. 


Learning Objectives / Experiments

- air conditioning system and its components
- conditioning room air 
- mixing different air flows
- representation in the h-x diagram for humid air
  * humidification and dehumidification 
  * heating and cooling 
- representation of the circuit in the log p-h diagram
- effect of a cooling load (dry and wet)
- recirculating and outer air operation
 
In conjunction with optional accessories
- automation in an air conditioning system

FEATURES

Specification

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


Technical Data

Air-cooled condensing unit 
- power consumption: 140W at -10°C
- refrigeration capacity: 320W at +5/40°C
Humidifier
- 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
- humidity: 10...90% r.h.
- power: 0...600W (power consumption of the compressor in the condensing unit); 2x 0...300W (cooling loads)
- pressure (refrigerant): -1...9bar / -1...24bar
- flow rate (refrigerant): 1,5...23,5L/h
- air velocity: 0...2,5m/s


Dimensions and Weight
LxWxH: 2010x760x1910mm
Weight: approx. 309kg Required for Operation

230V, 50/60Hz, 1 phase or 230V, 60Hz, 3 phases
Water connection


Scope of Delivery

1 trainer, filled with refrigerant
1 set of instructional material

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