ET 620 represents a real air conditioning and ventilation system. The system capacity is sufficient to climatise a laboratory room. Unlike small systems that use conventional climate controllers, this experimental system is equipped with a modern building management system for control. This corresponds to the state of the art for large air-conditioning systems and is advantageous when presenting complex learning content. For example, real components with the comparative processes are converted into formative images.
The air conditioning and ventilation system includes a filter element, a ventilator with EC motor and controlled speed, a water chiller with an air cooler, an electric air heater and humidification by steam humidifier. The following functions are possible: heating / cooling and humdifiying / dehumidifying. For this purpose the active components can be run either manually individually or via a central PLC in automatic operation. The PLC controls the temperature and air humidity independent of each other. Pressure losses can be measured at each section of the duct.
All common components, such as filter, air heater / air cooler, outlets, smoke detector, multi-leaf dampers, inspection and fire protection flaps are available and can be investigated.
The air conditioning and ventilation system consists of two independent system components: main unit and water chiller. The connection is performed via hoses. Due to the waste heat the water chiller should not be placed inside the room to be climatised.
The experimental plant is controlled by the PLC via touch screen. By means of an integrated router, the experimental plant can alternatively be operated and controlled via an end device. The user interface can also be displayed on additional end devices (screen mirroring). Via the PLC, the measured values can be stored internally. Access to stored measured values is possible from end devices via WLAN with integrated router/LAN connection to the customer’s own network. Via direct LAN connection the measured values the measured values can be transferred to a PC and stored there (e.g. via MS Excel).
ET 620 Air conditioning and ventilation system
Learning objectives/experiments
- practice-oriented principles of air conditioning and ventilation technology
- design and maintenance of an air conditioning and ventilation system
- principles of room air conditioning (h-x diagram)
- explanation of components: filter, air heater, air cooler, humidifier, condensing unit, PLC, flaps, outlets
- function of safety devices
- measurement of pressure curve and pressure losses
- effect of air cooler, air heater and humidifier on the state of the air at the outlet
- investigation of the control behaviour of an automatic air conditioning controller, determination of limiting factors
Scope of delivery
experimental plant, water chiller, set of accessories, set of instructional material
Features
- high practical relevance due to real dimensions and use of commercial components
- manual or automatic operation
- integrated router for operation and control via an end device and for screen mirroring on up to 10 end devices: PC, tablet, smartphone
Description
Technical details
Specification
- practice-oriented air conditioning and ventilation system with 2 independent system components: main unit and water chiller
- manual or automatic operation
- control of the experimental plant using a PLC, operated by touch screen
- screen mirroring: possible to mirror the user interface on up to 10 end devices
- main unit: air duct, ventilator, air condition. system
- air conditioning system with air cooler, electric air heater, humidification
- hoses connect air cooler to water chiller
- air duct from hot galvanised sheet with sight window and pressure measurement connections to record pressure curves
- air duct with filter, multi-leaf damper, ceiling vent, protective grating, vent. grille, fire protect. flap, inspection flap, sound insulation link, smoke detector
- refrigerant R410A, GWP: 2088
Technical data
PLC: Weintek cMT3162X
Ventilator, EC motor
- nominal speed: 2998min-1
- power consumption: 0,5kW
- volumetric air flow rate: 840…1800m3/h
Air heater, infinitely: 2,4…12kW
Water chiller with scroll compressor
- rated cooling capacity: approx. 16,9kW at 15/32°C
- power consumption: approx. 4,5kW at 15/32°C
- flow: 2,9m3/h
- water tank: 70L
Steam humidifier
- steam capacity: 10kg/h
- power consumption: 7,5kW
Main duct, WxH: 712x508mm
Refrigerant: R410A, GWP: 2088, filling volume: 2,3kg, CO2-equivalent: 4,8t
Measuring ranges
- pressure: 0…25mbar
400V, 50Hz, 3 phases; 400V, 60Hz, 3 phases
230V, 60Hz, 3 phases; UL/CSA optional
Dimensions and weight
LxWxH: 3900x800x1946mm; 560kg (experimental plant)
LxWxH: 1440x600x1500mm; 245kg (water chiller)
Required for operation
water connection, drain
Order number: 061.62000
Media
Knowledge
Product overview
ET 620 Air conditioning system, setup Pdf
Poster
Remote learning-Screen mirroring: connection, mirroring, data acquisition Pdf
Lab proposal
Refrigeration and air conditioning lab proposal Pdf
Video
Impressions
Screenshot
Details
ET 620
