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Summary of Contents for Robur AD Series
- Page 1 Design manual AD evaporative coolers...
- Page 2 The rights of those who have legitimately filed the registered trademarks contained within this publication are not affected. With the aim of continuously improving the quality of its products, Robur S.p.A. reserves the right to modify the data and contents of this...
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Page 3: Table Of Contents
Design manual AD evaporative coolers INDEX OF CONTENTS 1 Premise 7 Choice of models and number of coolers ..................p. 4 to be installed ............... p. 10 2 Cooling and ventilation ..........p. 4 Available range .............. p. 10 Microclimate within the room ........p. 4 Sizing examples ............. -
Page 4: Premise
Robur AD units. formation on the operation, design and characteristics of cool- The Robur technical service is always at your disposal for any fur- ing systems with evaporative coolers Robur AD. ther technical information on the application and use of these Robur also provides a spreadsheet for a preliminary design of appliances. -
Page 5: The Result And The Advantages
Design manual AD evaporative coolers process of the water that comes into contact with the treated air: The operating principle is very simple: if the system expels all the the air taken from the outside passes through cellulose panels introduced air, the system produces maximum efficiency, grants of particular structure wet with water, gives up part of its heat all the planned air renewals and cools the environment under during the process of evaporation of the water and lowers its... -
Page 6: Air Psychrometric Chart
AD evaporative coolers AIR PSYCHROMETRIC CHART The performance of an evaporative cooling system varies ac- on the saturation efficiency of the evaporative pack and can be cording to the physical conditions of the treated air, they depend obtained using air psychrometric chart. Figure 4.1 ... - Page 7 Design manual AD evaporative coolers Figure 4.2 Air psychrometric chart It should therefore be specified that the evaporative cooling sys- tem provides a different degree of comfort to the environment as the physical conditions of the outdoor air change, and cannot guarantee constant and predefined temperature and humidity conditions.
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Page 8: The Evaporative Cooler
AD evaporative coolers THE EVAPORATIVE COOLER The AD evaporative cooler is an appliance powered by electricity There is an automatic washing cycle every 3 hours (standard): and mains water, which is installed on the roof or on the exter- the appliance suspends its evaporation cycle for a few minutes, nal wall or in correspondence with a window of the room to be the water contained in the tank is discharged and replaced with ventilated and cooled. -
Page 9: Routine Maintenance
Design manual AD evaporative coolers ROUTINE MAINTENANCE Figure 5.4 Water drain device Routine maintenance of the evaporative cooler is limited to end- of-season cleaning, which includes washing the water distribu- tion circuit, the evaporative packs, the recirculation pump and the water collection tank. In the winter season it is necessary to drain all the water con- tained in the supply system to avoid damage caused by freezing. -
Page 10: Number Of Air Renewals Required Depending On The Type Of Activity In The Building
30 units, to be associated with a centralised stalled depends on the customer's needs, on the different possi- control system, supplied by Robur. bilities of positioning the coolers and the air ducts, considering The three versions can be summarized as follows:... -
Page 11: Electrical And Water Supply Network
Design manual AD evaporative coolers air diffusers, the construction of the water supply and drainage Figure 7.2 Installation example network and the power supply network and the connection of the electronic control. The following Figures show installation examples. Figure 7.1 Installation example ≥... -
Page 12: Electrical Supply Network
AD evaporative coolers rate of 7 l/min for each unit at a pressure of 1,5÷3 bar emptying the entire water supply system before the start (maximum allowed pressure: 6 bar). of the winter season to avoid damage due to freezing. The distribution network must be equipped with a suitable filter The evaporative cooler is equipped with a sleeve located on the to prevent the passage of solid elements, such as sand and dirt. -
Page 13: Control And Regulation Solutions
▶ speed: 1,33 m/s ▶ The crossing speed designed for the Robur AD units allows a good exchange efficiency of the evaporative pack and a suffi- ciently low speed to avoid dragging phenomena of water drop- lets in the cooling air. -
Page 14: Centralized Control
AD evaporative coolers Table 10.2 EVO control technical specifications Figure 10.4 OCDS010/OCDS011 centralized control Enclosure plastic box, dimensions: 180x150x65 mm Data storage on EEPROM memory Frontal protection IP54 Ambient temperature -10/+60 °C Operating conditions Storage temperature -20/+70 °C Relative environment 20÷80%, non condensing humidity screw terminals for wires with a maximum cross-sec- Connections... - Page 15 Design manual AD evaporative coolers technical specifications To use this control mode, it is essential that each cooler (up to a maximum of 30) is equipped with the OCDS009 network Power supply 230 V AC ± 10% card and that they are connected as an alternative to either the Operation field -50/+150 °C OCDS010 or OCDS011 control panel (the latter if connection to...
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Page 16: Diffusion Plenums
AD evaporative coolers DIFFUSION PLENUMS For a more homogeneous diffusion of the cooled air in the room, 4-way diffusion plenum for AD14 ▶ diffusion plenums are available as an option: 6-way diffusion plenum for AD20 ▶ 11.1 DIMENSIONS Figure 11.1 4-way plenum ODFF002 dimensions Figure 11.2 ... -
Page 17: Dimensions
Design manual AD evaporative coolers TECHNICAL DATA AND DIMENSIONS 12.1 TECHNICAL CHARACTERISTICS Table 12.1 Technical characteristics AD14 AD20 Installation data at maximum speed m³/h 13000 20000 Air flow at average speed m³/h 9700 15000 at minimum speed m³/h 6500 10000 fan type assiale maximum useful pressure head water consumption... -
Page 18: Installation Examples
AD evaporative coolers Figure 12.2 AD20 dimensions 1650 1150 261.5 592.5 592.5 1245 1185 1215 Water inlet 3/8" M Water drain 60 mm M Electrical panel 12.3 INSTALLATION EXAMPLES Figure 12.4 Installation example Figure 12.3 Installation example Cod.: D-MNL053EN Rev.: A 19 MED SDC 008 07/06/2019 AD evaporative coolers... - Page 19 Design manual AD evaporative coolers Figure 12.5 Installation example Figure 12.6 Installation example Cod.: D-MNL053EN Rev.: A 19 MED SDC 008 07/06/2019 AD evaporative coolers...
- Page 20 Robur mission Robur is dedicated to dynamic progression in research, development and promotion of safe, environmentally-friendly, energy-efficiency products, through the commitment and caring of its employees and partners. Robur S.p.A. advanced technologies for climate conditioning via Parigi 4/6 24040 Verdellino/Zingonia (BG) Italy +39 035 888111 - F +39 035 884165 www.robur.it robur@robur.it...
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