Air cooled chillers for Middle East
High ambient temperatures, desert dust, coastal environment and use of seawater combined in mega projects. Stadiums, headquarters, industrial districts, universities, shopping centers, hotels are only a part of applications where our solutions have been appreciated by our customers. Middle East climatic challenges are Daikin bread and butter, resulting in a set of products and technical customizations specific for this geographical area.
This success is grounded on technology and competences. We developed product ranges specifically designed to ensure the best performance and reliability even in the harshest conditions that Middle Eastern countries can present.
Learn more from this article or contact us to get more information on our Middle East-tailored ranges.
Air Cooled Chillers Overview
Daikin is worldwide recognized for high performance and reliability over the entire product portfolio. The concept is especially true for our air cooled chiller ranges.
In this scenario, EWAD-MZ family represents a reference product for many projects. It is powered by Daikin’s single Screw Compressors and industry-first Variable Volume Ratio (VVR) determining an optimal internal compression ratio leading to sky-high chiller’s performance at all ambient conditions.
“EWAD-MZ series is a range thought and designed to perform in environmental conditions that are specific to the Middle East, i.e. temperatures between 46° and 55° Celsius. The compressor generally used for such applications is a Daikin single screw technology compressor with an in-built inverter, which allows the inrush current on these chillers to be near to zero. This is extremely important for the Middle East market and Dubai in particular, because it makes these machines compliant with the Dubai Electricity and Water Authority directives.
Also, the inverter is enclosed in a box to isolate the component from external agents – dust for instance – and, being refrigerant cooled, it can perform with no problem whatsoever in high temperature environments. Another important technical solution used on the compressor in these machines is the VVR (Variable Volume Ratio) technology, which allows to further improve efficiency. These are the technical solutions used on chillers involved in Middle East projects to allow them to perform in that specific environment”, Francesco Di Giovanni – Product Manager, Screw Chillers Technology.
Not only, the complete package of product air cooled chiller solutions for high ambient temperature conditions include also the ranges EWAD-TZ and EWAD-CZ, with Daikin Inverter single screw compressor, as well as Daikin single screw fixed speed compressor chillers as EWAD-M-, EWAD-C- and EWAD-D-.
As stated, environmental conditions deserve special solutions. This is the reason why an extensive list of options is made available to get the proper fit between project needs and units’ configuration. High Ambient Kit is in this sense a key case. It includes oversized electrical equipment (e.g. main switch, fuses, cables) to guarantee reliability and components’ operating life, even in case of operation with high ambient temperature. As well, High Ambient Kit also introduces a dedicated Sunshield to effectively protect components in the electrical panel from aggressive sunbeams. Depending on the model, then, further protection for electrical equipment is obtained via an enhanced ventilation in the electrical panel, and refrigerant condensing temperature control is ensured by dedicated fans speed control.
Condenser coils can also be protected thanks to external surface protections as Blue-coat and Alucoat (smart protections), E-coating and Blygold treatment (top, gold level protection) depending on the type of condenser coil. All of them are aimed to ensure the proper unit performance and reliability over time even in case the installation is intended in a dusty or salty, corrosive environment (desert, coastal areas, industrial installation).
Several customers appreciated our products, in many different fields. Contact us by using the form below to get more info on our products, or check out our LinkedIn profile to get more information on customer feedbacks.