What’s the difference between a split AC unit and a central chiller system?

Split ACs are decentralized systems that cool individual zones directly, without the need for chilled water, pumps, or extensive ducting. They're faster to install, more flexible, and often more energy-efficient for smaller or varied spaces.

Are ista's AC systems compliant with UAE energy regulations?

Yes. All systems installed by ista comply with ESMA and QCC guidelines and use eco-friendly refrigerants. We ensure full alignment with all regional energy-efficiency laws.

Are the systems suitable for retrofit projects?

Yes. The compact, modular nature of split units makes them ideal for retrofits — especially in buildings where space, infrastructure, or cooling zones are complex or limited.

What’s included in the installation process?

We offer a full-service approach: On-site assessment, system design, compliant installation, secure mounting, and optional ongoing maintenance. Every step is tailored to your building’s needs.

How energy-efficient are the AC units?

Our units use inverter technology to adapt cooling output to real-time demand, reducing energy use during partial load conditions. This leads to lower electricity bills and fewer emissions, without compromising comfort.

Upgrade to greener cooling.

State-of-the-art AC Units built for efficiency, flexibility and control.

Our high-performance AC units combine inverter technology, zone-level control, and BMS integration — delivering intelligent cooling for modern UAE buildings.

AC technology that pays off.

Optimize energy use with inverter-driven performance

Enhance indoor comfort with precise temperature regulation

Be energy efficient and cut costs

Smarter cooling for every building.

From apartment towers to executive offices and busy retail spaces, cooling needs can vary considerably — and our energy-efficient split air conditioning units are designed to meet those needs.

Equipped with modern inverter technology, they provide faster cooling, quieter operation and reduced energy consumption, all while lowering electricity bills. These systems maintain a consistent indoor climate year-round, providing performance, style and control in one sleek solution, whether it’s the height of summer or a cooler evening.

The tech behind the comfort.

Each split AC unit functions as a compact, self-contained system — ideal for targeted, zoned cooling. Indoor units are mounted discreetly on walls or ceilings and connected to outdoor condensers via slim refrigerant lines. Inverter compressors adapt dynamically to room conditions, ensuring powerful cooling at start-up and efficient operation as temperatures stabilize. The result: Optimal comfort with minimal noise and energy use — all without the complexity of chilled water systems or central pumping.

Lower energy use without sacrificing comfort

Advanced inverters and zone control boost cooling efficiency, cut energy use, and keep indoor climates consistent.

Seamless integration with smart building systems

BMS-compatible units enable control, predictive maintenance, and real-time optimization to boost performance and efficiency.

Designed for UAE standards and sustainability goals

AC units meet local codes and Net Zero 2050 goals, delivering top performance while helping you manage greener buildings.

A meeting is taking place in a modern, light-filled office with glass walls. In the foreground, one person is sitting at a table in front of an open laptop, with printouts and a pen next to them; another person is standing next to the table and appears to be moderating the discussion. A third person is sitting opposite, gesturing as if explaining a point. In the background, other people are working in a lounge area, separated by glass and furniture. The ceiling lighting and visible technical installations emphasise the contemporary character of the workspace and a collaborative, professional working atmosphere.

Unlock energy savings with our ESCO (Energy Service Company) solutions.

Our ESCO services focus on energy efficiency projects that deliver cost savings while improving your energy performance without upfront investment.

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Facts & Figures

6,300 employees

20 countries

3.7 mil. t CO₂ emissions avoided

14 mil. utilisation units

Get more from your AC — with expert installation from ista.

At ista, we use best-in-class practices to make sure your new air conditioning units perform at their best. Our experts assess your current setup and create a tailored plan for installation. We ensure secure mounting of all units to minimize noise and vibration. All lines and cabling are sealed and installed to prevent energy loss and ensure safety. Our teams work with UAE electrical codes to guarantee safe and stable operation. We also offer maintenance packages to keep your system running smoothly.

Technical features

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Inverter technology: This ensures adaptive performance with less energy waste, resulting in smoother cooling, fewer temperature fluctuations and quieter operation.
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Zoned control: Each unit operates independently, enabling precise temperature management by room or area — perfect for multi-use spaces and variable occupancy.
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Quick installation and low infrastructure impact: With no chilled water loops, pumps or large ducts required, split units are easier to install and are ideal for both new builds and retrofits.
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Smart Integration: Compatible with most building management systems (BMS) for remote control, automated scheduling and proactive diagnostics.
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Sleek, space-saving design: The indoor units can be installed in ceilings or walls to preserve architectural aesthetics and maximise usable space.
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High Seasonal Efficiency Ratio (SEER): Designed for regions with extreme temperature variations, it delivers optimal performance even in harsh summer conditions.