Pair system: for one room

Compressors, the heart of air conditioning systems, account for 80-90% of the total power consumption of air conditioners. In anticipation of carbon neutrality by 2050, air conditioner manufacturers understand, more than ever, the importance of increasing compressor efficiency as an ongoing energy conservation measure. Behind Daikin Industries' continued No. 1 position in sales in the air conditioner industry is a strength in compressors that no other company has, a conceptual power to develop such compressors, and an ability to take action.

Chief Engineer Hideki Matsuura of the Technology and Innovation Center, who has led development of compressor technology at Daikin for many years, talks about the strengths of Daikin's compressors and the development capabilities that support them.

Why Choose an AC with a Swing Compressor?

Most air conditioners use rotary compressors, but Daikin is the only company that offers a swing compressor—and it’s designed with you in mind.

Here’s why it matters:

• Leak‑proof efficiency: Rotary compressors lose performance at low speeds because of leakage. Swing compressors prevent this, keeping cooling strong and steady—even at very low speeds. That means your AC works efficiently whether it’s running hard on a hot day or quietly maintaining comfort at night.

• Long‑lasting durability: By combining the vane and roller into one moving part, Daikin eliminated the springs and friction points that cause wear in rotary compressors. Less wear means fewer breakdowns and a longer life for your air conditioner.

• Smooth, quiet comfort: The swing design reduces vibration and noise compared to rotary compressors. You’ll enjoy cool air without the distracting hum.

• Eco‑friendly innovation: When refrigerants changed to protect the ozone layer, rotary compressors struggled. Daikin solved the problem with the swing design, ensuring reliable performance with modern, environmentally safer refrigerants.

• Precision engineering: Even though the swing compressor’s design is more complex, Daikin perfected the manufacturing process to deliver high accuracy and dependable quality.

A Daikin swing compressor gives you better cooling, lower energy waste, quieter operation, and longer reliability than a traditional rotary compressor. It’s a smarter choice for comfort, savings, and peace of mind.

For the full artile from Daikin International, click here to read.

In today’s energy-conscious world, improving refrigeration and air conditioning efficiency is more important than ever. At Daikin South Africa, we’re committed to helping customers understand the technologies that drive performance. Two common methods of controlling refrigerant flow are Electronic Expansion Valves (EEVs) and capillary tubes—but they differ significantly in precision, adaptability, and efficiency.

Capillary Tubes: Simple but Limited

• Basic design: A fixed-length, narrow tube that restricts refrigerant flow by pressure drop.

• Low cost: Easy to manufacture and install, making them popular in small domestic systems.

• No active control: Flow is constant, regardless of load or temperature changes.

• Efficiency drawbacks: Struggles under variable operating conditions, often leading to wasted energy and reduced cooling performance.

Electronic Expansion Valves: Precision in Action

• Advanced components: Stepper motor, sensors, and electronic controller work together to regulate refrigerant flow.

• Dynamic control: Continuously adjusts valve position based on real-time temperature and pressure data.

• Energy savings: Studies show up to 15% lower power consumption compared to traditional devices.

• System protection: Maintains optimal superheat, preventing liquid refrigerant from damaging compressors.

• Flexibility: Suitable for variable load systems like VRF units, chillers, and heat pumps.

Key Differences

Why It Matters

For modern HVAC and refrigeration systems, especially those facing fluctuating demands, EEVs deliver superior performance, reliability, and sustainability. While capillary tubes remain a cost-effective choice for small, stable applications, EEVs are the clear solution for businesses and households seeking long-term efficiency and smarter cooling.

Read the full article courtesy of RSTV here.