Rooftop Heating and Cooling System Delivers Performance and Efficiency

Daikin has introduced the Rebel Applied rooftop heating and cooling system. Rebel Applied is a packaged system that meets ASHRAE’s latest standard for performance in airflow design. Ideal for building retrofits due to its compact and customizable design, Rebel Applied delivers comfort, indoor air quality and energy savings. 

Rebel Applied delivers comfort, indoor air quality and energy savings.
Rebel Applied delivers comfort, indoor air quality and energy savings.

The footprint of the rooftop system is up to 37 percent shorter in length and 30 percent lighter than legacy rooftop units. It is configurable as well; contractors can add or remove sections to adjust the length of the unit to fit on old or existing roof curb, saving time and expense for facility updates and upgrades.

Along with Rebel Applied, Daikin has released two ultra-high-efficiency chillers — the Magnitude Magnetic Bearing Centrifugal Chiller and Aptitude Oil Bearing Centrifugal Chiller.

Designed for installation ease and reliable operation, both chillers feature small footprints and utilize the ultra-low GWP, AHSRAE class A1, R1233zd refrigerant, making them ideal for retrofits where real estate is limited or at a premium cost. As noted, Magnitude and Aptitude use R-1233zd, the next-generation, low-global warming potential (GWP) HFO refrigerant for centrifugal chillers. R-1233zd is an option that offers low toxicity and non-flammability (ASHRAE Class A1).

The Magnitude chiller builds on Daikin’s latest magnetic bearing technology, which eliminates oil, seals, gears and wear surfaces for longer machine life. This allows the equipment to run at peak levels, up to 40 percent more efficient than standard centrifugal chillers. The Magnitude can perform at full load efficiencies as low as 0.49 kilowatts per ton (kW/ton) with part load values as low as 0.29 kW/ton. Plus, the RapidRestore capability, which ensures efficient restart times, and high temperature of water leaving the evaporator make the technology suited for mission critical applications like data centers and hospitals.

Ideal for comfort cooling applications, such as offices, hotels and stadiums, the Aptitude product line uses traditional oiled bearing technology, along with the bench grinder design with one stage on each side of the motor to deliver efficiency and performance that matches the Magnitude chiller.

The Magnitude and Aptitude chillers will be available later this year.

Read more information about the Rebel Applied rooftop system and the company’s current lineup of commercial HVAC equipment and services.

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