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Johnson controls launches next generation cooling products

Johnson Controls has introduced a several new products, aimed at increasing building cooling energy efficiency.

Its York branded YMC² magnetic centrifugal chiller is claimed to be 10 per cent more efficient than conventional, variable-speed chillers. Previously used in naval applications, the technology eliminates mechanical contact loss in the driveline.

The YMC² also features OptiSpeed variable-speed drive, as well as optimised a centrifugal compressor that takes advantage of low-temperature cooling tower water.

Noise levels are reduced thanks to magnetic-bearing technology – full-load conditions measure at 73dBA.

Operating with HFC-134a refrigerant the YMC² is said to require 57 per cent fewer refrigerant-piping connections and is field serviceable.

The company’s new York branded YVAA air-cooled variable screw chiller is claimed to improve performance by up to 50 per cent in retrofit applications, together with having the industry’s lowest kW/Tonne at both full-load design and off-design conditions.

The YVAA has design efficiencies up to 11.6 EER and can be configured to deliver an integrated part load up to 19.8EER, furthermore, it can reduce ambient noise by as much as 16dBA at off-design conditions.

Operating off HFC-134a the chiller can reduce ambient noise by 16dBA at off-design condition, while a proprietary falling-film evaporator and advanced micro channel condenser coils reduce the refrigerant charge by as much as 15 per cent.

Billed as Johnson controls’ third generation of scroll heat pumps, the York YLPA exceeds the Eurovent A-Class certification program in both cooling and heating modes.

Operation at part load exceeds full load efficiency, bringing down operating costs and increasing efficiency.

Operation is extended to -10 deg C, with production of hot water above 45 deg C minimising the need for a support boiler.

Designed for R410A use the YLPA is claimed to have a minimum running noise level of 57dBA thanks to an acoustically sealed enclosure for all compressors.

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