Page 31 - Climate Control News September 2022

New free cooling, heat recovery options
CARRIER HAS INTRODUCED high-perfor- mance heat recovery and free cooling options to its AquaSnap 30RBP air-cooled scroll chiller range which uses R-32 refrigerant.
AquaSnap units have an outstanding seasonal energy performance ratio (SEER) for cooling of up to 6.62, reducing indirect greenhouse gas emissions resulting from energy use.
The latest heat recovery and free cooling options extend energy savings, further reducing greenhouse gas emissions over the lifetime of the equipment.
The heat recovery system enables chillers to produce domestic hot water up to 80deg C, while
“FREE COOLING AUTOMATICALLY ACTIVATES WHEN THE OUTDOOR AIR TEMPERATURE DROPS.”
continuing to provide cooling, useful for applications such as hotels, hospi- tals and industrial processes requiring hot water.
The free cooling option makes use of favourable ambient and load conditions, har- nessing free cooling from the environment to augment or replace mechanical cooling via the chiller’s compressors, reducing energy con- sumption and running costs.
Two versions of free cooling are available. Partial free cooling is designed for applications with a variable primary cooling load, such as offices and healthcare, which may also have a constant residual cooling need.
Examples include computer suites or scanner facilities. The total free cooling option is designed for applications with a constant cool- ing need throughout the year, such as industrial processes and data centres.
Carrier HVAC marketing product manager for chillers and heat pumps, Eric Pollet, said heat recovery and free cooling can deliver significant energy savings for most applications.
ABOVE: Carrier’s AquaSnap 30RBP chiller.
“Free-cooling is particularly valuable in higher latitudes, where cooler climates offer the great- est opportunities for harnessing natural ambi- ent conditions rather than relying on mechanical cooling,” he said.
“Under these conditions, it is possible for free cooling to meet most of an application’s cooling needs, delivering huge potential savings for the end user.”
Carrier’s hydronic-based free-cooling system automatically activates when the outdoor air temperature drops 1 degree C below the chiller’s return water temperature, harnessing the full free cooling opportunity and maximising energy savings.
Chillers
Multi-pipe unit for every season
TRANE TECHNOLOGIES HAS launched the Sintesis Balance CMAF, the latest addition to its innovative portfolio of multi-pipe units for simultaneous cooling and heating.
The fourth generation of Trane’s air-sourced multi-pipe units raises the bar in sustainable, efficient and flexible delivery of cooling and heating in buildings.
Simultaneous heating and cooling by one sin- gle unit eliminates the need for separate boiler and chiller systems to fulfill buildings’ cooling needs in the summer, heating in the winter or both throughout the year.
This offers building owners of multifunc- tional facilities like office buildings, hospitals, theatres and hotels reduced investment costs, better use of floor space and lower total operat- ing expenses while significantly improving the sustainability of their operations.
The Trane CMAF uses renewable and recov- ered energy for the production of hot water and can replace the existing fossil-fuel boiler and chiller system to deliver both chilled water and hot water for the entire building with no direct greenhouse gas emissions.
This contributes to decarbonisation of build-
LEFT: The Sintesis Balance CMAF is suitable for all year round heating and cooling.
ings and creating better air quality in and around the building.
The new Sintesis Balance CMAF models are substantially more efficient when compared to oil and gas boilers. CMAF offers Total Efficiency Ratio (TER) of up to 8.2 and Coefficient of Perfor- mance (COP) of up to 3.35.
The expanded operating map allows CMAF to deliver hot water with temperatures up to 68 degrees Celsius. The heating capabilities of the unit also makes it a very good choice for build- ing applications in climatic regions where ambi- ent air temperatures go down to minus 18 degrees Celsius.
The president of Trane in Europe, Middle East and Africa, Jose La Loggia, said the CMAF is an example of product development that can create a sustainable heating sector and contribute to mitigating climate change.
Trane Europe portfolio manager, Louis Rom- pre, said Sinstesis Balance CMAF builds on over a century of Trane’s expertise in creating effi- cient chillers and brings this competency to the heating market.
CLIMATE CONTROL NEWS SEPTEMBER 2022
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