Johnson Controls’ YORK YZ: next-gen refrigerant and magnetic bearings delivers best energy efficiency rating globally

It’s hard to fault the new Johnson Controls’ YORK YZ Magnetic Bearing Centrifugal Chiller. Released globally in September 2018 and now available in South Africa, it brings together ground-breaking YORK innovations refined over decades of real-world use to deliver the world’s first chiller fully optimised to use the next-generation low-global warming potential (GWP) refrigerant — R-1233zd(E) and rated ‘the world’s most efficient chiller’ — a claim you don’t make without strong proof.

“Johnson Controls has pulled out all the stops to achieve this accolade. The York YZ, which provides cooling capacities of between 800kW and 3.5MW, is truly the most advanced and energy efficient solution in its class. I believe it will achieve a strong uptake among organisations that are focused on energy efficiency and greener refrigerants, driving down operating and lifetime costs, and maximising their investments,” says Johnson Controls’ Russell Hattingh.

Johnson Controls’ YORK YZ Magnetic Bearing Centrifugal Chiller for energy efficiency and greener refrigerants

Annual energy savings: 35%

Johnson Controls used a holistic approach to the system’s design and engineering, optimising every component around the low GWP refrigerant for ultimate performance. The chiller uses an integral, variable speed drive and advanced magnetic bearing technology that features a single moving assembly suspended in a magnetic field that does not require lubrication. This technology requires significantly fewer moving parts than traditional oil- or refrigerant-lubricated drivelines.

“The result is enhanced reliability, reduced maintenance and improved efficiency,” notes Hattingh. “And if you want to quantify that, compared to traditional fixed-speed oil-bearing chillers, the YZ delivers up to 35% annual energy savings. That’s a huge saving when you consider that the initial cost of the chiller is only a small fraction of the life cycle operating energy cost.”

The energy savings and lower operating costs the YZ chiller delivers are achieved by taking advantage of the off-design conditions where chillers operate 99% of the time. The YZ operates with entering condenser water temperature as low as 4.5°C, providing enhanced performance in every operating condition and the widest operating envelope in the industry.

The chiller can also operate with condenser temperatures below the evaporator temperatures, eliminating the need for a water-side economiser, which simplifies the system, requires less mechanical room space and saves money on components, piping, controls and maintenance.

The YZ’s magnetic bearing technology deserves some attention—it delivers extraordinary reliability and radically simplified maintenance, which translates into massive cost savings.

Magnetic savings

With just a single moving assembly levitating in a magnetic field, the driveline in the York YZ doesn’t require any lubrication and has 80% less moving parts. The non-contact design of the driveline delivers dramatically reduced maintenance costs over the life of the chiller.

Maintenance costs drastically reduced for YORK YZ Magnetic Bearing Centrifugal Chiller

Explains Hattingh: “With simplified driveline maintenance, ongoing maintenance expenses of the York YZ equate to less than 10% of the initial chiller cost… which is why the York YZ is simply unrivalled in savings over the lifetime of the chiller!”

The YORK YZ is currently shipping and is available in South Africa through Johnson Controls.

air-conditioning chillers Johnson Controls York
All York International (SA) Inc news
keyboard_arrow_upJohnson Controls’ YORK YZ: next-gen refrigerant and magnetic bearings delivers best energy efficiency rating globally
keyboard_arrow_downJohnson Controls’ YORK YZ: next-gen refrigerant and magnetic bearings delivers best energy efficiency rating globally

It’s hard to fault the new Johnson Controls’ YORK YZ Magnetic Bearing Centrifugal Chiller. Released globally in September 2018 and now available in South Africa, it brings together ground-breaking YORK innovations refined over decades of real-world use to deliver the world’s first chiller fully optimised to use the next-generation low-global warming potential (GWP) refrigerant — R-1233zd(E) […]

keyboard_arrow_upBeyond building security – intelligent technology adds convenience, utility, ease
keyboard_arrow_downBeyond building security – intelligent technology adds convenience, utility, ease

Security, access control, building management systems (BMS) and Workforce Convenience. These are not really words you would ordinarily combine in a concept, but they are getting closer together where facility owners are thinking ahead. With a little creativity, human-centred design thinking and great use of available technologies, the capabilities of security technology are being stretched […]

keyboard_arrow_upTshwane banana ripening facility chooses York YVWA chiller from Johnson Controls
keyboard_arrow_downTshwane banana ripening facility chooses York YVWA chiller from Johnson Controls

Bananas arrive green at the Banana Ripening Centre and are then palletised and stored in one of the 55 ripening chambers. Collection and distribution of the bananas is synchronised with the six-day ripening process, so it is crucial that the temperature is strictly controlled through the reliable and efficient YORK YVWA chillers.

keyboard_arrow_upJohnson Controls’ YMAA chillers and YMPA heat pumps ramp up the competition in the entry-level chiller segment
keyboard_arrow_downJohnson Controls’ YMAA chillers and YMPA heat pumps ramp up the competition in the entry-level chiller segment

The high price tag of even entry-level chillers has made this market segment very competitive. Johnson Controls’ Amichi Series of Chillers and Heat Pumps, introduced to the South African market just six months ago, offers a high value option, featuring a technology stack and performance that is hard to beat.

keyboard_arrow_upJohnson Controls YMAA chillers and YMPA heat pumps – tailor made for the mid-capacity segment
keyboard_arrow_downJohnson Controls YMAA chillers and YMPA heat pumps – tailor made for the mid-capacity segment

Johnson Controls has launched its Amichi Series of Chillers and Heat Pumps into the South African market. With capacities of 45kW up to 260kW it’s the perfect fit for the local mid capacity segment – it marries the price benefit of a scroll chiller with the increased control a direct current (DC) inverter offers for […]

keyboard_arrow_upJohnson Controls celebrates 50 years in South Africa with exciting new products
keyboard_arrow_downJohnson Controls celebrates 50 years in South Africa with exciting new products

Johnson Controls, a global diversified technology and multi-industrial leader, is celebrating 50 years in South Africa, creating intelligent buildings, efficient energy solutions, integrated infrastructure and next generation air conditioning systems.

keyboard_arrow_upBBE chooses Johnson Controls’ YD Dual Centrifugal Chiller
keyboard_arrow_downBBE chooses Johnson Controls’ YD Dual Centrifugal Chiller

Bluhm Burton Engineering (BBE) has selected Johnson Controls' YD Dual Centrifugal Chiller to meet the mine cooling requirements for Newmont's Subika Underground Project in Ghana.

keyboard_arrow_upNew version of Metasys from Johnson Controls
keyboard_arrow_downNew version of Metasys from Johnson Controls

The new Metasys 8.1 building automation system from Johnson Controls delivers new graphics, enhanced security and other features to mitigate risk, reduce cost and maximise investments.

keyboard_arrow_upJohnson Controls introduces YORK YVWA and YMC2 chillers
keyboard_arrow_downJohnson Controls introduces YORK YVWA and YMC2 chillers

As part of its long-term refrigerant roadmap, Johnson Controls has announced two platforms of high efficiency chillers available with low GWP (global warming potential) options.

keyboard_arrow_upYORK chiller combination with smart CPO technology
keyboard_arrow_downYORK chiller combination with smart CPO technology

Johnson Controls has installed two YORK chillers at the South African offices of a leading multinational tech company. 

keyboard_arrow_upJohnson Controls sets a new standard in chiller technology
keyboard_arrow_downJohnson Controls sets a new standard in chiller technology

Johnson Controls is enhancing its portfolio of commercial and residential HVAC/R products with the expansion to 1,000 tons of cooling (3,500 kW) for its successful magnetic-bearing centrifugal chiller line, the YORK YMC2. 

keyboard_arrow_upJohnson Controls launches new Air to Water Reversible Heat Pump YLRA
keyboard_arrow_downJohnson Controls launches new Air to Water Reversible Heat Pump YLRA

Johnson Controls Building Efficiency’s latest offering in its York YLRA series – the Air to Water Reversible Heat Pump YLRA – replaces the discontinued YLAE HP and brings a number of advances: use of more eco-friendly R410A refrigerant; improved full load efficiencies; a wider operating range, and plenty of customisation options, including a super low noise model.

keyboard_arrow_upNew modular mini-chiller provides affordable and scalable solutions for commercial buildings
keyboard_arrow_downNew modular mini-chiller provides affordable and scalable solutions for commercial buildings

  Johnson Controls has introduced its line of modular mini chillers to provide easy installation, affordability and scalability for small and large facilities in South Africa. 

keyboard_arrow_upPeermont’s Emperors Palace reduces energy consumption
keyboard_arrow_downPeermont’s Emperors Palace reduces energy consumption

Peermont, in partnership with Shared Energy Management (SEM), a joint company owned by Johnson Controls (JCI) and Spoormaker, have implemented an energy saving initiative at its Chiller Plant and Plant 5 (Air Handling Units  for the Main Casino) at Emperors Palace that has resulted in a significant reduction in its overall electricity demand. 

keyboard_arrow_upJohnson Controls launches chiller solutions with advanced solar technology
keyboard_arrow_downJohnson Controls launches chiller solutions with advanced solar technology

Johnson Controls, a company that delivers solutions that increase energy efficiency in buildings, has recently introduced a solar cooling solution to reduce energy costs for large buildings by combining its high-efficiency chillers with hybrid solar thermal and photovoltaic (PV) technologies.

keyboard_arrow_upOld Mutual cuts energy bill, shrinks carbon footprint at Gateway Theatre of Shopping
keyboard_arrow_downOld Mutual cuts energy bill, shrinks carbon footprint at Gateway Theatre of Shopping

At Gateway Theatre of Shopping in KwaZulu-Natal, energy tariffs skyrocket when power consumption exceeds the notified maximum demand (NMD). Since August 2011, however, power consumption has been closely monitored and managed, a move that will save property owners Old Mutual Property (OMP) a considerable amount in energy costs per annum.

keyboard_arrow_upRevival of the console air conditioning unit
keyboard_arrow_downRevival of the console air conditioning unit

An opinion piece submitted by Neil Cameron, Johnson Controls Systems & Service South Africa follows on the Revival of the console air conditioning unit: modern designs that are fast-fit (or retrofit), 30% more economical and eco-friendly

keyboard_arrow_upNew BMW showroom in KZN selects Johnson Controls turnkey York chiller solution
keyboard_arrow_downNew BMW showroom in KZN selects Johnson Controls turnkey York chiller solution

The new BMW showroom on Edwin Swales Drive in Durban, KwaZulu-Natal will have an eye-catching double volume glass display frontage. Facing north-west, the showrooms will catch much of the midday and late afternoon sun. With the comfort of customers and staff paramount, a turnkey air conditioning and environmental control solution was needed.

keyboard_arrow_upJohnson Controls new light commercial ACTIVA Rooftops HVAC range – smarter, smaller, more efficient
keyboard_arrow_downJohnson Controls new light commercial ACTIVA Rooftops HVAC range – smarter, smaller, more efficient

The latest generation of Johnson Controls’ ACTIVA Rooftops, a range of light commercial packaged HVAC (heating, ventilation and air conditioning) products, is still smart, but now these units are also smaller (by about 37%), quieter, more efficient (by 31%), and can converse with the building management system.

keyboard_arrow_upJohnson Controls introduces upgraded, more efficient and eco-friendly chillers
keyboard_arrow_downJohnson Controls introduces upgraded, more efficient and eco-friendly chillers

New chiller series easier to install, integrates with building systems and offers increased control and management

keyboard_arrow_upJohnson Controls now manufactures YORK model YVAA chiller with capacity of up to 350 tons
keyboard_arrow_downJohnson Controls now manufactures YORK model YVAA chiller with capacity of up to 350 tons

The YORK model YVAA air-cooled, variable-speed, screw chiller, is now available up to 350 tons and offers superior efficiency, reduced sound and greater sustainability.

keyboard_arrow_upEco-friendly air conditioning
keyboard_arrow_downEco-friendly air conditioning

Johnson Controls has recently launched their York manufactured console units using R410A, a gas refrigerant with zero ODP (ozone depleting potential)