2022
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Feature
JOHNSON CONTROLS Johnson Controls recently launched its OpenBlue system . OpenBlue is a complete suite of connected solutions that delivers impactful sustainability , new occupant experiences , and respectful safety and security that combines our 135 years of building expertise with cuttingedge technology .
It also features a suite of tailored , AI-powered service solutions such as remote diagnostics , predictive maintenance , compliance monitoring , advanced risk assessments , and more .
One of the pillars of the OpenBlue system , is healthy buildings – with the focus on healthy people , healthy places , and a healthy planet . The healthy people focus is on :
• Delivering clean air
• Keeping people healthy and safe
• Ensuring comfort and wellness
• The healthy places focus is on :
• Asset performance ( asset life , uptime , reduced capex )
• Energy security and efficiency
• Advanced security and compliance
• Remote operations ( monitor , control , maintain )
• The healthy planet focus is on :
• Reducing energy usage
• Lower water usage
• Streamlined sustainability reporting
Discover connected , digitally-driven solutions that protect people and data , optimise facility operation , and help you achieve sustainability goals . Take a minute to explore the benefits of OpenBlue Healthy Buildings .
KEYSTAR INDUSTRIES
Optimal management of energy consumption in a supermarket cannot be separated from adequate cooling control of refrigeration counters . For supermarkets , Eliwell offers Domino Zero , the latest iteration of its efficient Domino controller for sustainable refrigeration systems with transcritical CO₂ as well as all common refrigerants .
The addition of ‘ zero ’ to the new controller ' s name represents the solution ' s goal of zero waste in consumption and maintenance . Domino Zero provides the right temperature in refrigeration cabinets with an electronic valve , but also optimises the cabinet ’ s efficiency with excellent superheat control .
Domino Zero expands the Eliwell-developed algorithm for Domino , as well as its scope . Domino Zero expands control options to additional valve types and can be used to control PWM , and both bipolar and unipolar stepper valves .
The benefit of using this solution results in energy savings , lower installation costs courtesy of the pre-set configurations , and a reduction in maintenance requirements .
Supermarkets created with RTX 600 Domino Zero and EWCM 9000 Pro-HF controllers for transcritical CO₂ systems confirm how refrigeration systems can be integrated with HVAC to reduce the cost of equipment , the space occupied by systems , energy consumption and maintenance costs by over 25 %.
Domino Zero is perfect for Transcritical CO₂ systems .
www . hvacronline . co . za RACA Journal I June 2021 35