Woolworths - Carpark Ventilation
This project involved the installation of a Carbon Monoxide detection and control system to the carpark(s) at Woolworths Nelsons Bay NSW.
This carpark area has one exhaust fan and three supply air fans.
The works involved the use of Variable Speed Drives to control the exhaust fan and Carbon Monoxide Sensors.
The key aspect of this project is the control system (BMCS). Monitoring and Control of the four carpark ventilation fans is via
DEOS OPEN 500 controllers.
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DEOS Graphics Interface is clear and easy-to-follow, access to this is for service technicians only via the onboard web interface.
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Car Park fans are controlled with Variable Speed drives and run according to the DEOS control strategy.
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The fan turns off below 15% demand and is programmed to run at 100% at 9 am daily to provide one full air change each 24 hr period.
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The fan CO control overrides to 100% in fire mode or in any fault condition in which case a flashing indicator light and fault light are displayed on the control panel.
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CO Sensors set points are adjustable via the graphical interface.
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Fans and sensors fault codes and alarms easily managed via the graphics interface.
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Capacity for future trend logging.
About
Woolworths is Australia’s largest supermarket chain. Operating 995 stores across Australia, Woolworths relies on the 115,000 team members in stores, distribution centres and support offices to provide our customers with superior service, range, value and convenience.
Woolworths prides itself on working closely with Australian growers and farmers to ensure the best products are available to customers. Sourcing 96% of all fresh fruit and vegetables and 100% of fresh meat from Australian farmers and growers; this makes Woolworths Australia’s Fresh Food People.
Challenges
AS/NZS1668.2:2012 is the current Standard relevant to ventilation of buildings as referenced in the BCA. According to this standard, the target of a car park ventilation system is to limit Carbon Monoxide (CO) concentrations to levels specified in Worksafe and National Health and Medical Research Criteria (NHMRC).
How We Helped
The key to the success of this upgrade is the control system (BMCS). Automation Industries were able to offer a simple but sophisticated tailored DEOS control system to manage the Carpark ventilation and ensure that the systems run as designed.
The DEOS graphic interface also provides
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straightforward management of faults from the CO sensors and/or the fans
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changes to settings are clear but only available to personnel with appropriate access levels.
