storing food moving heat a retail facility case studyfile no.: 9.520uk date: august, 2013 supersedes: 9.520uk date: july 2013 Armstrong Design Envelope ivs pumps monitor the flow within the cooling system and automatically adjust operating speed to match demand. Sainsbury’s and Greenfield selected Armstrong Design Envelope pumps for performance, pumping efficiency and intelligent variable speed technology. Sainsbury’s Background Sainsbury’

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