Petra Variable Water Volume System
Since 2003, Petra has committed itself to be an innovator in the energy saving HVAC systems with the introduction of the Petra VWV system. The system offers large savings in energy and initial costs. The system may be used in multi-story buildings, office complexes, hotels, villas or any other type of project where high energy savings are required. The system is comprised of air-cooled water chillers (cooling + heating), indoor units with three way valves, a control package, pumps, expansion tanks, storage tanks, water piping and integrated complete system control
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