News›6/2/2022

Provenly accurate adjustment in FLO plenum boxes

FLO plenum boxes have been certified to meet adjustment accuracy class 1 standards, maintaining airflow within ±5% of designed specifications.

According to testing by an independent institution, FLO plenum boxes achieve adjustment accuracy class 1, meaning their control positions remain within ±5% of designed airflow values. This precision is significant for balanced ventilation system operation. Adjustment accuracy classifications depend on acceptable variance between designed and actual airflows—class 1 permits maximum 5% variance while class 2 allows up to 10% difference. These performance levels must be maintained even after maintenance work, and devices must offer wide adjustment ranges to meet class 1 requirements. The FLO series employs a distinctive control section that measures pressure differential across itself rather than between room and device, enabling exceptional accuracy. A SlideFix locking mechanism ensures adjustment positions remain stable. FLO is compatible with both OLO and HALO diffusers for suspended ceiling installations, delivering draft-free, controlled indoor climates suitable for offices, business premises, and educational facilities. Inaccurate devices throughout a ventilation system create cumulative performance degradation, particularly affecting final outlets where supply air volume may fall significantly short of specifications. Implementing pre-adjusted FLO units streamlines commissioning while guaranteeing airflow and sound levels remain within design parameters. Preset values integrate directly from design software including MagiCAD and Revit, allowing engineers to confirm devices will perform within intended specifications.