Rectangular air flow controller for standard application in variable volume systems, suitable for supply and return.
VAV units are used in air conditioning and ventilation systems to improve comfort and reduce energy consumption. The VAV unit is controlled by a thermostat or DDC controller and varies the air quantity based on cooling and/or ventilation needs. This results in considerable savings in fan energy because, with little or no cooling demand, the valve can be partially or even completely closed. The VAV unit can also be used for air quality control. Depending on the CO2 concentration, more or less fresh air is then supplied. The units are available in single and double-walled versions.
Unit Enclosure; galvanized steel (275 g / m²), airtight according to class “B” NEN-EN-1507 and NEN-EN-12237. Class C available on request. Flap blade; sandwich construction, 1.5mm SBR rubber sheeting with an insert between 2 galvanized steel sheets. Bearings; NYLON (PP6.6), maintenance-free Flap shaft; Aluminum ø12 mm Operating temperature + 5 ° C to + 50 ° C Storage temperature –5 ° C to + 70 ° C
Accurate measurement from 1.0m / s air velocity Deviation +/- 2% at 3xD straight approach (+/- 10% at 1xD straight approach). Average measurement according to Log-Tchebycheff method. Amplification of measurement signal with at least 2.5x. Extruded aluminum measuring profile. Rounded measuring openings make the FloXact ™ insensitive to skewed or turbulent flow up to 30º in all directions relative to the profile axis.
Analog controller Belimo LMV-D3-MP (24VAC, 0 (2) -10V input and output, 5Nm). BACnet controller KMC BAC-800x and BAC900x. Installation of control equipment supplied free of charge (PRIVA, Honeywell, Siemens etc.) possible in consultation. All control equipment is standard mounted on the right-hand side (viewed with the direction of air) of the unit unless stated otherwise when ordering.
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