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VASSound-damped volumetric flow controller PERFORMANCE DATA TESTS AND STANDARDS • Operating temperature: 10 - 40° C • Difference pressure range 50 - 1000 Pa • Connection voltage for VAS (electronic): 24V DC/AC, ±10%, 50/60 Hz • Control signal: 0-10 V DC or 2-10 V DC • VDI 6022, Sheet 1: Hygienic requirements of ventilation and air-conditioning systems • DIN EN 13779 (2007): Ventilation of non-residential buildings • Leakage air: DIN EN 1751 (2014-06) SPECIAL FEATURES APPROVALS AND CERTIFICATES • RoHS 2002/95/EC • EMC 2004/108/EC • Low voltage 2006/95/EC • Machinery Directive 2006/42/EC • Compact dimensions and low height • Integrated high-performance silencer • High precision, easy mode of operation and reliable control • Low pressure losses • No inflow or outflow distances required. SCHAKO | Ferdinand Schad KG SteigstraRe 25-27 D-78600 Kolbingen

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VAS – Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Table of Contents Construction subject to change. No return possible.

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VAS – Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Description | Function | Field of application The sound-damped volumetric flow controller VAS in rectangular design is suitable for use in supply or return air systems for constant and variable volumetric flows at high acoustic requirements. The VAS achieves high control accuracy at any inflow conditions. It can also be used for controlling room or duct pressure. In VAV systems, the integrated volumetric flow controller VAS can regulate variable volumetric flows between Vmin and Vmax as a function of the supply air...

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VAS – Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Advantages | Construction | Version| Product versions | Accessories OVERVIEW OF PRODUCT VERSIONS Compact dimensions and low height Integrated high-performance silencer High precision, easy mode of operation and reliable control Optimised for systems of low velocities Low pressure losses Significant savings in operating costs during installation For rectangular and round duct connections Low mounting and maintenance expenditure No inflow or outflow distances required. Figure 1: Supply air, left-hand model, top view...

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Dimensions and weights Detail Y Supply air: Return air: Duct: B = blue R = red Table 1: Weights VAS-K/ VAS-S Construction subject to change. No return possible. Version: 2017-05-08 | Page 5

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VAS – Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Dimensions of accessories DIMENSIONS OF ACCESSORIES Transition piece (-USR) Connection to round ducts on high-pressure side for supply air or return air (to DIN EN 1506). Rubber lip seal (-GD1, for -USR only) Detail X: Metu flange Figure 6 : Rubber lip seal (-GD1) Figure 7: Connection to round ducts on high-pressure side Table 3: Connection to round ducts on high-pressure side Figure 8: Connection to rectangular ducts NW 1 2 3 4 5 Table 4: Connection to rectangular ducts Construction subject to change. No return possible....

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Dimensions of accessories ■CHAK# Flat-bed acoustic cladding (-FD1) Integrated into VAS- / VAS-S housing Tabel 5: Flat-bed acoustic cladding (-FD1) Table 6: Heating register Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data Volumetric flow range Table 8: Static minimum pressure difference For correct operation of the controller, please note that an additional 5 Pa must be added to the static minimum pressure difference during parameter setting. Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data = value below the static minimum pressure difference Table 9: Flow generated noise VAS-K-Z Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data = value below the static minimum pressure difference Table 10: Flow generated noise VAS-K-A Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data = value below the static minimum pressure difference Table 11: Flow generated noise VAS-S-Z Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data = value below the static minimum pressure difference Table 12: Flow generated noise VAS-S-A Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data Table 13: Radiated noise VAS-K-Z / VAS-S-Z / VAS-K-A / VAS-S-A Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Technical data | Controller selection Heating register (-H2), two-row CONTROLLER SELECTION Table 15: Heating register (-H2) Other controllers available on request. Makes Belimo, Gruner, Sauter, Siemens possible. Table 17: Controller selection Heating register (-H4), four-row Table 16: Heating register (-H4) Construction subject to change. No return possible.

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VAS - Sound-damped volumetric flow controller TECHNICAL DOCUMENTATION Circuit diagrams Circuit diagram standard controller Compact controller NMV-D3-MP (make Belimo) VAV with analogue command signal VAV with lock (CLOSED) MP-Bus activation with integrated MP / actual value sig-■*TaO ...10V/2...10V 1 VAV command signal 0...10V CLOSED / VAV mode Lock mode (CLOSED): In the 2...10 V mode, the following function can be carried out with a 0 -10 V signal: Construction subject to change. No return possible.

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