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Application sheet VVS274

Application sheet VVS274

A6V12189448_en--_a 1 | 7

Application sheet VVS274

Fume hood with variable air volume flow control, stabilizing jet, vertical and horizontal

sash with lighting

● Fume hood exhaust air volume control and control for fast, precise VAV actuator on 0...10V output.

● Consisting of functions for face velocity setpoint, exhaust air volume flow setpoint, sash positioning, and lab

operator display panel. Integrated lighting control

● Control and monitoring of the stabilizing jet fan

● Configure the exact functionality based on connected devices and application block.

● Configurable, generic universal control functions for free I/Os

Plant diagram with integrated lighting control

DXR2… Room automation station

YE VAV exhaust air control with damper actuator YEM and pressure sensor YEP

SV Vertical sash sensor

RU Fume hood control unit

F Flow sensor

L Lighting

Fan for stabilizing jet

State of stabilizing jet

R Room

Summary of content (7 pages)

PAGE 1
Application sheet VVS274 Application sheet VVS274 Fume hood with variable air volume flow control, stabilizing jet, vertical and horizontal sash with lighting ● ● ● ● ● Fume hood exhaust air volume control and control for fast, precise VAV actuator on 0...10V output. Consisting of functions for face velocity setpoint, exhaust air volume flow setpoint, sash positioning, and lab operator display panel.
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Application sheet VVS274 Function diagrams / sequence diagrams Exhaust air volume flow setpoint V EhAirFlMax FhAflMinEffEh EhAirFlMin Sash pos Air flow Sp SshpSpAflMin SshpSpAflMin FhSpAirFlEh Volume flow (Setpoint) Exhaust air VAV maximum air volume flow Fume hood exhaust effective minimum air volume flow Exhaust air VAV minimum air volume flow Front shutter position Face velocity setpoint Sash position for minimum exhaust air volume setpoint Sash position for maximum exhaust air volume setpoint Exhaust
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Application sheet VVS274 Siemens devices Description Device type Data sheet Type Qty. DXR2… Compact room automation station, BACnet/IP, 24 V, DIN housing, 3 DI, 2 BI, 4 UI, 4 DO triacs, 4 AO 0…10 V A6V10959860 DXR2.E17C-103° DXR2.E17CX103A 1 RU KNX PL-Link room operator for fume hood, segmented backlit display, touchkeys or soft touch keypad (Slim) A6V1095985 A6V10959882 QMX3.P87 QMX3.P88 (Slim) 1 YEM VAV damper actuator, AC 24 V, DC 0...10 V, 6 Nm, 2 s A6V11991165 GAP191.
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Application sheet VVS274 Connection diagram Application configuration Group Equipment Values/range Template settings On-board output Exhaust air VAV position Y10; 0...10 V Y1, Y2 Y10, 0..10V Fume hood stabilizing jet Y10, Y20; Y30; Y40, 0...10 V Y20 Extract air differential pressure X1; 0..10V, 4..20mA; SCOM SCOM Fume hood sash position 1 B1; B2; 0..10kOhm B1 Fume hood face velocity X1; X2; X3; X4; 0..
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Application sheet VVS274 Group A6V12189448_en--_a Equipment Values/range Fume hood fire detector D1; D2; D3; X1; X2; X3; X4; NO (normally open) Fume hood presence detector 1...2 D1; D2; D3; X1; X2; X3; X4; NC Brightness X1; X2; X3; X4; 0..10 V Fume hood remote emergency purge switch D1; D2; D3; X1; X2; X3; X4; NO Fume hood sash alert switch D1; D2; D3; X1; X2; X3; X4; NO Fume hood sash switch 1...2 D1; D2; D3; X1; X2; X3; X4; NO Binary input 1...
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Application sheet VVS274 Engineering ● The ABT Site engineering tool is required to engineer DXR2 automation stations. ● See the Siemens Download Center at www.siemens.com/bt/download for the latest application configurations and workflow tutorials. ● Options combined as per available on-board - I/Os.
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Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2021 Technical specifications and availability subject to change without notice.