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Application Sheet VAV041

Supply and extract VAV with analog damper actuator, heating and

cooling coil on triac output

DXR2..12P-

102A

1 / 8

Technical information in this document are subject to change. Drawings serve illustration purposes only.

Siemens is not responsible for content and any manual modifications.

2019-02-21

A6V10662236_en--_c_--_01

∂ Supply & extract air volume control with analog damper actuator

∂ Room temperature control

∂ Air quality control

∂ Room temperature and rapid ventilation operation via KNX PL-Link room operator unit with

temperature, air quality & relative humidity measurement

Plant diagram

DXR2… Room automation station R Room

B1 Extract air temperature sensor R1 Room operator unit with

B3 Supply air temperature sensor temperature sensor

B4 Differential pressure sensor (supply air) YC Cooling coil valve

B5 Differential pressure sensor (extract air) YE Extract air control

D1 Window contact YH Heating coil valve

D2 Presence detector YS Supply air control

Function diagrams Heating and cooling valve Air flow

SpC Effective cooling setpoint

VavSuAirFlMaxH

Max. volume, heating

SpH Effective heating setpoint

VavSuAirFlMinC

Min. volume, cooling

TR Room temperature

VavSuAirFlMinH

Min. volume, heating

V Volume flow rate Y Output signal

VavSuAflMinVent

Min. air flow ventilation YC Cooling valve

VavSuAirFlMaxC

Max. volume, cooling YH Heating valve

Summary of content (8 pages)

PAGE 1
Application Sheet VAV041 DXR2..
PAGE 2
Application Sheet VAV041 Supply and extract VAV with analog damper actuator, heating and cooling coil on triac output Description of functions Siemens devices DXR2..12P-102A Basic functions ∂ PID control for supply VAV, temperature and air quality. ∂ Supply air differential pressure control sensor integrated in controller. ∂ Internal air flow controller controls supply air damper actuator 0…10 V. ∂ The temperature and air quality (CO 2) is measured in the room operator unit.
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Application Sheet VAV041 Supply and extract VAV with analog damper actuator, heating and cooling coil on triac output Optional 1) DXR2..12P-102A Legend Type of unit Data sheet Product No. Qty. B1 Cable temperature sensor PVC 2 m, LG-Ni1000 N1831 QAP22 1 B3 Cable temperature sensor PVC 2 m, LG-Ni1000 N1831 QAP22 1 B5 Differential pressure sensor, AC 24 V, DC 0...
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Application Sheet VAV041 DXR2..12P-102A Supply and extract VAV with analog damper actuator, heating and cooling coil on triac output B1 Connection diagram B5 T R1a, b, c R1 T V D2 T + - + - BACnet IP D1 + - *D2 a B3 T BACnet IP Y1 AC 24 V G Y2 Y1 M G M YC Y2 Y YS Y1 G Y2 Y1 M rd YS a G0 Y M YH YCa G G G0 M YE YH a G Y2 M YEa *3 party device 4/ 8 Technical information in this document are subject to change. Drawings serve illustration purposes only.
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Application Sheet VAV041 Supply and extract VAV with analog damper actuator, heating and cooling coil on triac output DXR2..12P-102A Application configuration On-board output Equipment Supply air VAV position Supply air VAV differential air pressure KNX PL-Link devices Room operator unit device 1 HVAC Supply air VAV Values/Range Y1, Y2; 3-position Y10; 0...10 V Air volume flow; Y10; 0...10 V X1; 0...10 V X2; 0...10 V P1 QMX3.P02, QMX3.P34, QMX3.P36, QMX3.P37, QMX3.
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Application Sheet Supply and extract VAV with analog damper actuator, heating and cooling coil on triac output VAV041 DXR2..
PAGE 7
Application Sheet Supply and extract VAV with analog damper actuator, heating and cooling coil on triac output Engineering VAV041 DXR2..12P-102A ∂ ABT Site engineering tool is required to configure the DXR2 automation stations. ∂ See the Siemens Download Center at www.siemens.com/bt/download for the latest application configuration and workflow tutorials. ∂ Option combination according to available on-board I/Os on controller.
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Siemens Switzerland Ltd Building Technologies Division International Headquarters Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 www.siemens.com/buildingtechnologies © 2015 Siemens Switzerland Ltd Subject to change 8/ 8 Technical information in this document are subject to change. Drawings serve illustration purposes only. Siemens is not responsible for content and any manual modifications.