User Manual
Table Of Contents
- 1 Purpose of this document
- 2 Why is a healthy, productive indoor climate so valuable?
- 3 The role of building automation in health and productivity
- 4 Control applications and targets (CO2, VOC, RH, PM2.5)
- 5 Recommendations for specific building types
- 6 Monitoring indoor climate parameters for health and productivity
- 7 Controlling indoor climate parameters for health and productivity
- 8 Products for a healthy productive indoor climate
- Appendix 1: Indoor air quality (IAQ) – Combined CO2 and VOC sensors
- Appendix 2: Integration of RDF../RDG.. (KNX) in Desigo
- Appendix 3: Other indoor climate parameters – NO2, SO2, O3
- Appendix 4: Tender texts
- External references
- Siemens reference documents
- Glossary
Unrestricted 0 – Siemens Smart infrastructure Page 11
7.2 VAV control of CO2 and VOC
(A) Desigo Room Automation
with room sensors
Room controller DXR2..
Sensors
AQR2540NF + AQR2532NNW
Analog T output
and
AQR2548NF + AQR2530NNW
Analog IAQ output
(higher value of VOC and CO2)
Note: CO2 only analog output is
also possible
GDB181.1E/KN, or
GLB181.1E/KN
Connected to DXR2..
by KNX PL-Link
or
GDB181.1E/3, or
GLB181.1E/3
Connected to DXR2..
by DC 0/2…10 V (not shown)
VAV control of combined CO
2 and VOC
• Supply and extract air control
• External flow control for VAV with flow controller
and diff. pressure sensor
• Internal flow controller and diff. pressure sensor, or air speed sensor
• Cooling coil, heating/cooling coil, heating coil
• Electric heating coil, modulating, single- or 2-stage
• Room temperature control by 2-pipe system with c/o or 4-pipe system
• Supply air temperature cascade control,
air flow tracking for under/overpressure
• Radiator and chilled/heated ceiling control
• IAQ control
VAV system with cooling
VAV system with heating/cooling
VAV system with electric heating coil
Note: similar applications available for fan powered box