User Manual
Application Sheet
VAV042
Supply and extract VAV with integrated damper actuator, heating
and cooling coil on triac output
DXR2..10PL..
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Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2018-12-01
A6V11463709_en--_a
• Supply & extract air volume control with integrated damper actuator (10 Nm)
• 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 – integrated of DXR2)
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 (integrated of DXR2)
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
SpC
0
100
V [%] Y [%]
TR [°C]
YH
SpH
YC
VavSuAirFlMaxC
VavSuAirFlMinC
VavSuAirFlMinH
VavSuAirFlMaxH
SpC
0
100
V [%]
TR [°C]SpH
VavSuAirFlMaxC
VavSuAirFlMinC
VavSuAirFlMinH
VavSuAirFlMaxH
VavSuAflMinVnt