User Manual

Application Sheet INT151
Supply and extract VAV with KNX PL-Link VAV controller, heating
and cooling coil, hot water radiator on triac output including
lighting and blinds operation
DXR2..18-
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
A6V10662238_en--_c_--_04
∂ Supply & extract air volume control with compact KNX PL-Link VAV controller
∂ Room temperature control
∂ Heating with LTHW radiator on triac output
∂ Downdraft compensation
∂ Including the control of 4 lighting zones & 2 blinds
∂ Room temperature and rapid ventilation operation via KNX PL-Link room operator unit with
temperature measurement & lighting and blinds operation
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
D1 Window contact YC Cooling coil valve
D2 Presence detector YE Extract air control
Q2, Q3, 4 lighting zones YH Heating coil valve
Q4, Q5 YR Radiator valve
Q6, Q7 2 blinds motors YS Supply air control
Function diagrams Heating and cooling valve Airflow
SpC Effective cooling setpoint
VavSuAirFlMinC
Min. volume, cooling
SpH Effective heating setpoint
VavSuAirFlMinH
Min. volume, heating
TR Room temperature Y Output signal
V Volume flow rate YC Cooling valve
VavSuAflMinVent
Min. air flow ventilation YH Heating valve
VavSuAirFlMaxC
Max. volume, cooling YR Radiator valve
VavSuAirFlMaxH
Max. volume, heating