Data Sheet for Application

Application Sheet
RAD011/RAD011_H
Hot water radiator on triac output
DXR2..09T-101A
2 / 6
Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2021-09-08
A6V10662233_en--_d_--_03
Description
of functions
Basic functions
Options
• PID control for heating.
• 3-position valves are controlled by triac outputs for
heating.
• The temperature is measured in the room operator
unit.
• The application allows customers to adjust the room
temperature setpoints via the room operator unit.
• The operating modes are Comfort, Pre-Comfort,
Economy and Protection.
• Change of operating mode via room unit, presence
detector, window contact or central command.
• Downdraft compensation.
• Outside temperature (for downdraft compensation)
distributed over BACnet.
• 2
nd
radiator.
• Optimal energy efficiency by presence detector or
window contact.
• Optional system alarms displayed on the management
station notify building operators of possible faults.
• Optional trends can be activated for room sensors.
Auxiliary functions
Variants
• Green Leaf (RoomOptiControl) function.
• Multisegment use of DXR2 automation stations.
• Standard hot water supply chain control.
• The application allows for control via centralized
commands (e.g. scheduler program for room operating
mode).
• Central optimum start control provides best room
comfort at the start of occupancy.
• Central operation or reset of setpoints, timed valve
kick function or outside temperature dependent
heating limit.
• Central override functions for valves.
• Seasonal compensation of room temperature
setpoints.
• PWM constant (incl. spring return) or PWM thermal
control can be selected for valves.
• The room temperature can be measured by:
o KNX PL-Link wall-mount sensor
o KNX PL-Link flush-mount room operator unit
o KNX PL-Link flush-mount sensors
• Presence can be detected by KNX PL-Link sensor or
binary sensor.
Siemens devices
Legend
Type of unit
Data sheet
Product No.
Qty.
DXR2…
Compact room automation station, BACnet/IP, 230 V,
flat housing, 1 DI, 2 UI, 1 DO relay, 4 DO triacs,
1 AO 0…10V
N9204
N9206
DXR2.E09T-101A
DXR2.M09T-101A
1
R1
KNX PL-Link room operator unit with temperature
sensor, segmented backlit display, touchkeys
N1602
QMX3.P34
1
YR1
2-port, 3-port valve or 3-port valves with bypass, PN16
N4847
V..P47..
1
Motorized 3-positioning actuator for V..P47.., AC 24 V
N4864
SSP81..
1
Optional
1)
Legend
Type of unit
Data sheet
Product No.
Qty.
D1
Door/window contact, white
2)
S 290/11
3)
D2
KNX PL-Link presence detector with brightness sensor
2)
UP 258D12
1 - 4
YR2
2-port, 3-port valve or 3-port valves with bypass, PN16
N4847
V..P47..
1
Motorized 3-positioning actuator for V..P47.., AC 24 V
N4864
SSP81..
1
1)
Can be combined according to available on-board I/Os on controller.
2)
Further documents on www.siemens.com/gamma-td.
3)
Type of operation (NO or NC). Multiple devices of the same type can be connected.