User Manual

Application Sheet FCU045
Fan coil unit with staged fan, 6-way heating/cooling coil (4 pipe) on
analog output
DXR2..09-
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.
2019-02-21
A6V10662231_en--_c_--_05
Description
of functions
Basic functions Options
∂ PID control for heating and cooling.
∂ The 4 pipe system provides hot and chilled water for
the heating/cooling coil.
∂ 6-way valve 0...10 V controlled by analog output for
heating and cooling.
∂ The fan is controlled manual on the room operator unit
or automatic in 3 speeds.
∂ 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.
∂ The air flow for heating and cooling is operated in
sequence to the valves. Parallel operation can be
configured.
∂ Optimal energy efficiency by including the option for
room/supply air cascade control, 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 with
fan coil unit application.
∂ Standard hot and cold 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.
∂ 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
o Analog extract air temperature sensor
∂ 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, 3 DO relays, 3 AO 0…10 V
N9204
N9206
DXR2.E09-101A
DXR2.M09-101A
1
R1 KNX PL-Link room operator unit with temperature
sensor, segmented backlit display, touchkeys
N1602 QMX3.P34 1
YHC 6-way valve A6V10564480 VWG41.20.. 1
Electromotive actuator, AC 24 V, DC 0...10 V N4657 GDB161.9E 1
Optional
1)
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
D1 Door/window contact, white
2)
S 290/11
3)
D2 KNX PL-Link presence detector with brightness sensor
2)
UP 258D12 1 - 4
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.