Data Sheet for Application

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Application Sheet

INT201

Fan coil unit with staged fan, heating and cooling coil (4 pipe) on

triac output including lighting and blinds operation

DXR2..10-101A

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.

2021-09-02

A6V10662235_en--_d_--_03

• Heating with LTHW and cooling with CHW

• Modulating control of heating and cooling valve (4 pipe) on triac output

• Automatic or manual 3-speed fan control

• Including the control of 4 lighting zones & 2 blinds

• Room temperature and fan speed operation via KNX PL-Link room operator unit with temperature

measurement & lighting and blinds operation

Plant diagram

DXR2…

Room automation station

Extract air temperature sensor

Q6, Q7

2 blinds motors

Supply air temperature sensor

Room

Window contact

Room operator unit with

Presence detector

temperature sensor

3-speed fan

Cooling coil valve

Q2, Q3,

4 lighting zones

Heating coil valve

Q4, Q5

Function diagrams

Heating/cooling valves

1-2-3 speed fan

Fan output signal

SpH

Effective heating setpoint

Q1.1

Fan speed 1

Room temperature

Q1.2

Fan speed 2

Valve output signal

Q1.3

Fan speed 3

Cooling coil valve

SpC

Effective cooling setpoint

Heating coil valve

SpC

100

Y [%]

TR [°C]

SpH

SpC

100

Y [%]

TR [°C]

SpH

Q [%]

Summary of content (8 pages)

PAGE 1
Application Sheet INT201 DXR2..
PAGE 2
Application Sheet INT201 Fan coil unit with staged fan, heating and cooling coil (4 pipe) on triac output including lighting and blinds operation Description of functions Basic functions HVAC • PID control for heating and cooling. • The 4 pipe system provides hot and chilled water for the heating coil and the cooling coil. • 3-position valves are controlled by triac outputs for cooling and heating. • The fan is controlled manual on the room operator unit or automatic in 3 speeds.
PAGE 3
Application Sheet INT201 DXR2..10-101A Fan coil unit with staged fan, heating and cooling coil (4 pipe) on triac output including lighting and blinds operation Auxiliary functions • Green Leaf (RoomOptiControl) function. • Multisegment use of DXR2 automation stations with fan coil unit application. • Standard hot water supply chain control. • The application allows for control via centralized commands (e.g. scheduler program for room operating mode).
PAGE 4
Application Sheet INT201 Fan coil unit with staged fan, heating and cooling coil (4 pipe) on triac output including lighting and blinds operation Variants DXR2..10-101A Legend Type of unit Data sheet Product No. Qty. R1a KNX PL-Link wall-mount room sensor for temperature N1602 QMX3.P30 1 R1b KNX PL-Link flush-mount room operator unit N1601 QMX3.
PAGE 5
Application Sheet INT201 DXR2..
PAGE 6
Application Sheet INT201 Fan coil unit with staged fan, heating and cooling coil (4 pipe) on triac output including lighting and blinds operation DXR2..
PAGE 7
Application Sheet INT201 DXR2..
PAGE 8
Application Sheet Fan coil unit with staged fan, heating and cooling coil (4 pipe) on triac output including lighting and blinds operation INT201 DXR2..10-101A Management station Sample presentation of a fan coil unit application with lighting and blinds operation on the Desigo CC management station. Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.