User Manual

ManualsBrandsSiemens ManualsBuilding automationGAMMA Catalog 2019

221

222

223

224

225

226

227

228

229

230

7-28

Heating, ventilation and air conditioning - room temperature control

Room temperature controllers with integrated sensing and operation

Wall-mounted

New Product

Siemens Switzerland Ltd

Building Technologies Division

2019www.siemens.com/gamma

Stock No. Product No. DT

S55624-H106 QMX3.P74 A

QMX3.P74 Room operator unit KNX with sensors for temperature, humidity, CO2,

segmented backlit display, touchkeys, white

Functions:

• multisensor for temperature, humidity and CO2

• Segmented backlit display and touchkeys

• Temperature control, adjustable as PWM control and/or modulating control (PID algorithm), for pure

heating mode, pure cooling mode, heating and cooling mode

• Operating modes switchable via KNX and/or display: Comfort mode, Pre-Comfort, energy savings and

protection mode

• Adjustable commissioning and control parameters for radiated heating, slow and fast, oor heating

slow and fast

• Integrated bus coupling unit

• 3 independently adjustable switching values for CO2 concentration and relative air humidity for air

quality control

• Actuating variable for 1, 2, or 3-stage fans (humidity and CO2)

• Actuating variable for 1, 2, or 3-point positioning signal (humidity and CO2)

• Setpoint for room temperature and relative humidity and CO2 concentration adjustable via KNX

Data sheet N1602

Dimensions (W x H x D) 88.4 x 133.4 x 18 mm