User Manual

Room automation
Desigo RX
Communicating room thermostats
4-68
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Siemens Switzerland Ltd
Building Technologies Division
4
Data sheet N3172
Operating voltage AC 24 V
Setpoint setting range 5...40 °C
Analog inputs‚ number 2
Analog outputs‚ number 1
Analog output‚ signal DC 0...10 V
Analog output‚ current Max. ±1 mA
Relay outputs‚ number 1
Relay outputs N.O. contact‚ potential-free
Relay output‚ switching voltage AC 230 V
Relay output‚ switching current Max. 5 (2) A
Type of fixing Recessed rectangular conduit box BS4662 (ARG71) with fixing
centres of 60.3 mm
Dimensions (W x H x D) 86 x 86 x 57 mm
Communication Bus: KNX (S-mode and LTE mode with Synco 700)
Stock No. Product No.
S55770-T106 RDU341
Semi Flush-mount room thermostat for rectangular conduit box with KNX
communications‚ for VAV application
Semi Flush-mount room thermostat for VAV application
- KNX communications
- Output for a DC 0…10 V actuator and AC 230V electrical heater (ON-OFF)
- 2 multifunctional inputs for keycard contact‚ external room / return air temperature (QAH11.1‚
QAA32)‚ heat / cool changeover‚ operation mode changeover‚ window contact on/off‚ dewpoint mon-
itor‚ electrical heater enabled‚ fault contact
- Operating modes: Comfort‚ Economy and Protection
-Modulating PI control
- Control depending on the room or the return air temperature
- Automatic or manual heating/cooling changeover
- Adjustable commissioning and control parameters
- Minimum and maximum setpoint limitation
- Adjustable minimum and maximum limitation for air flow signal DC 0...10V
- Output signal inversion as an option
Application selectable:
- Single-duct system
- Single-duct system with electrical heater
RDU341