Room thermostats with KNX communications RDG200KN & RDG260KN For fan coil units, universal applications and compressors in DX-type equipment applications ● ● ● ● ● ● ● ● ● ● ● ● ● ● A6V11545853_en--_a 2020-09-07 KNX bus communication (S-Mode, LTE-Mode) Built-in temperature and humidity sensor Control room temperature and humidity level Green leaf indication RDG200KN triac control outputs for On/Off, PWM or 3-position RDG260KN control outputs for DC 0...
Functions Control application The RDG2..
Setpoints and display ● Min. and max. limitation of room temperature setpoint: – Comfort limitation (min. and max. limitation) – Energy saving concept (min. and max.
● – Coil temperature sensor – External temperature limit – Hotel presence detector Selectable relay functions – Switching off external equipment during Protection mode – Switching on external equipment (e.g.
Applications for fan coil systems Applications, DIP setting, control outputs ● 2-pipe fan coil unit ● 2-pipe fan coil unit with electric heater ● 2-pipe fan coil unit with radiator/floor heating Using RDG200KN, RDG260KN Using RDG200KN, RDG260KN Using RDG200KN, RDG260KN ● ● ● 2-pipe/2-stage fan coil unit Using RDG200KN, RDG260KN ● 4-pipe fan coil unit Using RDG200KN, RDG260KN 4-pipe fan coil unit with PICV and 6-port ball valve as changeover YHC YH YC YE 4-pipe fan coil unit with electric h
Applications for universal systems Applications, DIP setting, control outputs ● Chilled/heated ceiling ● Chilled/ heated ceiling and electric heater ● Chilled/heated ceiling and radiator/floor heating Using RDG200KN, RDG260KN Using RDG200KN, RDG260KN ● ● Using RDG200KN, RDG260KN ● 2-stage chilled/heated ceiling Using RDG200KN, RDG260KN ● Chilled ceiling and radiator Using RDG200KN, RDG260KN Chilled and heated ceiling control with 6port ball valve Using RDG260KN Chilled and heated ceiling co
Application for heat pump systems Applications, DIP setting, control outputs ● Heated or cooled with compressors ● Heated or cooled with compressors with electric heater Using RDG200KN, RDG260KN Using RDG200KN, RDG260KN ● ● Heated and cooled with compressors 2-stage heated or cooled with compressors Using RDG200KN, RDG260KN Using RDG200KN, RDG260KN N1 Thermostat Output Y10/Q1: Heating or heating/cooling Output Y20/Q2: Cooling only (heating/cooling) B1 Return air temperature sensor or external r
Type summary For fan coil units, universal applications and compressors in DX-type equipment applications Product no. Stock no. Operating voltage Fan Number of control outputs 3-speed DC On/Off PWM Built-in sensor 3-pos DC On/Off Humidity, (3-wire) temperature RDG200KN S55770-T409 AC 24 V or AC 230 V ✓ ✓ 1) 3 3 2 ‒ 2 ✓ RDG260KN S55770-T412 AC 24 V or DC 24 V ✓ ✓ 1) ‒ ‒ ‒ 3 ‒ ✓ ‒ ✓ 1) ‒ ‒ ‒ ‒ 1) 2) 2 2) The terminal Y50 is used as DC 0…10 V output.
Type of unit Product no. Condensation monitor Flush-mount KNX room sensor (base and front module) Wall-mounted KNX sensors Datasheet *) QXA21.. A6V10741072 AQR2570N.. AQR2532NNW AQR2533NNW AQR2535NNW 1411 QMX3.P30 QMX3.P70 1602 On/Off actuators Type of unit Product no. Electromotive On/Off actuator Electromotive On/Off valve and actuator (only available in AP, UAE, SA and IN) Zone valve actuator (only available in AP, UAE, SA and IN) Datasheet *) SFA21.. SFA71.. 4863 MVI../MXI..
Type of unit Product no. Datasheet *) Electric actuator, 3-position (for small valves 2.5 mm) AC 230 V SSP31.. 4864 Electric actuator, 3-position (for small valves 5.5 mm) AC 230 V SSB31.. 4891 Electric actuator, 3-position (for small valve 5 mm) AC 230 V SSD31.. 4861 Electric actuator, 3-position (for valves 5.5 mm) AC 230 V SAS31.. 4581 Rotary actuators for ball valves, 3position GDB331.9E 4657 Rotary actuators for ball valves, 2 or 3position GDB141.9E GDB341.
Type of unit Product no. Datasheet *) Electrothermal actuator, AC 24 V, NC, DC 0…10 V, 1 m STA63 4884 Electrothermal actuator, AC 24 V, NO, DC 0…10 V, 1 m STP63 4884 Rotary actuators for ball valves AC 24 , DC 0…10 V GDB161.9E 4657 KNX actuators Type of unit Product no. Rotary actuators for ball valves KNX S-Mode GDB111.9E/KN Datasheet *) A6V10725318 The documents can be downloaded from http://siemens.
Mechanical design The room thermostat consists of two parts: ● Plastic housing with electronics, operating elements, and room temperature sensor ● Mounting plate with screw terminals The housing engages in the mounting plate and is secured with 2 screws.
Display # Symbol Description # Symbol Description 1 Operating mode selection 2 Fan speed selection 3 Escape 4 Confirm parameters 5 Outside temperature 6 Additional user information, such as outside temperature, time of day from KNX bus, relative humidity 7 Morning: 12-hour format (via bus), Afternoon: 12-hour format (via bus) 8 Relative humidity 9 Degrees Celsius or Fahrenheit 10 Parameter 11 Value with thermometer: Digits for room temperature display 12 Digits for setpoint disp
Green leaf indication The green leaf indication is an energy-efficient setting and indicates the end user settings: ● Green leaf: Settings are within the preset energy-efficient range ● Red leaf: Settings exceed the preset energy-efficient range Green leaf functionality is configured via P110: ● 0 = Disabled (OFF) ● 1 = Green and red dimmed out ● 2 = Green dimmed out / red fixed ● 3 = Green and red fixed Within the preset energy-efficient Exceed the preset energy-efficient Return to the preset energy-effici
Notes Security CAUTION National safety regulations Failure to comply with national safety regulations may result in personal injury and property damage. ● Observe national provisions and comply with the appropriate safety regulations. Mounting and installation Mounting ● The devices are suitable for wall mounting. ● Recommended height: 1.5 m above the floor. ● Do not mount the devices in recesses, shelves, behind curtains or doors, or above or near heat sources. ● Avoid direct solar radiation and drafts.
● Properly size the cables to the thermostat, fan and valve actuators for AC 230 V mains voltage. ● Use valve actuators rated for AC 230 V / AC 24 V / DC 24 V depending on mains voltage. ● Inputs X1-M, X2-M or U1-M: Multiple switches (e.g. summer/winter switch) may be connected in parallel. Consider overall maximum contact sensing current for switch rating. ● When mains voltage is AC 230 V, SELV inputs X1-M, X2-M and U1-M use cables with min. 230 V insulation.
● ● Scan the antenna area without powering on the thermostat. Scan the NFC area without unpacking the thermostat from the individual box. Unpowered thermostat from individual package Antenna area Notes ● Each time the application is changed, the thermostat reloads the factory settings for all control parameters excepting KNX device and zone addresses. ● The commissioning via Siemens smartphone application PCT Go for Android™ can be disabled via parameters to avoid unexpected changes of the thermostat.
Setpoint and range limitation We recommended to review the setpoints and setpoint ranges (P011, P013…P016, P019, P020) and change them as needed to achieve maximum comfort and save energy. Programming mode The programming mode helps to identify the thermostat in the KNX network during commissioning. Touch both the left and right buttons simultaneously for 6 seconds to activate programming mode, which is indicated on the display with PROG.
Technical data Power supply (RDG200KN) Operating voltage (L-N) AC 24 V ±20 % or AC 230 V +10/-15 % (selectable via slider) Frequency 50/60 Hz Power consumption 4 VA @ AC 24 V 7 VA @ AC 230 V ● No internal fuse! External preliminary protection with max. C 10 A circuit breaker required in all cases. ● Before switching on power, select the right power supply needed using the power switch on the rear of the device.
Power supply (RDG260KN) Operating voltage (G-G0) DC 24 V: Make sure to connect G to + and G0 to - AC 24 V ±20 % DC 24 V ±2 V Frequency 50/60 Hz Power consumption 4 VA @ AC 24 V No internal fuse! External preliminary protection with max. C 10 A circuit breaker required for all cases.
Multifunctional inputs Digital input Operating action Selectable (NO/NC) Contact sensing DC 0…5 V, max. 5 mA Insulation against mains SELV KNX bus Interface type KNX, TP Uart 2 (electrically isolated) Bus current 5 mA Bus topology: See KNX manual ("Reference documentation") Operational data Switching differential, adjustable Heating mode (P051) 1 K (0.5…6 K) Cooling mode (P053) 1 K (0.5…6 K) Heating mode (P050) 2 K (0.5…6 K) Cooling mode (P052) 1 K (0.
Environmental conditions Storage IEC 60721-3-1 Climatic conditions Class 1K3 Temperature -25…65 °C Humidity < 95 % r.h. Transport IEC 60721-3-2 Climatic conditions Class 2K3 Temperature -25…65 °C Humidity < 95 % r.h. Mechanical conditions Class 2M2 Operation IEC 60721-3-3 Climatic conditions Class 3K5 Temperature 0…50 °C Humidity < 95 % r.h. Standards and directives EU conformity (CE) A5W00120120A* Electronic control type 2.
General Connection terminals Solid wires or stranded wires with wire-end sleeves 1 x 0.4…2.5 mm2 or 2 x 0.4…1.5 mm2 Minimal wiring cross section on L, N, Q1, Q2, Q3, Y1, Y2, Y3, Y4 Min. 1.5 mm2 Maximal wiring cross section on L, N, Q1, Q2, Q3, Y1, Y2, Y3, Y4 Max. 2.5 mm2 Housing front color RAL 9016 white Weight without/with packaging RDG200KN RDG260KN 266 g/336 g 242 g/311 g Reference documentation Handbook for Home and Building Control Basic Principles (https://my.knx.
Diagrams Connection terminals RDG200KN L, N X1, X2 U1 M CE+, CEQ1 Q2 Q3 Q1…Q3 Y1…Y4 Y50 Operating voltage AC 230 V / AC 24 V Multifunctional input for temperature sensor (NTC 3k or LG-Ni1000) or potential-free switch (function can be selected via parameter) Same as multifunctional inputs X1, X2 Measuring neutral for sensors and switches KNX Bus + and – terminals Control output for fan speed I AC 230 V / AC 24 V Control output for fan speed II AC 230 V / AC 24 V Control output for fan speed III AC 230 V /
Connection diagrams RDG200KN DC 0…10 V fan Application V1 2-pipe YHC V2 Terminals Control outputs: 1-speed/3-speed fan V3 Y1 Y3 2-pos (PWM) V1 3-pos V1 V1 Y1 Y3 Y2 Y4 Y50 Q1 Q2 Q3 Y1 Y3 Y2 Y4 ✓ ✓ ✓ ✓ V1 ✓ ✓ ✓ ✓ V1 V1 Y50 Q1 Q2 Q3 Y1 Y3 Y2 Y4 ✓ ✓ ✓ ✓ V1 V2 ✓ ✓ ✓ ✓ V1 V2 ✓ ✓ ✓ ✓ V1 V1 V2 2-pipe with radiator 4-pipe 2-pipe/2-stage YHC YR YH YC YHC1 YHC2 Control outputs: 2-pos 2-pos (PWM) (PWM) V1 V2 2-pos 3-pos (PWM) V1 V2 3-pos 2-pos
RDG260KN DC 0…10 V fan Application V1 2-pipe YHC V2 Terminals Control outputs: 2-pipe with electric heater 4-pipe with electric heater Y20 Y30 V1 DC DC DC On/Off Q1 Q2 V2 On/Off DC V1 On/Off On/Off V1 V2 Q1 Q2 YHC Y50 Q1 Q2 Q3 Y10 Y20 Y30 ✓ ✓ ✓ ✓ V1 ✓ ✓ ✓ ✓ DC DC DC On/Off Y20 V1 V2 Y30 V1 V2 V2 On/Off DC V1 On/Off On/Off V1 V2 Q1 Q2 YH Y10 Y50 Q1 Q2 Q3 Y10 Y20 Y30 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ V1 V2 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Y50 Q1 Q2 Q3 Y
RDG260KN Chilled/heated ceiling with 6-port control ball valve 4-pipe with 6-port ball valve as changeover and PICV Application N2 Room thermostat RDG260KN V3 6-port modulating control actuator S1, S2, S3 Switch (keycard, window contact, presence detector etc.) V4 PICV control valve B1, B2, B3 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.
Dimensions Dimensions in mm (inch) Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies 28 Siemens Smart Infrastructure Document ID A6V11545853_en--_a Edition 2020-09-07 © Siemens Switzerland Ltd, 2020 Technical specifications and availability subject to change without notice.
