s Room thermostat with display, for VAV RDG400 Basic Documentation Edition: 1.
Contents 1 About this document ............................................................................... 4 1.1 Revision history.......................................................................................... 4 1.2 Reference documents ................................................................................ 4 1.3 Before you start.......................................................................................... 4 1.3.1 Copyright ................................................
7.1 7.2 General .................................................................................................... 39 Dimensions .............................................................................................. 39 8 Technical data ........................................................................................ 40 Index .................................................................................................................
Edition Date 1 About this document 1.1 Revision history Changes Section Pages all all 9 29 33 38 40 31 1.4 2015-05-20 · Add inch dimensions · Add degree Fahrenheit information 1.3 2015-02-17 Add UL mark, temp unit selection wizard and degree Fahrenheit for RDG US variants 1.2 August 2009 Parameter d01 (diagnostics) 4.1 4.12 5.1 6.2 8 4.12.2 1.1 June 2009 Layout and language corrections all 1.0 May 2009 First edition 1.2 Ref.
1.3.3 Document use/request to the reader Before using our products, it is important that you read the documents supplied with or ordered at the same time as the products (equipment, applications, tools etc.) carefully and in full. We assume that persons using our products and documents are authorized and trained appropriately and have the technical knowledge required to use our products as intended.
2 Summary 2.1 Brief description Applications · · · · Features · 2 multifunctional inputs and 1 digital input for keycard contact, external sensor, etc.
2.2 Types and features Product no. Operating voltage Number of control outputs On/Off RDG400 1) AC 24 V 1 PWM 1 1) 3-pos 1 1) DC 0…10 V 1 ü Either On/Off, 3-position or PWM (triac outputs) 2.3 Equipment combinations Description Cable temperature sensor, cable length 2.
GDB181.1E/3 VAV compact controller 3544 GLB181.1E/3 On/Off actuators AC 24 V 3-position actuators AC 24 V Electromotoric On/Off valve and actuator (only available in AP, UAE, SA and IN) MVI../MXI.. 4867 Electromotoric On/Off actuator SFA71.. 4863 Thermal actuator (for radiator valves) STA71.. 4877 Thermal actuator (for small valves 2.5 mm (0.1")) STP71.. 4878 Electrical actuator, 3-position (for radiator valve) SSA81.. 4893 Electrical actuator, 3-position (for small valve 2.5 mm (0.
General notes 4 Functions 4.1 Temperature control Setting of the control parameters (P01, etc., mentioned throughout the document) is described in section 4.12. The thermostat acquires the room temperature via built-in sensor, external room temperature sensor (QAA32), or external return air temperature sensor (QAH11.1), and maintains the setpoint by delivering actuator control commands to heating and/or cooling equipment.
4.2 Operating modes Select the thermostat's operating mode via the operating mode button on the unit or operating mode input (e.g. keycard occupancy sensor, when X1, X2, or D1 is set to 3 (P38, P40, P42). A corresponding setpoint is used to maintain the room temperature at the desired level depending on the active operating mode. The following operating modes are available: Comfort mode In Comfort mode, the thermostat maintains the room temperature setpoint which can be adjusted via the rotary knob.
4.3 Room temperature Setpoints Comfort mode The setpoint in Comfort mode can be adjusted via the rotary knob. Setpoint limitation For Energy Saving purposes, the setpoint setting range can be limited to minimum (P09) and maximum (P10). P09 < P10 · If the minimum limit P09 is set lower than the maximum limit P10, both heating and cooling are adjustable between these 2 limits. P09 ≥ P10 · For heating or cooling applications (e.g.
Caution If a setpoint is set to OFF (P65, P66), the thermostat does not maintain the setpoint in the corresponding mode (heating or cooling). This means no protective heating or cooling function and thus risk of frost in the heating mode or risk of overtemperature in cooling mode! 4.4 Setpoints and sequences On single-duct changeover applications, the Comfort setpoints for heating and cooling sequence are the same (w).
Comfort mode Heating mode Cooling mode Application Single-duct with heating/cooling coil Y YHC W YHC YHC Y T Economy mode Heating mode Cooling mode W Y YHC Y W HeatEco W CoolEco T T W HeatEco W CoolEco T Protection mode Heating mode Cooling mode Y YHC W HeatProt W CoolProt T Y YHC W HeatProt W CoolProt T W = setpoint in Comfort mode W HeatEco/Prot = setpoint heating in Economy or Protection mode W CoolEco/Prot = setpoint cooling in Economy or Protection mode YR = radiator sequence YE =
4.5 Applications overview The thermostat supports the following applications, which can be configured via DIP switches at the rear of the unit. The control output for the damper actuator is either DC 0…10 V (factory setting) or 3-position (see parameter P47), and for the heating/cooling output On/Off, PWM, 3-position or DC 0…10 V.
4.6 Additional features Output signal inversion The output signal DC 0…10 V (Y10) can be inverted by means of DIP switch 4 (see section 4.7.3). Min/Max air flow To ensure a minimum or maximum supply air volume, the output signal for the air flow (DC 0...10 V or 3-position) can be limited to a minimum value via parameter P63 and to a maximum value via parameter P64. Both values can be set between 0% and 100%.
Remote heating/ cooling changeover The QAH11.1 cable temperature sensor for automatic heating/cooling changeover can be replaced by an external switch for manual, remote changeover: Contact open à heating mode Contact closed à cooling mode The sensor or switch can be connected to input terminal X2 (factory setting) or X1 or D1 (switch only), depending on the commissioning of the inputs (P38, P40, P42). See also section 4.9.
The input must be commissioned accordingly (P38, P40, P42). See section 4.9. Button lock If the button lock function is enabled by parameter P14, the buttons will be locked or unlocked by pressing the right button for 3 seconds. If “Auto lock” is configured, the thermostat will automatically lock the buttons 10 seconds after the last adjustment. Operating mode switchover contact (window contact) The thermostat can be forced into Economy mode (e.g. when a window is opened).
4.7 Control sequences 4.7.1 Applications and sequences Application VAV Single-duct Sequences h ( \ ), c ( / ) Single-duct & electric heater el.h + c ( 7\ / ) Single-duct & radiator rad + c ( r\ / ), Single-duct with heat/cool coil h+c( \/) 4.7.2 Sequences overview (setting via parameter P01) The sequence can be set via parameter P01, if available.
Application ê Modulating DC 0…10 V On/Off (2-position) Control outputs Modulating 3-position Control outputs configuration (setting via DIP 4/5 and parameters P46/P47) Modulating PWM (2-position) 4.7.
4.7.4 Single-duct, heating or cooling Single-duct On single-duct applications, the thermostat controls an actuator (air damper, VAV system, valve etc.)… – in heating/cooling mode with changeover (automatic or manual), – heating only mode, – or cooling only mode. Cooling only is factory-set (P01=1). The output signal for the air flow can be limited to a minimum and maximum value if required (see section 4.6).
4.7.5 Single-duct with electric heater On single-duct applications with electric heater, the thermostat controls a valve plus an auxiliary electric heater. Parameter P01 is not available. The output signal for the air flow can be limited to a minimum and maximum value if required (see section 4.6 for details). Electrical heating, active in cooling mode The air flow starts to rise when the acquired room temperature is above setpoint plus dead zone.
4.7.6 Single-duct with radiator or floor heating Single-duct with radiator or floor heating On single-duct applications with radiator or floor heating, the thermostat controls a valve plus an electric heater. Parameter P01 is not available. The output signal for the air flow can be limited to a minimum and maximum value if required (see section 4.6 for details). The air flow starts to rise when the acquired room temperature is above setpoint plus dead zone.
4.7.7 Single duct with heating/cooling coil Single-duct with heating/cooling coil On single-duct applications with heating/cooling coil, the thermostat controls an actuator (air damper, VAV system, etc.) plus a heating/cooling water coil. The output signal for the air flow can be limited to a minimum and maximum value if required (see section 4.6 for details).
4.8 Overview of control outputs Control outputs Different control output signals are available depending on the configuration of thermostat via DIP switches 4 and 5, and parameters P46 and P47. Control output Modulating DC 0…10 V Product No. RDG400 Y10 2-position On/Off 2-position PWM Modulating 3-position Y1 Y1 Y1/Y2 (1 x / ) Refer to section 4.7.3 for how to configure the control outputs. 4.8.
4.8.2 On/Off control signal (2-position) Control output for electric heater, radiator and heating/cooling coil The valve receives an ON command via control output Y1 when… 1. 2. the acquired room temperature is below the setpoint (heating mode) or above the setpoint (cooling mode), the control outputs have been inactive for more than the "Minimum output offtime" (factory setting 1 minute, adjustable via parameter P48). The OFF command for valve output when… 1. 2.
3-position control signal Output Y1 provides the OPEN command, and Y2 the CLOSE command to the 3position actuator. The factory setting for the actuator’s running time is 150 seconds. It can be adjusted via parameter P44 (Y1 and Y2). The parameter is only visible if 3-position is selected via DIP switch 5. Synchronization 1. 2. 3.
4.9 Multifunctional input, digital input The thermostat has 2 multifunctional inputs X1 and X2 and 1 digital input D1. A sensor type NTC like the QAH11.1 (AI, analog input) or a switch (DI, digital input) can be connected to the input terminals. The functionality of the inputs can be configured via parameters P38 for X1, P40 for X2, and P42 for D1.
4.10 Temperature out of range Handling of faults When the room temperature is outside the measuring range, i.e. above 49 °C (120 °F) or below 0 °C (32 °F), the limiting temperatures blink, e.g. "0 °C (32 °F)" or "49 °C (120 °F)". The heating output is activated if the current setpoint is not set to "OFF", the thermostat is in heating mode and the temperature is below 0 °C (32 °F). For all other cases, no output is activated.
4.12 Control parameters A number of control parameters can be readjusted to optimize control performance. These parameters can also be set during operation without opening the unit. In the event of a power failure, all control parameter settings are retained. The control parameters are assigned to 2 levels: · "Service level", and · "Expert level" with "Diagnostics and test" The "Service level" contains a small set of parameters to set up the thermostat for the HVAC system and to adjust the user interface.
P01 Name Service level Control sequence Factory setting Range 1 = cooling only P04 Operating mode profile (operating mode button) Selection of °C or °F 0 (°C) P05 P06 Sensor calibration (internally, externally) Standard temperature display 0 K (0 °F) 0 P07 0 P08 Display info line (2nd line of LCD) Comfort setpoint 21 °C (70 °F) 0 = heating only 1 = cooling only 2 = H/C changeover manually 3 = H/C changeover automatically 1 = Comfort – Protection 2 = Comfort - Economy - Protection 0 = degrees
Name Factory setting Range P30 P31 P32 P33 P34 P35 P36 P37 P38 Expert level P-band/switching differential in heating mode P-band/switching differential in cooling mode P-band/switching differential for radiator Dead zone in Comfort mode Setpoint differential (wD) Integral action time Heating/cooling changeover cooling (X1/X2) Heating/cooling changeover heating (X1/X2) Functionality of X1 RDG400 Parameter 4.12.
Name Factory setting Range 0 = (no application) 1 = Single-duct 2 = Single-duct with electric heater 3 = Single-duct with radiator/floor heating 4 = Single-duct with H/C coil 0 = not activated (for DI) 1 = Activated (DI) 0…49 °C = Curr. temp. value (for AI) 00 = H/C input closed 100 = H/C input open 0 = not activated (for DI) 1 = Activated (DI) 0…49 °C = Curr. temp.
5 Handling 5.1 Mounting and installation Do not mount on a wall in niches or bookshelves, behind curtains, above or near heat sources, or exposed to direct solar radiation. Mount about 1.5 m (5 feet) above the floor. 2261 Z03 .. 150 cm (4 ft 11 in) cm . 20 min 74 in 7 .8 Mounting · The room thermostat must be mounted in a clean, dry indoor place and must not be exposed to drip or splash water Wiring See Mounting Instructions M3182 [3] enclosed with the thermostat.
Commissioning 1. Temperature unit selection wizard The temperature unit selection wizard enables to select the preferable temperature unit display on thermostat between °C and °F. 1. Rotate rotary knob to select the preferable temperature unit. 2. Press the button (OK) to confirm the selection, and the thermostat goes to normal operating page. · Pressing button (Esc) does not confirm the temperature unit selection. · If the temperature unit is not selected, °C is used by default.
5.2 Operation See also Operating Instructions B3181 enclosed with the thermostat. Layout 2 1 3 1 Operating mode button/Esc 2 Protection mode and OK 3 Rotary knob for setpoint and parameter adjustment Button operation · When the thermostat is in normal operation, the actual operating mode and status are indicated by symbols · When a button is pressed, the thermostat goes into mode selection.
17 16 15 LCD 14 13 12 11 1 2 3 4 5 6 6 7 # Symbol 8 10 Description # 1 Heating mode 10 Confirmation of parameters 2 Electric heater active 11 Degrees Celsius Degrees Fahrenheit 3 Cooling mode 12 Digits for room temperature and setpoint 4 Comfort mode 13 Button lock active 5 Economy mode 14 Condensation in room (dewpoint sensor active) 6 Protection 15 Fault 7 Escape 16 Temporary timer function (visible when operating mode is temporarily extended presence or absence) 8
G X1 M X2 G0 D1 6 Engineering 6.1 Connection terminals GND SELV G, G0 Operating voltage AC 24 V Y10/G0 Control output for DC 0…10 V actuator Y1/G, Y2/G Control output for On/Off, PWM or 3-position actuators X1, X2 Multifunctional input for temperature sensor (e.g. QAH11.
6.2 Note: Connection diagrams For details concerning connection of peripheral devices and setting of the DIP switches, please refer to Mounting Instructions M3182 [3]. Application: Single-duct V1 V1 DC 0…10 V damper actuator V1 3-position damper actuator N1 Room thermostat RDG400 S1..S3 Switch (keycard, window contact, etc.) B1, B2 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.
7 Mechanical design 7.1 General The room thermostat consists of 2 parts: · Plastic housing which accommodates the electronics, the operating elements and the temperature sensor · Mounting plate with the screw terminals The housing engages in the mounting plate and is secured with 2 screws on the left side. For operation details, refer to section 5.2. 7.2 Dimensions 4.0(0.16’’) 28.3 28.3 (1.11’’) (1.11’’) 28.5 (1.12’’) 9.0 (0.35’’) 128.0 (5.04’’) 4.0(0.16’’) 28.3 (1.11’’) 28.3(1.11’’) 28.3 (1.
8 Power supply Technical data Operating voltage DC 24 V: connect G to + and G0 to Frequency Power consumption External supply line protection (EU) Outputs Inputs Operational data SELV AC 24 V/DC 24 V or AC 24 V/DC 24 V class 2 (US) 50/60 Hz Max. 2 VA Circuit breaker max. 10 A Characteristic B, C, D according to EN 60898 or Power source with current limitation of max. 10 A No internal fuse. External preliminary protection with max.
Environmental conditions Standards Built-in room temperature sensor Measuring range Accuracy at 25 °C (77 °F) Temperature calibration range Settings and display resolution Setpoints Current temperature value displayed Operation Climatic conditions Temperature Humidity Transport Climatic conditions Temperature Humidity Mechanical conditions Storage Climatic conditions Temperature Humidity EU Conformity (CE) RCM conformity UL Electronic control type General Safety class Pollution class Degree of protecti
Index 3 3-position control signal ...................................... 24 3-position for air flow ........................................... 24 H Heating /cooling changeover ...............................27 Heating mode ......................................................18 A Absence ............................................................. 17 Air flow min/max ................................................. 15 Applications ........................................................
T Temperature out of range .................................... 28 Temporary setpoint ............................................. 11 W Window contact ..................................................
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