Lutron Electronics LR-HVAC-230-S Setup Manual
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Lutron Electronics LR-HVAC-230-S Setup Manual

Lutron Electronics LR-HVAC-230-S Setup Manual

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P/N 041475 Rev. A
LR-HVAC-230-S
LR-HVAC-230-S
Room Thermostat
LR-HVAC-230-S
Application and Set-Up Guide
1
Technical Support: +44.(0)20.7702.0657

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Summary of Contents for Lutron Electronics LR-HVAC-230-S

  • Page 1 P/N 041475 Rev. A LR-HVAC-230-S LR-HVAC-230-S Room Thermostat LR-HVAC-230-S Application and Set-Up Guide Technical Support: +44.(0)20.7702.0657...

  • Page 2: Table Of Contents

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Table of Contents About this document ............................4 Before you start ............................4 Document use / request to the reader ......................5 Summary ................................5 Applications ..............................5 Functions ..............................6 Integration via Modbus ..........................6 Compatible Accessory Devices by Siemens ....................7 Functions ................................9...
  • Page 3 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Table of Contents (continued) Functions (continued) Multifunctional input, digital input ........................31 Handling faults ............................32 Modbus RTU mode ............................32 Control parameters .............................34 Parameter setting via local HMI ......................34 Parameters of the “Service level” ......................35 Parameters of the “Expert level with diagnostics and test”...

  • Page 4: About This Document

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide About This Document Before you start 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.

  • Page 5: Summary

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Summary Applications Fan coil units via ON / OFF outputs: • 2-pipe system* • 2-pipe system with electric heater • 4-pipe system Chilled / heated ceilings (or radiators) via ON / OFF outputs: •...

  • Page 6: Functions

    RS 485 terminals MUX, _ and COM for communication with LutronR compatible devices • Integration via Modbus The LR-HVAC-230-S is a communicating thermostat with Modbus open protocol on RTU (Remote Terminal Unit) mode enabling easy integration into LutronR myRoomT and HomeWorksR QS solutions. The following functions are available: •...

  • Page 7: Compatible Accessory Devices By Siemens

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Summary (continued) Compatible Accessory Devices by Siemens Description Siemens product no. Siemens data sheet Cable temperature sensor or changeover sensor, QAH11.1 1840 cable length 2.5 m Room temperature sensor QAA32 1747 Cable temperature sensor (under floor heating),...
  • Page 8 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Summary (continued) Compatible Accessory Devices by Siemens (continued) Siemens Siemens Description product no. / SSN data sheet Changeover mounting kit sensor, cable length ARG86.3 N3009 2.5 m (50 pcs / package) Plastic mounting spacer for flush mount thermostats to increase the headroom in the ARG70.3...

  • Page 9: Functions

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions Temperature control General note: Parameters Setting of the control parameters (P01, etc., mentioned throughout the document) is described on page 34. Temperature control The thermostat acquires the room temperature via built-in sensor, external room temperature sensor, or external return air temperature sensor, and maintains the setpoint by delivering actuator control commands to heating and / or cooling equipment.

  • Page 10: Operating Modes

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Operating modes The thermostat’s operating mode can be influenced in different ways. e.g. operating mode button, switch over contact, etc. Specific heating and cooling setpoints are assigned to each operating mode.

  • Page 11: Different Ways To Influence The Operating Mode

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Different ways to influence the operating mode Priority of operating mode interventions The operating mode can be influenced by different interventions. The table below shows the priorities of different interventions. (i.e. lower number = higher priority)

  • Page 12: Room Temperature Setpoint

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Room temperature setpoint Description Comfort mode The default setting for the Comfort basic setpoint is 21 °C and can be changed via parameter P08 or system programming. The last intervention/input that was used will determine the setting.

  • Page 13: Setting And Adjusting Setpoints

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Room temperature setpoint (continued) Description (continued Protection mode Use control parameters P65 and P66 to adjust the Protection mode setpoints. The heating setpoint is factory-set to 8 °C (frost protection) and to OFF for cooling.

  • Page 14: Applications Overview

    If all DIP switches are set to OFF display will show “None” The DIP switches must be used to select an application. The LR-HVAC-230-S offers the applications printed in bold text (basic applications). For universal applications (chilled ceiling, etc.), refer to section Chilled / heated ceiling and radiator applications.

  • Page 15: Additional Functions

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Additional functions Automatic heating / cooling changeover via changeover sensor If an external temperature sensor is connected to X1 / X2, and parameter P38 / P40 is =2, the water temperature acquired by the changeover sensor is used to change over from heating to cooling mode, or vice versa.
  • Page 16 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Additional functions (continued) Purge function The changeover sensor ensures changeover from heating to cooling mode based on the acquired water temperature. We recommend activating the “Purge” function (parameter P50) with 2-port valves. This function ensures correct acquisition of the medium temperature even if the 2-port valve is closed for an extended period of time.
  • Page 17 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Additional functions (continued) The table below shows the relation between parameter, temperature source and temperature display: External Source for display of Output control based Floor temperature limit Parameter P51 temperature room temperature...

  • Page 18: Control Sequences

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences Sequences overview (setting via parameter P01) The main control sequence (i.e. the water coil sequence of the fan coil unit) can be set via parameter P01. The following sequences can be activated in the thermostats (each without or with auxiliary heating).

  • Page 19: 2-Pipe Fan Coil Unit

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) 2-pipe fan coil unit On 2-pipe applications, the thermostat controls a valve in heating / cooling mode with changeover (automatically or manually), heating only, or cooling only. Cooling only is factory-set (P01 = 1).

  • Page 20: 2-Pipe Fan Coil Unit With Electric Heater

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) 2-pipe fan coil unit with electric heater Heating or cooling with auxiliary heater On 2-pipe applications with electric heater, the thermostat controls a valve in heating / cooling mode with changeover, heating only, or cooling only plus an electric heater.
  • Page 21 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) ON / OFF control Control sequence ON / OFF output The diagrams below show the control sequence for 2-position control. Heating mode Cooling mode (automatic changeover = heating or heating only) (manual / auto.

  • Page 22: 4-Pipe Fan Coil Unit

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) 4-pipe fan coil unit Heating and cooling On 4-pipe applications, the thermostat controls 2 valves in heating and cooling mode, heating / cooling mode by manual selection, or heating and cooling mode with changeover. Heating and cooling mode (P01 = 4) is factory-set.

  • Page 23: Chilled / Heated Ceiling And Radiator Applications

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) Chilled / heated ceiling and radiator applications For chilled / heated ceiling and radiator, • set the corresponding basic application • disable the fan (P52) The following applications are available:...

  • Page 24: Setpoints And Sequences

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) Setpoints and sequences 2-pipe applications On changeover applications, the Comfort setpoints for heating and cooling sequence are the same (W). On 2-pipe applications with electric heater, the Comfort setpoint is either at the first heating sequence (in heating mode) or at the cooling sequence (in cooling mode).
  • Page 25 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control sequences (continued) Setpoints and sequences (continued) 4-pipe applications On 4-pipe applications, the Comfort setpoint (w) is in the middle of the dead zone, between the heating and cooling sequence. The dead zone can be adjusted via parameter P33.

  • Page 26: Control Outputs

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control Outputs Overview 4-pipe applications Different control output signals are available. They need to be defined during commissioning (see below). Control output Product no. 2-position 3-position LR-HVAC-230-S Y11, Y21 Y11, Y21*...

  • Page 27: Control Outputs Configuration (Setting Via Dip Switches)

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control Outputs (continued) Synchronization 1. When the thermostat is powered up, a closing command for the actuator running time + 150% is provided to ensure that the actuator fully closes and synchronizes to the control algorithm.

  • Page 28: Fan Control

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Fan control The fan operates in automatic mode or at the selected speed with manual mode. In automatic mode, the fan speed depends on the setpoint and the current room temperature. When the room temperature reaches the setpoint, the control valve closes and the fan switches off or stays at fan speed 1 (parameter P60;...
  • Page 29 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Fan control (continued) 1-speed / 3-speed fan The thermostat can control a 1- or 3-speed fan (selected via control parameter P53). A 1-speed fan is connected to terminal Q1, a 3-speed fan to terminals Q1, Q2 and Q3.
  • Page 30 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Fan control (continued) Fan start When the fan starts from standstill, it starts at speed 3 for one second to ensure safe fan motor start by overcoming inertia and friction (selected via parameter P58).

  • Page 31: Multifunctional Input, Digital Input

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Multifunctional input, digital input The thermostat has 2 multifunctional inputs X1 and X2. An NTC type sensor like the QAH11.1 (AI, analog input) or a switch (DI, digital input) can be connected to the input terminals.

  • Page 32: Handling Faults

    The thermostat resumes Comfort mode after the temperature returns to within the measuring range. Modbus RTU mode The LR-HVAC-230-S thermostats support communication to a LutronR system processor via Modbus. Device address The device address range is from 1 to 247.
  • Page 33 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Fault function Fault information If a fault occurs (e.g. digital fault input, dew point, etc.) then a fault will be displayed on the thermostat. Priority of alarms If more than one alarms occur at the same time, the thermostat will display all active alarms alternatively.

  • Page 34: Control Parameters

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control parameters A number of control parameters can be readjusted to optimize control performance. This can be done on the thermostat via HMI or via commissioning / operating tool. These parameters can also be set during operation without opening the unit.

  • Page 35: Parameters Of The "Service Level

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control parameters (continued) Parameters of the “Service level” Name Parameter Service level Factory setting Range Control sequence 2-pipe: (0…3) 0 = Heating only 1 (Cooling only) 1 = Cooling only 4-pipe: (2…4) 2 = Manual Heating or Cooling 4 (Heating &...

  • Page 36: Parameters Of The "Expert Level With Diagnostics And Test

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control parameters (continued) Parameters of the "Expert level with diagnostics and test" Name Parameter Service level Factory setting Range P-band / Switching 0.5 … 6 K differential for heating mode P-band / Switching 0.5 …...
  • Page 37 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control parameters (continued) Parameters of the "Expert level with diagnostics and test" (continued) Name Parameter Service level Factory setting Range Fan control 0 = Disabled 1 = Enabled 2 = Heating only...
  • Page 38 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Functions (continued) Control parameters (continued) Parameters of the "Expert level with diagnostics and test" (continued) Name Parameter Diagnostics & test Range Application number NONE (No application) 2-pipe 2P3P 2-pipe 3-position 2PEH 2-pipe with electric heater...

  • Page 39: Handling

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Handling Mounting and installation Mount the room thermostat on a recessed rectangular conduit box with 60.3 mm fixing centers. 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 above the floor.

  • Page 40: Commissioning

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Handling (continued) Commissioning Applications The room thermostats are delivered with a fixed set of applications. Select and activate the relevant application during commissioning using the Local DIP switch and HMI. DIP switches Set the DIP switches before snapping the front panel to the mounting plate.

  • Page 41: Operation

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Handling (continued) Operation Also see the Operating Instructions enclosed with the thermostat. Layout 1 Operating mode selector 2 Button to change fan operation 3 Buttons to adjust setpoints and control parameters Button operation...
  • Page 42 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Handling (continued) Operation (continued) Display Operating mode Heating / cooling mode Protection Cooling Comfort Heating Economy Electrical heater active Displays room temperature, Condensation in room setpoints and control parameters (dew point sensor active)

  • Page 43: Connection

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Connection Connection terminals L, N Operating voltage 230 V~ Control output “Fan speed 1 230 V~” MUX MUX Control output “Fan speed 2 230 V~” Control output “Fan speed 3 230 V~” Y11,Y21 Control output “Valve” 230 V~ (N.O., for normally closed...

  • Page 44: Connection Diagrams

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Connection (continued) Connection diagrams Application Room thermostat LR-HVAC-230-S 1- or 3-speed fan Valve actuator, 2- or 3-position V1, V2 Valve actuator, 2-position Electric heater MUX MUX C1, C2 1-stage compressor S1, S2 Switch (keycard, window contact, presence detector, etc.)

  • Page 45: Mechanical Design

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Mechanical design General The thermostats consists of two parts: • Front panel with electronics, operating elements and built-in room temperature sensor. • Mounting base with power electronics. – The rear of the mounting base contains the screw terminals.
  • Page 46 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Operation and settings 1. Operating mode selector 2. Change fan operation 3. Adjust setpoints and control parameters Technical Support: +44.(0)20.7702.0657...

  • Page 47: Dimensions

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Dimensions (mm) 86.1 86.1 41.6 21.8 53.8 13.5 55.0 52.2 67.2 60.0 Technical Support: +44.(0)20.7702.0657...

  • Page 48: Technical Data

    Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Technical data Power supply Rated voltage 230 V~ Overvoltage category Frequency 50 / 60 Hz Power consumption Max. 7 VA / 3.7 W Notice: No internal fuse! External preliminary protection with max C 10 A circuit breaker required in all cases.
  • Page 49 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Technical data (continued) Operational data Switching differential, adjustable – Heating mode (P30) 2 K (0.5–6 K) – Cooling mode (P31) 1 K (0.5–6 K) Setpoint setting and range – Comfort (P08) 21 °C (5 °C to 40 °C) –...
  • Page 50 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Technical data (continued) Standards and directives – EU Conformity (CE) 8000079200_XX_A – Electronic control type 2.B (micro-disconnection on operation Safety class II as per EN 60730 Pollution class Normal Degree of protection of housing...
  • Page 51 Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide Lutron and HomeWorks are registered trademarks and myRoom is a trademark of Lutron Electronics Co., Inc Lutron Contact Numbers WORLD HEADQUARTERS EUROPEAN HEADQUARTERS ASIAN HEADQUARTERS United Kingdom Singapore Lutron Electronics Co., Inc. Lutron EA Ltd.

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