LEGRAND MyHOME Installer Manual

LEGRAND MyHOME Installer Manual

Thermostat with display

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H/LN4691 - 0 674 59 - 64170
Thermostat with display
Installer manual
www.homesystems-legrandgroup.com

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Summary of Contents for LEGRAND MyHOME

  • Page 1 H/LN4691 - 0 674 59 - 64170 Thermostat with display Installer manual www.homesystems-legrandgroup.com...
  • Page 2 Thermostat with display Installer manual...
  • Page 3: Table Of Contents

    Thermostat with display Installer manual Contents 1 Introduction Warnings and recommendations 2 Description General features Front view Rear and side view 3 Possible applications Installation Function comparison table 4 Configuration Physical or advanced configuration 5 Functions and operating modes Heating and cooling function Automatic changeover function (available starting from version 1.3 of MyHOME_Suite) 5.2.1 Automatic changeover in automatic or manual mode (fixed set-point)
  • Page 4: Introduction

    Thermostat with display 1 Introduction Installer manual 1.1 Warnings and recommendations Before proceeding with the installation it is important to read this manual very carefully. The guarantee is automatically void in case of negligence, improper use, tampering by unauthor- ised personnel. The thermostat is only suitable for indoor installation.
  • Page 5: Description

    Automatic, Temporary Manual, or Off ), the detected room temperature, the temperature set point defined, the fan-coil speed, and the status of the zone. The thermostat can be used in MyHOME temperature control systems (MyHOME probe with cen- tral unit), hotel room systems, or residential systems (individual system). The configuration can be done by connecting the configurators to the corresponding sockets in the back of the thermostat, or using the MyHOME_Suite software.
  • Page 6: Front View

    MODE key: a short pressure changes the mode of operation of the device; an extended pressure (unless used as MyHOME probe) changes the function. For the Hotel mode of operation only it is possible to change the function using the Mode key (performing the configuration using the MyHOME_Suite software).
  • Page 7: Rear And Side View

    Configurator socket. Connection to the BUS. Local contact. ZA / ZB = zone address, TYPE = Thermostat operating mode (MyHOME probe, hotel thermostat, or individual residential system); HEAT = definition of the type of heating load (valves, fan-coil, etc.); COOL = definition of the type of cooling load (valves, fan-coil, etc.);...
  • Page 8: Possible Applications

    3.1 Installation Installation in a MyHOME temperature control system Thanks to the internal sensor, the thermostat can operate as master probe of a MyHOME system. In this case it will obtain the settings from the central unit managing the system.
  • Page 9 Thermostat with display 3 Possible applications Installer manual Installation in hotel room The operation in the hotel room configuration gives the customer the possibility of easily setting the temperature to the desired level of comfort. The hotel manager can integrate the individual thermostat installed in the room as part of a system that can be managed using a software for the monitoring of consumptions, therefore avoiding unwanted energy waste.
  • Page 10: Function Comparison Table

    Thermostat with display 3 Possible applications Installer manual 3.2 Function comparison table DESCRIPTION MyHOME SYSTEM HOTEL SYSTEM INDIVIDUAL SYSTEM · From keypad (blockable) · From keypad Heating or cooling function · From central unit · From local contact · From local contact setup ·...
  • Page 11: Configuration

    Thermostat with display 4 Configuration Installer manual 4.1 Physical or advanced configuration Depending on personal requirements and the type of system to install, the thermostat may be configured in two ways: physical or advanced configuration. The physical configuration is completed by connecting the configurators to the appropriate sock- ets on the back of the thermostat.
  • Page 12: Functions And Operating Modes

    - cooling function (only the cooling is active); - cooling function in summer / heating function in winter; - automatic changeover between cooling and heating (not available in MyHOME systems). The setting of the function (with the exclusion of the use as MyHOME probe) can be modi-...
  • Page 13: Automatic Changeover Function (Available Starting From Version 1.3 Of Myhome_Suite)

    Installer manual 5.2 Automatic changeover function (available starting from version 1.3 of MyHOME_Suite) (Not available in MyHOME systems). The thermostat can be programmed for automatic changeover between the heating and the cooling functions. When programmed in this way, the ( ) icons are not displayed.
  • Page 14: Automatic Changeover In Automatic Or Manual Mode (Fixed Set-Point)

    Thermostat with display 5 Functions and operating modes Installer manual 5.2.1 Automatic changeover in automatic or manual mode (fixed set-point) The switching from the heating to the cooling function, and vice versa, depends on the rules listed in the following table (T° represents the measured temperature). Measured temperature Action T°...
  • Page 15: Automatic Function In Comfort, Eco, And Protection Mode

    Thermostat with display 5 Functions and operating modes Installer manual 5.2.2 Automatic function in Comfort, Eco, and Protection mode Automatic changeover depends on the operating mode selected: comfort, eco, or protection. In this case, the heating and cooling ranges must have been previously set in the corresponding modes (see paragraph 6.3).
  • Page 16 Thermostat with display 5 Functions and operating modes Installer manual The thermostat operates on two different set-points: high set-point, and low set-point. HIGH SET-POINT LOW SET-POINT MEASURED TEMPERATURE COOLING TIME HEATING Example chart...
  • Page 17: Example Of Installation Diagram

    Thermostat with display 5 Functions and operating modes Installer manual 5.3 Example of installation diagram 4 zone system with 4 tube fan-coil for heating and cooling systems. LAN network BEDROOM 4 MH201 H/LN4691 PRI: 220 – 240 V~ 185 – 175 mA 47/63 Hz SCS: 27 Vdc 600 mA...
  • Page 18 Thermostat with display 5 Functions and operating modes Installer manual Connection and configuration detail F430R8 OUT 1 = minimum fan speed OUT 2 = medium fan speed OUT 3 = maximum fan speed OUT 4 = heating solenoid valve OUT 5 = cooling solenoid valve OUT 3 F430R8 OUT 2...
  • Page 19 Thermostat with display 5 Functions and operating modes Installer manual (**) Thermostat configuration detail H/LN4691 BEDROOM 1 THERMOSTAT BEDROOM 3 THERMOSTAT [ZA] [ZB] [TYPE] [HEAT] [COOL] [PUMP] [IN] [ZA] [ZB] [TYPE] [HEAT] [COOL] [PUMP] [IN] BEDROOM 2 THERMOSTAT BEDROOM 4 THERMOSTAT [ZA] [ZB] [TYPE]...
  • Page 20: Operating Modes

    Thermostat with display 5 Functions and operating modes Installer manual 5.4 Operating modes The thermostat can operate in the following modes: Manual / Automatic. Temporary manual. Comfort; 2 customisable set-points: ideal heating and cooling temperatures (default 21 – 25°C). Eco; 2 customisable set-points: saving heating and cooling temperatures (default 18 –...
  • Page 21: Programming

    Thermostat with display 6 Programming Installer manual 6.1 Display items Set point The thermometer icon is not shown, and the unit of measure of the temperature is in °C. In OFF mode the display does not show the temperature detected, but the “- -” symbol. Note: Using the MyHOME_Suite software it is possible to switch from °C to °F.
  • Page 22 Thermostat with display 6 Programming Installer manual Configuration / test being completed The “[ ]” symbol flashes slowly to indicate that a remote configuration / test is being completed. No configuration The “[ ]” symbol flashes slowly to indicate that the thermostat is not configured.
  • Page 23 Thermostat with display 6 Programming Installer manual Error condition The display shows the “Er” symbol followed by a number (1 to 5), to indicate an error condition. For more information see paragraph 7.3.
  • Page 24: Temperature Calibration Detected

    Thermostat with display 6 Programming Installer manual 6.2 Temperature calibration detected – By pressing at the same time it is possible to calibrate the measured temperature. NOTE: after the first installation wait for at least 5 hours before carrying out the calibration proce- dure.
  • Page 25: Modification Of The Set-Point Using The Keypad

    Thermostat with display 6 Programming Installer manual 6.3 Modification of the set-point using the keypad Below is a description of how to manually change the temperature set-points. MODE Press to select the mode for which the set-point must be changed. The current set-point flashes for a few seconds.
  • Page 26: Appendix

    Thermostat with display 7 Appendix Installer manual 7.1 Installation height The thermostat must be installed on a wall at an average height of 150 cm from the floor, unless otherwise required by current laws. MODE – 7.2 Technical data Power supply from BUS 18 –...
  • Page 27: In Case Of Error

    Thermostat with display 7 Appendix Installer manual 7.3 In case of error When the display shows the “Er” symbol followed by a number, the thermostat is indicating an error condition. Below is a list of possible errors: No response from pump. No response from actuator.
  • Page 28 Thermostat with display Installer manual TECHNICAL AFTER-SALES SERVICE Legrand SNC only accepts responsibility for perfect device operation if it is installed to the state of the art respecting the indications of the product installation manual. www.legrand.com...
  • Page 29 Thermostat with display Installer manual...
  • Page 30 87045 Limoges Cedex - France 21100 Varese - Italy www.legrand.com www.bticino.com Legrand SNC reserves at any time the right to modify the contents of this booklet and to communicate, in any form and modality, the changes brought to the same.

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