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AURATON Libra User Manual
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AURATON Libra User Manual

AURATON Libra User Manual

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AURATON Libra
User manual ver. 20220222
The document presents collected information on safety, assembly and use of AURATON Libra.
Weekly, wired thermostat
AURATON Libra is a weekly, wired thermostat designed to work with a gas or electric heating device.
U
3 independently adjustable temperatures
Day, night, anti-freezing.
&
9 independent temperature programs
Including 6 user-modifiable programs.
Backlit LCD display
LCD
The backlit display allows you to supervise the operation of the device even in poorly lit
rooms.

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Summary of Contents for AURATON Libra

  • Page 1 The document presents collected information on safety, assembly and use of AURATON Libra. Weekly, wired thermostat AURATON Libra is a weekly, wired thermostat designed to work with a gas or electric heating device. 3 independently adjustable temperatures Day, night, anti-freezing.
  • Page 2 Description of the AURATON Libra Weekly, wired thermostat There is a backlit LCD display, four function buttons and a temperature setting knob with an OK button on the front part of the regulator’s casing. LCD display setting knob with integrated...
  • Page 3 Day of the week ( ) – Indicates what day of the week it is. Each day is assigned a number. Temperature – AURATON Libra displays the temperature of the room in which it is installed in normal operation mode.
  • Page 4 Choosing the right location for AURATON Libra The correct operation of AURATON Libra is largely influenced by its location. Using the device in a place with no air circulation or a place with direct sunlight may result in incorrect temperature control.
  • Page 5 AURATON Libra to possible vibrations may also cause problems with proper operation of the device. Connecting cables to AURATON Libra To connect the wires, remove the casing as shown below: The terminals are located on the back of AURATON Libra, under the plastic casing.

  • Page 6: Battery Replacement

    After connecting the wires, place the plastic casing back on. Battery replacement The battery compartment is located inside AURATON Libra in the front of the casing. To install the batteries, remove the casing of AURATON Libra as shown in the figure below:...
  • Page 7 IMPORTANT: We recommend using alkaline batteries to power AURATON regulators. Do not use “rechargeable batteries” because their rated voltage is too low. – AAA 1.5 V battery socket...
  • Page 8 AURATON Libra casing). Put wall plugs in the drilled holes. Fix the rear part of the casing of AURATON Libra to the wall using the screws included in the kit. Put the casing on. IMPORTANT: In the case of a wooden wall, there is no need to use wall plugs.
  • Page 9 hole for fastening screw Putting the casing back on: IMPORTANT Pay attention to the pins that transmit control to the relay when putting the front part of the casing to the rear part.
  • Page 10 After inserting the batteries correctly into the battery compartment, the LCD screen will display all the segments for a second and then the software version number. After a while, AURATON Libra will automatically switch to the time setting mode. A flashing item on the...
  • Page 11 screen means that the device is currently in the edit mode. Turn the knob to the left or right to set the required hour and confirm using the button. Turn the knob to the left or right to set the correct value on the minute segment and confirm using the button.
  • Page 12 A flashing symbol of the day of the week appears in the upper left corner. Turn the knob to the left or right to set the day and confirm the selection using the button. IMPORTANT: If no button is pressed for 60 seconds in the initial edit mode, 12:00 o’clock and Monday, as the day of the week, will be set automatically.
  • Page 13 Press the button. The hour segment on the display will start flashing. Turn the knob to the left or right to set the required hour and confirm with using the button. Turn the knob to the left or right to set the correct value on the minute segment and confirm using the button.
  • Page 14 A flashing symbol of the day of the week appears in the upper left corner. Turn the knob to the left or right to set the day and confirm the selection using the button. IMPORTANT:...
  • Page 15 – 21,0°C night temperature – 19,0°C anti-freeze temperature – 7,0°C Programming day and night temperatures AURATON Libra allows you to program 2 types of temperature: Day temperature ( ) – from 5 to 30°C Night temperature ( ) – from 5 to 30°C...
  • Page 16 The display will show the currently set temperature with one of the two symbols: – day temperature; – night temperature. Turn the knob to the left or right to set the desired temperature value. Pressing the button will switch the edit mode between the day and night temperatures ( After setting the temperatures, confirm using the ) button.

  • Page 17: Introduction To Programming

    Factory programs In order for AURATON Libra to know when to turn on the day and night temperatures, you should be set to an appropriate program for each day of the week. For this purpose, you can use one of the three factory programs (from 0 to 2): Program no.

  • Page 18: Weekly Programming

    Programs from 3 to 8 are user-defined programs. They can be freely modified and adapted to specific requirements. Programming Weekly programming To program AURATON Libra, set the day temperature intervals for individual days of the week. At other time, night temperature will be set. Sample AURATON Libra setting from Monday to Sunday. Outside the intervals programmed, the night temperature will be set.

  • Page 19: Program Selection

    Program selection To set the program: Press the key. Program number segment will start blinking. Press the key as many times as required to set the day of the week for the program.
  • Page 20 Press the key several times and select the program number requested. Programs 0-2 are factory-set, programs 3-8 can be edited.
  • Page 21 Confirm selection pressing the key. Repeat the procedure for the following days of the week. Modyfying user-defined programs To set the program: Press the key. Program number segment will start blinking. Press the key as many times as required to set the day of the week for the program.
  • Page 22 Press the key several times to select the program number required. Programs 0-2 are factoryset, programs 3-8 can be edited.
  • Page 23 All (24) black rectangles will appear on the timeline. Each of them symbolises 1 hour. A visible rectangle indicates day temperature set for the given time. If no rectangle is displayed, night temperature is set. Blinking rectangle indicates the point of the timeline which is modified. Press the key to select day (rectangle on) or night temperature (no rectangle).
  • Page 24 By pressing the key and selecting time interval the entire program is modified. Confirm selection with the key.

  • Page 25: Manual Control

    (24 hours at the most) and confirm the setting using the button. AURATON Libra will wait until you choose one of the two temperatures which it should maintain (day or night). The change is made by using the button or the knob. Confirm the selection using the button.
  • Page 26 To perform a reset, remove the battery and wait until the data on the display disappears. Master reset of AURATON Libra MASTER RESET is performed by pressing and holding the button and at the same time installing the batteries. This causes AURATON Libra to return to its factory settings. IMPORTANT:...

  • Page 27: Configuration Settings

    Changes in the delay Offset change Clock calibration To enter the edit mode of the configuration settings, hold the buttons simultaneously for 3 seconds until the settings menu is displayed. Heating mode/air-conditioning mode AURATON Libra can work in two modes:...
  • Page 28 Heating mode (preset) – set it if you want AURATON Libra to cooperate with heating devices. Air-conditioning mode – set it if you want AURATON Libra to cooperate with air-conditioning devices. Turn the knob to the left or right to set the required mode. Confirm your choice by pressing the button.
  • Page 29 HI 4 – ±0,4 °C, HI P – PWM operating mode (see chapter “PWM operating mode”). Confirm your choice by pressing the button. AURATON Libra will proceed to change the next parameter. Changes in the delay The delay prevents too frequent activation of the actuator, e.g. due to temporary drafts (caused by opening the window, etc.).
  • Page 30 23 °C, while a regular room thermometer next to it may show 24 °C. Changing the offset by +1 degree, will make AURATON Libra show the same temperature as the room thermometer.

  • Page 31: Clock Calibration

    20 = 80). In this case you should slow down the clock by setting C -80. Example 2: After a week of operation, the clock in AURATON Libra is 2 minutes slow (2 x 60 = 120). In this case you should speed up the clock by setting C 120.
  • Page 32 By changing the hysteresis settings (chapter “Configuration settings”), you can turn on the PWM operating mode. In this mode, AURATON Libra cyclically turns on the heating device in order to minimize temperature fluctuations. AURATON Libra checks temperature rise times and temperature drop times.

  • Page 33: Additional Remarks

    At least 30 seconds must elapse between switching the relay off and on again. AURATON Libra enables you to turn on or off the control functions at any time (e.g. after a heating season) by briefly holding down (for about 5 seconds) the button (AURATON Libra will only show the current time and room temperature –...

  • Page 34: Cleaning And Maintenance

    Heating device e.g. a gas furnace lectric heating device (MAX 230 V AC, 16 A) Cleaning and maintenance The outside part the device should be cleaned with a dry cloth. Do not use solvents (such as...

  • Page 35: Technical Specifications

    benzene, thinner or alcohol). Do not touch the device when your hands are wet. It may cause electric shock or serious damage to the device. Do not expose the device to excessive smoke or dust. Do not touch the screen with a sharp object. Keep the device away from liquids or moisture.
  • Page 36 Hereby, LARS Andrzej Szymanski declares that the radio equipment type AURATON Libra is in compliance with Directive 2014/53/EU and 2011/65/EU. The full text of the EU declaration of conformity is available below in the download area. Contact and address of the manufacturer: LARS, ul.