Salus ERT50 Instruction Manual
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Salus ERT50 Instruction Manual

Salus ERT50 Instruction Manual

For underfloor heating applications
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ERT50
Digital Room Thermostat
for Underfloor
Heating Applications
Instruction Manual
Model No
ERT50

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Summary of Contents for Salus ERT50

  • Page 1 ERT50 Digital Room Thermostat for Underfloor Heating Applications Instruction Manual Model No ERT50...

  • Page 2: Product Compliance

    Low Voltage Directive 2006/95/EEC • EC Marking directive 93/68/EEC SAFETY INFORMATION These instructions are applicable to the Salus Controls model stated on the front cover of this manual only, and must not be used with any other make or model.
  • Page 3 The ERT50 from Salus Controls is a stylish and accurate digital room thermostat that is fitted with a large easy to read Liquid Crystal Display (LCD). The ERT50 benefits...

  • Page 4: Installation

    Please read the important safety information at the start of this manual before you begin to install the device. The ideal position to locate the ERT50 digital room thermostat is about 1.5m above floor level. It should be mounted in a location where the thermostat is easily accessible, reasonably lit and free from extremes of temperature.

  • Page 5: Setting Modes

    Do not remove or refit the ERT50 wiring without the mains supply to the system being isolated. SETTING MODES When the ERT50 is first powered up, the Start Up Display will be shown. Basic Settings Many of the ERT50 configuration and operating settings can be changed here.

  • Page 6: Date And Time

    The last menu item is Daylight Saving – by default this is turned on. Change the setting using the PLUS or MINUS keys, then press the SELECT key to save the settings and return to the Program/Basic settings menu. ERT50 INSTRUCTION MANUAL...

  • Page 7: Maintenance

    LANGUAGE: The ERT50 is programmed to operate in eight different languages (the default is English). If you wish to change the language used, select Language from the Program/ Basic Settings screen. Select your choice of language with the PLUS or MINUS keys, then press SELECT to save your choice and return to the Program/Basic Settings screen.
  • Page 8 The timers can be reset by selecting the Reset Operating Time item. Select Yes and then press the SELECT key to reset the timers to 0. Press the CANCEL key twice to return to the Program menu. ERT50 INSTRUCTION MANUAL...

  • Page 9: Control Settings

    Master/Slave relationship. The first option allows you to turn Night Setback on or off. The Setback feature will only operate if a connection is made to the Setback terminal ERT50 INSTRUCTION MANUAL...
  • Page 10 You can only change the other Communications options if NSB is set to OFF – if NSB is turned ON the ERT50 will be set as the Master unit and will only send a signal to any Slave units, not receive a signal from them.

  • Page 11: Frost Protection

    FROST PROTECTION: Selecting the Frost item in the menu allows you to turn the frost protection mode of the ERT50 on or off (the default setting is On). The Frost Protection mode temperature is preset at 5 ºC; this temperature is factory set and cannot be adjusted.

  • Page 12: Valve Protection Function

    When enabled, the VP function will turn on the thermostat output to operate the control valve for a period of 5 minutes every week - the Valve Protection function will still operate even if the room temperature is higher than 35 °C. ERT50 INSTRUCTION MANUAL...

  • Page 13: Temperature Offset

    Use the PLUS and MINUS keys to adjust the Offset setting, and save your changes by pressing the SELECT key. After saving the setting, the ERT50 will revert back to the Program menu. Pressing CANCEL will return you to the Program menu without saving your changes.

  • Page 14: After Installation

    AFTER INSTALLATION: After completing installation and powering up the ERT50 for the first time the thermostat will behave in the following way: All the indicators on the display and the backlight will be turned on for two seconds and display the installed firmware version.
  • Page 15 Output Mode Valve Protection Offset 0 °C Output LCD Backlight Daylight Saving N.B: Please be aware that after a Reset, the ERT50 output relay may turn ON if the room temperature is lower than the Set Point temperature. ERT50 INSTRUCTION MANUAL...

  • Page 16: User Interface And Controls

    USER INTERFACE AND CONTROLS: The status and operation of the ERT50 can be clearly seen on the large orange backlit Liquid Crystal Display (LCD) - this display allows the user to see at a glance the current status of the heating system.

  • Page 17: Operation

    Cancels the current selection or exits the active menu OPERATION As previously described, the ERT50 is configured and adjusted by the use of an intuitive user interface with a minimal number of user controls, and the backlit LCD gives a highly visible, easily readable indication of the thermostat status.
  • Page 18 Indicates holiday mode is active. FAMILY Preset (predefined) profile for family environments. SINGLE Preset (predefined) profile for single user environments. OFFICE Preset (predefined) profile for office environments. NAME 1 User definable and re-nameable profile. NAME 2 User definable and re-nameable profile ERT50 INSTRUCTION MANUAL...
  • Page 19 PROFILES: The ERT50 has a number of preset profiles that simplify installation and setup. The profiles contain default settings that should meet the majority of needs in a range of environments, meaning that the controller can work ‘out of the box’ with no reprogramming. The five...
  • Page 20 06:30 Reduced EVERYDAY FUNCTIONS (EDF) The ERT50 gives the user the option of three different idle screen display modes, depending on the user’s preference: Full screen, Selected screen or Basic Screen. In all three idle screen modes, the displayed temperature is the current room temperature.

  • Page 21: Manual Changes

    Pressing the CANCEL button twice will allow you to access the Menu screen as shown here. Pressing the PLUS or MINUS keys will allow you to change the set temperature up or down as shown in the examples below: ERT50 INSTRUCTION MANUAL...

  • Page 22: Change Display

    Change Display: Select an option by using the PLUS or MINUS keys and pressing the SELECT key. Change Profile: As previously, select an option by using the PLUS or MINUS keys and pressing the SELECT key. ERT50 INSTRUCTION MANUAL...
  • Page 23 At the end of the Holiday period, normal programmed control will resume. After saving the Holiday settings, the display will return to the menu screen. If Holiday is turned On, the full screen display will show the Holiday function icon. ERT50 INSTRUCTION MANUAL...
  • Page 24 PROGRAM ON/OFF: You have the option to turn off Program mode and use the ERT50 in Manual mode. To turn Program mode off, use the PLUS or MINUS keys to select the Program Off menu item, then press the SELECT key.
  • Page 25 PROGRAMMING The ERT50 makes programming a very straightforward operation because of the intuitive menu structure. To access the Programming menu, you need to press the CANCEL key, and then press the SELECT and CANCEL keys together. The Program menu has five options: Profiles, Temperature Zones, Basic Settings, Control and Heat/Cool.
  • Page 26 Next, you can set the switching point for the time of day: For every time of day you need a Start and End time (there cannot be any gaps between each End time and the next Start time). ERT50 INSTRUCTION MANUAL...
  • Page 27 SELECT key to confirm the setting and move to the next setting. Press the CANCEL key to exit to the previous menu without making changes. An example of setting changes is shown in the following images: ERT50 INSTRUCTION MANUAL...
  • Page 28 Once an individual day has been programmed, you can copy the settings to other days very easily by using the Copy menu item. In this example, we will copy the settings we made earlier for Monday, and copy them to Sunday. ERT50 INSTRUCTION MANUAL...
  • Page 29 In this example, we will copy the settings from the Office profile into the Family profile: Highlight the profile you want to copy from using the PLUS or MINUS keys then press the SELECT key to copy the profile settings. ERT50 INSTRUCTION MANUAL...
  • Page 30 Use the PLUS or MINUS keys to change each character and confirm your choice with the SELECT key. On reaching the last character, the option to save the new name will appear – press the SELECT key to save your changes, or CANCEL to exit without saving. ERT50 INSTRUCTION MANUAL...

  • Page 31: Temperature Zones

    TEMPERATURE ZONES: The ERT50 has three pre-programmed temperature zone settings – the default settings for each zone are: Temperature Zone Setting Standard 20.0 °C Comfort 24.0 °C Reduced 16.0 °C The settings for each zone can be changed by selecting the Temperature Zones menu item.

  • Page 32: Control Status

    The backlight will not illuminate if there is no mains supply to the controller. Control Status The ERT50 indicates on the LCD the control status by using a selection of display icons. Heating: The display will show the word ‘Heat’ and an animated flame icon when in HEATING mode.
  • Page 33 Cooling: The display will show the word ‘Cool’ and an animated snowflake icon when in COOLING mode. ERT50 INSTRUCTION MANUAL...

  • Page 34: Key Lock

    KEY LOCK The ERT50 has a Key lock function that helps to prevent accidental changes to the controller settings. Key lock is turned on or off by pressing and holding the PLUS and MINUS keys together for more than 3 seconds.

  • Page 35: Power Monitor

    POWER MONITOR The ERT50 monitors the incoming AC mains supply. If the power fails or is turned off, the controller will behave in the following way: • The LCD backlight will turn off • All outputs ( relay) will turn off •...

  • Page 36: Warranty

    Salus Controls sole liability for breach of this warranty will be (at its option) to repair or replace the defective product.

  • Page 37: Product Specification

    Clock Format: User selectable 12 or 24 hour format Accuracy: ± 1 minute per month Power Supply Power Source: 230V AC / 50Hz Memory Backup Type: Electrically Erasable Programmable Read Only Memory (EEPROM) ERT50 INSTRUCTION MANUAL...

  • Page 38: Switching - Control

    0.5 ºC Temperature setting range: 10.0 ºC – 35.0 ºC Temperature setting resolution: 0.5 ºC Frost protection setting: 5.0 ºC Environment Operating Temperature: 0 ºC to + 40 ºC Storage Temperature: - 20 ºC to + 60 ºC ERT50 INSTRUCTION MANUAL...
  • Page 39 Salus Controls sole liability for breach of this warranty will be (at its option) to repair or replace the defective product.
  • Page 40 SALUS North America 850 Main Street, Redwood City CA 94063 Tel: +1-650-360-1725 Email: sales@salusna.com...

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