Computherm E300 Instruction Manual
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Computherm E300 Instruction Manual

Programmable digital wi-fi thermostat for radiator and underfloor heating systems
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COMPUTHERM E300
a programmable digital Wi-Fi thermostat for
radiator and underfloor heating systems
Instruction Manual

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Summary of Contents for Computherm E300

  • Page 1 COMPUTHERM E300 a programmable digital Wi-Fi thermostat for radiator and underfloor heating systems Instruction Manual...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. A general description of the thermostat 2. Important warnings and safety recommendations 3. Information appearing on the display of the thermostat 4. Functions accessible in the phone application 5. Location of the thermostat 6. Connection and installation of the thermostat and putting it into operation 6.1.
  • Page 4 8. Operation-related settings 8.1 Selecting the temperature sensor 8.2. Setting floor temperature limit and corresponding switch sensitivity 8.3 Calibration of the temperature sensor 8.4 Antifreezing 8.5. Memorizing settings in the event of a power failure 8.6 Restoring default setting 9. Basic operation of the thermostat 10. Switching between ON and OFF positions and modes of the device 10.1. Manual mode 1 0.2. Programmed auto mode 10.2.1 Description of the programmed mode 10.2.2. Description of the steps of programming 10.2.3. Modifying temperature until the next switch in the program 11.

  • Page 5: A General Description Of The Thermostat

    1. A GENERAL DESCRIPTION OF THE THER- MOSTAT COMPUTHERM E300 Wi-Fi thermostat is a switching device that can be operated by a smartphone or tablet via Internet, and we especially recommend it for controlling heating or cooling systems. It can be easily connected to any gas boiler having a two-wire...

  • Page 6: Important Warnings And Safety Recommendations

    (see Figure 5), in addition to starting up the boiler. Thus, using several COMPUTHERM E300 type Wi-Fi thermostats, a heating system can be easily divided into zones without a separate zone control system.
  • Page 7 • Before starting to use the thermostat, make sure that the Wi-Fi network is reliably accessible at the place where you intend to use the apparatus. • This device has been designed for indoor use. Do not use it in a humid, dusty or chemically aggressive environment.
  • Page 8 fectly functioning when it is controlled by the thermos- tat and it can be operated reliably. • The software of the thermostat and the telephone applica- tion is constantly upgraded and updated. For proper opera- tion please check regularly whether there is any accessible software or telephone application update, and always use their latest version! Due to constant updates it is possib- le that some functions of the device and the applications operate and appear in a way other than described in these instructions for use.

  • Page 9: Information Appearing On The Display Of The Thermostat

    3. INFORMATION APPEARING DISPLAY OF THE THERMOSTAT Figure 1 - 9 -...

  • Page 10: Functions Accessible In The Phone Application

    4. FUNCTIONS ACCESSIBLE IN THE PHONE APPLICATION Figure 2 - 10 -...

  • Page 11: Location Of The Thermostat

    6. CONNECTION AND INSTALLATION OF THE THERMOSTAT AND PUTTING IT INTO OPERATION Attention! Make sure that the COMPUTHERM E300 thermo- - 11 -...

  • Page 12: Connection Of The Device(S) To Be Controlled

    For controlling gas boilers the connection points of the boiler thermostat should be connected to COM-NO or K2 connection points of COMPUTHERM E300 (Figure 3). If the device to be controlled has no thermostat connection point, the power sup- - 12 -...
  • Page 13 ply cable of the device to be controlled should be cut off and connected to connection points COM-NO (3-4) or K2 (8-9) of the thermostat (Figure 4). Figure 3 Figure 4 For controlling a multi-zone heating system Within the loadability limits the two parallel operating relays built in the thermostat make simultaneous actuation (open/close, start/stop) of other electrically operable fittings (e.g.
  • Page 14 COMPUTHERM E300 type Wi-Fi thermostats, a heat- ing system can be easily divided into zones without a separate zone control system. For example, if you wish to install several thermostats within a heating network, in addition to controlling the boiler the zone control (opening/closing various heating...

  • Page 15: Connecting The Floor Temperature Sensor

    6.2. Connecting the floor temperature sensor A floor temperature sensor is also included in the packaging of the COMPUTHERM E300 thermostat. If during operation you wish to use the floor temperature sensor instead of or in addition to the temperature sensor built in the thermostat then connect it to the connection points labelled “Sensing”...

  • Page 16: Connection To The Electrical Network

    puts whenever this temperature is reached. This function may be especially useful, for safety reasons, for underfloor and electrical heating systems. If you wish to use the sensor to measure floor temperature, we propose to put the temperature sensor in a short copper pipe and sink it into the floor so that it can be replaced easily when a breakdown occurs.

  • Page 17: Mounting The Thermostat

    and L of the terminal block located on the rear side of the thermos- tat. You do not have to take care of phase correctness during the connection process. 6.4. Mounting the thermostat To install the thermostat you should separate the front plate from the black plate.

  • Page 18: Installing The Application

    6.5. Installing the application The thermostat can be controlled by both a smartphone and a tablet with the help of free application COMPUTHERM E Series. Application COMPUTHERM E Series can be downloaded to iOS and Android operating systems. The applications are acces- sible through the following link or using a QR code: http://quantrax.hu/computherm-wi-fi-termosztatok/...

  • Page 19: Connecting The Thermostat To A User Account

    6.7. Connecting the thermostat to a user account • You can search for COMPUTHERM E300 thermostats connected to the Wi-Fi network concerned by tapping the “Search” icon in the left bottom corner (i.e. this requires that the thermostat is connected to the same Wi-Fi network used for the phone).

  • Page 20: Controlling The Thermostat By Multiple Users

    • Connect your smartphone/tablet to the Wi-Fi network to which the COMPUTHERM E300 thermostat has been con- nected. • On the apparatus you want to use for controlling download then start application COMPUTHERM E Series.

  • Page 21: Basic Settings

    (PV) and set (SV) temperatures. Attention! If you want to avoid that other users can add your COMPUTHERM E300 thermostat to their phone app- lications, you can disable this operation as described in Sub-chapter 7.2.

  • Page 22: Disabling Further Connections Of The Thermostat Assigned To The Application

    Wi-Fi network. Attention! When a phone/tablet has already been connected to the Wi-Fi network concerned and application COMPUTHERM E Series has been opened on it then addition of the ther- mostat to this phone/tablet cannot be disabled with function “Lock current thermostat”...

  • Page 23: Setting The Day And Time

    from the application by tapping the “Delete current ther- mostat” icon. 7.4. Setting the day and time • Using phone application: To set date and time click on the icon in the phone app- lication after the thermostat has been selected. Now the thermostat sets date and time automatically via Internet. •...

  • Page 24: Locking Operating Buttons

    With the help of the buttons set the day. By tapping the button again the thermostat will be reset to its initial state. 7.5. Locking operating buttons • Using phone application: To lock operating buttons tap the icon in the phone app- lication after the thermostat has been selected. Hencefor- ward the device cannot be controlled by the touch buttons on the thermostat until the operating buttons are unlocked.

  • Page 25: Operation-Related Settings

    8. OPERATION - RELATED SETTINGS For the operation of the thermostat some functions can be set. Operation-related settings can be performed in the following way: • Using phone application: Tap the icon in the right bottom corner for 1 second. The following screen appears: where you can select the function to be modified.
  • Page 26 button for a short time. - Now you enter the settings menu: in the left bottom cor- ner “SEN” appears and the set temperature will be repla- ced by numbers 00. - Tapping the button you can switch between the func- tions to be set.
  • Page 27 Detailed Display Function Setting Options Default Setting Description Internal sensor Floor temperature Selecting the temperature Chapter 8.1 sensor sensor Internal and floor temperature sensors Setting the floor temperature Chapter 8.2 5 – 99 °C 42 °C sensor limit Selecting switch sensitivity for Chapter 8.2 1 –...

  • Page 28: Selecting The Temperature Sensor

    8.1. Selecting the temperature sensor During the use of the thermostat the temperature sensor you want to use can be chosen. In the base case the thermostat displays the measured temperature on the basis of the built-in temperature sensor and switches the set output(s) according to the set temperature.

  • Page 29: Setting Floor Temperature Limit And Corresponding Switch Sensitivity

    so that the main sensor is the built-in temperature sensor, and you use the floor temperature sensor as a safety sensor (2 / In-s control, Out-s limit) then you can check the temperature measured by the floor temperature sensor in the application at the place shown in Figure 2.

  • Page 30: Calibration Of The Temperature Sensor

    OSV value is set to 42°C and the DIF value to 2°C, the outputs of the thermostat will be disabled when the temperature mea- sured by the floor temperature sensor reaches 44°C, and the outputs will resume normal operation only after the temperature measured by the floor temperature sensor goes below 40°C.

  • Page 31: Restoring Default Setting

    • 00/OFF: the thermostat turns off and remains turned off until this mode is altered, regardless whether the thermostat was on or off before the power failure. 01/ON: the thermostat returns to the same state in which it • was before the power failure (default setting). Attention! Bear in mind that in case of a power outage any setting of the thermostat will be stored on an external ser- ver therefore updating of data on the server takes a few...

  • Page 32: Basic Operation Of The Thermostat

    9. BASIC OPERATION OF THE THERMOSTAT When it is switched on, on the basis of the temperature measured by itself and currently set (manually or through programming), the ther- mostat controls the apparatus(es) (e.g. gas boiler, pump) connected thereto, considering the switch sensitivity of the thermostat (+/- 0.5°C). This means that when the temperature is set to 22°C on the thermos- tat then the relay outputs of the thermostat will close at temperatures below 21.5°C (they give a switch-on command, i.e.

  • Page 33: Switching Between On And Off Positions And Modes Of The Device

    10. SWITCHING BETWEEN ON AND OFF POSI- TIONS AND MODES OF THE DEVICE The thermostat has the following 2 positions: • Off position • On position You can switch between off and on positions in the following way: • Using phone application: by tapping the icon •...

  • Page 34: Manual Mode

    You can switch between the modes in the following way: • Using phone application: by touching icons • On the thermostat: touching the button The currently selected mode is indicated as follows: • In the phone application: manual mode by the icon and programmed auto mode by the icon...

  • Page 35: 0.2. Programmed Auto Mode

    The currently set temperature can be modified in the following way: • Using phone application: ͦ with the icons ͦ moving the slide (groove) on the circular scale • On the thermostat: with the buttons 10.2. Programmed auto mode 10.2.1 Description of the programmed mode Programming means setting of switching times and selection of corresponding temperature values.

  • Page 36: Description Of The Steps Of Programming

    and 2 switches per day for 2 days of the weekend • 6+1 mode: setting 6 switches per day from Monday till Saturday and 2 switches on Sunday • 7+0 mode: setting 6 switches per day for every day of the week If you do not need all adjustable switches on certain days (e.g.
  • Page 37 - 123456,7: 6+1 mode - 1234567: 7+0 mode c) Switches belonging to a given programming mode are below the indication of the programming mode. You can modify data (time, temperature) of switches by tapping the value concerned. d) To complete programming and return to the screen belon- ging to the thermostat touch the <...
  • Page 38 - for 7+0 mode: 1234567 Now touch the button again. c) Following this, you can specify or modify various switch times and temperatures as follows: - You can switch between switch times with the but- ton. - With the help of you can switch between data belonging to switch times (temperature, hour value of the time, minute value of the time).

  • Page 39: Modifying Temperature Until The Next Switch In The Program

    10.2.3. Modifying temperature until the next switch in the program: When the thermostat is in programmed automatic mode but you want to modify the set temperature temporarily until the next switch in the program, you can do this in the following way: • Using phone application: with the icons or mo- ving the slide (groove) on the circular scale •...
  • Page 40 can be due to several reasons. The problem is most probably caused by the Wi-Fi router being used. It is expedient to restart routers from time to time, by switching off and on the power supply. In most cases this type of problems can be eliminated. When the product is still inaccessible on the interface after a few minutes then we propose to reconnect the product to the Wi-Fi network as described in Chapter 6.5.
  • Page 41 - 41 -...

  • Page 42: Technical Data

    12. TECHNICAL DATA • Trademark: COMPUTHERM • Model identifier: E300 • Temperature control class: Class I • Contribution to the efficiency of seasonal space heating: 1 % • Temperature measuring range (floor and internal temperature sensors): 0 °C – 50 °C (in 5 °C steps) •...
  • Page 43 • Standby power consumption: 0.5 W • Dimensions: 86 x 86 x (17 + 33) mm • Mass: thermostat: 185 g + floor temperature sensor: 60 g - 43 -...
  • Page 44 The COMPUTHERM E300 type Wi-Fi thermostat complies with Directives RED 2014/53/EU and RoHS 2011/65/EU QUANTRAX Kft. Manufacturer: H-6726 Szeged, Fülemüle u. 34. Telephone: +36 62 424 133 • Fax: +36 62 424 672 E-mail: iroda@quantrax.hu Web: www.quantrax.hu • www.computherm-hungary.hu Country of origin: China...

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