Multi-zone Wi-Fi thermostat with wireless touch button controllers

The basic package of the device includes two wireless programmable Wi-Fi thermostats and a receiver. If required, it can be expanded with 6 more COMPUTHERM E800RF (TX) Wi-Fi thermostats. The receiver receives the switching signals of the thermostats, controls the boiler and gives commands to open/close the heating zone valves (max. 8 zones) belonging to the thermostats, as well as to start the pump connected to the common pump output. The zones can be operated separately or even simultaneously. This way only those rooms are heated at a given time, whose heating is required. With internet access, devices connected to the thermostat can be remotely controlled and their operation can be checked using your mobile phone or tablet. The thermostats enable you setting the switching sensitivity, calibrating the heat sensor, easy switching between cooling and heating modes and locking the control buttons. We recommend it for places where programmability and the division of the heating system into zones are needed, and remote control, accurate temperature measurement and temperature setting, portability and switching accuracy are also important.

Technical data:

Technical data of the thermostats (transmitters):

  • User interface: touch buttons, mobile application
  • Adjustable temperature range: 5 °C to 99 °C (in 0.5 °C increments)
  • Temperature measurement accuracy: ±0.5 °C (at 25 °C)
  • Thermometer calibration range: ±3.0 °C (in 0.1 °C increments)
  • Selectable switching sensitivity: ±0.1 °C to ±1.0 °C (in 0.1 °C increments)
  • Supply voltage of the thermostat: USB-C 5 V DC, 1 A
  • Operating frequency: RF 433 MHz, Wi-Fi (b/g/n) 2.4 GHz
  • Transmission distance of the RF communication: approx. 250 m in open terrain

Technical data of the receiver:

  • Supply voltage 230 V AC, 50 Hz
  • Switchable voltage of the relay that controls the boiler: max. 30 V DC / 250 V AC
  • Switchable current of the relay that controls the boiler: 3 A (1 A inductive load)
  • Voltage and loadability of pump outputs: 230 V AC, 50 Hz, 10(3) A
Computherm - Wi-fi termosztátok -  COMPUTHERM E800RF - Quantrax Kft.
Computherm - Wi-fi termosztátok -  COMPUTHERM E800RF - Quantrax Kft.
Computherm - Wi-fi termosztátok -  COMPUTHERM E800RF  - Quantrax Kft.
Computherm - Wi-fi termosztátok -  COMPUTHERM E800RF - Quantrax Kft.
Computherm - Wi-fi termosztátok -  COMPUTHERM E800RF  - Quantrax Kft.

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What purpose can the COMPUTHERM E800RF Wi-Fi thermostat be used for?

The COMPUTHERM E800RF Wi-Fi room thermostat has been specifically designed to control heating and cooling systems. The thermostat connects your smart phone or tablet to the device to be controlled remotely.  With the help of E800RF you can set the temperature of your home hour by hour, and you can set and control it via the Internet.

Turning  on  and  off  the  controlled  appliance  allows  you  to  maintain  constant  comfortable temperature without suffering any unnecessary energy losses. This product is especially useful when you do not use your flat or house according to a predefined schedule, you leave your home for an uncertain period of time during the heating season or you intend to use your holiday home during the heating season as well.

The appliance can be easily controlled via the Internet or by using a touch screen interface, and its operating conditions can be inspected continuously. The thermostat is particularly suitable for controlling underfloor heating systems, thanks to the connectable floor temperature sensor. The thermostat has two potential free relays which are switching at the same time therefore two completely independent devices can be controlled, and a heating system can be divided into zones without a separate zone controller.

In addition, the thermostat is also suitable for controlling electrical and electronic devices which can be turned on and off by interrupting and resuming power supply.

How E800RF  will reduce the total amount of your bill?

With E800RF you can set your desired temperature for every hour of the day and night. This way the temperature in your home always meets your requirement. It provides comfort without consuming energy unnecessarily. It always consumes as much energy as needed and you can save up to 30 percent of your heating costs. In addition, remote control can also save energy for you because this way you can remotely turn off the device to be controlled when you are away then turn it on later.

What type of appliances can be controlled by COMPUTHERM E800RF ?

COMPUTHERM E800RF type switching-mode room thermostat is able to control vast majority of the boilers and air-conditioning equipment available on the Hungarian market. It can be easily connected to any gas boiler having a two-wire thermostat connection point and to any air conditioning apparatus or electrical apparatus, regardless of whether they have a 24 V or 230 V control circuit.

Can E800RF be used for air-conditioning equipment?

The E800RF can also be used to control an air conditioner. The thermostat must be switched to cooling mode in the application or using the thermostat's touch buttons. In this case, it is not necessary to change the connection.

Can E800RF be used to control a heating system only?

No, the appliance is able to control air-conditioning equipment and any other device that can be operated in practice only with the on/off function.

What type of battery / mains supply is required for the operation of E800RF ?

To operate the central unit with touch buttons, a voltage of 5 V DC is required, which can be provided by connecting the mains adapter and cable included in the basic package of the device to a 230 V mains power supply. The receiver unit operates directly from a 230 V mains supply. No battery is required to operate the device.

Where can you buy it?

Search  this  product  at  our  reseller  partners.  The  list  of  our  reseller  partner  is  available  at  the following link: Partners.

Where you can find the Instruction Manual of the appliance?

Installing and operating instructions for the E800RF thermostat are available at the following website: Instruction Manual

From where can you download mobile application of E800RF?

If you use an Android operating system you can download the application from Google Play Store. If you use iOS operating system you can download the application from iTunes Store. The name of the application is COMPUTHERM E Series.

How many E800RF appliances can be controlled from a single telephone?

The number of the appliances is unlimited. Every commissioned E800RF appliance can be added to your phone application and can be controlled from your phone.

Will several E800RF thermostats used in the same flat disturb each other’s operation?

No. Each thermostat is connected to the local Wi-Fi network separately and this solution guarantees reliable and trouble-free operation of the appliances.

Is it absolutely necessary to have a Wi-Fi connection with Internet access for using E800RF?

The appliance is able to operate with full functionality even without having a Wi-Fi connection with Internet access by means of the touch keys of the thermostat, but the thermostat can be controlled remotely only if it is connected to a Wi-Fi connection with Internet access.

How can you connect the appliance?

For   more   detailed   information   please   refer   to   the   Instruction   Manual   of   the   appliance (Instruction Manual).

Where to locate centraling and receiving units of the thermostat?

It is expedient to locate the thermostat in a room where you stay regularly or a long period of time so that the thermostat is oriented in the direction of the natural ventilation of the room but is not exposed to draught or extreme heat (e.g. sunlight, refrigerator, chimney, etc.). Its optimal location is at a height of 0.75-1.5 m from the floor level.

The receiver of the Computherm E800RF thermostat should be installed near the boiler, in a place protected from moisture, dust, chemicals and heat. When selecting the location of the receiver, also take it into account that the propagation of radio waves is caused by large metal objects (eg boilers, buffer tanks, etc.) or metal building structures may be adversely affected. If possible, we recommend to install the receiver at a distance of at least 1-2 m from the boiler and other large metal structures, at a height of 1.5-2 m, to ensure interference-free radio frequency communication. We recommend to check the reliability of the radio frequency connection at the selected location before installing the receiver. Do not install the receiving unit beneath the cover of the boiler or in the immediate vicinity of hot pipes or pumps because this may cause damage to the parts of the appliance and compromise the wireless (RF) connection. We also recommend that the power is preferably supplied to the receiving unit from a socket other than that of the boiler (and from another phase, if it is possible), and line power must not be supplied to the receiving unit from the boiler on any account. To prevent electric shock ask a professional to connect the receiving unit to the boiler.

Can temperature sensors be connected to E800RF appliance?

No, it is not possible to connect an additional temperature sensor to the device.

What should I do when the appliance switches but 230 V mains voltage does not appear at its output?

The appliance has potential free (voltage free) output connection points therefore 230 V voltage normally does not appear at its outputs, it only links the two connected wires or disrupts the connection between them. If you want 230 V voltage to appear at the output of the appliance when it is switched off then you have to connect a mains phase wire to one of the connection points according to the Instruction Manual. Before connection the phase wire must be de-energized and the connection must be carried out by a competent person.

What should I do if I am of the opinion that the thermometer of the thermostat measures inaccurately?

Temperatures measured by the appliance can be calibrated and the modified temperature values appear on the display. Calibration of measured temperatures can be carried out according to Chapter 11.2. of the Instruction Manual.

What should you do if the signal of your Wi-Fi router is weak and thus E800RF is outside the range of the router?

If it is possible, put the router closer to your E800RF appliance. Another option is to place a Wi-Fi signal booster between the router and E800RF to extend the range of the router.

What should you do if can not conncect the thermostat to the Wi-Fi network?

Download and read the document with our suggestions for Wi-Fi network connection.

What should you do if you encounter a problem related to the Wi-Fi network?

If the appliance cannot be controlled via the Internet because the application indicates that the appliance is inaccessible and does not respond to the modifications then the connection between the appliance and the web interface has been interrupted. This situation may be due to several reasons. The problem is most probably caused by the Wi-Fi router being used. It is expedient to restart the routers from time to time by interrupting and restoring power supply. In most of the cases this type of problems is solved by restarting the router. If the appliance is still inaccessible at the front end after a few minutes have elapsed then it is recommended that the appliance is reconnected to the Wi-Fi network according to Chapter 8.2. of the Instruction Manual. If the connection is successful but the appliance is still inaccessible then it is recommended that the router is set to factory default, because it may occur that the device cannot be connected to the Internet because of some settings. While the thermostat is inaccessible via the Internet you can control it manually with the touch keys of the thermostat.

How does this product continue to function after a power outage?

The appliance does not work without power supply but it can memorize the settings. If the power supply  is  disturbed  (power  outage),  it  is  able  to  continue  to  function  without  any  external intervention after the power supply is restored, if this option is chosen among settings (see Chapter 11.4. of the Instruction Manual).

How is default setting of the appliance restored (reset)?

All settings of the thermostat, except for date and time, are set back to the factory default settings according to Chapter 11.6. of the Instruction Manual.