Mi-Heat E51
Mi-Heat E51 Digital Room Thermostat User Manual
Мадэль: E51
Brand: Mi-Heat
1. Уводзіны
The Mi-Heat E51 digital room thermostat is designed for precise temperature control of electric and water-based underfloor heating systems. It features a backlit display, a 7-day weekly programming function, and frost protection. The thermostat utilizes both an internal room sensor and an external floor sensor to maintain your desired temperature, ensuring comfort and energy efficiency.
Асноўныя характарыстыкі:
- Падсвятленне ВК-дысплея
- Weekly Programmable (5/2, 6/1, or 7-day modes)
- Integrated Room Sensor and External Floor Sensor
- Display Calibration/Offset Function
- Функцыя абароны ад замярзання
- Key Lock / Child Lock
2. Інфармацыя па бяспецы
- Устаноўка павінна выконвацца кваліфікаваным электрыкам у адпаведнасці з мясцовымі правіламі электраправодкі.
- Always disconnect power at the main circuit breaker before installation, maintenance, or removal of the thermostat.
- Do not expose the thermostat to moisture or extreme temperatures.
- Пераканайцеся, што ўсе злучэнні надзейныя, каб прадухіліць пашкоджанне электрычным токам.
- Гэта прылада прызначана толькі для выкарыстання ў памяшканні.
3. Змесціва ўпакоўкі
Праверце наяўнасць усіх прадметаў у камплекце:
- Mi-Heat E51 Room Thermostat
- External Floor Sensor (NTC 10 kOhm with 2m lead)
- Крапежныя шрубы
- Кіраўніцтва карыстальніка

4. Тэхнічныя характарыстыкі
| Асаблівасць | Спецыфікацыя |
|---|---|
| Тып мацавання | Скрытая ўстаноўка |
| Версія | Правадная |
| Аперацыйная Voltage | 230 В |
| Макс. Пераключэнне магутнасці | 16A / 3680 Вт |
| Тып кіравання | Two-point control ON/OFF |
| Працоўная тэмпература | 5-50°C |
| Датчык | Internal and external, NTC with 2m lead |
| Temperature Control Range (Internal) | 0-55°C (Room sensor) |
| Temperature Control Range (External) | 5-55°C (Floor sensor) |
| Абарона ад маразоў | так |
| Floor Limit Range | 5-50°C |
| Дысплей/Падсвятленне | Так/Так |
| Protection Class IP | IP21 |
| Памеры (ШxВxГ) | 80x90x13 / 43мм |
5. Ўстаноўка
The Mi-Heat E51 thermostat is designed for flush-mounted installation in standard wall boxes. Ensure power is disconnected before proceeding.
5.1. Памеры

5.2. Электраправодка
Refer to the wiring diagram below for proper connection. The thermostat supports both electric underfloor heating and water-based underfloor heating (via an actuator).

Крокі праводкі:
- Пераканайцеся, што харчаванне ВЫКЛЮЧАНА галоўным выключальнікам.
- Connect the Live (L) and Neutral (N) power supply wires to the corresponding terminals on the thermostat.
- Connect the heating element or actuator wires to the designated output terminals.
- Connect the external floor sensor cable to the sensor terminals.
- Carefully place the thermostat into the wall box and secure it with the provided screws.
- Restore power and test the thermostat.

6. Аперацыя
The Mi-Heat E51 thermostat features an intuitive interface with a backlit LCD display and several control buttons.
6.1. Display and Buttons Overview

Функцыі кнопак:
- Selection Button (Book icon): Used to enter menu, confirm settings, or switch modes.
- Increase Value Button (Up arrow): Used to increase temperature, time, or navigate menu options.
- Decrease Value Button (Down arrow): Used to decrease temperature, time, or navigate menu options.
- On/Off Button (Power icon): Уключае або выключае тэрмастат.
6.2. Асноўная аперацыя
- Уключэнне/выключэнне харчавання: Press the Power button to turn the thermostat on or off.
- Рэгуляванне тэмпературы: When the thermostat is on, use the Up/Down arrow buttons to adjust the desired set temperature.
- Key Lock / Child Lock: To activate or deactivate the key lock, press and hold the Selection button for a few seconds until the key icon appears/disappears on the display.
6.3. Штотыднёвае праграмаванне
The thermostat allows for 7-day weekly programming with options for 5/2 (weekday/weekend), 6/1 (6 days/1 day), or 7-day individual programming. This feature enables you to set different temperatures for various times of the day across the week.

To set up weekly programming:
- Press and hold the Selection button to enter the programming menu.
- Use the Up/Down arrows to navigate through the programming options (e.g., 5/2, 6/1, 7-day mode, time settings, temperature settings for each event).
- Press the Selection button to confirm each setting and move to the next.
- Паўтарыце для ўсіх патрэбных перыядаў часу і дзён.
- Exit the menu by pressing the Selection button until the main display reappears, or wait for it to time out.
6.4. Frost Protection Function
The frost protection function prevents the temperature from dropping below a set minimum (typically 5°C) to protect pipes and the heating system from freezing. This function is active when the thermostat is in standby or when specifically enabled in the settings.

7. Тэхнічнае абслугоўванне
The Mi-Heat E51 thermostat requires minimal maintenance.
- Уборка: Працярыце дысплей і casinПрацярыце паверхню мяккай сухой тканінай. Не выкарыстоўвайце абразіўныя ачышчальнікі, растваральнікі або хімічныя спрэі, бо яны могуць пашкодзіць паверхню.
- агляд: Periodically check the thermostat for any visible damage or loose connections. If any issues are found, disconnect power and consult a qualified technician.
8. Выпраўленне непаладак
| праблема | Магчымая прычына | Рашэнне |
|---|---|---|
| Тэрмастат не ўключаецца | No power supply; Loose wiring; Blown fuse/tripped breaker | Check main power supply; Verify wiring connections; Check and reset circuit breaker/replace fuse. |
| Ацяпленне не ўключаецца | Set temperature is below room/floor temperature; Thermostat in OFF mode; Wiring issue | Increase set temperature; Ensure thermostat is ON; Check wiring connections to heating system. |
| Няправільныя паказанні тэмпературы | Sensor malfunction; Incorrect sensor type selected; Thermostat placed near heat source/draft | Check sensor connection; Verify sensor type in settings; Relocate thermostat if possible or use calibration function. |
| Дысплей не працуе або мігціць | Ваганні магутнасці; Унутраная няспраўнасць | Cycle power to the thermostat; If problem persists, contact support. |
| Cannot change settings (Key Lock active) | Key Lock / Child Lock is enabled | Press and hold the Selection button until the key icon disappears to deactivate the lock. |
9. Гарантыя і падтрымка
For support or inquiries regarding your Mi-Heat E51 thermostat, please contact us Monday - Friday from 09:00 to 16:00. We offer support and shipping directly from Germany.
Refer to your purchase documentation or retailer for specific warranty details and terms.
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