1. المقدمة
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.
المميزات الرئيسية:
- شاشة لد بإضاءة خلفية
- Weekly Programmable (5/2, 6/1, or 7-day modes)
- Integrated Room Sensor and External Floor Sensor
- Display Calibration/Offset Function
- وظيفة الحماية من الصقيع
- Key Lock / Child Lock
2. معلومات السلامة
- يجب أن يتم إجراء التثبيت بواسطة كهربائي مؤهل وفقًا للوائح الأسلاك المحلية.
- 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.
- تأكد من أن جميع التوصيلات آمنة لمنع المخاطر الكهربائية.
- تم تصميم هذا الجهاز للاستخدام الداخلي فقط.
3. محتويات العبوة
تأكد من وجود جميع العناصر في العبوة:
- Mi-Heat E51 Room Thermostat
- External Floor Sensor (NTC 10 kOhm with 2m lead)
- مسامير التثبيت
- دليل المستخدم

4. المواصفات الفنية
| ميزة | مواصفة |
|---|---|
| نوع التركيب | شنت دافق |
| إصدار | سلكي |
| حجم التشغيلtage | 230 فولت |
| الأعلى. تبديل السلطة | 16 أمبير / 3680 واط |
| نوع التحكم | Two-point control ON/OFF |
| درجة حرارة التشغيل | 5-50 درجة مئوية |
| المستشعر | 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) |
| حماية من الصقيع | نعم |
| Floor Limit Range | 5-50 درجة مئوية |
| العرض / الإضاءة الخلفية | نعم/نعم |
| Protection Class IP | IP21 |
| الأبعاد (العرض × الارتفاع × العمق) | 80x90x13 / 43 مم |
5. التثبيت
The Mi-Heat E51 thermostat is designed for flush-mounted installation in standard wall boxes. Ensure power is disconnected before proceeding.
5.1. أبعاد

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

خطوات التوصيل:
- تأكد من فصل التيار الكهربائي من قاطع الدائرة الرئيسي.
- 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. التشغيل
The Mi-Heat E51 thermostat features an intuitive interface with a backlit LCD display and several control buttons.
6.1. الشاشة والأزرار العلويةview

وظائف الأزرار:
- 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): يقوم بتشغيل أو إيقاف تشغيل منظم الحرارة.
6.2. التشغيل الأساسي
- تشغيل/إيقاف التشغيل: Press the Power button to turn the thermostat on or off.
- ضبط درجة الحرارة: 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. البرمجة الأسبوعية
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.
- كرر ذلك لجميع الفترات الزمنية والأيام المطلوبة.
- 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. الصيانة
The Mi-Heat E51 thermostat requires minimal maintenance.
- تنظيف: امسح الشاشة وasinامسح بقطعة قماش ناعمة وجافة. لا تستخدم المنظفات الكاشطة أو المذيبات أو البخاخات الكيميائية، لأنها قد تتلف السطح.
- تقتيش: Periodically check the thermostat for any visible damage or loose connections. If any issues are found, disconnect power and consult a qualified technician.
8. استكشاف الأخطاء وإصلاحها
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| منظم الحرارة لا يعمل | No power supply; Loose wiring; Blown fuse/tripped breaker | Check main power supply; Verify wiring connections; Check and reset circuit breaker/replace fuse. |
| التدفئة لا تعمل | 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. |
| قراءة غير دقيقة لدرجة الحرارة | 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. |
| الشاشة لا تعمل أو تومض | Power fluctuation; Internal fault | 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. الضمان والدعم
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.





