300 Litre Roof Mounted Solar Hot Water Heater with Heat Pipe

How to use the solar water heater controller: 1. Users can set the upper temperature limit and the upper water level limit according to the relevant setting keys. When you need to add water, you can press and hold the water level key for a few seconds until you hear a "beep" sound, and you will see the indicator light showing the temperature and timed water addition begin to flash. If you press the water level key repeatedly, you can set the time for timed water addition, which is very convenient.

2. During long-term use, if the water level sensor fails, the user can force water filling by pressing the water filling button. At the same time, there will be a buzzer reminder every minute during water filling to ensure that there is no water overflow, and the water filling will be automatically turned off after a period of water filling.  

3. If the water quality is not pure or the sensor is used for a long time and scale accumulates, the highest water level will not be detected, which will affect household water use. The user can jump the sensitivity jumper switch of the sensor in the junction box from low to high. 4. When the water supply pressure is low, the user can select the water filling boost function. At this time, the controller opens the solenoid valve and starts the water pump to pressurize. After the water is full, both will be closed at the same time.