There are the following precautions for installing flat solar panels: 
Installation position 
-Choose a location facing south and with ample sunlight to ensure that the flat solar collector receives sufficient sunlight throughout the year. It is usually installed in open areas such as roofs, balconies, or courtyards. 
-The installation location should be convenient for pipeline connection and maintenance, and a certain amount of space should be reserved around to avoid being blocked by buildings, trees, etc. from sunlight. 

Basic fixation 
-When installing on the roof, it is necessary to ensure that the roof structure can withstand the weight of the solar equipment, and if necessary, reinforce the roof. 
-Fix the flat solar collector with a bracket, which should be installed firmly. Expansion bolts can be used to fix it to the ground or roof foundation, and rust prevention treatment should be done well. 
pipe connection 
-The connecting pipeline should use high-quality solar dedicated pipelines with good insulation and corrosion resistance. 
-The direction and slope of the pipeline should be reasonable, generally with a certain inclination to facilitate the natural circulation of the medium and avoid air resistance and water hammer phenomena. 
-After installing the pipeline, strict pressure testing should be conducted to check the sealing of the pipeline system and prevent water leakage problems. 
Electrical connection 
-If the flat panel solar system is equipped with electrical equipment such as electric auxiliary heating, the electrical connections must be operated by professional electricians. 
-Ensure good grounding and install leakage protection devices to ensure safe use. 
System commissioning 
-After installation, debug the entire solar energy system. Check the operation of the collector, including whether the temperature rise is normal. 
-Test whether the various functions of the control system, such as temperature control, water level control, etc., are accurate and reliable.