The wall boiler cannot use solar energy at the same time as it is turned on. This should be because the wall-mounted boiler has a water inlet connected to the cold water pipe of the tap water and the water outlet. is connected to hot water. You can imagine that the cold water pipe runs through the wall boiler and is connected to the hot water. In this way, the wall boiler and if solar energy is used at the same time, the cold water will pass through the wall boiler to the hot water to provide solar water continuously, so it cannot not be used at the same time.
It is not important to connect the solar hot water and the wall boiler. hot water in series. The reasons are:
1. The functions of solar energy and wall-mounted boilers are different:
Solar hot water is domestic hot water, used for bathing, laundry, etc. .
The wall-mounted boiler consists oftwo parts: hot water heating and domestic hot water (same as above).
2. Since the solar water storage bucket has its own heat preservation function, the temperature can reach the bath temperature all year round, and the temperature is relatively high, it should be mixed with water. cold water before. to use. Therefore, there is no need to mix with the wall boiler, and there is no need for the wall boiler to carry out secondary heating. Therefore, the serial connection is of little importance.
3. The wall boiler heating system is a closed system (isolated from the atmosphere), while most solar hot water systems are open (with exhaust holes connected to the atmosphere), they cannot therefore not be directly connected together for heating.
4. The wall-mounted boiler can provide heating around the clock, whilesolar energy can only collect light and heat during the day. Once heat is lost, it cannot be replenished and reused. Solar heating is therefore not of great importance, due to the issue of using light and heat and storing thermal energy.