The biggest.
There will be two round plastic covers inside the water tank. When you remove them, you will see two antifreeze inlets and outlets blocked by silk plugs. Usually the top one is added and the bottom one is full when it overflows. However, filling this antifreeze can easily cause air blockage. It is best to add it when the light is not strong or it is cloudy and rainy.
The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function.
Does Shengsheng solar water heater need to add heating liquid?
Yes.
How to add thermal fluid to a home solar water heater: There is a thermal fluid injection port on the water tank. Open the injection port cover, use a thin tube to inject l'antifreeze. then tighten the cover. By the way, correction, the thermal fluid currently used in flat panel solar collectors is called "antifreeze" and is not generally called a thermal fluid.
Installation method of wall-mounted solar water heater thermal fluid: 1. First dip the upper part of the vacuum tube (the part near the water tank) with a damp cloth and soapy water then scrub. then hold the middle of the tube up (toward the water tank) ) Push or pull hard (rotation is better) until the bottom head comes out of the groove, then change the angle slightly and push or pull hard down and out (outside the water tank) to remove it. 2. After removing the vacuum tube, wrap a thin wooden stick with a soft cloth, insert it into the tube and push it back and forth several times to remove the scale on the tube wall, then rinse - it in water twotimes. or three times! If you are concerned, you can rinse with vinegar for best results.
Need to add.
There is a thermal fluid injection port on the water tank. Open the injection port cover, use a thin tube to inject antifreeze, then tighten the cover. By the way, correction, the thermal fluid currently used in flat panel solar collectors is called "antifreeze" and is not generally called a thermal fluid.