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, the thermal fluid used in flat panel solar collectors is called "antifreeze" and is not usually called thermal fluid. Antifreeze can also be used, but it should not be too thick. There is a nozzle under the water tank. Connect the hose to it, open the valve and pump it under pressure.
Specific operation: First pay attention to check whether the water tank is single injection hole type or double injection hole type (with overflow port). The two methods of adding antifreeze. to the water tank are: The difference.
How to add antifreeze to a single-hole fill port type water tank: Prepare the standard professional fill funnel and bucket offilling the business. Connect the filling funnel to the filling port of the hot water tank.
Pour the antifreeze contained in the barrel directly into the circulation pipe of the system through the liquid filling funnel, so that the heat exchanger antifreeze liquid fills all the circulation pipe of the collector and the heat collection. way, fill the liner layer of the water tank and stop filling when the antifreeze flows from the vent hole of the flushing funnel. Remove the replenishment funnel at the replenishment port, install a silk plug to seal the replenishment port, and install the decorative replenishment port cover.
How to add antifreeze to a double injection hole type water tank (with overflow port): Connect the filling funnel to the sto tank fill porthot water storage. Pour the antifreeze contained in the barrel directly into the system circulation pipeline through the liquid filling funnel, so that the heat exchange antifreeze liquid fills the heat collector and the heat collection circulation system , and fills the shell layer of the water tank.
When the heat exchanger antifreeze fluid overflows from the overflow port, stop filling. Remove the replenishment funnel at the replenishment port, install metal caps to seal the replenishment port and overflow port, and install the decorative covers for the replenishment port and overflow port .