Use a thin tube to inject the thermal fluid and tighten the cap.
1. Open the liquid filling cover in the middle and upper part of the balcony wall-mounted solar water heater tank, unscrew the sealing screw cap and the liquid filling port (upper position). and the observation port (lower position) will appear).
2. Find a rubber hose. First, dip the upper part of the vacuum tube (the part near the water tank) with a damp cloth and scrub it with soapy water. Hold the middle of the tube up. (towards the water tank) with your hands) push or pull hard (rotation is better).
How many times do you need to add liquid after solar installation?
There is a thermal fluid injection port on the water tank. Open the injection port cover and use a thin one. tube to inject antifreeze. He knewTighten the cap.
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 filling funnel and water filling bucket 'business. Connect the filling funnel to the filling port of the hot water tank.
Pour the antifreeze contained inthe barrel directly into the system circulation pipe through the liquid filling funnel, so that the heat exchanger antifreeze liquid fills the entire circulation pipe of the collector and 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 hot water storage tank fill port. Pour the antifreeze from the barrel directly into the system circulation line through the liquid filling funnelof, 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 .
Add it once every 2-3 years
The heat transfer oil inside the solar water heating system is used as the heat transfer fluid, it must therefore be added according to the life of the fluid. Generally, solar thermal oil should be added every 2 to 3 years. But it should also be added depending on the situationreal. When using the solar hot water system, leakage will occur in high temperature and pressure in summer. In this case we also need to add it again.