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Plumbing guidelines
The figure above shows how a typical Heliocol Solar Pool Heating System is plumbed into existing pool
plumbing. Even if your system is not identical to the one shown, the illustration can help you understand
the flow of water from the pool, through the pump, filter, solar system and back to the pool.
Notice that the union check valve is plumbed in
after
the filter. This prevents the filter from being
backwashed by the water draining down from the panels when the pump shuts off.
Notice also that the 2-way valve either diverts the water to the solar system or directly back to the pool. It
Features a 5mm hole through the ball of the valve to enable water in the solar system to drain back to the
pool when the pump shuts off.
1. Using the existing circulation pump the water flows through the filter and then directed to the
collectors.
2. Check valve for preventing backwash of the filter when the collectors drain down.
3. 2 Way valve that directs the water to the collectors when there is efficient sun radiation.
4. Vacuum release valve for automatic draining of the panels after the solar system shuts off.
5. Inlet to the solar panels a
t the lowest side of the bank, using the “reverse return” method.
6. Outlet from the solar panels back to the pool.
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