What Do The Components Do - FAFCO ST Installation Manual

WHAT DO THE VARIOUS COMPONENTS DO?
1. The Solar Collectors
These are the heart of your system. They are the "heat exchangers" that collect the sun's heat
and transfer it to the fast-flowing water that is being pumped through them from bottom to top
for optimum efficiency.
2. The Isolation Valves
These two valves are manually operated to isolate the solar system from the filtration
system—primarily used when backwashing the filter, or at any time it is desirable to isolate
the Solar Collectors (i.e. winterization).
3. Diverter Valve
Diverts the pool or spa water to the Solar Collectors.
4. Your Heater
It is only needed for supplemental heat boost. You turn the heater off and on manually, or use
automatic controls.
5 & 6. Your Pump and Filter
These are compatible with your FAFCO Solar System and will continue to do their job
whether or not the solar is turned on. When cleaning the filter the solar system should be
isolated to prevent debris from entering the system.
7. Check Valve
When the pump (5) shuts off, the Solar Collectors (1) will drain. The Check Valve prevents
the water in the panels from flowing backwards through the Filter (6) and backflushing it into
the pool.
8. Vacuum Relief Valve
The recommended location is at the highest point in your system, but it can also be installed at
other locations to break the vacuum
9. End Caps
These seal the headers on the end Solar Collectors in the System.
allow the Solar Collectors to drain.
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