Fafco
®
6
What Do the Various Components Do?
1. The CoolPV
®
System
When used in pool heating applications CoolPV
®
provides enhanced performance by:
Cooling the CoolPV
®
Panels to enhance electrical output.
Returning the heated water to the pool, extending your swim season.
2. Solar Drain Valves
Spigot style valves ensure draining. Some systems may instead connect a hose to the sys-
tem’s lowest point, which can then be run through the downspout of your gutter for easy
ground access.
3. The Isolation Valves
A manually operated valve (3a) is installed in the supply line and allows you to isolate the
CoolPV
®
System from the filtration system. It is primarily used when backwashing the filter
or at any time it is desirable to isolate the system. A check valve (3b) is installed in the re-
turn line to allow isolation and prevent over-pressurizing your system.
4. Diverter Valve
Automatically controlled valve that diverts the pool or spa water to the thermal system.
5. Your Heater
It is only needed to give your pool a supplemental heat boost, or when weather or special
occasions demand higher pool temperatures.
6 & 7. Your Pump and Filter
For optimal performance a variable speed pump is preferred. Please contact your FAFCO
Inc. dealer for more information. Keeping your skimmer and pump baskets clean enhance
performance by ensuring the maximum flow of cooling water. When cleaning the filter the
solar system should be isolated, preventing debris from entering the system.
8. Check Valve
When the pump (6) shuts off, the CoolPV
®
System (1) will drain. A Check Valve prevents the
water in the panels from flowing backwards through the Filter (7) and backwashing.
9. Vacuum Relief Valve (VRV)
Seals the system under pressure while maintaining a vacuum to minimize pumping power
required. The VRV must be located at the highest point in the system.
10. End Caps
These seal the headers on the end Solar Collectors in the System.
11. Solar Automation Controller
The Solar Automation Controller regulates the system automatically. By reading sensors on
the roof and in the pool water, it determines the optimum times run the thermal portion of
your CoolPV system.
