EcoOnline Perf
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Solar Pool Heating System -- Installation & User Manual
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Page 47
24.4
Configuration 3: Manual/Timer/Motorized Valve System
Notes:
Manual or motorized three-way valve (9). (Note: automatic controls are omitted for clarity).
Advantages:
Disadvantages:
* Manual system requires no extra pump required
* Manual system, needs to be turned off/on or on a timer
* Only filtered water runs through collectors
* Large main filter pump needs to run all day for solar
* Can be retrofitted to pools that don’t have separate
solar provisions
* Motorized three-way valve and controller can be
retrofitted later
* Requires specialized motorized valve and controller to
automate
* Increases pressure and decreases flow rate in the filter
system
* Not recommended for two story installations
For manual pool heating systems running off a main pool filter pump, please check that the
pump is large enough to accommodate the extra load of supplying water to the collectors
at the required pump height. Generally, this configuration is not recommended for two
story or greater installs.