Unit installation

SPECIAL NOTE: Do not run water through the solar panels at night or on very cloudy days. This will have a
cooling effect and counteract the heat pumps heat input to the pool water. There should always be a vacuum relief
valve on the solar panels to eliminate static pressure. Do not run the solar and the heat pump when there is no
available heat coming from the solar. The user must manually turn solar off & on if there is no automatic
device installed by the solar contractor. These automatic solar switching devices are usually optional.
PLUMBING WITH SOLAR PANELS
15
Always plumb through the heat pump first before plumbing to solar. If the water flow is not adequate to provide
proper flow for both, you will have to operate one or the other by adjusting the 3-way valve accordingly or
increase your pumps size. Low water flow to the heat pump will cause the unit to cycle on & off. In some cases
an external flow switch may have been installed in place of the existing pressure switch, if the draining of the solar
panels effect the heater. A special use water pressure switch may be substituted for the factory water pressure
switch in most cases, call the factory for advice. The static pressure created by the solar panels may allow the unit
to operate without water flow.
"Vertical"
Special Use Water
Pressure Switch
OR
Or Optional
Special Use
Water Pressure
Switch