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Hayward Aqua Rite Pro LS Manual

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USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 11 of 16 AquaRite® Pro LS Rev. D
If AQL-CHEM sensing is NOT used. To find the optimum desired output % setting, start at approximately 50%. Test the
chlorine level every few days and adjust the setting up or down accordingly. It usually takes 2-3 adjustments to find the
ideal setting for your pool/spa and after that, it should only take minor, infrequent adjustments. Because the chlorine
demand of the pool increases with temperature, most people find they have to adjust the desired output up at the peak of
the summer and down during the colder periods.
The AquaRite Pro LS automatically stops generating when the pool water temperatures drops below 12°C. This is usually
not a problem because bacteria and algae stop growing at this temperature. You can override this low temperature cutoff
by using the Super Chlorinate function for a day.
Prevent overchlorination during cold weather: Check chlorine levels periodically. Most pools require less chlorine
during cold weather and the desired output % setting should be lowered accordingly.
MAINTAINING THE AQUARITE PRO LS SYSTEM
To maintain maximum performance, it is recommended that you open and visually inspect the cell every 3 months or after
cleaning your filter. The AquaRite Pro LS will remind you to do this by displaying the message “Inspect/Clean Cell” after
approximately 500 hours of operation.
The AquaRite Pro LS electrolytic cell has a self cleaning feature incorporated into the electronic control’s logic. In most
cases this self cleaning action will keep the cell working at optimum efficiency. In areas where water is hard (high mineral
content) and in pools where the water chemistry has been allowed to get "out of balance", the cell may require periodic
cleaning.
Servicing and Cleaning the AquaRite Pro LS Cell
Turn off power to the AquaRite Pro LS before removing the electrolytic cell. Once removed, look inside the cell and
inspect for scale formation (light colored crusty or flaky deposits) on the plates and for any debris which has passed
through the filter and caught on the plates. If no deposits are visible, reinstall. If deposits are seen, use a high pressure
garden hose and try to flush the scale off. If this is not successful, use a plastic or wood tool (do not use metal as this will
scratch the coating off the plates) and scrape deposits off of plates. Note that a buildup on the cell indicates that there is
an unusually high calcium level in the pool (old pool water is usually the cause). If this is not corrected, you may to have
to periodically clean the cell. The simplest way to avoid this is to bring the pool chemistry to the recommended levels as
specified.
Mild Acid Washing: Use only in severe cases where flushing and scraping will not remove the majority of deposits.
To acid wash, turn off power to AquaRite Pro LS. Remove cell from piping. In a clean plastic container, mix a solution
of water to acetic or phosphoric acid (Like descaler for coffee machine). ALWAYS ADD ACID TO WATER - NEVER
ADD WATER TO ACID. Be sure to wear rubber gloves and appropriate eye protection. The level of the solution in the
container should just reach the top of the cell so that the wire harness compartment is NOT submerged. It may be helpful
to coil the wiring before immersing the cell. The cell should soak for a few minutes and then rinse with a high pressure
garden hose. If any deposits are still visible, repeat soaking and rinsing. Replace cell and inspect again periodically.
WINTERIZING
The AquaRite Pro LS electrolytic cell and flow detection switch will be damaged by freezing water just as your pool
plumbing would. In areas of the country which experience severe or extended periods of freezing temperatures, be sure
to drain all water from the pump, filter, and supply and return lines before any freezing conditions occur. The electronic
control is capable of withstanding any winter weather and should not be removed.
Spring Start-up
DO NOT turn the AquaRite Pro LS on, until the pool water chemistry has been brought to the proper levels. This
information can be found on page 4.
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