Overview; System Components; Salt Chlorinator Control Panel And Cell Description - Pentair STA-RITE SC-75P Installation Manual

The SC-75 Salt Chlorinator uses a process known as electrolysis to produce chlorine gas which immediately dissolves into a
solution to create Hypochlorite and Hypochlorous acid pool and spa water sanitizer from a low concentration of salt added
to the pool water. Hypochlorite and Hypochlorous kill bacteria, oxidizes organic material, and kills algae, then reverts back to
salt. The SC-75 then reuses the salt and the process starts over again. The SC-75 system is comprised of Cell and Power Center.
The SC-75 Salt Chlorinator is designed only to produce chlorine. The unit does not monitor or control chlorine
levels in the pool or spa water. It is the pool owner's responsibility for monitoring and maintaining free
chlorine levels at the APSP recommended range of 2.0 to 4.0 parts per million (ppm). It is the pool owner's responsibility
to check, on a regular basis, the free chlorine level while the pool pump is running, and adjust the SC-75 accordingly.
Salt is an inherently corrosive material. While the levels of salt required for proper operation of the SC-
75 Salt Chlorinator are relatively low when compared to sea water and other salt solutions, placing any
amount of salt in your pool increases the likelihood of corrosion or other deterioration of pool equipment and any sur-
faces used in and around your pool. Metal parts (including steel pools) and certain natural and man-made surfaces are
particularly susceptible to corrosion and deterioration when used in and around salt water pools. Pentair Aquatic Sys-
tems ("Pentair") does not represent or otherwise guarantee that the proper use of the SC-75 Salt Chlorinator will pre-
vent corrosion or other deterioration of pool equipment and any surfaces used in and around your pool. Consult your
experienced pool professional, who should be able to advise you on the proper material selection, installation tech-
niques for those materials, and the proper use, care and maintenance of those materials for your specific pool type
and location in order to minimize the corrosion and deterioration that is inherent in and around salt water pools.
FOR ALL NEWLY CONSTRUCTED OR RESURFACED PLASTER POOLS: Do not operate the SC-
75 with newly poured or resurfaced pool plaster. Salt is a corrosive element and severe salt
damage can occur to your pool. Wait at least ONE (1) MONTH after construction to allow plaster to cure before
adding salt and operating SC-75. Follow the pool surface manufacturer's guidelines for your specific pool.
FOR NEW VINYL LINER POOLS, contact the manufacturer for recommended guidelines before adding salt and operating
the SC-75.
SC-75 System Components
An SC-75 Salt Chlorinator system consists of one or more of the following ;
• Y1146: Designed for pools up to 75.000liters. the cell will produce the equivalent of 0.45Kg of pure chlorine per
24hours of continuous pool pump run time.
• SC-75P : Power Center. Provides power to the SC-75 cell.
SC-75 Salt Chlorinator Control Panel and Cell Description
The SC-75 includes a control panel with buttons and LED indicators to control the unit and produce chlorine. The SC-75
measures the water temperature and salt level to produce chlorine at the defined output. If the salt level in the pool water
is too low (red on salt display), the cell is turned off until salt is added to the pool. The controller has a self-cleaning cycle
which reverses the cell polarity, reducing calcium buildup. This feature turns the cell on and off at regular intervals to minimize
calcium and scale buildup and further maximizes cell life.
The SC-75 contains the control electronics and bipolar electrodes that electrically produce chlorine when energized with DC
current. Chlorine is generated as pool water containing salt passes through the cell. The chlorine production can be varied
by either adjusting the sanitizer output level on the control panel and/or by varying the number of hours the unit is on each
day. The SC-75 automatically reverses the cell electrode blades every few hours to help clean the cell. This process does
not interrupt the production of Chlorine. The SC-75 also contains a mechanical flow sensor to ensure the proper amount
of water is passing through the cell to allow chlorination to occur. The SC-75 automatically measures the water salinity and
temperature and displays three (3) salinity ranges on the control panel using LED indicators. The KECG includes a 3m. cable
for connection to the Power Center.
SC-75™ Salt Chlorinator OVERVIEW
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