Pentair STA-RITE SC-75P - Section 3 Operating SC-75 Salt Chlorinator; Initial Startup Period; Operation; Use of an external Pool Pump Timer is not required

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English
Secon 3
Operang SC-75™ Salt Chlorinator
This secon describes the startup procedure and operang instrucons for SC-75 Salt Chlorinator.
Before starng up and operang SC-75, the pool in which the SC-75 will be used must have been completed and lled with
water for at least one (1) month (for plaster pools) and the pool water salt level must be stable and being maintained at
3.300 to 3.600 ppm.
Inial Startup Period
For the rst thirty (30) days of cell operaon, the self-cleaning cycle, is factory set to two (2) hours. Aer thirty (30) days has
elapsed, SC-75 will automacally set itself to three (3) hour self-cleaning cycle. This feature will clean the SC-75 blades more
oen during the inial installaon, then go to a more standard self- cleaning cycle for longer blade life.
Operaon
Use of an external Pool Pump Timer is not required
The SC-75 is designed to supply a sucient amount of chlorine to sanize pool water on a daily basis. If the pool pump is
connuously running and the SC-75 is operated 24 hours a day at 100%, more chlorine would be generated than would be
needed by most pools (2-4 ppm, per APSP recommendaons). The SC-75 has its own internal mer which cycles the electrolyc
cell on and o depending on what percent the Sanizer Output is set.
The SC-75 is designed only to produce chlorine. The SC-75 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
2.0 to 4.0 parts per million (ppm) according to APSP recommendaons. It is the pool owner’s responsibility to check the free
chlorine level while the pool pump is running on a regular basis, and adjust the Sanizer Output on the SC-75 accordingly.
Before aempng to operate SC-75 refer to “General Recommendaons and General Cauons”, at the end
of this secon, and “Pool Water Preparaon” in previous secon. Also, do not adjust Sanizer Output above
20% unl it is certain that salt has been dissolved in your pool. Operang without salt will result in the unit turning o and
lighng the ADD SALT light on the salt display. No chlorine will be produced unl salt is added to the pool.
If you use a Pool Pump Timer
The Associaon of Pool and Spa Professionals (APSP) recommends that all water in a residenal pool pass through the
ltraon system at least once every 24 Hours (referred to as pool water turnover). However, many factors have an eect on
actual pump and lter system run mes. Pool size, source of water, direct sun light, indoor/outdoor, screened/unscreened,
ltraon system, cold or hot weather, swimmer load, rain, organic debris, algae, etc., are all factors which contribute to either
more or less pool pump and lter system run mes. Because of these dierences, it is extremely dicult to set a standard
inial run me (starng point) for the pool pump and chlorinang system.
Try inially seng the pool pump mer to twelve (12) hours. It will take a few days to achieve the correct amount of pool
pump operang me. When SC-75 is wired with a pool pump mer, results will vary greatly from one pool installaon to the
next, so this should be discussed with your pool professional. The key points are:
• Operate the pool pump at least the minimum me needed for good ltraon and adequate chlorine producon by the
SC-75, according to your pool professional’s recommendaons.
• While pool pump mers can reduce energy consumpon, the pool pump must be running for the SC-75 Salt Chlorinator to
provide chlorine and must remain running long enough to maintain proper chlorine levels (i.e., 2.0 - 4.0 ppm of free available
chlorine).
Note: Excepon - For Cold Weather Operaon: The unit turns o in water temperatures below 12° C, and will not produce
chlorine. This feature extends the life of the cell.