Pre- And Post-Filtration For The S System; System Efficiency; Pretreatment And Pressure Requirements; System Blending Valve - Kinetico Pro S Série Guide D'utilisation

V. S-Series Presentation
Reverse Osmosis and the S-Series
The S-Series water treatment systems utilize reverse osmosis
membrane technology to deliver high quality water for a variety of
applications. Pure water molecules pass through pores in the semi-
permeable membrane while almost all suspended and dissolved
contaminants remain on the surface. A steady stream of water keeps
the surface of the membrane clean and flushes these separated
contaminants to drain. While the ratio between feed water and product
water (permeate) is dependent on a variety of factors, the S-Series has
been engineered to operate at a very high efficiency rate of 65-75%.
The S-Series systems are equipped with EverClean® Rinse which extends
the operating life of the system's membranes by flushing the feed side of
the membrane with high quality permeate water. This two-minute rinse
cycle occurs thirty minutes after the system goes into standby mode.
Note: For installations with atmospheric storage, a minimum 20-gallon
EverClean Rinse storage tank is required.
Pre- and Post-Filtration for the S-Series
Adequate pretreatment must be installed so the feed water to the system meets the operating specifications noted on
page 4. Pretreatment may include softening, chlorine removal, and sediment removal. Depending on the application,
post-filtration may also be required for final polishing.

System Efficiency

The S-Series systems achieve highest efficiency with softener pretreatment or low hardness.
Feed Pressure Requirements
When specifying pretreatment equipment, ensure the feed water pressure at the inlet to the S-Series system does not
fall below 40 psi. All S-Series systems are equipped with a low pressure sensor that protects the system against low
pressure conditions that could potentially damage the system. When inlet water pressure lower than 15 psi is detected,
the system won't start. If the system is running and low pressure is detected, the system goes into protection mode as
outlined on page 17. In order to maintain trouble-free operation of the system, the minimum feed water pressure should
be 40 psi in order to ensure the system is running at full production capacity.

System Blending Valve

This system is equipped with a blending valve that allows the operator to blend filtered water into the RO product water
stream. This is helpful for applications that require a specific TDS or for applications which need less aggressive RO
product water.

System Performance

For best results, a water analysis should be obtained before specifying equipment. Performance of the system is affected
by a number of parameters, most importantly:
• Pretreatment - Pretreatment may include a softener for hardness removal, high capacity sediment filtration,
chloramines reduction filtration, or specialized treatment for membrane foulants such as iron, manganese or
hydrogen sulfide.
• Maintenance - Regular service is required to protect the membrane and system components.
• Feed Water Temperature - Colder feed water temperature reduces system production.
• Feed Water TDS - High TDS levels reduce system production.
• System Pressure - Higher pressure increases water production (within system operating parameters).
• Membrane Age - Membrane production is reduced over time.
• Membrane Fouling - A membrane cartridge will clog or foul over time resulting in lower production as well as reduced
product water purity. In some cases, membrane fouling may be reversed with appropriate membrane cleaning.
S-Series Technical Manual
6
Model S-1400