The documentation provides the necessary information for appropriate use of the product. It informs
the user to ensure efficient execution of the installation, operation or maintenance procedures.
The content of this document is based on the information available at the time of publication. The
original version of the document was written in English.
For safety and environmental protection reasons, the safety instructions given in this documentation
must be strictly followed.
This manual is a reference and will not include every system installation situation. The person
installing this equipment should have:
• Training in the 700 Logix series controllers and water softener installation;
• Knowledge of water conditioning and how to determine proper controller settings;
• Basic plumbing skills.
This document is available in other languages on https://www.pentairaquaeurope.com/productfinder/product-type/control-valves
1.2. Release management
RevisionDateAuthorDescription
A15.06.2017STFFirst edition
1.3. Manufacturer identifier, product
Manufacturer:Pentair Manufacturing Italy Srl
Via Masaccio, 13
56010 Lugnano di Vicopisano (PI) – Italy
TC ............................................................ Time Clock
1.5. Norms
1.5.1. Applicable norms
Comply with the following guidelines:
• DM174: "Regulation of materials and objects that can be used in stationary collection, treatment,
supply and distribution of water intended for human consumption"
• Attestation de Conformité Sanitaire (ACS): "Test and Certification valid for France performed by
independent laboratories for the evaluation of materials and components that are in contact with
drinking water."
• 2006/42/EC: Machinery Directive
• 2014/35/UE: Low Voltage Directive;
• 2014/30/UE: Electromagnetic compatibility;
• 2011/65/EC: Restriction of use of certain hazardous substances in electrical and electronic
equipment (RoHS);
Pentair Quality System EMEA products benefit, under specific conditions, from a manufacturer
warranty that may be invoked by Pentair’s direct customers. Users should contact the vendor of this
product for applicable conditions and in case of a potential warranty claim.
Any warranty provided by Pentair regarding the product will become invalid in case of:
• Improper installation, improper programming, improper use, improper operation and/or
maintenance leading to any kind of product damages;
• Improper or unauthorized intervention on the controller or components;
• Incorrect, improper or wrong connection/assembly of systems or products with this product and
vice versa;
• Use of a non-compatible lubricant, grease or chemicals of any type and not listed by the
manufacturer as compatible for the product;
• Failure due to wrong configuration and/or sizing.
Pentair accepts no liability for equipment installed by the user upstream or downstream of Pentair
products, as well as for process/production processes which are installed and connected around or
even related to the installation. Disturbances, failures, direct or indirect damages that are caused by
such equipment or processes are also excluded from the warranty. Pentair shall not accept any
liability for any loss or damage of profits, revenues, use, production, or contracts, or for any indirect,
special or consequential loss or damage whatsoever. Please refer to the Pentair List Price to know
more about terms and conditions applicable to this product.
Warns of a risk of minor injury or major
material damage to the device or
environment.
Danger
Warns against serious personal injury or
death.
Note
Comment
2.2. Safety tags location
A
Warning
Warns against serious personal injury
and damage to health.
A
Mandatory
Standard or measure to apply.
A
Prohibition
Restriction to be observed.
Note
Ensure that the safety tags on the device are completely legible and clean. If necessary,
replace them with new tags and put them in the same places.
2.3. Hazards
All the safety and protection instructions contained in this document must be observed in order to
avoid temporary or permanent injury, damage to property or environmental pollution.
At the same time, any other legal regulations, accident prevention and environmental protection
measures, as well as any recognized technical regulations relating to appropriate and risk-free
methods of working which apply in the country and place of use of the device must be adhered to.
Any non-observation of the safety and protection rules, as well as any existing legal and technical
regulations, will result in a risk of temporary or permanent injury, damage to property or
environmental pollution.
Only qualified and professional personnel, based on their training, experience and instruction as well
as their knowledge of the regulations, the safety rules and operations performed, are authorized to
carry out necessary work.
2.3.2. Material
The following points must be observed to ensure proper operation of the system and the safety of
user:
• Be careful of high voltages present on the transformer (230V).
• Do not put your fingers in the system (risk of injuries with moving parts and shock due to electric
voltage).
2.4. Hygiene and sanitization
2.4.1. Sanitary issues
Preliminary checks and storage
• Check the integrity of the packaging. Check that there is no damage and no signs of contact with
liquid to make sure that no external contamination occurred.
• The packaging has a protective function and must be removed just before installation. For
transportation and storage appropriate measures should be adopted to prevent the
contamination of materials or objects themselves.
Assembly
• Assemble only with components which are in accordance with drinking water standards.
• After installation and before use, perform one or more manual regenerations in order to clean
the media bed. During such operations, do not use the water for human consumption. Perform a
disinfection of the system in the case of installations for treatment of drinking water for human
use.
Note
This operation must be repeated in the case of ordinary and extraordinary maintenance. It
should also be repeated whenever the system remains idle for a significant time.
Note
Valid only for Italy
: In case of equipment used in accordance with the DM25, apply all the
signs and obligations arising from the DM25.
2.4.2. Hygiene measures
Disinfection
• The materials used for the construction of our products meet the standards for use with potable
water; the manufacturing processes are also geared to preserving these criteria. However, the
process of production, distribution, assembly and installation, may create conditions of bacterial
proliferation, which may lead to odor problems and water contamination.
• It is therefore strongly recommended to sanitize the products. See 7.2. Sanitization, page 40.
• Maximum cleanliness is recommended during the assembly and installation.
• For disinfection, use Sodium or Calcium Hypochlorite and perform a manual regeneration.
The graph shows the pressure drop created by the valve itself at different flow rates. It makes it
possible to predetermine the maximum flow rate going through the valve depending on the system
settings (inlet pressure etc). It also makes it possible to determine the valve pressure drop at a given
flow rate, and therefore to evaluate the system pressure drop vs flow rate.
The Logix 740 and 760 controllers have the capability to produce a low level of chlorine to chlorinate
the resin bed during regeneration. A check salt light will indicate when the user needs to add salt to
the brine tank. Potassium chloride or sodium chloride may be used.
No.Operation
AUnplug the wall-mounted transformer.
BShut off water supply or put bypass valve(s) into bypass position.
CRelieve system pressure before performing any operations.
DUnlock the cover (2) from the slide clips (1) (one on each side of the valve).
ERemove the controller (3) by pressing on (4).
FConnect the small chlorine generator connector to the back of the controller (5).
Remove the existing refill controller (6) with the ball (7) from the valve and replace it with
G
the one provided in the kit.
Connect the other end of the cable to the refill controller previously installed.
H
Connect firmly to ensure a good contact.
IReverse above procedure steps to rebuild.
Note
No programming is necessary for the chlorine generator to work properly on the controller.
The system will be automatically functional after the chlorine generation senses brine for
the first time. There is a check salt light on the front of the controller that will illuminate
when there is no brine present during the brine draw.
Tightening the adjusting screw provided by the kit will force the bypass flapper open. The open flapper
will allow untreated (hard) water to blend with the treated water supply. As the adjusting screw is
turned in, the hardness of the outlet water increases.
Loosening the adjusting screw will allow the bypass flapper to close. The closing action will blend less
untreated water into the outlet flow.
To blend a specific amount of hardness into outflow, adjust the screw and test the water. Repeat the
following procedure as needed until the desired harness level is reached.
No.Operation
AInsert the nut (3) into the blending valve orifice (2).
BInsert the adjusting screw (4) through the top plate and then through the nut.
CTighten the adjusting screw (4) until it touches the bypass flapper (1).
DAdjust the position of the screw (4) until the desired hardness level of water is reached.
3.5. System regeneration cycle (8-cycles operation)
Service (downflow) — cycle C0
Untreated water is directed down through the resin bed and up through the riser tube. The hardness
ions attach themselves to the resin and are removed from the raw water being exchanged on the resin
beads against sodium ions. The water is conditioned as it passes through the resin bed.
Backwash (upflow) — cycle C1
The flow of water is reversed by the valve and directed down the riser tube and up through the resin
bed. During the backwash cycle, the bed is expanded and debris is flushed to the drain, while the
media bed is remixed.
Brine (downflow) — cycle C2
The controller directs water through the brine injector and brine is drawn from the brine tank. The
brine is then directed down through the resin bed and up through the riser tube to the drain. The
hardness ions are displaced by sodium ions and are sent to the drain. The resin is regenerated during
the brine cycle. When the air check valve closes brine drawing finishes, and then the slow rinse phase
starts.
Slow rinse (downflow) — cycle C3
Repressurize cycle (hard water bypass flapper open) — cycle C4
This cycle allows the air and water to hydraulically balance in the valve before continuing the
regeneration.
Fast rinse (downflow) — cycle C5
The controller value directs water down through the resin bed and up through the riser tube to the
drain. Any residual brine is rinsed from the resin bed, while the media bed is re-compacted.
2nd Backwash (upflow) — cycle C6
2nd Fast rinse (downflow) — cycle C7
Brine refill — cycle C8
Water is directed to the brine tank at a rate controlled by the refill controller, to create brine for the
next regeneration. During brine refill, treated water is already available at the valve outlet.
Unfiltered water is directed down through the media and up through the riser tube. The water is
filtered as it passes through the media.
Backwash — cycle C1
The flow of water is reversed by the valve and directed down through the riser tube and up through
the media. During the backwash cycle, the media is expanded and debris is flushed to the drain.
Repressurize cycle (hard water bypass flapper open) — cycle C4
This cycle allows the air and water to hydraulically balance in the valve before continuing the
regeneration.
Fast rinse — cycle C5
The valve directs water down through the media and up through the riser tube to the drain while the
media is re-compacted.
In filter configuration, the valve body, the camshaft and the controller are identical to the one used for
softening. The only difference is related to the valve configuration.
In filter mode, the injector size installed in the valve does not matter, it is only required to allow intern
pressure balancing during cleaning cycles. Refill flow controller is plugged.
The DLFC used is now related to the tank size and media type.
Backwash flow
control
[gpm]
4.3. Cycle time calculation
All the Logix controller range automatically calculates the unit capacity as well as the cycle time.
No calculations are therefore required.
Ref. MKT-IM-011 / A - 15.06.201719 / 64
Installer Manual Performa 263-268 / LOGIX 740-760 - System sizing
TOTALBRINE DRAW
psi
Injector "F" (Peach)
For 7" Tanks
Injector "G" (Tan)
For 8" Tanks
Injector "H" (Light Purple)
For 9" Tanks
Injector "J" (Light Blue)
For 10" Tanks
Injector "K" (Pink)
For 12" Tanks
Injector "L" (Orange)
For 13 " and 14" Tanks
gpm
psi
psipsi
psipsi
barbar
barbar
barbar
gpmgpm
gpmgpmgpm
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
m
3
/h
RINSE
4.4. Injector flow rates (tables)
The following tables represent the injectors flow rate as a function of the inlet pressure for the
different injector sizes.
20 / 64Ref. MKT-IM-011 / A - 15.06.2017
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