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HighPure Deluxe Reverse Osmosis System

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3. Page 42 GION310S a ces 6 K IYNSSIYd 1504 5344 YWWIJYd LSI SINSNOdWOO AdN v 01 1 W3I3AMO4 9 5 3NVSBW3A 3YNSS3Yd LL93rJY 3 5533 AlddNS 9 v INWA 03H2 M0193T102 SWINY3d 9 AdN 1 Wd9 OZ Z 3l8VISnrav dnd 3unsS3ud 5 ALALINONOD JAN 9 1 AYINI OION310S 01 1 YILINMONI 1933Y BYNSSIYd 0317131509 1 31033N 5 318 218 ONISNOH AdN v ONIHSN1Y GION310S 3H0SS3Nd N3Llli3ud SENEC 1 111 Le ol 3no e Wa sAS OY 43 M S ia oos 8 3OZSd9M AJYDhI38 3unss3ud ul AMIN3 GIONTIOS Gs 38019 anwa C 3unss3ud 13738 G3 LAN p 3unss3ud 419905 9 15 SINJNOdNWOO 150 SINJ3NOdNWOO AdN v 01 1 N3L3AMO 3lv3i3d 9 ONISNOH 3NVHBW3M IYNSSIYd 1933Y BYNSSIYd AIddNS 9 INWA YOLOSTION 1 OZ Z 38VIShrav 6 dWnd 3YNSS3 d 5 TI39 ALALINONOD AdN 9 1 AMIN3 GION310S AdN Nd9 01 1 YBIBNMOTS 1933Y BYNSSIYd 0317131509 9 dN 1 31033N 3ATVA 3M8 918
4. ONISNOH AdN v ONIHSM13 OLNY GION310S BYNSSIYd YANIYA 9 3no e Wa sAS OY Page 44 Silt Density Index SDI Suspended solids insoluble precipitants and colloidal materials in feed water are one of the biggest problems in reverse osmosis systems Even though most systems have some pretreatment including prefilters fine particles are responsible for fouling of reverse osmosis membranes In order to have some measure of the degree of this fouling problem Silt Density Index SDI is used A SDI of less than 3 is considered acceptable for the reverse osmosis systems This means that SDI values of less than five should foul the membranes at a very low rate Membrane Fouling Control Membrane fouling is the main cause of permeate decline and loss of product quality in reverse osmosis RO Systems Sources of fouling can be divided into four principal categories scale silt particulates silica bacterial bio fouling growth of bacteria and organic fouling oil grease Control over fouling involves pre treatment of the feed water to minimize fouling Fouling by particulates silt bacteria silica and organics generally affects the first modules the most Scaling is worse with more concentrated feed solutions therefore the last modules are most affected Silt Density Index Silt is composed of suspended particulates of all types that accumulate on the RO membrane surfac
5. Troubleshooting Symptom Possible Causes Remedies Low operating pressure Clogged prefilter cartridge Replace prefilter cartridge Insufficient feed water flow pressure Increase the feed pressure Open the feed water valve Check for restrictions and proper pipe sizes High flow rates Close the concentrate valve Check the permeate and concentrate flow rates Adjust if necessary Excessive permeate flow may indicate a damaged O ring Dirty or fouled membrane elements Flush and clean the membrane elements Solenoid valve not opening Clean or replace the solenoid valve Insufficient electrical power Check the fuses or circuit breakers measure the voltage Pump not operating correctly See pump instructions High TDS reading Incoming water pressure low Increase water pressure to prefilter Prefilter may need replacing Water temperature high Consult water temperature tables Lower incoming water temperature High recycle Adjust recycle flow meter TDS probe not calibrated Calibrate probe Recovery too high with low concentrate flow Lower the recovery by increasing concentrate flow Pinched or damaged O ring on membrane Replace O ring and check O ring sealing surfaces Damaged membrane Clean or replace membrane Check chlorine pre treatment Change in incoming water quality Open the concentrate valv
6. 35 1055 secs ace navies 37 HighPure Deluxe RO System Layout 1 39 HighPure Deluxe RO System Layout 2 tenni antt aha dann 40 HighPure Deluxe RO System Layout 41 HighPure Deluxe RO System Layout 4 Membrane eee atenta eant asas 42 HighPure Deluxe RO System Layout 5 43 HighPure Deluxe RO System Layout 44 Silt Density Index SDI DL 45 HighPure Deluxe i Dedi eer aedi ex fee una abe 47 Controller Specification cnt rente ertet agin teer det ame ee E e emere dest 48 ULT 49 Appendix Temperature nnne 51 Appendix B Conductivity Resistivity and TDS Conversion Chart 52 Appendix Water COrroslVIty dida vec E ye des XAR HARE Fre HUN CEPR 53 Limited Watratlty oot rr pet eve bau ar ve ae v vae cd ov
7. Inlet Solenoid valve not closing or seating properly Clean or replace the valve Water must not pass through the inlet when the machine is OFF Faulty permeate check valve Verify proper air gap at drain replace the permeate check valve High operating pressure Recycle or concentrate valve closed plugged or damaged Disassemble the piping to the recycle valve and remove foreign particles Check the concentrate valve Inaccurate pressure gauge Replace or calibrate the gauge as required Restricted flow after pump outlet Check for blockage of the concentrate flow at the inlets and outlets of the membrane element housings Plugged fouled membranes Clean or replace membranes as needed Inlet valve not operating Controller board inactive Is controller turned on Are any shut down conditions active If no is the inlet LED lit If no the controller board may be bad If yes check fuses F1 and F2 Check inlet terminals for power If no replace controller board If yes check valve and valve wiring RO pump not operating Controller board inactive Is controller turned on Are any shut down conditions active If no is the inlet LED lit If no the controller board may be bad If yes check fuses F1 and F2 If bad replace fuse s If ok check RO pump terminals for power If no replace controller board If yes check the pump motor and wiring Troubleshoooting and rebuil
8. Use lubricants such as glycerin sparingly Aleak detection device must be used to detect water leaking onto the floor In addition to meeting codes laws and regulations the user should understand the care and maintenance of the HighPure RO System Please read the information found in this service manual NOTE Read all safety precautions before installing operating or servicing the HighPure RO System IMPORTANT PLEASE READ The information specifications and illustrations in this manual are based on the latest information available at the time of printing The manufacturer reserves the right to make changes at any time without notice This product should be installed by a qualified electrical and plumbing professional This unit is designed to be installed on potable water systems only This product must be installed in compliance with all local state provincial and municipal plumbing and electrical codes and regulations Permits may be required at the time of installation Do not install the unit where temperatures may drop below 35 F 2 C or above 104 F 40 C Do not place the unit in direct sunlight Do not strike any of the components Misapplication of this product may result in failure to properly condition water or damage to product In some applications local municipalities treat water with Chlorine and or Chloramines High Chlorine and or Chloramine levels may damage system components Correct and co
9. 0 21 pounds 0 1 kg 4 HCI acid Slowly adjust pH down to 2 5 hydrochloric acid 0 47 gallons 1 78 liters with HCL acid Adjust pH up 95 F 35 C as 22 Baume or 36 HCL with sodium hydroxide 5 Sodium hydrosulfite as 100 powder 8 5 pounds 3 86 kg No pH adjustment is required 95 F 35 C 6 NaOH sodium hydroxide 0 83 pounds 0 38 kg Slowly adjust pH up to 11 5 as 100 powder 0 13 gallons 0 49 liters with sodium hydroxide Adjust 86 F 30 C or as 50 liquid pH down to 11 5 by adding SDS HCL acid sodium dodecylsufate 0 25 pounds eta ka 7 NaOH Slowly adjust pH up to 11 5 sodium hyydroxide 0 83 pounds 0 38 kg with sodium hydroxide Adjust 86 F 30 C as 100 powder 0 13 gallons 0 49 liters pH down to 11 5 by adding or as 50 liquid HCL acid Table 6 Hydranautics pH and Temperature Limits for Cleaning highlights the maximum pH and temperature limits for specific membranes after which irreparable membrane damage can occur A suggested minimum temperature limit is 70 F 21 C but cleaning effectiveness and the solubility of the cleaning chemical is significantly improved at higher temperatures Table 6 Hydranautics pH and Temperature Limits for Cleaning See Table 5 for target pH and temperatures Membrane 45 C 113 F 40 C 105 F 30 C 86 F ESPA 2 10 2 11 5 2 12 NOTE The above cleaning parameters denote the maximum temperature limits fo
10. Solution 4 This is a low pH cleaning solution target pH of 2 5 of 0 596 w of HCL hydrochloric acid It is useful in removing inorganic scale e g calcium carbonate calcium sulfate barium sulfate strontium sulfate and metal oxides hydroxides e g iron manganese nickel copper zinc and inorganic based colloidal material This cleaning solution is considered to be harsher than Solution 1 HCL acid a strong mineral acid is also known as muriatic acid HCL acid is available in a number of concentrations 18 0 Baume 27 9 20 0 Baume 31 4 22 0 Baume 36 0 Solution 5 This is a lower pH cleaning solution natural pH is between pH 4 and 6 No pH adjustment is required 1 096 w of Na S O sodium hydrosulfite It is useful in the removal of metal oxides and hydroxides especially iron fouling and to a lesser extent calcium sulfate barium sulfate and strontium sulfate Sodium hydrosulfite is strong reducing agent and is also known as sodium dithionite The solution will have a very strong odor so proper ventilation is required Sodium hydrosulfite is available as a powder Solution 6 This is a high pH cleaning solution target pH of 11 5 of 0 196 w of NaOH sodium hydroxide and 0 0396 w of SDS sodium dodecylsulfate It is useful in the removal of organic foulants of natural origin colloidal foulants of mixed organic inorganic origin and biological material fungi mold slimes and biofilm SDS is a detergent that is a
11. Sulfate scale is a much harder mineral scale than calcium carbonate and is harder to remove Sulfate scale may be deposited if there is a failure in the antiscalant dispersant feed system or if there is an over feed of sulfuric acid in pH adjustment Early detection of the resulting sulfate scaling is absolutely essential to prevent the damage that crystals can cause on the active membrane layers Barium and strontium sulfate scales are particularly difficult to remove as they are insoluble in almost all cleaning solutions so special care should be taken to prevent their formation Calcium Phosphate Scale This scale is particularly common in municipal waste waters and polluted water supplies which may contain high levels of phosphate This scale can generally be removed with acidic pH cleaners Metal Oxide Hydroxide Foulants Typical metal oxide and metal hydroxide foulants are iron zinc manganese copper aluminum etc They can be the result of corrosion products from unlined pipes and tanks or result from the oxidation of the soluble metal ion with air chlorine ozone potassium permanganate or they can be the result of a pretreatment filter system upset that utilizes iron or aluminum based coagulant aids Polymerized Silica Coating A silica gel coating resulting from the super saturation and polymerization of soluble silica can be very difficult to remove It should be noted that this type of silica fouling is different from silica bas
12. The controller must not be exposed to weather elements CAUTION Minimum water pressure 40 psig 2 8 Kg cm Maximum water pressure 80 psig 5 6 Kg cm Minimum water temperature 35 F 2 C Maximum water temperature 104 F 40 C Disconnect all power sources before servicing WARNING The system MUST be depressurized before removing any connections for servicing Lubricants Atno time should petroleum based lubricants oil grease or petroleum jelly be used when lubricating interconnector O rings end adapter O rings or the membrane element brine seal An acceptable lubricant is glycerin e Use a mixture of 50 glycerin in water to lubricate O rings and brine seals NOTE Permeate flow for individual membrane elements may vary or 15 All membrane elements are supplied with a brine seal interconnector and O rings Elements are enclosed in a sealed polyethylene bag containing less than 1 sodium meta bisulfite solution and 10 propylene glycol in a cardboard box Page 8 Safety Cautions amp Warnings Permeate Valve Operation Install a permeate check valve between the storage tank and permeate line from the RO system The membrane element shall not at any time be exposed to permeate back pressure where permeate static pressure exceeds concentrate static pressure There shall be no permeate back pressure at shutdown At no time during operation of a membrane element system should the permeate valve s be clos
13. ozone KMnO Hydrolysis damage All stages Normal to decreased Decreased Increased out of range pH Abrasion damage 1 stage most severe Normal to decreased Decreased Increased carbon fines etc O ring leaks Random typically at Normal to decreased Normal to decreased Increased at interconnectors or adapters feed adapter Glue line leaks 1 stage most severe Normal to decreased Normal to decreased Increased due to permeate backpressure in service or standby Glue line leaks Tail element of a stage Increased Increased Increased due to closed permeate valve based on prior fouling based on prior fouling while cleaning or flushing and high delta P and high delta P Page 26 Maintenance Types of Foulants Calcium Carbonate Scale Calcium carbonate is a mineral scale and may be deposited from almost any feedwater if there is a failure in the antiscalant dispersant addition system or in the acid injection pH control system that results in a high feedwater pH An early detection of the resulting calcium carbonate scaling is absolutely essential to prevent the damage that crystals can cause on the active membrane layers Calcium carbonate scale that has been detected early can be removed by lowering the feedwater pH to between 3 0 and 5 0 for one or two hours Longer resident accumulations of calcium carbonate scale can be removed by a low pH cleaning with a citric acid solution Calcium Barium amp Strontium Sulfate Scale
14. 000 000 7 0 0 0714 0 00415 0 167 6 000 000 6 0 0 0833 0 00485 0 200 5 000 000 5 0 0 100 0 00585 0 250 4 000 000 4 0 0 125 0 00731 0 333 3 000 000 3 0 0 167 0 00971 0 500 2 000 000 2 0 0 250 0 0146 1 00 1 000 000 1 0 0 500 0 0292 1 11 900 000 0 9 0 556 0 0322 1 25 800 000 0 8 0 625 0 0368 1 43 700 000 0 7 0 714 0 0415 1 67 600 000 0 6 0 833 0 0485 2 00 500 000 0 5 1 00 0 0585 2 50 400 000 0 4 1 25 0 0731 3 33 300 000 0 3 1 67 0 0971 5 00 200 000 0 2 2 50 0 146 10 0 100 000 0 1 5 00 0 292 11 1 90 000 0 09 5 58 0 322 12 5 80 000 0 08 6 25 0 368 14 3 70 000 0 07 7 14 0 415 16 7 60 000 0 06 8 33 0 485 20 0 50 000 0 05 10 0 0 585 25 0 40 000 0 04 12 5 0 731 33 3 30 000 0 03 16 7 0 971 50 0 20 000 0 02 25 0 1 46 100 0 10 000 0 01 50 0 2 92 111 9 000 0 009 55 6 3 22 125 8 000 0 008 62 5 3 68 143 7 000 0 007 71 4 4 15 167 6 000 0 006 83 3 4 85 200 5 000 0 005 100 5 85 250 4 000 0 004 125 7 31 333 3 000 0 003 167 9 71 500 2 000 0 002 250 14 6 1 000 1 000 0 001 500 29 2 1 110 900 0 0009 556 32 2 1 250 800 0 0008 625 36 8 1 430 700 0 0007 714 41 5 1 670 600 0 0006 833 48 5 2 000 500 0 0005 1 000 58 5 2 500 400 0 0004 1 250 73 1 3 330 300 0 0003 1 670 97 1 5 000 200 0 0002 2 500 146 10 000 100 0 0001 5 000 292 All non charged non ionic materials will not be registered by conductivity TDS instruments alcohols bacteria viruses colloidal material sugars oils etc Page 52 Appendix C Water Corrosivity LSI Langlier Satura
15. 3 25 2 0 7 5 3 77 8 75 5 67 15 7 56 16 25 9 44 17 5 11 33 0 74 0 45 1 7 0 85 2 0 1 28 3 41 1 71 3 69 2 14 3 97 2 57 Dynamic Feed Water Inlet Pressure Min psi Kg cm 40 psi 2 8 Feed Water Inlet Pressure Max psi Kg cm 80 psi 5 6 Standard Feed Water Temperature F C 35 104 2 40 Membranes Membrane Size nominal inches 4x40 Nominal Salt Rejection Vessel Material Inlet inches mm Permeate Outlet inches mm Concentrate Outlet inches mm Centrifugal Pump Boost Pressure psi Kg cm Pump Material Horsepower KW Voltage 60 Hz Single Phase Amps Height inches cm Width inches cm Depth inches cm Weight of System Without Water Ibs Kg Filter Housing Quantity amp Size inches Versaflex Replacement Filter Softened Water Silt Density Index 01 Total Dissolve Solids TDS Silica ppm Turbidity NTU pH amp Manganese ppm Chlorine Chloramine Max mg l Chloride ppm 95 99 Stainless Steel Piping 3 4 19 1 25 1 2 13 3 4 19 1 2 13 3 4 19 Pump MGPS10E MGPS20G 80 220 5 6 15 5 Stainless Steel 1 0 75 2 1 49 230 11 13 System Dimensions 66 168 20081 155 71 180 82 255 116 Filter Dimensions 1 2 9 x 20 280 127 320 145 1 4 5 x 20 VF5 20BMXXXDX Standard Feed Water Quality Requirements 1 grain gallon SDI 3 TDS 2000 510 lt 20 Turbidity lt 1 0 pH 3 to 10 lt 0 01
16. Pump Rebuild Kit 1 HP CM490004 Pump Rebuild Kit 2 HP CM490012 Versaflex VF5 20BMXXXDX 25 Case CM490013 Versaflex VF5 20FGXXXDX 12 Case CM490005 Membrane RO 2500 gpd 4 dia x 40 length CM490008 Pump Booster Stainless Steel 1 HP 10 gpm CM490010 Pump Booster Stainless Steel 2 HP 20 gpm CM400085 Valve Solenoid 230 Vac 1 2 Connection CM400086 Valve Solenoid 230 Vac 3 4 Connection CM400087 Valve Solenoid 230 Vac 1 Connection CM200001 Deluxe RO Manual M490014 SW 2 Wrench 20 M490015 SW 4 Wrench 20 BB Page 50 Appendix A Temperature Correction Temperature of the feed water across the element must be taken into account before comparing or evaluating the performance of a membrane element or a reverse osmosis system Temperature Correction Factor The water temperature is one of the key factors in the performance of the reverse osmosis membrane element The higher the temperature the more the product flow and the lower the temperature the lower the flow All reverse osmosis membrane elements and systems are rated at 77 F 25 C Operating the system at pressures and temperatures different than the ones designed will change the permeate flow If system is running at a different temperature than the standard a product flow calculation should be made A membrane s productivity changes substantially with temperature The expected permeate at 77 F is 5 gpm If your water temperature is different than 77 F d
17. UaLINMOT 8 1 3NnSS3Ud 5 TI39 ALALINONOD AdN 7 AYINI GION310S 14 2 1 S S 1933Y BYNSS3Yd 031711509 0 1 31033N 3AWA O7X v ONISNOH AdN v ONIHS Yl4 OLNV GION310S 33055339 YILWIIYd 3NVSEW3N 05 3no e 5 OY Page 41 9NIHSIT14 GION310S won tm oe a Be Im 5 5317131509 BYNSS3Yd H3ri3ud v 31033N 3AWA LSI SINJ3NOdWOO 1S SIN3NOdNOO LIN 01 1 iunc E 76 13170 3NVNENW3N Ndo LO S BUNSS3Yd 193739 3unssaNd Alddns INWA YOLOITION 9 ONIHSMJ QION310S dHz zHo9 hozz 1302589 Ou SS 0t oz aa 5 Wd9 121 soueJquio N p 3no e OY 19 1 02 2 W3L3AMO 3 8visnrav 6 3YNSS3Yd 5 ALIALONGNOD 14 9 1 AYINI GION310S Nd9 01 1 YBI3NMOTS 1933Y BYNSSIYd 0317131509 31033N 9 38 918 0 1 ONISNOH BYNSSIYd N3L10338d
18. VUA ARIA IA Concentrate Control Valve Prefilter Inlet Concentrate Prefilter Outlet Membrane Feed Potential CIP Port Inlet Solenoid Pump Permeate Prefilter Housing Concentrate Rubber Leveling Feet Figure 3 Machine Feature Identification Front Page 12 Installation and Initial Start up TDS Sensor Wires TDS Sensor Pressure Switch Concentrate Flush Solenoid Tank Level Switch Inlet Solenoid Permeate Tube Figure 4 Machine Feature Identification Back Page 13 Installation and Initial Start up 1 Locate machine with access to power water supply piping drain and space to service unit Use the leveling feet to level the system Be certain to allow room for maintenance and 46 inches of clearance above the membrane housing for changing of the of the RO membranes If 46 inches of clearance is not available the membranes are changed by removing the membrane housings Be certain to leave room for a person to work behind the unit 2 Remove pipe assemblies at the top of the housings Loosen the end clamps and remove the end caps using a slide hammer or a tee 3 Load membranes into pressure vessels according to the concentrate flow direction Note the position of the brine seal placement on the membrane Figure 5 Each housing has an arrow indicating the direction of flow for that housing Figure 5 The brine seal must be at the water inlet of the housing CAUTION When inserting the membranes with
19. controller Pressing the Power key DOES NOT remove these voltages The power must be disconnected from the power source When connecting or disconnecting any wiring to the unit be sure the power is turned off at disconnect or breaker Lock out Tag out rules may apply Note that if fuse F1 or F2 is blown none of the outputs will operate If fuse F3 is blown the Controller will be inoperative Refer to Figure 2 for the location of components This troubleshooting guide can assist in identifying common operating problems that may be experienced with the machine The operator can easily correct many of these problems For those that persist or are not understood contact the Pentair Technical Support Center Have the following Information available when calling the Customer Support Center 1 Installation and start up checklist 2 Detailed description of problem 3 Operation Log Symptom Possible Causes Remedies Low permeate flow rate Low membrane pressure See possible causes for low operating pressure Dirty or fouled membrane elements Flush and clean the membrane elements Operating on cold water see temperature correction table Install a hot cold feed water tempering valve if more permeate flow is needed Operate at higher feed water temperature up to 72 TT F 22 25 C Membrane elements installed backward or damaged concentrate seal Install membrane elements in the direction of fluid fl
20. of the RO operation If the cleaning frequency is every one to three months you may want to focus on improving the operation of your existing equipment but further capital expenditure may be harder to justify It is important to clean the membranes when they are only lightly fouled not heavily fouled Heavy fouling can impair the effectiveness of the cleaning chemical by impeding the penetration of the chemical deep into the foulant and in the flushing of the foulant out of the elements If normalized membrane performance drops 30 to 50 it may be impossible to fully restore the performance back to baseline conditions Page 25 Maintenance When inorganic coagulants are used in the pretreatment process there can often be incomplete reaction of the inorganic salt and thus insufficient formation of a filterable floc The user should ensure that excessive amounts of inorganic coagulant are not fed to the RO system Excessive amounts of coagulant can be measured by using SDI filter equipment In the case of iron the iron on the SDI filter pad should typically be ug pad and never above 5 ug pad In addition to the use of turbidity and SDI particle counters are also very effective to accurately measure the suitability of the feedwater for NF RO elements The measure of particles greater than 2 microns in size should be 100 particles per milliliter What you clean for can vary site by site depending on the foulant Complicating the situation fr
21. the flush water to drain is within 10 2096 of the feed water conductivity A pH meter can also be used to compare the flush water to drain to the feed pH 7 the stages of a train are cleaned and the chemicals flushed out the RO can be restarted and placed into a Service Rinse The RO permeate should be diverted to drain until it meets the quality requirements of the process e g conductivity pH etc It is not unusual for it to take from a few hours to a few days for the RO permeate quality to stabilize especially after high pH cleanings Page 33 Maintenance Membrane Shutdown and Preservative Flushing Guidelines Biocides for Disinfection and Storage of Supplied ESPA1 Hydranautics Membrane Elements One should confirm which brand and type of membrane elements are actually in the system Since elements may be composed of composite polyamide membrane types it is imperative to be certain of the type to be disinfected If any uncertainty exists regarding the type of elements in use please contact the membrane supplier for confirmation of compatibility of specific procedurers with membrane types If the feed water contains any hydrogen sulfide or dissolved iron or manganese oxidating disinfectants such as hydrogen peroxide should not be used WARNING The biocides listed in this procedure are toxic in some degree to humans Allow ample time for system flushing from 2 to 24 hours to remove the presence of the biocides before start
22. the front of this manual and the Operation Log Sheet in the back Verify the correct operation of the pretreatment lockout Cycle all components and check light on operator panel Verify the leak detection device works E mail or send a copy of the Installation and Start up Checklist to Technical Support Settings not recommended Not within range of flowmeter Recovery 33 50 60 75 Number pus of 4 x 40 jus Concentrate Recycle Concentrate Recycle Concentrate Recycle Concentrate Recycle Membrane y flow gpm 1 Housing 9 4 2 5 6 9 1 25 8 2 0 8 8 6 0 4 9 2 Housings 9 4 5 4 4 2 5 6 9 1 6 7 8 0 8 8 6 3 Housings 8 3 S 0 8 3 75 4 6 2 5 5 8 1 25 7 05 4 Housings 19 10 9 5 14 05 3 3 15 7 17 17 3 5 Housings 17 6 6 3 11 3 4 2 13 4 2 1 15 5 6 Housings 16 6 7 5 9 1 5 11 6 2 5 14 1 All flows in Flows based on 1800 gpd element Page 17 Membrane Production Capabilities Each membrane is capable of producing clean permeate water at a certain flow gallons per day The HighPure RO systems use multiple membranes to increase the flow of permeate clean water The information below shows the production guidelines of one 4 x 40 membrane Recommended Guidelines on RO Machine Production per 4 x 40 Membrane Inlet TDS Flow gpd Recommended Guidelines per 4x40 membrane lt 50 2040 50 200 1950 2100 200 500 1900 2050 500 700 1850
23. 2000 1900 Flow GPD 1850 1800 1750 1700 1650 Inlet TDS lt 50 50 200 200 500 500 700 700 NOTE SDI lt 1 well water no colloids present 77 F 25 C water Operating at higher flux rates can limit and affect membrane life and increase frequency of cleanings Actual water conditions and levels of contaminants will vary performance No saturation constituents in the concentrate Check standard feed water quality requirements for additional information For further information contact Technical and Application Support at Tech SupportCIPs Pentair com Page 18 10 11 Daily Start up and Operation Push the START button The pump motor will start after five seconds Observe the pressure gauges and flow meters Consult the nstallation and Start up Checklist for operating pressures and flow meter settings Use the concentrate valve to adjust system pressure Deluxe models have an adjustable flow meter for recycle that can be used to further increase decrease recovery percentage and change membrane cross flow Once the system has stabilized record data in the Daily Log Sheet It may take several days for the permeate flow rate to stabilize After starting up the system the steady green RUN LED will light During the 5 second delay before the pump starts the digital display will show If the concentrate and recycle flows are set correctly the system wi
24. D SOLIDS ENJUAGUE TANQUE LLENO Power On Off TOTO FILTROS EN REGENE Pre Treat Lock Out CONDITION CONDICION DISPLAY PANTALLA STATUS LED ESTADO DEL LED RO OFF 01 APAGADA OFF Display for TDS Reading RO OPERATING 0 1 OPERANDO GOES EE I RO START DELAY TIEMPO DE RETARDO LOW PRESSURE BAJA PRESION LP FLASHING RED ROJO INTERMITENTE PRE TREAT LOCK OUT FILTROS EN REGENERACION STEADY GREEN VERDE ENCENDIDO FULL TANK TANQUE LLENO FUL STEADY GREEN VERDE ENCENDIDO FLUSHING ENJUAGUE RS STEADY AMBER AMBAR ENCENDIDO Pentair Water Commercial amp Industrial Purity Solutions Figure 1 RO System Controller LED Layout Page 10 44 PFLED Pressure Switch du Pretreat Switch E po 16 TFLED Tank Full Switch TDS Input of Installation and Initial Start up Connected at Installation Site TDS Meter Adjustment 5 a M c o 5 5 1 c o o 2 5 gt 2 5 O52 TE cgo 485 Enable Flush Inlet 12 13 Relay Relay 1 __ 20 20 20 20 2A 6644 Figure 2 Deluxe RO Circuit Board Page 11 Installation and Initial Start up Pipe Assembly Recycle Flow Meter Concentrate and Permeate Pipe Connections Recycle Control Valve Permeate Flow Meter Concentrate Flow Meter
25. HighPure Deluxe Reverse Osmosis System Installation Operation and Maintenance Manual IMPORTANT Fill in Installation amp Start Up Checklist and the Operation Log Sheet for Future Reference Commercial Industrial Reverse Osmosis System Deluxe 1 800 to 12 240 GPD Applications Ingredient water e Laboratory and analytical testing e High purity rinse water for plating electronics and automotive irrigation lon exchange pretreatment Horticulture floriculture green houses Whole building water loop Misting and humidification systems Boiler feed water Cooling tower make up water Vapor Steam generators e Community water vending including RV and Manufacturing process water manufactured home parks and marinas Features Nominal salt rejection 95 99 Energy efficient low pressure membranes High efficiency stainless steel Berkeley multistage pump Genuine PENTEK prefilter housing with 20 Versaflex 5 micron Pentair Industrial technology prefilter Stainless steel membrane housing control panel hardware and coated membrane brackets Ashcroft prefilter postfilter primary and final pressure gauges Blue White permeate concentrate and recycle flow meters with integrated recirculation control Industrial grade solenoid valves No part of this document may be copied or reproduced in any form or by any means without the prior written permission of Pentair Water Commercial amp Industrial Purity Solutions C
26. IOS 3unss3ud YANIYA eueJquie N 3no e 5 OY Page 39 2 1 17170 ___ 6 31VSIN39NO9 1dN 2 1 ONIHSM13 GION310S G3 memes oe me eom eo a Ded 1S1 SINJ3NOdNWOO 9 2 1 31033N IATA 150 SINJ3NOdNWOO AdN 2 1 Wd9 6 5 ILVINYId ONISNOH 3NYVHBW3N 3 nsS3Nd 49 5 LN 2 1 3AWA 3ansS3ud 103r34 AdN Nd 01 1 TavisNrav 3YNSS3 d 9 ALALINONOD dN 9 9 2 AMIN3 QION310S AdN 2 1 G S U313AMO13 1933Y BYNSSIYd 1 4 AdN 2 1 31033N 02X ONISNOH 2 1 9NIHSYd OLNV GIONTTOS BYNSSIYd OY 3no e OY exnjog Page 40 9NIHSm GION3I0S e JOLSdON A3134438 3YNSS3Yd H9IH AMIN3 GIONSTOS 38019 5384 1933Y 2 1 323H2 3355339 AIddNS 3104038 IYNSSIYA 31711509 9 2 1 31033N 3ATWA 34nsS3ud NiLli3ud LSI SIN3NOdWOO 1SM SIN3NOdANOO 2 1 S G N313AMO13 alV3WiH3d 9 ONISNOH 3NVHBW3M IYNSSIYA 1933Y BYNSSIYd 2 1 3AWA 323H2 YOLOITION Nd9 01 1
27. IPS Pentair believes the information and data contained herin to be accurate and useful The information and data are offered in good faith but without guarantee as conditions and methods of use of our products are beyond our control Pentair Water CIPS makes no warranties with respect to this documentation Information in this document is subject to change without notice Pentair Water CIPS shall not be held liable for technical or editorial errors or omissions that may appear in this document nor for incidental or consequential damages resulting from the furnishing performance or use of this document Pentair assumes no liability for results obtained or damages incurred through the application of the presented information and data It is the user s responsibility to determine the appropriateness of Pentairs products for the user s specific end users Pentair Water Commercial amp Industrial Purity Solutions CIPS Pentair Water CIPS is a global provider of technologies and solutions for a variety of commercial and industrial applications We offer world class products and systems that combine quality global branding application knowledge and Technical Support to meet our customers needs anywhere in the world Pentair Water Commercial amp Industrial Purity Solutions Page 3 Table of Contents Commercial Industrial Reverse OSMOSIS System 00 3 Installation an
28. Replace the back panel Make appropriate electrical connections with fused disconnect or Ground Fault Protection Use 20 amp service 240 VAC single phase for the 1 hp 1 3 membrane systems and for the 2 hp 4 6 membrane systems Turn on the electrical power to the RO system and go through start up procedure 11 Check all connections for leaks before leaving system Page 16 Start up Read completely before starting 1 Fully open concentrate control valve by turning counterclockwise to the left Never start the system with the concentrate valve closed 2 To purge air from system Push power button to START system wait 4 seconds and push button to STOP This will prevent the pump from turning on and prevent any damage from high velocity air and water in the system When the POWER button is pushed the system will open the inlet solenoid allowing water to flow into system 3 Allow air to purge from system Repeat pushing start button and then pushing it again after 4 seconds until air is purged from system and water flows through the concentrate flow meter 4 Press power and release After a 5 second delay the pump will start and the green RUN light will come on If prefilter water pressure is less than 7 psi the pump will not operate 5 Slowly close the concentrate valve The concentrate flow should be set at a level slightly below maximum Flush for 20 minutes 6 After the initial 20 minute flush adjust the concentrate valve The memb
29. Water ___________ 15 Pre treatment is installed flushed and working Prefilter Cartridge Model No Installation Feedback Notes Starting Prefilter Inlet Pressure Starting Prefilter Outlet Pressure A Pressure at start up Flow Meter Readings Concentrate Design Start up Recycle Design Start up Permeate Design Start up Permeate Back Pressure PSI Expected Recovery Design Expected Recovery Start up Installation Address Signature of Installer This page must be filled out and a copy sent to Pentair Water Technical Support 220 Park Drive Chardon OH 44024 Email Tech SupportCIPS pentair com Page 6 Important Information IMPORTANT READ THIS FIRST Read this service manual thoroughly before first use e Check the HighPure RO System periodically to ensure proper operation i e flushing flow rate pressure drop etc Do not allow the HighPure RO System to be exposed to freezing temperatures Freezing will damage the system Ensure the membrane does not dry out Opened membranes should be preserved with a 0 1 sodium bisulfite solution e Keep this service manual near the HighPure RO System for future reference HighPure RO System is intended to treat only potable quality water It is not intended as the primary treatment of water from a source that is contaminated such as from radon pesticides insecticides sewage wastewater seawater or brackish water
30. ain all pretreatment equipment has been rinsed purged of carbon fines and other materials Pretreatment equipment that cycles and may allow untreated water to pass must be wired by normally open dry contacts to the pre treatment terminals on the control board Failure to do so will cause equipment failure and possibly void any warranty Connect concentrate drain piping with appropriate air gap according to national state and local codes Drain pipe must be suitable to handle concentrate flush flows Concentrate flush is approximately 12 gpm for 1 3 membrane systems and approximately 25 for 4 6 membrane systems for 5 minutes at shut down The drain piping and reservoir if applicable should be sized appropriately Connect temporary permeate piping directed to drain Make certain to have an air gap between the piping and the drain The initial flushing of the permeate system should go to drain to remove any residual disinfectant from the RO membranes WARNING To reduce the chance of contamination of the RO system a separate disposable hose should be used for permeate flushing This hose must have an air gap at the drain and must be secured Page 15 Installation and Initial Start up Preservative Flushing To protect elements from biological growth and to help maintain performance over time Hydranautics composite type ESPA1 membranes are stored in a combination of 1 sodium bisulfite and 10 propylene glycol solution It is the
31. alents One Grain per U S Gallon as calcium carbonate is equal to 17 1 ppm as calcium carbonate mg l A method of reporting the actual weight milligrams of an ion or substance a given volume of water liter For dilute solutions mg l and ppm are equivalent For example 1 000 mg l ppm sodium chloride solution would result in a residue of 1 000 mg of NaCl after evaporation of one liter of water RO chemists use mg l frequently in the calculation of TDS Permeate Water It is the water that passes through a semipermeable reverse osmosis membrane pH The pH of the feed water measures the acidity or basicity A pH of 7 0 is considered neutral A pH between 0 0 and 7 0 is acidic A pH between 7 0 and 14 0 is basic To the analytical chemist pH is a method of expressing hydrogen ion concentration in terms of the power of 10 with the pH value being the negative logarithm of the hydrogen ion concentration To the water chemist pH is important in defining the alkalinity equilibrium levels of carbon dioxide bicarbonate carbonate and hydroxide ions The concentrate pH is typically higher than the feed due to the higher concentration of bicarbonate carbonate ions relative to the concentration of carbon dioxide The user can adjust the pH of the feed water using hydrochloric or sulfuric acid Lowering the feed pH with acid results in a lower LSI Langlier Saturation Index value which reduces the scaling potential for calcium carbonat
32. d Start up CHECKS Fete to etd On eed Important PEE 7 ST ARe UeE AUT 8 Installation and Initial nnns nnn nennen sensn sn enn nnns 10 Sta EE sm 17 Membrane Production Capabilities des e e ba ex eR d e P ac 18 Daily Start p and OperatlOn Ete SER RARE 19 Troubleshooting A 20 tate O 23 23 Maintenance and 23 Replacing Inlet Cartridge FE Ilters iie ci 23 TOS T 23 Rebuilding 23 Cleaning the Membranes iii 24 RO Membrane Fouling and Cleaning 24 TYPOS 27 Selection and Use of Cleaning Chemicals ctc 28 RO Membrane Element Cleaning and Flushing Procedures 33 General Storage Procedures for Composite Polyamide ESPA1 RO Membrane Elements
33. dant Pentair recommends that the feed to the RO system is equipped with an ORP Oxidation Reduction Potential meter The feedwater can then be continuously monitored for the presence of oxidant The ORP meter reading should always be below 180 mV If it exceeds 180 mV the plant operator should receive a warning that a dangerous level of oxidant is getting to the membrane and should take action such as changing the carbon tank or adding or increasing the dose of sodium bisulfite SBS to reduce the oxidant concentration If the ORP value reaches 200 mV the plant should be shut down until the oxidant concentration can be reduced to a safe value ORP lt 180 mV Please contact your system provider for various methods of removing Total or Free Chlorine prior to the membrane system NOTE The oxidative effects of Chlorine are strongly catalyzed in the presence of metals such as chromium iron and manganese If transition metals are present it is recommended that there be NO Chlorine in the feed water Permeate Water Production During 5 Minute Flush Some permeate water will be produced during the systems 5 minute flush Size the storage tank appropriately or provide for a permeate overflow on the tank to prevent damage to the system NOTE Maximum permeate back pressure must not exceed 60 psi Page 9 Installation and Initial Start up Run REVERSE OSMOSIS SYSTEM Low Pressure LOW PRESSUR Flush ENCENDIDO BAJA PRESION Full Tank OTAL DISSOLVE
34. ding pump See Berkeley Pump Owners manual provided with system or go to http www berkeleypumps com pdf BE327 PDF For customer support contact Pentair Water Commerical and Industrial Purity Solutions Technical and Application Support Phone 877 372 8265 E mail Tech SupportCIPS Pentair com Page 22 Maintenance General WARNING To prevent electrical hazards disconnect power supply to the RO system before servicing the unit WARNING Water supply should come from a reliable potable source that will comply with feed water requirements Failure to comply will result in improper operation damage to the equipment and will void the warranty CAUTION Proper pre treatment must be maintained Regular carbon changes and proper maintenance of pre treatment salts and chemicals is required Do not install a chemical feed in the permeate line as this could damage the membranes when unit shuts down To add a chemical to the permeate water feed the chemical directly into the permeate storage tank If chemical feed is connected directly to the feed water then a flow sensor must be used Maintenance and Servicing The most trouble free systems are those that are not turned off and run continuously A well kept Operating Log must be maintained and acted upon as soon as needed to avoid complications Replacing Inlet Cartridge Filters The pressure drop across the inlet cartridge filter will increase with time as the volume of filter
35. e Feed and concentrate reject pH can also effect the solubility and fouling potential of silica aluminum organics and oil Variations in feed pH can also affect the rejection of ions For example fluoride boron and silica rejection are lower when the pH becomes more acidic ppm parts per million A method for reporting the concentration of an ion or substance in a water The following conversions apply for dilute waters with a specific gravity of 1 0 One ppm is equal to one mg L One Grain per U S Gallon is equal to 17 1 ppm One Pound per 1 000 U S Gallons is equal to 120 ppm A one per cent solution is equal to 10 000 ppm One ppm is equal to 1 000 ppb ppm as A method of reporting the concentration or equivalent weight of an ion or substance a given volume of water as ppm as calcium carbonate Reporting the concentration of ions as ppm as calcium carbonate is popular by ion exchange chemists for the calculation of ionic loading of cation or anion resins It is also popular in determining whether a water analysis is balanced where the sum of the cations equals the sum of the anions when the concentration of the ions are reported as calcium carbonate equivalents Water chemists use the concept of equivalency when balancing cation and anion electroneutrality levels since ions combine in nature based on their valence state and available electrons not on their actual weight Calcium carbonate was arbitrari
36. e Sources of silt are organic colloids iron corrosion products precipitated iron hydroxide algae and fine particulates Silt Density Index testing is a widely accepted method for estimating the rate at which colloidal and particle fouling will occur in reverse osmosis water purification systems SDI is a measurement of the fouling potential of suspended solids Turbidity is a measurement of the amount of suspended solids They are not the same and their is no direct correlation between the two In practice the membranes show very little fouling when the feed water has a turbidity of lt 1NTU The SDI test measures the time required to filter a fixed volume of water through a standard 0 45 pore size microfiltration membrane with a constant given pressure of 30 psi 2 1 Kg cm The SDI value is the difference between the test time in seconds of the first test and a second measurement after normally 15 minutes of filtering SDI SD15 Water temperature should be kept close to normal and within 1F Feed supply gt 2 bar Pressure Gauge 30 psi 2 07 bar Pressure Regulator Millipore filter holder os Graduated Cylinder 500 ml Page 45 Silt Density Index SDI The feed water has to be supplied with a pressure of 30 psi 2 1 Kg cm which will be regulated with the pressure regulator and reading off the value on the pressure gauge Measure the amount of time in seconds required for 500 ml of feed water to flow throu
37. e and flush Test the feed water for pH hardness TDS silica and iron content A feed water analysis should be performed Incorrect TDS reading Low concentrate flow rate normal or higher than normal pressure Sensor not wired correctly Check wiring and correct Sensor not installed correctly Check installation and reinstall Not calibrated correctly Controller board bad Recalibrate Remove green and white wires from sensor to board Is TDS reading 0 If no replace controller board If yes see sensor bad and reconnect wires Sensor bad Concentrate valve plugged Remove sensor from piping and dry off Display should show 0 If no replace sensor If yes short the pins of the sensor Display should show A A A If no replace board Remove the concentrate valve and or diassemble the piping Clean the valve Concentrate out line restricted Examine the concentrate line for obstructions or kinks repair or replace the tubing Flow meter inaccurate Check the flow rate manually with a stopwatch and calibrated container Dirty concentrate valve Disassemble and clean the piping to the valve Improper pump operation Extremely fouled membranes Rebuild or replace Clean or replace Recycle flow too high Adjust down Page 21 Troubleshooting Symptom Possible Causes Remedies Water flowing when machine is turned OFF
38. e appropriate plumbing materials after system to prevent unnecessary corrosion and contamination of permeate water The hose connecting to the storage tank must remain clean to prevent possible contamination of the water storage Connect permeate piping to storage tank 8 Unwrap and install Versaflex prefilter into the blue housing on the inlet side of the system Make certain O ring is in the groove in the sump below the threads and hand tighten housing into cap Only use supplied housing wrench to loosen housing never to tighten 9 Open water supply to system and confirm prefilter and postfilter pressures Typical feed pressure is 40 80 psi Check for leaks The pressure readings should be the same because the inlet valve is closed IF the feed pressure is higher than 80 psi install a pressure reducing valve before the system to maintain the proper feed pressure 10 The power cord is located on the lower left of the control panel when viewed from the back If using the installed power cord replace the back panel of the control box If a longer cord needs to be installed connect the new power cord to the board first per the circuit diagram Figure 2 AC power for the unit is connected to terminal strip P1 Connect the ground wire of the AC power to P1 GND For AC power with a neutral and hot wire the hot wire connects to P2 L1 and the neutral wire connects to P3 L2 For AC power with 2 hot wires either wire can connect to L1 and L2
39. e can be used if required The soak time can be from 1 to 8 hours depending on the manufacturer s recommendations Caution should be used to maintain the proper temperature and pH Also note that this does increase the chemical exposure time of the membrane 5 Upon completion of the chemical cleaning steps a low pressure Cleaning Rinse with clean water RO permeate or DI quality and free of hardness transition metals and chlorine is required to remove all traces of chemical from the Cleaning Skid and the RO Skid Drain and flush the cleaning tank then completely refill the Cleaning Tank with clean water for the Cleaning Rinse Rinse the pressure tubes by pumping all of the rinse water from the Cleaning Tank through the pressure tubes to drain A second cleaning can be started at this point if required 6 Once the RO system is fully rinsed of cleaning chemical with clean water from the Cleaning Tank a Final Low Pressure Clean up Flush can be performed using pretreated feed water The permeate line should remain open to drain Feed pressure should be less than 60 psi 4 Kg cm This final flush continues until the flush water flows clean and is free of any foam or residues of cleaning agents This usually takes 15 to 60 minutes The operator can sample the flush water going to the drain for detergent removal and lack of foaming by using a clear flask and shaking it A conductivity meter can be used to test for removal of cleaning chemicals such that
40. e e da 54 Operation Slieet uber abu cera ane 55 Page 4 Table of Contents Tables Table 1 Concentrate vs Recycled at Standard Recoveries 17 Table 2 Operation est ete bene a a ERST EXER pa daa eR VY ERRARE NEL ERAS 25 Table 3 RO Troubleshooting Matrix c c cccccccseeeesccceeeeeesnceeeeeseucceteeeeeccceaesusuaceeaeensnaceteeeneneedeeeneeneeeeeenenaeateeteanes 26 Table 4 Hydranautics Recommended Chemical Cleaning 29 Table 5 Hydranautics Recipes for Cleaning Solutions sssseseene eene 31 Table 6 Hydranautics pH and Temperature Limits for Cleaning 31 Table 7 Cleaning and Flushing Flow Rates per RO Pressure Tube 31 Table 8 Cleaning Solution Volume Requirement per RO 32 Figures Figure 1 RO System Controller LED einn nane tna aes a daa d esa 10 Figure 2 Deluxe RO Circuit Board ren caa err sene e 11 Figure 3 Machine Feature Identification 12 Figure 4 Machine Feature Identification 2 kann dne dnd antena 13 Figure 5 Position of Membrarnes ec rete eet EC ux emma
41. ed Closing the permeate valve during any phase of operation causes a pressure differential across the tail end of the system and will likely result in irreparable damage to the glue lines of the tail element s This damage will cause immediate increase in TDS passage through the RO membrane NOTE The Composite Polyamide type of RO membrane elements supplied must not be exposed to chlorinated water under any circumstances Any such exposure will cause irreparable damage to the membrane Absolute care must be taken following any disinfection of piping or equipment or the preparation of cleaning or storage solutions to ensure that no trace of chlorine is present in the feedwater to the RO membrane elements If there is any doubt about the presence of chlorine perform chemical testing to make sure Neutralize any chlorine residual with a sodium bisulfite solution or activated carbon and ensure adequate mixing and contact time to accomplish complete dechlorination Dosing rate is 1 8 to 3 0 ppm sodium bisulfite per 1 0 ppm of free chlorine Presence of Total or Free Chlorine in Feed Water of Thin Film Polyamide Membrane Elements At no time should there be a Total or Free Chlorine residual in the feed water Even very low levels of chlorine chloramine in the feed stream will result in irreparable oxidation damage of the membrane Therefore operators should ensure that oxidant does not enter the RO system To ensure that membranes are not harmed by oxi
42. ed colloidal foulants which may be associated with either metal hydroxides or organic matter Silica scale can be very difficult to remove by traditional chemical cleaning methods Contact Hydranautics technical department if the traditional methods are unsuccessful Harsher cleaning chemicals like ammonium biflouride have been used successfully at some sites but are considered rather hazardous to handle and can damage equipment Colloidal Foulants Colloids are inorganic or mixed inorganic organic based particles that are suspended in water and will not settle out due to gravity Colloidal matter typically contains one or more of the following major components iron aluminum silica sulfur or organic matter Dissolved NOM Organic Foulants The sources of dissolved NOM Natural Organic Matter foulants are typically derived from the decomposition of vegetative material into surface waters or shallow wells The chemistry of organic foulants is very complex with the major organic components being either humic acid or fulvic acid Dissolved NOMs can quickly foul RO membranes by being absorbed onto the membrane surface Once absorption has occurred then a slower fouling process of gel or cake formation starts It should be noted that the mechanism of fouling with dissolved NOM should not be confused with the mechanism of fouling created by NOM organic material that is bound up with colloidal particles Microbiological Deposits Organic based deposits
43. ed water increases and the load of solids removed clogs the filter This will clearly be seen in the Operating Log The inlet cartridge filter needs to be replaced when the pressure drop across the filter doubles or exceeds 6 psi higher than the A pressure at start up whichever is lower Failure to replace the cartridge on time may cause the cartridge to fail and allow suspended solids to pass into the RO system and void the warranty During normal operation the pressure drop will continue to increase lowering the pressure at the pump inlet and lowering the system s capabilities To change the cartridge you will need to shut down the system and the feed water supply Replace cartridge clean and sanitize the housing if needed Place new clean cartridge into the sump Lubricate the O ring with glycerin and replace in the groove of sump below threads Screw sump to filter head Purge out air before start up Record in the Operating Log the cartridge replacement on the day it happened together with all the other operating data TDS Calibration The TDS calibration of the TDS monitor should rarely have to be adjusted To adjust the calibration screw shown as CAL on the circuit board inside the control box in Figure 2 measure the incoming water supply with a meter calibrated to a known standard Using a small non conducting plastic bladed screwdriver adjust the CAL screw to get the correct reading on the display WARNING Never use a metal screwdrive
44. equently is that more than one foulant can be present which explains why cleanings frequently require a low pH and high pH cleaning regiment NOTE The membrane elements shall not be exposed to feed water containing oil grease oxidizers or other foreign matter which proves to chemically or physically damage the integrity of the membrane Table 3 RO Troubleshooting Matrix Pressure Drop is defined as the Feed pressure minus the Concentrate pressure This table was created by Hydranautics a Nitto Denko Company Possible Cause Possible Location Pressure Drop Feed Pressure Salt Passage Metal Oxide Fouling 1 stage lead elements Rapid increase Rapid increase Rapid increase e g Fe Mn Cu Ni Zn Colloidal Fouling 1 stage lead elements Gradual increase Gradual increase Slight increase organic and or inorganic complexes Mineral Scaling Last stage tail elements Moderate increase Slight increase Marked increase e g Ca Mg Ba Sr Polymerized Silica Last stage tail elements Normal to increased Increased Normal to increased Biological Fouling Any stage usually lead Marked increase Marked increase Normal to increased elements Organic Fouling All stages Gradual increase Increased Decreased dissolved Natural Organic Matter NOM Antiscalant Fouling 2 stage most severe Normal to increased Increased Normal to increased Oxidant damage 1 stage most severe Normal to decreased Decreased Increased e g Cl
45. er of the control panel box when viewed from the back Use small gauge 2 conductor wire connections see Figure 2 The back of the control panel will need to be removed and the power to the system turned off Confirm that the two input signals tank level switch and pretreat switch are all normally open dry contacts Systems with pretreatment can have a normally open contact switch wired to the control This switch should operate close when the pretreatment device is out of service This switch must not supply voltage Be sure to coil and leave some slack wire inside the enclosure NOTE Installing the Clean In Place CIP Hardware CIP valves and piping are not included with the HighPure System Valves and piping are purchased and installed seperately When Installing CIP valves a three way valve should be installed on the feed water line to the RO unit Tees on the permeate and concentrate lines should use two way valves The valves should allow circulation of cleaning chemicals through the RO unit and back to the CIP tank NOTE The system requires sufficient pressure to operate and will shut down if inlet pressure falls below 7 psi NOTE Maximum permeate backpressure is 60 psi Use only Teflon tape to connect water piping to RO system Connect water supply piping that has sufficient flow and pressure to operate at prescribed permeate production and concentrate flow to drain Refer to Specification Table for requirements CAUTION Make cert
46. er or include labor or any travel related to the repairs Charges will be made for our usual and customary costs and associated expenses incurred in providing Warranty Service at any location other than our factory and we reserve the right to precondition travel to your premises on prepayment of our anticipated costs Voiding of Warranty This Warranty shall be void and unenforceable as to any Product which has been damaged by accident mishandling or misuse or has been repaired modified altered disassembled or otherwise tampered with by anyone other than us or an authorized service representative This Warranty shall be void and unenforceable if any unauthorized replacement part has been used or if the Product has not been installed operated and maintained in strict accordance with the Product operating documentation and manuals Any representation or performance metrics set forth in the Product operating documentation shall be void and unenforceable unless the feed water requirements set forth in the Product operating documentation are strictly adhered to Limitations and Exclusions THIS WARRANTY AND THE REMEDIES DESCRIBED HEREIN ARE EXCLUSIVE AND ARE IN LIEU OF ANY AND ALL OTHER WARRANTIES OR REMEDIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FORA PARTICULAR PURPOSE NO LIABILITY FOR CONSEQUENTIAL DAMAGES To the maximum extent permitted by law in no event shall we be liable for any da
47. eriod of transit between the factory and the plant site the elements should not be exposed to temperatures below freezing 32 F 0 C or above 113 F 45 C New Elements are enclosed in a sealed polyethylene bag containing a storage solution and then packaged in a cardboard box Page 35 Maintenance Length of Storage RO elements are typically stored with a preservative solution and enclosed in a vacuum sealed bag The preservative is sodium bisulfite SBS with propylene glycol Only store RO membranes up to 1 year after purchase Elements could be stored for an extended period of time and still perform as expected If the storage conditions listed above are followed and the vacuum in the bag is maintained it may be possible to successfully store elements in excess of three years which is not recommended and not covered under warranty Installation of elements which are stored for such long periods may result in lower flow rates or higher operating pressures than expected In such instances it is recommended to clean the elements using a caustic solution as outlined in Solution 7 in order to improve flux Sanitizing Based on the application sanitizing may be needed Always clean membranes prior to sanitizing system For most normal applications cleaning at low and high pH levels provides suitable sanitization For special applications seek advice from the local systems provider regarding how to sanitize Storing the Unit Alwa
48. ers with a mixture of ions and determined from conductivity measurements may not agree with TDS calculated as a sum of the ions As a rough rule of thumb one ppm of TDS when referenced to a NaCl solution correlates to a conductivity of two micromhos cm microSiemens cm Temperature Temperature is a critical design parameter It has significant effects on feed pump pressure requirements hydraulic flux balance between stages permeate quality and solubility of sparingly soluble salts As a rough rule of thumb every 10 degree Fahrenheit decrease in feed temperature increases the feed pump pressure requirement 15 96 The hydraulic flux balance between stages or in other words the amount of permeate produced by each stage is impacted by temperature When water temperature increases the elements located in the front end of the system produce more permeate which results in reduced permeate flow by the elements located at the rear of the system A better hydraulic flux balance between stages occurs at colder temperatures At warmer temperatures salt passage increases due to the increased mobility of the ions through the membrane Warmer temperatures decrease the solubility of calcium carbonate Colder temperatures decrease the solubility of calcium sulfate barium sulfate strontium sulfate and silica Turbidity Turbidity is a suspension of fine colloidal particles that do not readily settle out of solution and can result in cloudiness Turbidi
49. gh pH CIP Temperature versus pH as per recommendations Flushing with permeate until pH on the brine side is below pH 8 5 Low pH CIP Acid flushing with permeate and non oxidizing biocide Isothiazolin Kathon or Sodium Bisulfite or similar type ak wn General Precautions in Cleaning Chemical Selection and Usage e Ifyou are using a proprietary chemical make sure the chemical has been qualified for use with your membrane by the chemical supplier The chemical supplier s instructions should not be in conflict with membrane suppliers recommended cleaning parameters e Ifyou are using generic chemicals make sure the chemical has been qualified for use with your membrane Use the least harshest cleaning regiment to get the job done This includes the cleaning parameters of pH temperature and contact time This will optimize the useful life of the membrane e Clean at the recommended target temperatures to optimize cleaning efficiency and membrane life Use the minimal amount of chemical contact time to optimize membrane life e Be prudent in the adjustment of pH at the low and high pH range to extend the useful life of the membrane gentle pH range is 4 to 10 while the harshest is 2 to 12 Oil and biologically fouled membranes should not use a low pH clean up first as the oil and biological matter will congeal Cleaning and flushing flows should be in the same direction as the normal feed flow to avoid potential telesco
50. gh the filter The water should continue to flow with a pressure of 30 psi 2 1 Kg cm through the filter After 15 minutes measure again the time in seconds required for 500 ml of feed water to pass the filter The 15 minute index should be used for filter sizing purpose The 15 minute SDI SDI 15 is defined by ASTM as the interval required for accurate and standardized testing How to Calculate Silt Density Index and Plugging Factor After completing the test calculate the SDI by using the equation below 100 1 t ty SDI t 1 Initial time in seconds required to collect the 500 ml sample t Final time in seconds required to collect the second sample after test time t Total elapsed test time either 5 10 or 15 min Page 46 HighPure Deluxe Specifications Model CMDLX1M CMDLX2M CMDLX3M CMDLX4M CMDLX5M CMDLX6M Nominal Capacity m day 1800 2040 3600 4080 5400 6120 7200 8160 9000 10200 10800 12240 6 7 7 7 13 7 15 4 19 2 23 2 27 4 30 9 34 1 38 6 40 8 46 3 System Recovery 38 71 33 75 43 75 33 75 39 75 43 75 Permeate Rate gpm 1 25 1 42 2 5 2 83 3 75 4 25 5 0 5 67 6 25 7 08 7 5 8 5 0 28 0 32 0 57 0 64 0 80 0 97 1 14 1 29 1 42 1 61 1 70 1 93 Concentrate Rate 2 0 0 58 5 0 0 94 5 0 1 42 10 1 89 10 2 36 10 2 83 0 46 0 13 1 13 0 21 1 13 0 32 2 27 0 42 2 27 0 53 2 27 0 64 Feed Water Rate m hr
51. ica silicon dioxide in some cases is an anion The chemistry of silica is a complex and somewhat unpredictable subject In similar fashion as TOC reports the total concentration of organics as carbon without detailing what the organic compounds are silica reports the total concentration of silicon as silica without detailing what the silicon compounds are The Total Silica content of water is composed of Reactive Silica and Unreactive Silica Reactive silica e g silicates SiO is dissolved silica that is slightly ionized and has not been polymerized into a long chain Reactive silica is the form that RO and ion exchange chemists hope for Reactive silica is the form of silica to be used in RO projection programs Reactive silica though it has anionic characteristics is not counted as an anion in terms of balancing a water analysis but it is counted as a part of total TDS Unreactive silica is polymerized or colloidal silica acting more like a solid than a dissolved ion Silica in the colloidal form can be removed by a RO but it can cause colloidal fouling of the front end of a RO Colloidal silica with sizes as small as 0 008 micron can be measured empirically by the SDI Silt Density Index test but only that portion that is larger than 0 45 micron or larger Particulate silica compounds e g clays silts and sand are usually 1 micron or larger and can be measured using the SDI test Polymerized silica which uses silicon d
52. improved permeate water quality and reduce permeate flow For more information contact your membrane cleaner supplier Page 24 Maintenance WARNING Failure to clean the membranes on time may cause irreversible fouling of the membranes requiring their early replacement Indicators can be seen in the Operation Log All of these problems develop slowly and are easy to see in the log as the problem progresses A close monitoring of the Operation Log will reveal the problem on time and you won t need to find the normalized flows to proceed to clean the membranes Membranes should be kept as clean as possible at all times Given that all other variables are held constant Table 2 gives general trends that can be followed in the daily logs Table 2 Operation Trends If Increases Then Increases And Permeate Flow Increases or Decreases or Decreases or TDS or Decreases Temp 1 Rejection l Permeate 1 Temp Rejection Permeate Pressure 1 Rejection i Permeate 1 Pressure Rejection Recovery 1 Potential Fouling 1 TDS 1 Potential Fouling l TDS l Provide feed water quality and Operating Log data to the system designer or any other reputable service to seek advice on identifying the cause of the fouling scaling and what will be the most acceptable cleaning procedure Cleaning should be carried out before these values are exceeded to maintain
53. ing normal operation It is the responsibility of the end user to ensure that the system is properly flushed for each application Pentair assumes no liability for the misuse of any chemical listed herin and all safety issues are the responsibility of the end user Consult manufacturers Material Safety Data Sheets MSDS s for proper handling and disposal of any of the listed chemicals Biocides which can be used with Composite Polyamide ESPA1 Membrane Elements Isothiazolin Isothiazolin is distributed by manufacturers of water treatment chemicals under the trade name Kathon The commercial solution contains 1 5 of the active ingredient The recommended concentration of Kathon for disinfection and storage is 15 to 25 ppm Sodium Bisulfite Sodium bisulfite SBS can be used as an inhibitor of biological growth To control biological growth with sodium bisulfite it is applied at a dosing rate of 500 ppm for 30 to 60 minutes daily The membrane must be flushed for 2 24 hours after dosing the membrane with SBS Sodium bisulfite at a 196 concentration can also be used as a preservative during long term storage of the membrane elements Page 34 Maintenance General Storage Procedures for Composite Polyamide ESPA1 RO Membrane Elements Guidelines for storing the supplied Hydranautics ESPA1 Composite Polyamide Reverse Osmosis RO membrane elements NOTE Before undertaking any long term or short term storage operation contact Hydranau
54. ioxide as the building block exists in nature e g quartzes and agates Silica in the polymerized form also results from exceeding the reactive silica saturation level The solubility of reactive silica is typically limited to 200 300 with the use of silica dispersant Reactive silica solubility increases with increasing temperature increases at a pH less than 7 0 or more than 7 8 and decreases in the presence of iron which acts as a catalyst in the polymerization of silica Silica rejection is pH sensitive with increasing rejection at a more basic pH as the reactive silica exists more in the salt form than in the acidic form TDS Total Dissolved Solids TDS in water treatment is the inorganic residue left after the filtration of colloidal and suspended solids and then the evaporation of a known volume of water TDS is reported as ppm or mg l TDS in RO design projections is determined by calculation using the sum of the cations anions and silica ions with the ion reported as such not as calcium carbonate Feed or permeate TDS in RO design projections can also be estimated by applying a conversion factor to the conductivity of the solution TDS can also be determined in the field by use of a TDS meter TDS meters measure the conductivity of the water and then apply a conversion factor that reports TDS to a known reference solution e g ppm sodium chloride or ppm potassium chloride The user is cautioned that TDS levels for wat
55. ituation by testing at their facility a fouled element pulled from your system It is not unusual to use a number of different cleaning chemicals in a specific sequence to achieve the optimum cleaning Typically a high pH cleaning is used first to remove foulants like oil or biological matter followed by a low pH cleaning to remove foulants like mineral scale or metal oxides hydroxides fouling There are times that order of high and low pH cleaning solutions is reversed or one solution only is required to clean the membranes Some cleaning solutions have detergents added to aid in the removal of heavy biological and organic debris while others have a chelating agent like EDTA added to aid in the removal of colloidal material organic and biological material and sulfate scale An important thing to remember is that the improper selection of a cleaning chemical or the sequence of chemical introduction can make the foulant worse It is recommended that the membrane system operator thoroughly investigate the signs of fouling before they select a cleaning chemical and a cleaning protocol Some forms of fouling iron deposits and scaling commonly associated with well waters may require only a simple low pH cleaning However for most complex fouling phenomena the following sequence is recommended 1 Flushing with permeate with addition of non oxidizing biocide Isothiazolin Kathon or Sodium Bisulfite or similar type at the end of the flushing Hi
56. ivide or multiply the expected flow 5 gpm by the temperature correction factor from the table below to determine the actual flow Example 60 F 15 6 C water temp 5 1 34 3 73 gom 5 x 0 75 3 75 Permeate Temperature Correction Factors Running vater Temperature Divisor Multiplier F C 35 2 0 2 16 0 46 40 4 4 1 96 0 51 45 7 2 1 78 0 56 50 10 0 1 62 0 62 55 12 8 1 47 0 68 60 15 6 1 34 0 75 65 18 3 1 23 0 81 70 21 1 1 13 0 88 75 23 9 1 03 0 97 77 25 0 1 00 1 00 80 26 7 0 95 1 05 85 29 4 0 88 1 14 90 32 2 0 81 1 23 95 35 0 0 75 1 33 100 38 0 0 69 1 45 104 40 0 0 65 1 54 Page 51 Appendix B Conductivity Resistivity and TDS Conversion Chart Conductivity Note Microsiomens cm oF Resistivity Meg Ohms cm Controller Display Approximate Micromhos cri Ohms cm or Dissolved Solids Grains Gallon Gpg S 25 C Siemen cm Parts per Million ppm as CaCO 25 C 3 0 056 18 000 000 18 0 0 0277 0 00164 0 059 17 000 000 17 0 0 0294 0 00170 0 063 16 000 000 16 0 0 0313 0 00181 0 067 15 000 000 15 0 0 0333 0 00193 0 072 14 000 000 14 0 0 0357 0 00211 0 077 13 000 000 13 0 0 038 0 00222 0 084 12 000 000 12 0 0 0417 0 00240 0 091 11 000 000 11 0 0 0455 0 00263 0 100 10 000 000 10 0 0 0500 0 00292 0 111 9 000 000 9 0 0 0556 0 00322 0 125 8 000 000 8 0 0 0625 0 00358 0 143 7
57. ll operate automatically even after a power failure On Deluxe models once permeate is present at the TDS sensor the digital TDS display will show the temperature corrected TDS based on the conductivity of the water If the TDS is above 999 ppm the digital display will show A A A The TDS of the permeate water can also be measured manually After the system has been running the permeate water tank supplied separately will fill When the water level rises and closes the normally open full tank sensor for 5 seconds the FULL TANK LED will light Green and the digital display will show FUL Once the tank is full the steady yellow FLUSH LED will light the inlet solenoids will remain open and the pump will run for 5 minutes while the concentrate bypass solenoid will open to flush concentrate to drain for five minutes The digital display on Deluxe models will show FLS then After five minutes the inlet solenoid will close the pump will turn off and the concentrate bypass solenoid will close After the water level has dropped in the tank and the top water level switch of the tank opens the green FULL TANK LED light will flash for 15 minutes After 15 minutes the FULL TANK light will turn off and the system will start up again to fill the tank If the pretreat system goes into bypass or shuts off for 2 seconds the PRE TREAT lock out will be steady green the inlet solenoid will close and the pump will shut off so untreated water does
58. lt 0 01 lt 350 VF5 20F GXXXDX 25 64 345 157 Page 47 Controller Specifications Power 240 VAC 15 10 60 Hz 6 watts Display 3 digit red LED for measuring TDS Switch Inputs Dry Contact Normally Open Pressure fault Pretreat lockout Tank full Relay Outputs RO pump relay 240 VAC 3 HP Inlet valve relay 240 VAC 5A Flush valve relay 240 VAC 5A Relays supply same output voltage as board power 240 VAC Page 48 Ordering Information 8 109 3 lt a 13 5 Description Item Description 1 High Pressure Pump 9 Permeate Flowmeter 2 Membrane Housing 10 Adjustable Recycle Flowmeter 3 Prefilter Inlet Gauge 11 Conductivity Display 4 Prefilter Outlet Gauge 12 Control 5 Membrane Feed Gauge 13 Concentrate Control Valve 6 Concentrate Gauge 14 Solenoid Inlet 7 Prefilter 15 Solenoid Flushing 8 Concentrate Flow Meter Page 49 Ordering Information Part Number Standard Systems and Parts CM801005 HighPure RO CMDLX1M CM801006 HighPure RO CMDLX2M CM801007 HighPure RO CMDLX3M CM801008 HighPure RO CMDLX4M CM801009 HighPure RO CMDLX5M CM801010 HighPure RO CMDLX6M CM490001 Motor 230V Single Phase 1 HP CM490002 Motor 230V Single Phase 2 HP CM490003
59. ly picked because its molecular weight is 100 and its equivalent weight is 50 since it is divalent The formula to convert an ion reported as mg l as the ion to ppm as calcium carbonate is to multiply mg l as the ion times the ratio of the equivalent weight of the ion by the equivalent weight of calcium carbonate As an example a water with sodium at 100 ppm as calcium carbonate and chloride at 100 ppm as calcium carbonate are in ionic balance since every sodium ion has a corresponding chloride ion However sodium concentration at 100 ppm as calcium carbonate is only 47 mg l of actual substance since its equivalent weight is 23 0 and 100 ppm of chloride as calcium carbonate is only 71 mg l of actual substance since its equivalent weight is 35 5 The calculated TDS of this solution is 118 mg l Raw Water Water entering into a water treatment system that may be coming directly from a municipal system or directly from sources such as rivers lakes wells etc Recirculating Water A term sometimes used in pumps in this manual it refers to a portion of the reject water coming out of the last membrane element s that it is brought back to be blended with the RO feed water to make the membrane feed water Page 37 Glossary RO Feed Water Water entering into a reverse osmosis system In the case of having a recirculating system membrane feed water will be the blend of the RO feed water and the recirculating water Silica SiO Sil
60. mages whatsoever including without limitation loss of time inconvenience expenses such as telephone calls labor or material charges incurred in connection with the removal or replacement of the Product or component s special incidental consequential or indirect damages for loss of business profits business interruption loss of business information or any other pecuniary loss arising out of the use of or inability to use the Product or component s even where advised of the possibility of such damages In any case our entire liability under any provision of this Limited Warranty shall be limited to the amount actually paid by you for the Product or component s PLEASE NOTE Certain of the above limitations or exclusions may not apply where prohibited by applicable state law WARRANTIES OR REPRESENTATIONS BY OTHERS No dealer distributor or other person has any authority to make any warranties or representations concerning us or the Product or components Accordingly we are not responsible for any such warranties or representations NO PERSON HAS ANY AUTHORITY TO BIND US TO OTHER THAN WHAT IS SET FORTH ABOVE THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM JURISDICTION TO JURISDICTION THE PARTIES RECOGNIZE AND AGREE THAT IN ALL RESPECTS THE LAWS OF THE STATE OF MINNESOTA SHALL GOVERN THIS LIMITED WARRANTY Page 54 Operation Log Sheet 9 eJojeq jues JO
61. marea 14 Figure 6 15 Figure 7 CIP Connections ccccsscceceeeseecceceeeseneeeseensaneeeeeeaaneeeseeaaneeesecaaaeceseeeaaeeeesecaaaeseeseensnaeeseeeneneeeeeensnnnees 32 Page 5 Installation amp Start Up Checklist e Use this form to record initial system hardware and site conditions Retain copy for future reference e Fill in the appropriate data if available e Checklist data should be collected and logged on this form for each system installed Start up Data Checklist of Installation Installation Date 1 Installation location allows access to membrane s Installer 2 Listed components fittings present Installation Site 3 Loose components assembled to system Application 4 Membranes and prefilter installed System Model 5 System securely in place Serial Number 6 Plumbing connections completed Water Source 7 Initial flush w o leaks Pretreatment Installed 8 Leak detection system installed ___ Clean in Place Installed Yes No pm 9 Electrical power connected single phase Feed Water Analysis Volts Hz SDI 10 System sanitized TDS Design Start up 11 Controller display okay C e 12 Proper operation verified ___ Total Iron 0 13 Installation Set Up information entered onto form Chlorine _ 0 0 0 0 14 Clean in place connections valves installed Feed
62. mbrane elements is as follows 1 Perform a low pressure flush at 60 psi 4 2 Kg cm or less of the pressure tubes by pumping clean water from the cleaning tank or equivalent source through the pressure tubes to drain for several minutes Flush water should be clean water of RO permeate or DI quality and be free of hardness transition metals and chlorine 2 Mixa fresh batch of the selected cleaning solution the cleaning tank The dilution water should be clean water of RO permeate or DI quality and be free of hardness transition metals and chlorine The temperature and pH should be adjusted to their target levels 3 Circulate the cleaning solution through the pressure tubes for approximately one hour or the desired period of time At the start send the displaced water to drain so you don t dilute the cleaning chemical and then divert up to 2096 of the most highly fouled cleaning solution to drain before returning the cleaning solution back to the RO Cleaning Tank For the first 5 minutes slowly throttle the flow rate to 1 3 of the maximum design flow rate This is to minimize the potential plugging of the feed path with a large amount of dislodged foulant For the second 5 minutes increase the flow rate to 2 3 of the maximum design flow rate and then increase the flow rate to the maximum design flow rate If required readjust the pH back to the target when it changes more than 0 5 pH units 4 An optional soak and recirculation sequenc
63. mical solution strength is based on the actual weight of the 100 pure chemical or active ingredient Solution 1 This is a low pH cleaning solution of 2 0 w citric acid It is useful in removing inorganic scale e g calcium carbonate calcium sulfate barium sulfate strontium sulfate and metal oxides hydroxides e g iron manganese nickel copper zinc and inorganic based colloidal material Note Citric acid is available as a powder Solution 2 This is a high pH cleaning solution target pH of 10 0 of 2 0 w of STPP sodium tripolyphosphate Na P O and 0 8 of Na EDTA sodium salt of ethylaminediaminetetraacetic acid It is specifically recommended for removing calcium sulfate scale and light to moderate levels of organic foulants of natural origin STPP functions as an inorganic based chelating agent and detergent Na EDTA is an organic based chelating cleaning agent that aids in the sequestering and removal of divalent and trivalent cations and metal ions STPP and Na EDTA are available as powders Solution 3 This is a high pH cleaning solution target pH of 10 0 of 2 0 of STPP sodium tripolyphosphate Na P 0 and 0 025 Na DDBS C H CH SO Na sodium salt of dodecylbenzene sulfonate It is specifically recommended for removing heavier levels of organic foulants of natural origin STPP functions as an inorganic based chelating agent and detergent Na DDBS functions as an anionic detergent
64. mical to be added to 100 U S gallons 379 liters of make up water Prepare the solutions by proportioning the amount of chemicals to the amount of make up water to be used Make up water quality should be of RO permeate or deionized DI quality and be free of chlorine and hardness Before forwarding the cleaning solution to the membranes it is important to thoroughly mix it adjust the pH according to the target pH and stabilize the temperature at the target temperature Unless otherwise instructed the cleaning design parameters are based on a chemical recirculation flow period of one hour and an optional chemical soak period of one hour Page 30 Maintenance Table 5 Hydranautics Recipes for Cleaning Solutions The quantities listed below are to be added to 100 U S gallons 379 liters of dilution water Cleaning Solution Bulk Ingredients Quantity Target pH Adjustment Target Temp 1 Citric acid 5 5 100 17 0 pounds 7 7 kg No pH adjustment is required 104 F 40 C 2 STPP sodium tripolyphosphate 17 0 pounds 7 7 kg as 100 powder Adjust to pH 10 0 with sulfuric 104 F 40 C Na EDTA or hydrochloric acid Versene 220 or equal 7 0 pounds 3 18 kg as 100 powder 3 STPP sodium tripolyphosphate 17 0 pounds 7 7 kg as 100 powder Adjust down to pH 10 0 with 104 F 40 C Nie sulfuric or hydrochloric acid a Na dodecylbenzene sulfonate
65. n anionic surfactant that will cause some foaming This is considered to be a harsh cleaning regiment Solution 7 This is a high pH cleaning solution target pH of 11 5 of 0 196 w of NaOH sodium hydroxide It is useful in the removal of polymerized silica This is considered to be a harsh cleaning regiment IMPORTANT It is recommended that the MSDS of the cleaning chemicals be procured from the chemical supplier and that all safety precautions be utilized in the handling and storage of all chemicals Page 29 Maintenance Selecting a Cleaning Solution Table 4 lists the recommended generic chemical solutions for cleaning an RO membrane element based on the foulant to be removed IMPORTANT It is recommended that the MSDS of the cleaning chemicals be procured from the chemical supplier and that all safety precautions be utilized in the handling and storage of all chemicals Table 4 Hydranautics Recommended Chemical Cleaning Solutions Foulant Gentle Cleaning Solution Harsher Cleaning Solution Calcium carbonate scale 1 4 Calcium barium or strontium sulfate scale 2 4 Metal oxides hydroxides Fe Mn Zn Cu Al 1 5 Inorganic colloidal foulants 1 4 Mixed Inorganic organic colloidal foulants 2 6 Polymerized silica coating None 7 Biological matter 20r3 6 NOM organic matter naturally occurring 20r3 6 Table 5 Hydranautics Recipes for Cleaning Solutions offers instructions on the volumes of bulk che
66. nd shipping instructions set forth in the operating documentation or RGA instructions or as otherwise reasonably required to the address provided to you together with 1 the RGA number issued by us at your request 2 proof of purchase and if necessary proof of installation date 3 a description of the suspected defects 4 the serial number of the Product alleged to be defective and 5 a description of the type of water pretreatment equipment that has been utilized in connection with the Product if any We shall in our sole and reasonable discretion determine whether a returned Product or component is defective in material or workmanship We will pay the outbound freight but not express freight for any replacement Product or component that we ship to you in fulfillment of our obligations under this Warranty In an emergency situation as determined by us we will at our option forward replacement Product or components to you without requiring an RGA for the questionable part s provided however that you shall i issue a purchase order or other payment guarantee prior to shipment and ii return the questionable Product or component as soon as possible If the questionable Product or component is found to have been misused or if the defective part is not received by us within thirty 30 days of the date you first notify us of the issue you will be invoiced for the replacement Product or component s we provided This Warranty does not cov
67. not run through the RO system The digital display will show PL then If the system experiences low pressure for more than 2 seconds the pump will shut off the inlet solenoid will close the red LOW PRESSURE LED will flash and the digital display will show LP then After 30 seconds the system will attempt to restart If the pressure is still too low the shutoff and restart cycle will repeat again at 5 minutes and then at 30 minutes If the pressure is still too low after 30 minutes the system will shut down and the RUN button will have to be pressed twice to clear the fault Before restarting the system the water supply to the system including pretreatment valves and the prefilter should be checked for adequate pressure at the required water flow If the pressure fault clears by running for more than 10 seconds the retry function is reset and will function normally System Requirements The HighPure RO System will run effectively only when the feed water meets certain requirements The specifications table details the feed water for each model of HighPure RO System When the RO system is installed and made operational it is important to fill in the nstallation and Start up Checklist at the front of this manual If the RO system is not performing properly review the check list and be certain the feed water is within specifications Page 19 Troubleshooting CAUTION Hazardous voltages are present when power is applied to the
68. nstant voltage must be supplied to the controller to maintain proper function Proper pretreatment must be installed before the RO system to meet the minimum water quality requirements Failure to meet these requirements will void the warranty The correct prefilter must be used and changed according to the instructions or the warranty will be void Page 7 Safety Cautions amp Warnings Safety HighPure RO System must be wired according to local electrical codes to prevent the possibility of electrical shock HighPure RO System has been designed and tested to offer reliable service when installed by a qualified professional and operated and maintained according to the instructions in this service manual e Any corrosive chemicals used in the HighPure RO System to be for membrane cleaning only Other chemicals may damage the RO System See section on cleaning Do not install the HighPure RO System if it has been damaged or dropped e Disconnect the HighPure RO System from the power source before performing any service or maintenance If membrane elements cannot be loaded into the system upon delivery store elements a cool dry location out of direct sunlight Do not allow the elements to freeze Always shut off the water flow and release water pressure before cleaning or maintaining the HighPure RO System or changing cartridges HighPure RO System is intended for indoor use only
69. nt or component This Warranty does not cover disposable items such as fuses lamps filters cartridges reverse osmosis membranes or other disposable items which must be replaced periodically under normal and foreseeable operating conditions of the Product Warranty Commencement Date The Warranty Commencement Date for the Product shall be the later of the date of 1 receipt by you or 2 the date of installation provided that such installation must occur within three 3 months of shipment from our facility In no event shall the Warranty Commencement Date exceed three 3 months from the date of shipment from our manufacturing facility You shall provide proof of purchase in order to exercise the rights granted under this Warranty If we request you must also provide proof of the installation date Proof of the installation date can be made by providing us with a completed copy of the Installation amp Start Up Checklist supplied with the Product and signed by the authorized Product installer Warranty Service OUR SOLE OBLIGATION UNDER THIS WARRANTY IS LIMITED TO REPAIR OR REPLACEMENT AT OUR OPTION OF THE PRODUCT OR PART THEREOF PROVED TO BE DEFECTIVE IN MATERIAL OR WORKMANSHIP DURING THE WARRANTY PERIOD You at your risk and expense shall be responsible for returning the defective Product or component s upon obtaining a Return Goods Authorization RGA number from us freight prepaid insured and in conformance with any special packaging a
70. orrosion proof Major cleaning system components are RO Cleanup Skid 10 micron Filter RO Stage Clean in Place Pump Concentrate Permeate Figure 7 CIP Connections RO Cleaning Tank This tank needs to be sized properly to accommodate the displacement of water in the hose piping and RO elements The tank should be designed to allow 100 drainage easy access for chemical introduction and mixing a recirculation line from the RO Cleaning Pump proper venting overflow and a return line located near the bottom to minimize foam formation when using a surfactant RO Cleaning Pump This pump needs to be sized to develop the proper cross flow velocity to scrub the membrane clean The maximum recommended pressure is 60 psi 4 bar at the inlet to the pressure vessels to minimize the production of permeate during cleaning and reduce the convective redeposition of foulant back on to the membrane surface The table below denotes the flow rate ranges for each pressure tube RO Cleaning Cartridge Filter Normally 5 to 10 micron and is designed to remove foulants that have been displaced from the cleaning process RO Tank Heater or Cooler The maximum design temperature for cleaning is 113 F 45 C It should be noted that heat is generated and imparted by the RO Cleaning Pump during recirculation RO Tank Mixer This is recommended to get optimal mixing of chemical though some designers rely solely on the slow in
71. ow Flush and clean the machine immediately Flow meter inaccurate Check the flow rate manually with a stopwatch and calibrated container Machine not operating No power to machine or display Check the controller internal fuses and check circuit breakers Measure the voltage Check electrical outlet Defective board in controller External contacts have shut machine down Check for closed contacts tank full pre treat lockout and pressure fault Thermal overload in motor has tripped Allow the machine to cool Check the feed water supply and or amp draw to the motor Motor and or pump not operating properly See pump instructions Contact Pentair for possible repair or replacement Check Fuses F1 and F2 Low pressure condition has turned OFF machine The low pressure LED will flash Check for minimum inlet pressure and push power button twice See low operating pressure Tank level switch has shut off the machine If tank is full LED will be on wait for tank to empty If LED is flashing the control is in a delayed restart for up to 15 minutes Fuse F3 bad The water quality display will not be lit Check or replace fuse F3 located below the transformer No power at terminals L1 and L2 Use VOM meter to check for power Control board defective Check for power at terminals L1 and L2 If power is present control board may need replacing Page 20
72. ping and element damage When cleaning a multi stage RO the most effective cleaning is one stage at a time so cleaning flow velocities can be optimized and foulants from upstream stages don t have to pass through downstream stages Flushing out detergents with higher pH permeate can reduce foaming problems e Verify that proper disposal requirements for the cleaning solution are followed Page 28 Maintenance e If your system has been fouled biologically you may want to consider the extra step of introducing a sanitizing biocide chemical before and after a successful cleaning Biocides can be introduced before and immediately after cleaning periodically e g once a week or continuously during service You must be sure that the biocide is compatible with the membrane does not create any health risks is effective in controlling biological activity and is not cost prohibitive e For safety reasons make sure all hoses and piping can handle the temperatures pressures and pH s encountered during a cleaning For safety reasons always add chemicals slowly to an agitated batch of make up water e For safety reason always wear safety glasses and protective gear when working with chemicals e For safety reasons don t mix acids with caustics Thoroughly rinse the 1st cleaning solution from the RO system before introducing the next solution Description of Cleaning Solutions NOTE The notation w denotes that the diluted che
73. r a corresponding range of pH Cleaning operations performed at the extremes may result in a more effective cleaning but can shorten the useful life of the membrane due to hydrolysis To optimize the useful life of a membrane it is recommended to use the weakest cleaning solutions and minimize the contact time whenever possible Table 7 Cleaning and Flushing Flow Rates per RO Pressure Tube Pressures are not to exceed 60 psi 4 bar at inlet to tubes Element Diameter GPM LPM 4 inches 6 to 10 23 to 38 Page 31 Maintenance Table 8 Cleaning Solution Volume Requirement per RO Element these volumes do not include volumes required for piping filters etc these volumes do not include inital 20 of volume dumped to drain Element Size Normal Fouling Gallons Heavy Fouling Gallons Normal Fouling Liters Heavy Fouling Liters 4 x 40 inches 2 5 5 9 5 19 RO Cleaning Skid The successful cleaning of an RO system on site requires a well designed RO cleaning skid Normally this skid is not hard piped to the RO skid and uses temporary hosing for connections It is recommended to clean a multi stage RO one stage at a time to optimize cross flow cleaning velocity The source water for chemical solution make up and rinsing should be clean RO permeate or DI water and be free of hardness transition metals e g iron and chlorine Components must be c
74. r to adjust the CAL screw Remove any jewelry that could contact any electrical components in the control box Any contact with the electrical circuit on the board could cause death or severe injury or damage to the controller Rebuilding Pump See Berkeley Pump Owners manual provided with system or go to http Awww berkeleypumps com pdf BE327 PDF Page 23 Maintenance Cleaning the Membranes The following membrane cleaning summary is taken from several papers by Hydranautics Common foulants affecting the performance of the supplied Hydranautics ESPA1 Composite Polyamide Reverse Osmosis RO membrane elements and the removal of these foulants The information applies to 4 inch diameter RO membrane elements NOTE It is recommended that all RO membrane cleaning operations should be closely coordinated with Hydranautics Hydranautics field service personnel are available to be on site for cleaning assistance Please contact Hydranautics for current charges for this service NOTE The use of cationic surfactant should be avoided in cleaning solutions since irreversible fouling of the membrane elements may occur If additional information is needed please contact the Technical Services Department at HYDRANAUTICS 401 Jones Rd Oceanside CA 92058 Tel 760 901 2500 Fax 760 901 2664 e mail info hydranautics com Internet www membranes com RO Membrane Fouling and Cleaning During normal operation over a period of time RO membrane
75. rane feed pressure will increase Adjust until pressure is between 100 to 180 psi 7 Fully open recycle control valve on recycle flow meter by turning counterclockwise to the left After air is purged from the system set the recycle flow rate Make adjustments as needed See Table 1 Concentrate vs Recycled at Standard Recoveries below for additional information on adjusting the recycle flow Check to make sure all flowrates are withing designed ranges Adjust accordingly 8 The permeate flow should run through the temporary permeate piping to a drain for 2 to 24 hours to remove residual sanitizing chemicals After flushing is complete connect permanent permeate piping to tank A permeate check valve must be installed between the storage tank and the membrane 9 Check all flow rates again Allow tank to fill tested for leaks before shippment Leaks may occur due to vibration in shipping 11 12 Check that TDS is at or below designed level Make appropriate adjustments as needed Make sure concentrate flush starts when tank full switch is closed This can be simulated by manualy moving the switch Check that drain flow is appropriate to handle concentrate flush for 5 minutes 13 14 15 16 Table 1 Concentrate vs Recycled at Standard Recoveries Table Inspect all connections for leaks periodically until storage tank reaches full pressure or level All Pentair systems are Fill out the Installation and Start up checklist at
76. refore advised to flush membranes prior to use to eliminate residual preservatives in the product stream The standard ESPA1 4040 membrane supplied are stored in the sodium bisulfite and propylene glycol solution Once the elements have had the preservatives flushed from them they would need to have preservatives re applied for long term storage Preservative Flushing during Start up Once elements have been loaded and vessels sealed it is recommended to flush the system to drain with feedwater at design operating pressure for a minimum of 2 24 hours If the elements are to be used in systems with potable water for drinking food or requiring ultrapure water a minimum flushing time of 24 hours is recommended to reduce the TOC concentration to below 50 ppb assuming zero TOC in the feedwater Always test permeate after each flush for residual preservative or other critical contaminants WARNING For potable applications using models that are preserved with both sodium bisulfite and propylene glycol discard the product water for at least 24 hours prior to drinking or using in food applications Ingestion of the preservative may cause irritation of the gastrointestinal tract colic diarrhea or other similar symptoms The membrane preservative may be harmfull to humans and animals when taken internally WARNING This system produces high purity water that can corrode standard galvanized copper piping and brass fittings in common piping systems Us
77. resulting from bacterial slimes fungi molds etc can be difficult to remove particularly if the feed path is plugged Plugging of the feed path makes it difficult to introduce and distribute the cleaning solutions To inhibit additional growth it is important to clean and sanitize not only the RO system but also the pretreatment piping dead legs etc The membranes once chemically cleaned will require the use of an approved biocide and an extended exposure requirement to be effective Page 27 Maintenance Selection and Use of Cleaning Chemicals There are a number of factors involved in the selection of a suitable cleaning chemical or chemicals and proper cleaning protocol The first time you have to perform a cleaning it is recommended to contact the manufacturer of the equipment the RO element manufacturer or a RO specialty chemical and service supplier Once the suspected foulant s are identified one or more cleaning chemicals will be recommended These cleaning chemical s can be generic or can be private labeled proprietary chemicals Typically the generic chemicals can be of technical grades and are available from local chemical supply companies The proprietary RO cleaning chemicals can be more expensive but may be easier to use and you cannot rule out the advantage of the intellectual knowledge supplied by these companies Some independent RO service companies can determine the proper chemicals and cleaning protocol for your s
78. s are subject to fouling by suspended or sparingly soluble materials that may be present in the feed water Common examples of foulants are e Calcium carbonate scale Sulfate scale of calcium barium or strontium Metal oxides iron manganese copper nickel aluminum etc e Polymerized silica scale norganic colloidal deposits Mixed inorganic organic colloidal deposits e organic material Natural Organic Matter Man made organic material e g antiscalant dispersants cationic polyelectrolytes Biological bacterial bioslime algae mold or fungi The nature and rapidity of fouling depends on a number of factors such as the quality of the feed water and the System recovery rate Typically fouling is progressive and if not controlled early will impair the RO membrane element performance in a relatively short time Cleaning should occur when the RO shows evidence of fouling just prior to a long term shutdown or as a matter of scheduled routine maintenance The elements shall be maintained in a clean or nearly clean condition to prevent excessive fouling by the foulants listed above Some fouling is allowed as long as normalized permeate flow decrease is less than 1096 normalized permeate quality decrease is less than 1096 normalized pressure drop as measured between the feed and concentrate headers increase is less than 15 Organic fouling of the membranes can cause an increase in the feed pressure and an
79. the brine seal end first it is possible for the brine seal to flip or bend backwards To help avoid this the walls of housing should be lubricated with glycerin Concentrate Water 1 assemblies be loose or i removed End Cap 1 1 Concentrate Water Concentrate Water i i 1 1 Y Brine Seal 9 EJju92UO07 JO UONDSIIG 9 J1u92UO JO uoo gt Brine Seal must point against the input water flow Permeate Permeate Y Input Water for Concentrate Water first membrane Figure 5 Position of Membranes Some HighPure models may have pipe assemblies removed for protection during shipment Figure 3 These assemblies need to be removed and reconnected after the membranes are installed Proper placement of the union O rings is required prior to tightening the union connections Figure 6 CAUTION Use glycerin on O rings Make certain O ring is seated in groove Do not overtighten unions Hand tighten only Page 14 Installation and Initial Start up Figure 6 Union O ring If using external tank level and pretreat lock out switches connect normally open switches to tank level TF and pretreat lock out PF on appropriate terminals on circuit board for non powered dry contact control Figure 2 The pretreatment inputs must be wired in parallel The terminals are located in the upper right corn
80. the elements in a clean or nearly clean condition Effective cleaning is evidenced by the return of the normalized parameters to their initial Start up value In the event you do not normalize your operating data the above values still apply if you do not have major changes in critical operating parameters The operating parameters that have to stay constant are permeate flow permeate back pressure recovery temperature and feed TDS If these operating parameters fluctuate then it is highly recommended that you normalize the data to determine if fouling is occurring or if the RO is actually operating normally based on the change in a critical operating parameter Hydranautics offers a free normalization software program called ROData which can be downloaded from their web site at www membranes com Monitoring overall system performance on a regular basis is an essential step in recognizing when membrane elements are becoming fouled Performance is affected progressively and in varying degrees depending on the nature of the foulants Table 1 RO Troubleshooting Matrix provides a summary of the expected effects that common foulants have on performance RO cleaning frequency due to fouling will vary by site A rough rule of thumb as to an acceptable cleaning frequency is once every 3 to 12 months If you have to clean more than once a month you should be able to justify further capital expenditures for improved RO pretreatment or a re design
81. the pressure tubes are filled close the appropriate valves to prevent air from entering the system 3 Reflush as described above at 5 day intervals B Long Term Storage Long term storage is for periods where an RO system must remain out of operation for more than thirty days with the RO elements in place Prepare each RO train as follows 1 Clean the RO membrane elements in place with Sodium Bisulfite or Isothiazolin Kathon 2 Flush the RO section with an approved biocide or check with Hydranautics for recommendations and approvals of currently available products prepared from permeate 3 When the RO section is filled with this solution make sure that it is completely filled close the valves to retain the solution in the RO section 4 Repeat Steps 2 and with fresh solution every thirty days if the temperature is below 80 F 27 C or every fifteen days if the temperature is above 80 F 27 C 5 When the RO system is ready to be returned to service flush the system for approximately 2 24 hours with the product dump valve open to drain or temporary piping plumbed to the drain with the appropriate air gap Before returning the RO system to service check for any residual biocide in the product C Prior To Installation When RO elements are stored prior to installation they should be protected from direct sunlight and stored in a cool dry place with an ambient temperature range of 40 F to 95 F 4 4 C to 35 C During the p
82. tics for specific instructions related to the local environment The general storage procedures included in this bulletin are as follows A Short term storage of RO membrane elements in place in membrane housings B Long term storage of RO membrane elements in place in membrane housings C Dry storage of RO membrane elements as spares prior to installation or before start up NOTE The composite polyamide type of RO membrane elements supplied may not be exposed to chlorinated water under any circumstances Any such exposure will cause irreparable damage to the membrane Absolute care must be taken following any disinfection of piping or equipment or the preparation of cleaning or storage solutions to ensure that no trace of chlorine is present in feedwater to the RO membrane elements If there is any doubt about the presence of chlorine perform chemical testing to make sure Neutralize any chlorine residual with a sodium bisulfite solution and ensure adequate contact time to accomplish complete dechlorination A Short Term Storage Short term storage is for periods where an RO system must remain out of operation for more than five days but fewer than thirty days with the RO elements in place Prepare each RO train as follows 1 Flush the RO section with feedwater while simultaneously venting any gas from the system Flushing with RO permeate water instead of feedwater has added benefits and may help remove build up of foulants 2 When
83. timated as the difference between the current pH of the water pH and the pH at which calcium carbonate reaches saturation pHLSI The following link will take you to the American Water Works Association website and a calculator that can be used to calculate two useful corrosion indices The Langlier Saturation Index and the Ryznar Stability Index http www awwa org Resources RTWCorrosivityCalc cfm navitemNumber 1576 Page 53 Limited Warranty The Manufacturer is referred to herein as Manufacturer us or our and the purchaser is referred to herein as Buyer or you This Limited Warranty is applicable to the HighPure Reverse Osmosis System the Product Warranty Terms Subject to the terms and conditions set forth herein Manufacturer warrants to the original Buyer that the Product as manufactured by us is and will be free of defects in material and workmanship for twelve 12 months from the Warranty Commencement Date as defined below when used in strict accordance with the applicable operating instructions and manual and within the range of the operating conditions specified by us for the Product This Warranty does not extend to equipment or components manufactured by others into which our Product has been incorporated or to equipment or components which have been incorporated into our Product but if allowable we will assign to you any such warranty made by the manufacturer of such equipme
84. tion Index LSI is a method of reporting the scaling or corrosive potential of low TDS brackish water based on the level of saturation of calcium carbonate LSI is important to boiler water and municipal plant chemists in determining whether a water is corrosive has a negative LSI or will tend to scale calcium carbonate has a positive LSI LSI is important to RO chemists as a measurement of the scaling potential for calcium carbonate The LSI value is calculated by subtracting the calculated pH of saturation of calcium carbonate from the actual feed pH Calcium carbonate solubility decreases with increasing temperature as evidenced by the liming of a teakettle higher pH higher calcium concentration and higher alkalinity levels The LSI value can be lowered by reducing pH by the injection of an acid typically sulfuric or hydrochloric into the RO feed water A recommended target LSI in the RO concentrate is negative 0 2 which indicates that the concentrate is 0 2 pH units below the point of calcium carbonate saturation A negative 0 2 LSI allows for pH excursions in actual plant operation A polymer based antiscalant can also be used to inhibit the precipitation of calcium carbonate Some antiscalant suppliers have claimed the efficacy of their product up to a positive LSI value of 2 5 in the RO concentrate through a more conservative design LSI level is 1 8 According to Reverse Osmosis A Practical Guide for Industrial Users Byrne LSI is es
85. troduction of chemical while maintaining a recirculation through the RO Cleaning Pump back to the tank Instrumentation Cleaning system instrumentation should be included to monitor flow temperature pressure and tank level Sample Points Sample valves should be located to allow pH and TDS measurements off the RO Cleaning Pump discharge and the concentrate side recirculation return line Permeate Return Line A small amount of the cleaning solution can permeate through the membranes and so a permeate side return line back to the RO Cleaning Tank is required IMPORTANT The permeate line and any permeate valves must always be open to atmospheric pressure during the cleaning and flushing steps or damage to RO elements can occur If the permeate line is closed the permeate pressure can build up and become higher than the feed side pressure of the tail elements This can result in excessive permeate back pressure which can damage the membrane glue lines in the tail elements Page 32 Maintenance RO Membrane Element Cleaning and Flushing Procedures The RO membrane elements can be cleaned in place in the pressure tubes by recirculating the cleaning solution across the high pressure side of the membrane at low pressure and relatively high flow A cleaning unit is needed to do this RO cleaning procedures may vary dependent on the situation The time required to clean a stage can take from 4 to 8 hours A general procedure for cleaning the RO me
86. ty is determined by a Nephelometer that measures the relative amount of light able to pass through a solution with the amount of light scattered at an angle of 90 degrees Turbidity is reported as NTU Nephelometric Turbidity Units Typical RO element warranties list a maximum of 1 0 NTU for the feed water Recovery R It defines how efficient the reverse osmosis system is on producing permeate clean water R the recovery is used to calculate the system s concentratting factor R permeate water gpm RO feed water in Salt Rejection SR The percentage of salt the RO feed water that is rejected by the reverse osmosis membrane SR 1 permeate water TDS feed water TDS x 100 Page 38 AdN Z L ONIHSM14 Oif GIONSIOS 301599 A3134838 dnd 35055338 9 6 AMIN3 GION310S 38019 Dad 5344 1933Y 2 1 3AWA Ke 33155359 Alddns 150 SINJ3NOdNWOO 151 SINJ3NOdNWOO 8 Wd Z 7 ONISNOH g 13uno 340SS3Nd ATddNS dd zvi avana LAN 2 1 3unssaud 1933Y 19 01 1 YBLINMOT TavisNray 3YNSS3 d 5 9 9 2 AYINI GIONTIOS AdN Z L Wd9 S S 1 4 1933Y BYNSSAYd YALIILSOd AdN 2 1 37033 3AWA D OCX v ONISNOH AdN 2 1 ONIHSNTS OLAV GION3
87. ys clean membranes prior to storing unit Membrane Replacement Membranes may require early replacement because of irreversible fouling Failure to clean on time or a foulant not previously defined will cause most problems Cleaning is based on the known contaminants that were found when the inlet water was tested It is important to know the cause of the problem to prevent future early membrane replacements Silica oil cationic surfactants polymers etc may be some of the probable culprits Operating Log data will be of great help to define the potential culprit Page 36 Glossary Brackish Water Brackish water is defined as a fresh low TDS water source that experiences a large increase in normal TDS due to seawater intrusion In regards to RO brackish water is defined as feed water with low to medium TDS levels up to 10 000 to 15 000 ppm that can be treated with a brackish RO element designed for 600 psi maximum applied feed pressure Concentrate Water Also known as brine reject or drain water It is the water that doesn t go through the semipermeable membrane and carries the concentrated ions to drain Concentrating Factor CF Is the number of times that the TDS of the RO feed water is concentrated in the reject water Where SR Salt Rejection and R Recovery CF SR 1 R Grains per gallon lon exchange and boiler water chemists report the concentration of hardness as Grains per Gallon as calcium carbonate equiv

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