2500 User Manual
Contents
1. Shock dosage of Sodium Bi Sulfate Continuous Bacteria count Io afa Bi Sulfate at Normal to Normal to Biological and reiect reduced pH Moderate Decreased Moderate Any Stage 9 lee Formaldehyde Fouling Slime in pipes ae Increase Increase disinfection and pressure e u Chlorination vessels and de chlorination Replace cartridge filters Activated Decreased or Organic Destructive ha aia Slightly Decreased Normal Any Stage ga Element p ER Fouling Clean with high Increased Testing pH cleaner Check Chlorine Chlorine E feed equipment A Analysis of feed Most Severe in Chlorine and de Increased Increased Decreased nA A water AA First Stage Oxidation chlorination Destructive system element test Microscopic improve Abrasion of solids analveis pretreatment Most Severe in membrane by y Check all filters Increased Increased Decreased of feed A First Stage Crystalline y for media A Destructive Material leakage element test Replace O O Ring Leaks Prone Jag Rings Repair Normal to Vacuum test Increased Decreased At Random End or Side A or replace Increased Colloidal Seal Leaks elements material test Check Flows Reduce the Increased Normal to Low Decreased At Random Recovery To and Fressure recovery rate High Against Design Guidelines Calibrate and or add sensors 15 Operation Log Week Of System Serial Date of Start Up Date of La2. recovery concentrates nearly all impuritites 1 5 times A system operating at a 50 recovery concentrates nearly all impurities 2 times If the feed water contains a slightly soluble material such as calcium sulfate silica or colloidal clay an anti scalant should be used CAUTION Any restrictions or blockage in the drain can cause backpressure which will increase the system s operating pressure This can result in damage to the system s components Electrical The motors used on the Tethys 500 1000 1500 1800 8 2500 systems are carbonator motors They are available in single phase 110 volt or 220 volt at 50 or 60 hertz Please ensure that the electrical circuit supplying the system is compatible with the requirments of the specific Tethys model NOTE We recommend that a licensed electrician install your system in accordance with local and national electrical codes WARNING To reduce the risk of electrical shock the incoming power supply must include a protective earth ground Each Tethys system is equipped with an 7 foot electrical cord All 110 volt system s are provied with a 3 prong plug for use in a standard North American household outlet receptacle All 220 volt 50 hertz models may require the replacement of the standard plug to fit certain receptacles Pre Filtration Tethys systems are supplied with a polypropylene pre filter that filters out most particles over 5 microns and a carbon block that removes chlorine be
3. 15 Grains Gallon pH Range 3 11 Max TDS 2000 ppm Max Temperature 105 F Thin Film Composite TFC Membranes Test Conditions Permeate flow and salt rejection based on 2000 ppm NaCl 150 psi 77 F 25 C pH 7 and recovery as indicated NOTE Higher TDS and or lower temperatures will reduce the system s production Start Up Unless otherwise indicated these instructions cover the Tethys 500 1000 1500 1800 amp 2500 reverse osmosis systems Please refer to the flow diagrams and exploded view diagrams found in this User s Manual for additional information Installation The Tethys reverse osmosis systems are free standing and require no special installation however if placed on an uneven floor the system may vibrate If this occurs place the system on a rubber mat to reduce the vibrations Carefully inspect your system before start up Check all plumbing and electrical connections Connections may have come loose during shipment A User s Manual Test Results and Filter Housing Wrench will accompany your Tethys reverse osmosis system Start Up 1 Locate the feed water inlet on the pre filter housing 2 Attach the inlet tubing to the feed water source or permanently plumb the feed water piping or tubing to the inlet Always maintain a smooth and sufficient flow of feed water during operation 3 Locate the permeate tubing 4 Attach the permeate tubing to the permeate outlet Make sure that the permeate water can
4. 24 75 1 025 1 036 E zgr Y F pa 1 000 1 000 4 26 79 0 988 0 966 ede 81 0 976 0 933 28 82 0 964 0 902 29 84 0 953 0 871 30 85 0 942 0 842 sl gs 0 930 0 814 32 90 0 919 0 788 33 91 0 908 0 762 34 93 0 898 0 737 35 95 0 887 0 713 36 BI 0 876 0 691 sr pa 0 865 0 669 38 100 0 854 0 647 39 102 0 843 0 627 40 104 0 831 0 607 41 106 0 819 0 589 42 108 0 806 0 570 43 109 0 793 0 553 44 111 0 779 0 536 45 113 0 765 0 520 To use Simply multiply the actual flux to obtain temperature corrected flux Service Assistance If service assistance is required take the following steps 1 Call your distributor a Prior to making the call have the following information available i Machine installation date ii Serial number found on left hand side of front panel iii Daily Log Sheets iv Current operating parameters i e flow operating pressures pH etc v Detailed description of problem Warranty amp Guarantee The manufacturer of your Tethys reverse osmosis system guarantees that the proposed product is to be free from defects in material or workmanship when operated in accordance with written instructions for a period of one year from start up or fifteen months from receipt whichever is shorter Parts that are not manufactured directly by the manufacturer of your reverse osmosis system will be covered by their manufacturer s warranties which are nor
5. flow freely and that there is no backpressure Backpressure can cause damage to the membrane CAUTION The plumbing in the permeate line can contaminate the high quality water produced by the system ensure that the components are compatible with the application The pH of the reverse osmosis permeate will normally be 1 2 points lower than the feed water pH A pH of 6 5 or lower can be very aggressive to some plumbing materials such as copper piping 5 Locate the concentrate waste tubing Locate the concentrate outlet on the drain side of the concentrate control valve 6 Attach the drain line to the concentrate tubing 7 Run the concentrate line to the drain Water must be allowed to run freely without any restrictions or blockage in the drain line Make sure that no backpressure exists on the concentrate line 8 Ensure that the electrical power requirements of the Tethys system match your electrical power supply 9 Tethys systems are typically controlled with a liquid level switch in a storage tank The liquid level switch turns the system on when the water level in the tank drops and off when the tank is full If your reverse osmosis system is equipped with an electrical control box the level control is connected to the level control connections in the control box Do not exceed the level control s power rating Liquid level switches can be obtained by your local dealer or distributor If a liquid level switch is to be used ins
6. membrane elements 1 Remove the end caps from the top of the membrane housings This is done by removing the white Nylon snap ring of the Champ housing or unscrewing the bolts of the PuroTech housing which holds on the clamp 2 Remove the membrane bag containing the membrane element from the shipping box 3 Cut the bag open as close as possible to the seal at the end of the bag so the bag may be re used if necessary 4 Remove the membrane element from the bag and remove the black core tube protectors from each end of the membrane 5 Remove parts from the parts container if included and inspect Make sure that all parts are clean and free from dirt Examine the brine seal and permeate tube for nicks or cuts Replace the O rings or brine seal if damaged 6 Flow directions should be observed for installation of each element in each housing As time progresses the efficiency of the membrane will be reduced In general the salt rejection does not change significantly until two or three years after installation when operated on properly pretreated feed water The permeate flow rate will begin to decline slightly after one year of operation but can be extended with diligent flushing and cleaning of the system A high pH and or precipitation of hardness can cause premature loss in rejection of membrane elements in the system To replace the membrane elements 1 Remove all of the membrane element s from the membrane element housing
7. operation speicifications These specifications should be met in order to have the reverse osmosis system perform optimally All operation specifications are based on the test conditions listed below Operation Specifications Min Feed Pressure 35 psi Max Pressure 150 psi Min NaCl Rejection 96 Max NaCl Rejection 98 Min Feed GPM 1 5 Max Feed GPM 3 Max Hardness 15 Grains Gallon pH Range 3 11 Max TDS 2000 ppm Max Temperature 105 F Test Conditions Permeate flow and salt rejection based on 2000 ppm NaCl 150 psi 77 F 25 C pH 7 and recovery as indicated NOTE Higher TDS and or lower temperatures will reduce the system s production Rejection Recovery amp Flow Rates Tethys reverse osmosis systems are designed to produce purified water at the capacities indicated by the suffix in the system s name under the conditions listed above For example the Tethys 2500 produces 2500 gallons per day of purified water The amount of total dissolved solids TDS rejected by the membrane is expressed as a percentage For example a 99 rejection rate means that 99 of total dissolved solids do not pass through the membrane To calculate the rejection use the following formula Rejection Feed TDS Product TDS Feed TDS x 100 NOTE All TDS figures must be expressed in the same units usually parts per million ppm or milligrams per liter mg l Tethys commercial reverse osmosis systems are designed to rej
8. protection circuit level control connections pre treat lockout connections and an on off switch The low pressure shut off switch can be ordered with manual or automatic reset Pump Bypass Valve This valve is installed as a standard feature on the Tethys 500 1000 1500 amp 2500 reverse osmosis systems It provides an adjustment for pump pressure which will vary as the required system pressure changes 401 Rotary Vane Pump Pressure 100 psi 200 psi Flow 140 gph 134 gph 601 Rotary Vane Pump Pressure 100 psi 200 psi Flow 196 gph 190 gph 1001 Rotary Vane Pump Pressure 100 psi 200 psi Flow 322 gph NA gph As the feed water temperature decreases and or the feed water TDS increases the system will require a higher operating pressure to produce the specified permeate flow A Tethys system installed in Florida may provide the specified permeate flow of 1 74 gpm at 150 psi however the same system installed in Maine much colder feed water may require 190 psi to produce the same amount of permeate The system in Florida would have a higher concentrate flow to the drain because of the lower operating pressure which would result in poor system recovery Rejection Feed TDS Product TDS Feed TDS x 100 Membrane Removal amp Replacement Changing membranes in pressure vessels is an easy process if you have the proper information and tools at hand Please refer to the following instructions when removing and replacing
9. 0 Tethys 2500 Design Vertical Vertical Vertical Vertical Vertical Gallons Per Day 500 1000 1500 1800 2500 USS 13 5 x 20 x 26 5 13 5 x 20 x 26 5 197x23 x45 5 19x23 x45 5 19 x 23 x 45 5 approx Weight approx 65 lbs 70 Ibs 105 lbs 85 lbs 115 lbs Recycle Line Optional Optional Optional Yes Optional Auto Flush NA NA NA NA NA Element Size in 2521 TFC HF 3 2521 TFC HF 3 2540 TFC HF 3 4040 TFC HF 3 2540 TFC HF 3 Elements qty 2 3 2 1 3 Motor HP 1 3 1 2 3 4 3 4 3 4 Voltage 110 220 110 220 110 220 110 220 110 220 Hertz 50 60 50 60 50 60 50 60 50 60 Feed Connection Ya Ya Ya Y Y a yy yy Y yy yy onnection Waste Connection Y Y Y Y Feed Water amp Operation Specifications Nothing has a greater effect on a reverse osmosis system than the feed water quality For lasting performance it is important to supply the system with the feed water quality shown below It is also important to feed the system the required amount of feed water NOTE It is very important to meet the feed water requirements Failure to do so will cause the membranes to foul and void the warranty Feed Water Specifications Hardness lt 1 grain Hydrogen Sulfide 0 ppm Free Chlorine 0 ppm Manganese lt 0 05 ppm Total Dissolved Solids lt 2000 ppm Organics lt 1 ppm Turbidity SDI lt 5 Temperature 40 F 80 F pH 3 11 8 C 27 C Iron lt 0 01 ppm Pressure 20 60 psi Silica lt 1 ppm Flow Rate 3 gpm The manufacurer has provided you with
10. Reverse Osmosis User s Manual Models Tethys 500 1000 1500 1800 amp 2500 PURfx Pure thoughts crys tal clear res O Table of Contents INTRODUCTION E mg a la E alt ae oe erie a atl 3 SAPS n AREE E AEE eta sate sem deta cae ida ade 3 LADO o a aloe he 4 System Specific OS msi E eee 4 Feed Water amp Operation Specifications oononniciccnnnnicicinnococonccnncnnnnnnnoncnnnnnnnnnnnnnnonnnncn cnn nnnnnnnnnnnnnnnnnannnnes 4 Rejection Recovery 8 Flow Rates eccccccceceeeeeseecneeaeeeeeeeeesegeaeaeeeceeeeesesaeaeceeeeseeesaseneaeeeeeeeseeensenaees 5 System Requirements amp Operation Guidelines oooooconinncocncnnnonccinonononccnnnnncnnnnnnonnnnnnnnnnnnnnnnnnnnnnnncniannnnns 5 PIUMDING E aa E A AAA A 5 Electrical iaa teria Ses tare ie Seat ra eat i ait em ng atea aia des 6 Pre Filtrationiss an a E Ii Pa UI at laden ote 6 PUM Dt ii Us sinar vetr Rg UI Ata de 6 MORE siss saa aloe vet ati vaste ede a ee aii aia een eth ode rado 6 Membrane Elements 2 tet cicnei toni casters ce foe E A a tee ested Ola ned Senne ene Saye ee 6 SN RS aah hh Se 7 installation Sertrans nee a daa 7 O a NO 7 Operation amp Maintenance ynasin at ere Meena eairt aai ede e a a ea a Eade 8 Pre Filter Pressure GaUugesS avecina tot an a gf GA 8 eee 9 Product Permeate Flow Meter amp Waste Concentrate Flow Meter oooonnccccnnnnoccnonnaccccnnnonccnnnanncnnns 9 Waste Recycle ValVe almenaii id ech mae A ias 9 Low Pressure SWItCM es ien
11. a e on Seen desl e a ae das a deste aa a E ih see 9 Low Pressure Shut Off Control Box oooocccccccoconcononoconcncconnnononononnnnnnnnnnnnnncnnnnnnn nano nn nn nnnnnnnnannnnnnnnnnnninnmes 9 Pump B pass ValVe cia AA A ae En Ga ie 9 Membrane Removal amp Replacement ooocoocococccccccccccononnonononnnnnnnnnnnnnconnnnnnnnnnnnn nr cnnnnnnnannnnnnnnnnnnnnnnanns 10 Fl shinigsthesSyst nn iis shades aa da a anio AR R R a AAA fara 11 Draining the System for SHOME eiai aeia NAE RAEE EEI E OAI REEE 11 Troues hoo iid ae riaa a E E AET EEA GA EE EE T OR AEAT 12 Low System Pressure aior naar EE E EE a EI AEN AAA IAE OTN 12 Abnormal Permeate O A 13 Reverse Osmosis System Troubleshooting oooooccccinonccccnnoncccnononcccnnnnoncncnn nn nc cn canon cnc naar nn nn nn nnn nn cn naar ncncnnns 15 Operation Logoa coa alle ita shacazagiacdawlentecssthents 16 Temperature Guide uti is ta a i eee 17 SEMNICS ASSISTANMCO tess ta ea ees ni di ti do 18 Warranty GUATE umi td dE id 18 A Dh oe a a a sa kra ON 20 introduction Your Tethys commercial reverse osmosis system is a durable piece of equipment which with proper care will last for many years This User s Manual outlines installation operating maintenance and troubleshooting details vital to the sustained performance of your system The test results which are included with this User s Manual indicate your system s permeate product and rejection test results Your system is designed to ope
12. ch pro rated charges will be based on the list price prevailing at the time of warranty consideration Anew membrane element supplied under warranty terms will carry the standard 12 month new membrane element warranty If a membrane element is to be returned for warranty inspection the User must obtain a Return Good Authorization RGA number from their dealer or distributor before returning the membrane elements Completely fill out a Return Merchandise Form which will accompany the returned good Membrane elements are to be returned freight prepaid to the manufacturer The manufacturer will return any warranty replacement membrane elements to the customer prepaid Membrane elements must be kept damp at all times and must be clean and bagged in a watertight bag before returning Only the manufactured approved cleaners biocides dispersants or other chemicals may be used with the membrane elements Use of other chemicals may void the warranty The User is responsible for knowing the membrane element material and for ensuring that chemicals harmful to the membrane element are never in contact with the membrane elements 18 It is the obligation of the User to maintain frequent operating data records The manufacturer may request these records in the warranty evaluation The User must notify their dealer or distributor at the very first sign of changes in operation of the system or membrane elements Such notification should be in writing and should i
13. ect up to 98 NaCl unless computer projections have been run and provide a different rejection percentage The amount of purified water recovered for use is expressed as a percentage recovery To calculate recovery use the following formula Recovery Product Water Flow Rate Feed Water Flow Rate x 100 NOTE All Flow Rates must be expressed in the same units usually gallons per minute gpm Tethys commercial reverse osmosis systems are designed to have a recovery of 33 50 unless computer projections have been run and provide a different recovery percentage System Requirements amp Operation Guidelines Plumbing The membranes and high pressure pumps used on Tethys systems require a continous and non turbulent flow of water to the system with a minimum feed pressure of 35 psi which does not exceed a temperature of 105 F The tubing or piping used for the inlet of the concentrate is NPT The tubing or piping used for the discharge of the concentrate is NPT and should be run to an open drain in a free and unrestricted manner The tubing or piping used for the permeate is NPT and can be transported to the holding tank or directly to the point of use through a high quality nylon tubing or PVC pipe or other FDA accepted materials Material must not precipitate in the system Be certain that all of the components of the feed water are soluble at the concentrations attained in the system A system operating at 33
14. ection factor locate the Temperature Correction Table in this User s Manual and follow the directions 1 Causes of Low Permeate Flow Cold Feed Water Low Operating Pressure Defective Membrane Brine Seal Fouled or Scaled Membrane 2 Causes of High Permeate Flow Defective Product Tube O Rings Defective or Oxidized Membrane 3 Causes of Poor Permeate Quality Low Operating Pressure Defective Product Tube O Rings Defective or Oxidized Membrane Fouled or Scaled Membrane 13 14 Reverse Osmosis System Troubleshooting Symptoms Possible are Corrective L ion Verification Salt Passage Permeate Flow Pressure Drop ao Causes ernicatio Action Improve Analysis of pretreatment to Normal to Decreased Normal to Predominately Metal Oxide Metal lons in remove metals Increased Increased First Stage Fouling Cleaning Clean with Acid Solution Cleaners Optimize pretreatment for SDI colloid removal Normal to Predominately Colloidal ceri Increased Decreased Increased First Stage Fouling Measurement Clean with high of Feed Water pH anionic cleaners Analysis of Increase acid metal ions in addition and cleaning antiscalant Scaling solution by dosage for increased Decreased Increased Predominately CaSO4 checking LSI of CaVO3 and First Stage CaSO3 reject Calculate CaCO4 BaS04 SiO2 max solubility Reduce of CaSO4 recovery Clean BaSO4 SiO2 in with Acid reject Cleaners
15. eed the maximum pressure rating of your membrane or pressure vessel NOTE The Tethys 500 1000 1500 1800 8 2500 reverse osmosis systems are equipped with a concentrate control valve This valve is used to adjust the system to the desired recovery Feed water enters the system through an automatic shut off valve Ensure that the valve opens when the system turns on allowing water to flow through the system and close when the system turns off stopping the water from flowing through the system This will save water and prevent premature fouling of the reverse osmosis membrane Operation 8 Maintenance The reverse osmosis process causes the concentration of impuritites in the concentrate stream to increase The impurities may precipitate come out of the solution when their concentration reaches saturation levels NOTE Precipitation can scale or foul membranes and must be prevented Check your feed water chemistry Pre treat the water and or reduce the system recovery as required If necessary consult with your local dealer or distributor Pre Filter Pressure Gauges These gauges measure the feed water pressure when it enters and exits the pre filter housing A pressure differential of 15 or more on the two pressure readings indicates that the pre filter needs to be replaced For example if the inlet pressure is 40 psi the filter should be changed when the outlet pressure is 34 psi or below Product Permeate Flow Meter amp Waste Co
16. em may freeze causing serious damage The party shipping or storing the system is responsible for any damage resulting from freezing To drain the system 1 Disconnect the inlet concentrate pre filter and permeate plumbing 2 Drain all water from the pre filter cartridge housings by unscrewing the housings removing the pre filter cartridges and drain the water from the housings 11 Disconnect the tubing from the connector on the permeate and concentrate inlets and outlets 4 Fully open the concentrate valve 5 Drain the flow meters by disconnecting the tubing from the bottom fitting of each meter 6 Allow the system to drain for a minimum of eight hours or until the opened ports quit dripping 7 After draining is complete reconnect all of the plumbing Troubleshooting If the system production declines or the system stops working check the mechanical components for any visual problems Listed below are the items to check for any visual problems Listed below are the items to check for two of the most commonly encountered problem conditions Low system pressure and abnormal permeate flow Also refer to the reverse osmosis troubleshooting matrix on the next page Low System Pressure Low system pressure occurs when sufficient feed water pressure and flow are not obtained This causes the high pressure reverse osmosis pump to cavitate Failure to provide the proper feed will result in lower system pressure that may result in low pr
17. fore the water is pumped through the reverse osmosis membrane Change the cartridges at least every month or whenever there is a pressure difference of 15 or more between the pressure readings before and after the filter NOTE The system must be operated on filtered water only Do not attempt to clean used filter cartridges CAUTION If the pre filter becomes clogged and the water flow to the pump is reduced or interrupted cavitation will occur This will damage the pump Pump The pumps used on the Tethys 500 1000 1500 1800 amp 2500 systems are brass rotary vane pumps These pumps are also available in stainless steel Follow these guidelines to ensure proper operation of the pump The pump must NEVER be run dry Operating the pump without sufficient feed water will damage the pump ALWAYS feed the pump with filtered water The pump is susceptible to damage from sediment and debris Mounting The free standing system should be bolted down in compliance to local regulation standards It has a lightweight and portable design for a variety of applications Membrane Elements Tethys reverse osmosis systems come preloaded with Thin Film Composite High Flow membranes General membrane element performance characteristics are listed below Membrane Element Characteristics Min Working Pressure 100 psi Max Pressure 400 psi Min NaCl Rejection 96 Max NaCl Rejection 98 Min Feed GPM 1 5 Max Feed GPM 3 Max Hardness
18. mally for one year The manufacturers membrane elements are guaranteed to operate within specifications when used for general water treatment for a period of 12 months from receipt providing the membrane elements have not been abused by operating at high temperatures high or low pH s on un disinfected water or on solutions which tend to precipitate For applications or water conditions other than those specified in the original purchase order for the reverse osmosis system the User should consult with their local dealer or distributor to access the suitability of the solution to be run in the membrane elements Limitations on pH and temperature can vary with membrane element type and the application of the equipment For special applications or for pH or temperature ranges outside the stated limits the manufacturer may reduce the warranty period at their discretion A membrane element which fails to perform satisfactorily within the first 90 days after receipt has not been mishandled and is returned to the factory will be replaced free of charge except for freight and local labor If a membrane element fails to perform satisfactorily during the balance of the warranty period and with the return of the membrane element to the factory the manufacturer will replace the membrane element with a new membrane element and will charge the User for the portion of the 12 months that the membrane element was used plus incoming freight and local labor Su
19. mbrane element housings were disassembled 9 To Start Up the system refer to Start Up CAUTION New or factory cleaned membranes are shipped in a preservative solution New or cleaned membranes must be flushed for at least 1 hour to remove the preservative from the membrane Discard all of the permeate and concentrate which is produced during the flush Flushing the System The system should be flushed weekly to remove sediment from the surface of the membranes To manually flush the system following the preceding steps 1 The system must be running during the flushing procedure 2 Open the concentrate valve until the pressure gauge reads approximately 50 psi 3 5 bar NOTE If pressure will not drop to approximately 50 psi 3 5 bar pressure during flushing the concentrate valve must be cleaned 3 Allow the system to run for 10 to 20 minutes 4 After 10 to 20 minutes close the concentrate valve to its previous position raising the operating pressure to 150 psi Ensure the proper concentrate flow rate is going to the drain 5 The system is now ready to operate Draining the System for Shipment Prior to shipping or storing your system the system should be cleaned with an appropriate cleaner flushed with water and protected from biological attack with an appropriate solution for membrane elements The membrane housing s and plumbing lines of the system must be completely drained Any water remaining in the plumbing of a syst
20. ncentrate Flow Meter These flow meters indicate the flow rates of permeate and concentrate water The measurements when added together also indicate the feed water flow rate if the system is not equipped with a waste recycle Permeate and Concentrate flow meters are optional Tethys 500 1000 1500 amp 2500 and come standard on the Tethys 1800 systems Waste Recycle Valve This valve allows you to recycle some of the concentrate water back to the feed of the pump This will increase the recovery of the Tethys system The amount of waste water recycled is limited by the TDS of the feed water The drawback of using concentrate recirculate is an increase of total dissolved solids in the permeate water A waste recycle valve is optional for Tethys 500 1000 1500 amp 2500 systems and come standard on the Tethys 1800 systems CAUTION Excessive recycling may cause premature fouling or scaling of the membrane elements Low Pressure Switch The low pressure switch shuts off the system when the feed water pressure drops too low for the system to function properly This prevents damage to the pump The system restarts automatically when the pressure is restored If you notice the pressure fluctuating and the system cycling off and on repeatedly turn the system off and ensure that proper feed flow and pressure are available to the system Low Pressure Shut Off Control Box This feature consists of an electrical control box with a low pressure
21. nclude all data requested on the operating log sheets To obtain a copy of the manufacturer s warranty for their systems and terms and conditions please contact your local dealer and distributor 19 Notes 20
22. oduction and poor rejection Check the following components 1 Pump Isolate the pump and determine how much pressure can be achieved This can be determined by checking the pump discharge pressure gauge at this point If the system is not equipped with this gauge disconnect the hose that runs from the pump to the pressure vessel Install a pressure gauge The pressure of the pump must reach at least 190 psi when the flow is restricted Pre Filter Check the differential in the pre filter gauges to determine if the filter needs to be replaced If the system is not equipped with these gauges examine the pre filter cartridge to make sure that it is not clogged and does not restrict feed flow to the pump Replace if necessary Low Feed Water Flow Rate Determine that the system is getting a sufficient volume of feed water Disconnect the feed water hose from the system and place it in a one gallon bucket Measure the time it takes to fill the bucket to determine the feed flow Feed flow is measured in gallons per minute so divide 1 gallon by the time in minutes to obtain the flow rate Refer to the System Specifications for the required feed flow Inlet Solenoid Valve Feed water enters the system through an automatic solenoid shut off valve which is normally closed Ensure that the solenoid opens when the reverse osmosis pump starts The system can be operated without the solenoid for troubleshooting Remove the solenoid to see if i
23. rate at a pressure of 150 psi unless otherwise stated The recovery set for your system is between 33 50 If your system is altered at the site of operation or if the feed water conditions change please contact your local dealer or distributor to determine the proper recovery for your application NOTE In order to maintain warranty an operating log must be maintained Copies must be sent to your local dealer or distributor for review NOTE Prior to operating or servicing the Tethys commercial reverse osmosis system this User s Manual must be read and fully understood Keep it and other associated information for future reference and for new operators or qualified personnel near the system Safety The Safety section of this User s Manual outlines the various safety headings used throughout this manual s text and are enhanced and defined below NOTE Indicates statements that provide further information and clarification CAUTION Indicates statements that are used to identify conditions or practices that could result in equipment or other property damage WARNING Indicates statements that are used to identify conditions or practices that could result in injury or loss of life FAILURE TO FOLLOW WARNINGS COULD RESULT IN SERIOUS INJURY OR EVEN DEATH Labeling Do not under any circumstance remove any Caution Warning or other descriptive label from the system System Specifications Tethys 500 Tethys 1000 Tethys 1500 Tethys 180
24. s from the top of the housing Heavy duty pliers and channel lock pliers may be necessary to pull the old membrane element out of the membrane element housing 2 Install the brine seal side of the membrane elements first When the housings have a direction of flow from bottom to top the brine seal should be located on the end of the membrane element at the bottom of the housing 3 Lubricate the brine seal with a food grade lubricant 4 Ata slight angle insert membrane while slightly rotating element being careful not to tear or flip the brine seal Re lube the brine seal if necessary 10 5 With a smooth and constant motion push the membrane element into the housing so that the brine seal enters the housing without coming out of the brine seal groove A slow twisting motion should be used to insert the membrane element to ensure that the brine seal stays in place 6 Re install the end caps by gently twisting the end cap while pushing it onto the housing Ensure that you do not pinch or fatigue any O rings while pushing the end plug on Push the end plug on until the outer diameter of the plug is flush with the outer diameter of the membrane housing 7 Insert nylon snap ring until fully seated Snap ring must be able to be spun in place if fully seated If you are using a stainless steel housing Install the clamps halves and tighten bolts until the clamp halves meet 8 Reconnect any fittings that may have been disconnected when the me
25. st Cleaning Cleaning Formulation Date Time Hours of Operation Cartridge Filter Inlet Pressure psi Differential Pressure psi Permeate Pressure psi Feed Pressure psi Concentrate Pressure psi Differential Pressure psi Pump Discharge Pressure psi Permeate Flow GPM Concentrate Flow GPM eed Flow GPM Recovery eed Temperature Feed Conductivity mg L Permeate Conductivity mg L Rejection eed pH Permeate pH Scale Inhibitor Feed ppm Acid Feed ppm Sodium Bisulfite Feed ppm Feed Water Iron mg L Free Chlorine mg L Hardness ppm CaCO3 Turbidity NTU TEMPERATURE GUIDE Temperature Guide PUR Temperature Correction Factors For Membrane Flux Ei rs c bd Cellulose Acetate Triacetate Blend Thin Film Composite 1 o 35 1 861 2 487 35 1 813 2 387 37 1 765 2 291 4 39 1 720 2 200 5 41 1 675 2 114 6 43 1 632 2 031 a 4s 1 590 1 952 8 46 1 548 1 876 9 48 1 507 1 804 10 50 1 468 1 736 MIE 52 1 429 1 670 12 54 1 391 1 607 13 55 1 355 1 547 14 57 1 320 1 490 15 sg 1 286 1 435 16 61 1 253 1 383 Lia 63 1 221 1 332 18 54 1 190 1 284 66 1 160 1 238 20 68 1 132 1 194 21 70 1 104 1 152 22 72 1 076 1 112 23 73 1 050 1 073
26. t is contributing to the problem Normally cleaning the solenoid diaphragm will correct any malfunction of the solenoid Electric 12 Check to ensure that there are no electrical fuses blown and that all electrical connections are secure Use a voltmeter to verify that the motor is getting sufficient power 6 Pressure Gauge Check for foreign matter on the gauge fitting Remove any visible matter and replace the fitting Verify that the tube is not pushed too far inside the fitting This could restrict flow and cause an inaccurate display If the fitting and tube are fine and the pressure gauge is still malfunctioning the gauge should be replaced 7 Concentrate Control Valve The concentrate control valve may have a tear in the diaphragm Remove the valve inspect the diaphragm and replace if necessary 8 Motor The motor may not be drawing the correct current Use a clamp on amp meter to check the current draw 9 Leaks Check the system for leaks as this can result in low pressure Abnormal Permeate Flow Permeate flow should be within 15 of the rated production after correcting the feed water temperatures above or below 77 F Check your permeate flow meter to determine the permeate flow rate If the system does not have a permeate flow meter measure the time it takes to fill a 1 gallon container then calculate the permeate flow rate at gallons per minute or gallons per day NOTE To determine the temperature corr
27. tall it at this time and turn the power to the Tethys system on Otherwise turn the system on by plugging in the power cord Allow the system to run for about three to five minutes with the concentrate control valve fully open to purge air from the system 10 The Tethys system s permeate or product water should be discarded for the first hour of operation This will flush out any impurities which are in the system Turn the concentrate control valve until the concentrate pressure gauge indicates a pressure of 50 psi Flush the system at 50 psi for 1 hour to remove the impurities from the system Check for leaks All Tethys reverse osmosis systems are fully tested prior to shipment but leaks may occur due to shipping 11 Connect the permeate line to the storage tank or point of use application Make sure that no backpressure exists on the permeate line 12 Locate the concentrate control valve and the concentrate pressure gauge 13 Turn the concentrate control valve until the designated permeate flow is acquired For example a Tethys 2500 should be adjusted until it produces about 2500 GPD or 1 74 GPM of permeate or product water The concentrate pressure will increase as the concentrate control valve is closed The exact operating pressure may vary depending on the temperature and TDS of your feed water lt may be necessary to re adjust the system if there is a major change in feed water temperature and or TDS GPM GPD 1440 WARNING Never exc
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