Reverse Osmosis User’s Manual Model LT-200, LT-300 LT-300 Pictured
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Table of Contents INTRODUCTION....................................................................................................................................... 4 SAFETY .................................................................................................................................................... 4 FEED WATER & OPERATION SPECIFICATIONS .................................................................................. 5 REJECTION, RECOVERY, & FLOW RATES..............................
INTRODUCTION Your LT-Series system is a durable piece of equipment which, with proper care, will last for many years. This User’s Manual outlines installation, operation, 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 concentrate (waste) test results.
DO NOT UNDER ANY CIRCUMSTANCE; REMOVE ANY CAUTION, WARNING, OR OTHER DESCRIPTIVE LABELS FROM THE SYSTEM. FEED WATER & OPERATION SPECIFICATIONS Nothing has a greater effect on a reverse osmosis system than the feed water quality. NOTE: IT IS VERY IMPORTANT TO MEET THE MINIMUM FEED WATER REQUIREMENTS. FAILURE TO DO SO WILL CAUSE THE MEMBRANES TO FOUL AND VOID THE MANUFACTURER’S WARRANTY. OPERATING LIMITS NOTE: HIGHER TDS AND/OR LOWER TEMPERATURES WILL REDUCE THE SYSTEM’S PRODUCTION.
solids do not pass through the membrane. To calculate the % rejection, use the following formula: % Rejection = [(Feed TDS – Product TDS) / Feed TDS] x 100 Example: 98.5% = [(550-8.25)/550] x 100 NOTE: ALL TDS FIGURES MUST BE EXPRESSED IN THE SAME UNITS, TYPICALLY PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L). LT-Series reverse osmosis systems are designed to reject up to 98.5% NaCl, unless computer projections have been provided or stated otherwise.
NOTE: THE REVERSE OSMOSIS SYSTEM SHOULD BE INSTALLED INDOORS AND IT IS SUGGESTED THAT IT NOT BE IN DIRECT SUNLIGHT OR EXTREME COLD. 3. Connect the 3/8” or 1/4” tube fitting to an incoming water source. The minimum water pressure should be at least 30 psi. The system’s minimum operating pressure is 80 PSI, but the optimum operating pressure is 100 psi. NOTE: DO NOT OPERATE AT A PRESSURE EXCEEDING 125 PSI.
NOTE: ANY CHLORINE EXPOSURE WILL DAMAGE THE MEMBRANE PERMANENTLY. 9. This system has been factory wired and preset with a pressure switch at 20 - 40 psi, which is only to be used with a pressurized bladder tank. If using an atmospheric storage tank, a float switch will be required to turn the system ON and OFF. MEMBRANE ELEMENTS LT-Series reverse osmosis systems come pre-loaded with Thin Film Composite (TFC) HF4 High Flow Low Energy membranes, unless otherwise specified.
HF4-STANDARD ENGF-110 REV.
NF3-OPTIONAL ENGF-110 REV.
NF4-OPTIONAL ENGF-110 REV.
LT-200, LT-300 SYSTEM IDENTIFICATION FIGURE 1A NUMBER IDENTIFICATION 1. Solenoid Valve – Turns On/Off Feed Water 2. 5 Micron Sediment – Removes particulates 3. 10 Micron Carbon Block - Removes Chlorine 4. GAC Polishing- Removes Chlorine, odor and taste 5. RO Pump - Pressurizes RO System 6. Pressure Gauge – Measures Pump discharge pressure 7. Pressure Switch – Turns the Pump off at 40 PSI feed pressure 8. Permeate Check Valve – Protects membranes from back pressure 9.
FIGURE 1B FIGURE 1C ENGF-110 REV.
FIGURE 1D ENGF-110 REV.
LT-200 MEMBRANE FLOW DIAGRAM FIGURE 1E Note: Black arrows represent concentrate water and white arrows represent permeate water. ENGF-110 REV.
LT-300 MEMBRANE FLOW DIAGRAM FIGURE 1F Note: Black arrows represent concentrate water and white arrows represent permeate water. ENGF-110 REV.
DESIGN BASIS FOR LT-200, LT 300 WARNING: NEVER EXCEED THE MAXIMUM PRESSURE RATING OF YOUR SYSTEM. ENGF-110 REV.
OPERATING DO’s & DON’Ts DO: Change the cartridge filters regularly Monitor the system and keep a daily log Run the system, as much as possible, on a continuous basis. Always feed the pump with filtered water. DON’T Permit chlorine to enter or be present in the feed water. Shut down the system for extended periods. Operate the system with insufficient feed flow. Operate the pump dry. MAINTENANCE PROCEDURES 1.
NOTE: IF THE TDS OF THE FEED WATER EXCEEDS 1000 PPM OF NACL, A LARGER FLOW RESTRICTOR SHOULD BE USED TO EXTEND THE MEMBRANE LIFE. 4. It is important to maintain and/or replace the carbon block regularly since the Thin Film Composite membranes are chlorine sensitive. Irreversible damage will occur with any chlorine present in the feed water. For additional information please review the manufacturer’s membrane specification sheets. 5. The product line has a one way check valve installed.
MEMBRANE REMOVAL & REPLACEMENT Replacing membranes in the 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 membrane elements: WARNING: ALL PRESSURE GAUGES MUST READ ZERO BEFORE PROCEEDING. BEFORE ATTEMPTING, DISCONNECT THE POWER FROM THE SYSTEM AND BLEED ALL WATER PRESSURE FROM THE SYSTEM. 1. Remove the end caps from the top of the membrane housings.
THAT PROTRUDES ON ONE SIDE OF THE MEMBRANE AND IS ALWAYS ON THE FEED SIDE OF THE MEMBRANE ELEMENT. 1. Remove one membrane element at a time from the membrane element housings, from the top of the housing. Long nose pliers may be necessary to pull the old membrane element out of the membrane element housing. 2. Lubricate the brine seal with non petroleum based lubricant, Silicone DC 111. 3. Install the brine seal side of the membrane element first.
PREPARING UNIT FOR STORAGE OR 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 system may freeze, causing serious damage. Preparing system for storage: 1.
REVERSE OSMOSIS TROUBLESHOOTING SYMPTOMS Low Inlet Pressure Low Permeate Flow High permeate flow Poor permeate quality POSSIBLE CAUSES Low supply pressure Increase Inlet Pressure Cartridge filters plugged Change Filters Solenoid valve malfunction Replace Sol. Valve and/or Coil Motor may not be drawing correct current Use clamp-on amp meter to check the motor amp draw.
Permeate flow should be within 20% 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. NOTE: TO DETERMINE THE TEMPERATURE CORRECTION FACTOR, LOCATE THE TEMPERATURE CORRECTION TABLE IN THIS USER’S MANUAL AND FOLLOW THE DIRECTIONS ENGF-110 REV.
TEMPERATURE CORRECTION FACTORS FOR MEMBRANE Find the temperature correction factor (TCF) from the table below. Divide the rated permeate flow at 77°F by the temperature correction factor. The result is the permeate flow at the desired temperature. (See example on the next page) ENGF-110 REV.
If a system is rated to produce 5 gpm of permeate water @ 77˚ F. The same system will produce more water at a higher temperature. It will also produce less water at a lower temperature. Use the temperature correction table to obtain the correct flow. Example: 5 gpm @ 59˚ F (5÷1.42=3.52 gpm) 5 gpm @ 77˚ F (5÷1=5 gpm) 5 gpm @ 84˚ F (5÷0.89=5.62 gpm) SERVICE ASSISTANCE If service assistance is required, please complete the following process: Contact your local dealer or distributor.
OPERATION Company: Location: Week Of: System Serial #: ____________________ Date of StartUp: ___________________ ____________________ Date of Last Cleaning: ___________________ ____________________ ____________________ Date Time Hour of Operation Filter inlet pressure (psi) Filter outlet Pressure (psi) Concentrate Pressure (psi) Pump Discharge Pressure (psi) Feed Flow (gpm) Permeate Flow (gpm) Concentrate Flow (gpm) Recovery % Feed Temperature Feed TDS (ppm) Permeate TDS (ppm) Rejection % Feed PH P
DRAWINGS FIGURE 2 ENGF-110 REV.
FIGURE 3 ENGF-110 REV.
FIGURE 4 ENGF-110 REV.
LT-200 SYSTEM PART LIST Item No. Qty. Part No. Description 1………1………..200773……VALVE, SOLENOID, 3/8” BSP, 24V 2………1………..200621……CART, SEDIMENT, POLYPRO, 2.5”x 10”, 5MIC 3………1………..200658……CART, CARBON, BLOCK, 2.5”x 10”, 10MIC 4………1………..200668……CARTRIDGE, CARBON, GAC, 2.5”x 10” 5………3………..200719……HOUS, FILT, WHT/WHT, 2.5”x 10”, DBL O-RING 6………1………..200768……PUMP, BOOSTER, 8800, 3/8” QC, AQUATEC 7………1………..202436……GAUGE, BKM, NO FILL, 0-160PSI/BAR, 1.5” DIA 8………1………..
LT-300 SYSTEM PART LIST Item No. Qty. Part No. Description 1………1………..200773……VALVE, SOLENOID, 3/8” BSP, 24V 2………1………..200621……CART, SEDIMENT, POLYPRO, 2.5”x 10”, 5MIC 3………1………..200658……CART, CARBON, BLOCK, 2.5”x 10”, 10MIC 4………1………..200668……CARTRIDGE, CARBON, GAC, 2.5”x 10” 5………3………..200719……HOUS, FILT, WHT/WHT, 2.5”x 10”, DBL O-RING 6………2………..200768……PUMP, BOOSTER, 8800, 3/8” QC, AQUATEC 7………1………..202436……GAUGE, BKM, NO FILL, 0-160PSI/BAR, 1.5” DIA 8………1………..
LT-200 FLOW DIAGRAM ENGF-110 REV.
LT-300 FLOW DIAGRAM ENGF-110 REV.
ENGF-110 REV.
