Section 1: Introduction Thank you for choosing a BLS Reverse Osmosis System! Every BLS RO System incorporates years of experienced engineering, dedicated workmanship, and high-quality components. Each system is built with pride and ensures superior performance. We are confident you will find this system to have quick and simple installation, hassle-free maintenance, and years of reliable, trouble-free operation.
Section 2: Getting to Know Your BLS RO System It is important to familiarize yourself with your new BLS Reverse Osmosis System. Pictured below is a front and rear view of the system, with the main components identified. These components will be referenced throughout the manual.
Section 3: Background Information How Reverse Osmosis Works In the reverse osmosis process, water is forced under pressure through a semi- permeable membrane to reduce the dissolved mineral content of the water. The membrane allows water molecules to pass through, but blocks/hinders the passage of dissolved substances and suspended particles.
Section 4: System Specifications Operating Specifications Production Rates: 400 GPD (0.28 GPM)* Membrane Element: 2.5” x 21” (Qty: 1) – TFC Polyamide, High Flux Rejection Rate: 95-99% Recovery Rate: Nominal Flow of Feed Water During Operation: 0.56 GPM Nominal Flow of Feed Water During System Flush: 2.1 GPM Low Feed Water Pressure Switch: System shuts down at 15 PSI ~ System starts at 20 PSI...
Section 5: Installation Instructions Step 1: Unpack Your BLS RO System BLS Systems are carefully inspected, tested, and packaged. They are shipped in proper working order and in excellent condition. Remove the system from the shipping carton/container and inspect it for signs of concealed damage, which may have occurred during shipping.
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AN AIR GAP CONNECTION SHOULD BE INSTALLED TO PREVENT WASTEWATER BACK FLOW. Step 6: Electrical Connections A grounded electrical supply of the proper voltage for your system should be near the installation site. The system will be damaged if connected to a power source other than the voltage, phase and hertz that is specified. See the wiring diagram at the end of this manual for the correct power connections in the control enclosure.
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Step 10: John Guest Safety Locking Clips To ensure the highest level of reliability and system longevity, red locking clips have been installed on all John Guest tubing connections. This will make the connections more secure and protect the system from accidental disconnects. Two extra locking clips have been included with this manual.
Section 6: BLS RO System Controller BE SURE TO READ THE RO CONTROLLER SECTION CAREFULLY BEFORE ATTEMPTING TO OPERATE THIS BLS RO SYSTEM, AND BEFORE CHANGING ANY CONTROLLER SETTINGS. DO NOT ATTEMPT TO CHANGE ANY CONTROLLER SETTINGS WITHOUT CAREFULLY READING AND UNDERSTANDING THIS SECTION OF THE MANUAL. Every BLS Series model is equipped with a Reverse Osmosis System Controller.
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Controller Detail Program Selection The RO controller is pre-installed with 4 different “programs” that are user-selectable. See the diagram to the right for dip switch positions to change between programs. Each program has its own set of settings for how the BLS RO system will behave. The program settings are identical, except for variations in the flush behavior.
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Controller Specifications Inputs Tank Level Switch: (1) Normally-Closed RO Runs on switch closure Inlet Pressure Switch: Normally-Open. Switch opens on low pressure. Pretreat Lockout Switch: Normally-Open. Pretreat lockout is active with switch closure. IMPORTANT: All switch inputs are dry contacts. Voltage applied to inputs will damage the controller! Controller Power: 120/240 VAC, 60/50Hz (Range 96-264 VAC) Switching power supply automatically adjusts the supply voltage.
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Program Behavior Details Program 1: High Pressure Flush, Short Interval & Start-Up A high pressure flush occurs every 2 hours (120 minutes) of operation for 30 seconds. A 30 second high pressure flush will also occur at system start-up. The RO pump will run during high pressure flush cycles. Program 2: No Flush **FOR BLS 400-2400 STANDARD MODELS** All flush cycles are disabled.
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Program Parameters Explained Parameter Explanation Tank Full Switch Delay This specifies the time that the Product Water Pressure Switch must be closed or open (actuation and de-actuation) before the controller accepts it as a valid condition. The purpose is to prevent nuisance tripping of the RO system, especially in small or turbulent tanks.
Section 8: Start-Up Procedures Step 1: Installation Follow-Up 1. Visually inspect the water connections. 2. Be sure filter cartridges have been installed. 3. Confirm connection to the proper power source. NOTE: The membrane element(s) will have been installed in the system during the final testing procedures unless other arrangements have been made with the manufacturer.
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Step 7: Adjust System Pressure and Flow Rates NEVER ALLOW THE BLS RO SYSTEM PRESSURE TO EXCEED 185 PSI. The BLS 400-2400 RO systems were designed to operate at 50% recovery. This may vary depending on your feed water conditions and/or application.
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Step 10: Final Inspection Congratulations on the successful installation of your new BLS RO system! We hope it supplies you with many years of reliable operation and trouble-free maintenance. Once all start-up and installation procedures have been completed, please visually inspect all water connections and system readings for proper operation.
Section 9: Maintenance – Filter Cartridge Installation/Replacement UPON THE PURCHASE OF A NEW BLS RO SYSTEM, THE SEDIMENT FILTER CARTRIDGE HAS BEEN PACKAGED LOOSE INSIDE THE SYSTEM’S CARTON. IT MUST BE INSTALLED PRIOR TO START-UP. NOTE THAT THE MEMBRANE ELEMENT(S) HAVE BEEN PRE-INSTALLED BY THE MANUFACTURER DURING THE FINAL TESTING PROCEDURES, UNLESS OTHER ARRANGEMENTS HAVE BEEN MADE.
Section 10: Maintenance – Membrane Flush The Manual Flush Valve is only equipped on the Standard BLS models. It is recommended to open this valve at least once weekly for 5 to 10 minutes to help flush away buildup on the membrane elements. The duration and cycle of this flush can be adjusted based on varying feed water conditions and applications.
Section 11: Maintenance – System Pressure Switches Product Water Pressure Switch Inlet Low Pressure Switch System preset to cut OFF at product pressure above 45 PSI. System preset to cut OFF at inlet pressure below 15 PSI. System preset to cut ON at product pressure below 25 PSI. System preset to cut ON at inlet pressure above 20 PSI.
Section 12: Maintenance – Servicing the Membrane Elements NOTE: Determining how long membrane elements will last is BE SURE YOUR PRODUCT WATER LINE IS nearly impossible. Normally, replacement is necessary DISCONNECTED FROM YOUR STORAGE whenever the product water production decreases by 20% at TANK BEFORE RESTARTING THE SYSTEM.
Section 13: Maintenance – Sanitizing the System The following procedure is recommended for preventive maintenance. It is not intended to be effective in sanitizing highly contaminated systems that have been exposed to excessive amounts of bacteria, or systems that have foul-smelling membrane elements or filters.
BLS RO System Troubleshooting PROBLEM POSSIBLE CAUSE SOLUTION No electrical power Check power supply Storage tank full Drain portion of water out of tank RO SYSTEM WILL NOT START Low feed water pressure See LOW FEED PRESSURE Pump/motor malfunction Check, replace if necessary Pressure or float switch defective Check, replace if necessary Manual feed water valve not open...
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(system troubleshooting continued from last page) PROBLEM POSSIBLE CAUSE SOLUTION Increase in feed water TDS Check feed water TDS Filter cartridges exhausted Replace filter cartridges Replace filter cartridges and membrane, sanitize Tank and system contaminated system and tank BAD TASTING WATER Tank contaminated Re-sanitize tank Tank diaphragm ruptured...
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