USF RO ManualOMRX_6.pdf

More documents

Recommendations

Info

RX Manual 04/04 Rev. 6 INTRODUCTION 1.0 INTRODUCTION Congratulations on your selection of this USFilter water purification system. This system is designed and manufactured to the highest standard of quality and fully tested and inspected prior to shipment. In order to get maximum performance, we ask you to read all of the following instructions before installing and operating this system. Any warranty offered will be void unless directions are followed exactly. This manual is divided into sections for easy reference. Review this manual thoroughly and then return to section 2.0 System Installation for step-by-step installation instructions. If you need technical assistance in operating or maintaining your USFilter unit, call your local representative. If you require further assistance call USFilter, Technical Support Department at the phone number provided on the cover of this manual. 1.1 SYSTEM FUNCTION The function of a Reverse Osmosis (RO) system is to remove contaminants from a water supply using a Reverse Osmosis (RO) membrane. The system produces purified water that is low in inorganic salts, organic matter and bacteria. The purified water can be used as a direct feed to a distribution system or stored in a reservoir. RO systems operate on the principle of passing water through the membrane under high-pressure. Some of the water passes through the membrane and is purified (product or permeate), the remainder of the water containing the impurities (concentrate or reject) is not passed through the membrane and is diverted to drain. In addition, portions of the product and reject are returned (product and reject recirc or recirculation) upstream of the pump to improve the operation and productivity of the RO system. A single prefilter is used in all systems to reduce the amount of particulate contamination reaching the membranes. Please refer to the Product Description/Equipment Specifications in the Appendix for other parameters important to the operation of the system. 1.2 QUALITY ASSURANCE/QUALITY CONTROL At USFilter we have defined Quality Assurance and Quality Control into a series of engineering and manufacturing practices and control procedures to insure that you, our customer, receive the finest product available in the world. We will continue to update these practices and procedures on an ongoing basis in an effort to improve our systems and to insure that they continue to reflect state-of-the-art technology and reliability. Quality assurance is the cornerstone of our quality program. It begins with the selection and qualification of components and materials. Before suppliers are selected, their products must meet or exceed rigid standards set by our Quality Assurance Department. From that point, our incoming material inspection insures only reliable components will be used to manufacture systems. Numerous checks are performed as the system passes through the manufacturing process. The completed system must pass a series of tests before release for shipment to insure the system meets technical and performance specifications. In the Appendix is a copy of our Quality Assurance Data Report for your system. Quality audits do not improve products. They do, however, insure that each system meets or exceeds specifications required for your application. USFilter 1-1
RX Manual 04/04 Rev. 6 INTRODUCTION Customer feedback is also an important element of our program. Division heads meet on a routine basis to review customer feedback and initiate actions that result in process and product improvements. 1.3 FUNCTIONS OF THE SYSTEM COMPONENTS Refer to the Process & Instrumentation Diagram (P&ID) in the Appendix. A. Low Feed Pressure Switch A low feed pressure switch protects the high-pressure pump. If the feed pressure to the pump falls below 15 psig the low feed pressure switch shuts the system down. The system will automatically restart four more times and if the low pressure situation has not been corrected after the fifth restart the system will remain shut down and will not restart until the alarm condition has been acknowledged and rectified. B. Reverse Osmosis Pump The RO system pump is a multiple stage centrifugal pump that is close coupled to an AC motor. The motor is a TEFC design and powered on and off through the controller by a motor starter. C. High Membrane Feed Pressure Switch A high membrane feed pressure switch protects the membranes and RO pressure vessels from potentially damaging pressures. If the membrane pressure exceeds the safe operating pressure for the pressure vessels and/or membranes, the high-pressure switch shuts the system down and requires operator intervention prior to restart. D. Reverse Osmosis Membranes The prefiltered water enters the RO pressure vessel and passes over the surface of an RO membrane. A portion of the feed water continues out of the system through the reject and reject-recycle needle valves; and is either directed to drain or just upstream of the pump to increase the feed flow rate. The remainder of the water permeates the membrane (product) and is directed to an accessory storage reservoir or point of use. Percent recovery (the ratio of RO product water to feedwater) will vary depending on water quality and the application. E. Reject / Reject Recirculation Throttle Valves The flow rates of water exiting the RO membranes are controlled by the reject and reject recirculation valves. Closing the reject valve increases the pressure to the membranes and reduces the amount of water to drain. Recycling a portion of the reject water permits part of the total reject flow to be returned upstream of the pump and can improve RO performance and production. Reject recirculation can be used to increase the overall recovery of the system up to the scaling limit. F. Product Recirculation Valve Product recirculation permits excess product water to be returned upstream of the pump. This function is used when capacity exceeds demand, thus conserving water and increasing percent rejection (water quality). USFilter 1-2
Page 1 and 2: USFilter 10 Technology Drive Lowell
Page 3 and 4: applications. A warning alarm indic
Page 5 and 6: TABLE OF CONTENTS SECTION DESCRIPTI
Page 7: For Product and Service Information
Page 11 and 12: RX Manual 04/04 Rev. 6 INTRODUCTION
Page 13 and 14: RX Manual 04/04 Rev. 6 SYSTEM INSTA
Page 15 and 16: RX Manual 04/04 Rev. 6 SYSTEM INSTA
Page 17 and 18: RX Manual 04/04 Rev. 6 OPERATING IN
Page 19 and 20: RX Manual 04/04 Rev. 6 OPERATING IN
Page 21 and 22: RX Manual 04/04 Rev. 6 SYSTEM MAINT
Page 31 and 32: RX Manual 04/04 Rev. 6 TROUBLESHOOT
Page 33 and 34: RX Manual 04/04 Rev. 6 TROUBLESHOOT
Page 35 and 36: RX Manual 04/04 Rev. 6 WARRANTY 6.1
Page 37 and 38: RX Manual 04/04 Rev. 6 APPENDIX 7.1
Page 39 and 40: RX Manual 04/04 Rev. 6 APPENDIX 04/
Page 41 and 42: RX Manual 04/04 Rev. 6 APPENDIX Cal
Page 43 and 44: RX Manual 04/04 Rev. 6 APPENDIX 7.4
Page 45: RX Manual 04/04 Rev. 6 APPENDIX 7.6

USF RO ManualOMRX_6.pdf

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?