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E4H SERIES
WATER PURIFICATION MACHINES
OPERATION AND
MAINTENANCE MANUAL
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OPERATION AND MAINTENANCE MANUAL FOR GE OSMONICS E4H SERIES WATER PURIFICATION MACHINES TABLE OF CONTENTS Page 1.0 DESCRIPTION ......................................................................................................... 1 1.1 General Information and Principles of Operation ......................................... 1 1.2 Machine Nomenclature.................................................................................. 4 1.3 Machine Permeate Quality ...............................
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Page 3.0 PREPARATION AND START-UP ............................................................................ 12 3.1 Pretreatment for Water Purification............................................................... 12 3.2 Start-Up.......................................................................................................... 12 4.0 OPERATION AND MAINTENANCE ..................................................................... 18 4.1 Daily Log Sheets...................................
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Page LIST OF FIGURES 1 Normal Versus Cross Flow Filtration .................................... 1 2 Membrane Element with Interconnectors.............................. 2 3 Cross Sectional View of Membrane Element........................ 2 4 Principles of Operation.......................................................... 3 LIST OF TABLES 1.1 Feed Water Requirements ...................................................... 7 1.2 Typical Membrane Element Rejections/Passages.................. 9 3.3 Ma
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1.0 DESCRIPTION 1.1 General Information and Principles of Operation Your E-Series reverse osmosis (RO) machine is a durable piece of equipment which, with proper care, will last for many years. These instructions give operating and maintenance details vital to the sustained performance of the machine. Reverse osmosis is the separation of one component of a solution from another component by means of pressures exerted on a semipermeable membrane element. Removal of ionic, organ- ic and suspende
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Figure 1.2 - Membrane Element with Interconnectors Figure 1.3 Cross Sectional View of Membrane Element 2
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Some operating definitions are provided to help you further understand your machine: Permeate Rate [Product Water Rate (Q )] is the flow rate of purified water which has p passed through the membrane element and out of the membrane element housing; expressed in gal/min (gpm) or gal/hr (gph) [in metric, liter/min (Lpm) or cubic 3 meters/hour (m /h)]. Specified permeate rates are normally at 77ºF (25ºC). Concentrate Rate [Waste Water Rate (Q )] is the flow rate of water containing reject- c 3 ed
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Given the system case in Figure 1.4 (Principles of Operation): Average Concentration (C ) = (Cf) 100 mg/L + (Cc) 146.9 mg/L avg 2 (C ) = 123.5 mg/L TDS avg Rejection = (Cavg) 123.5 - (Cp) 6.2 x 100 = 95% (C ) 123.5 avg Passage = (Cp) = 6.2 x 100 = 5.0% (C ) = 123.5 avg Recovery = (Qp) 2 gpm x 100 = 33% (Q ) 6 gpm f Flow Description - The feed water passes through a replaceable 5-micron cartridge pre-filter which removes bulk suspended solids. Filtered water then flows to the inlet con- t
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Example: E4H-21K/ECN, 230, 6, 50-75 • E4H indicates the machine series • H indicates horizontal membrane element housing configuration • 21K indicates the rated permeate flow in thousands of gallons per day @ 77ºF (25ºC),(i.e., 21K = 21,000 gallons per day) • ECN indicates Economy Model and DLX indicates the Deluxe Model • 230 indicates 230 VAC, three-phase voltage to starter • 6 indicates 60 Hz operation, whereas 5 indicates 50 Hz operation • 50 - 75 indicates 50% to 75% recovery 1.3 Machine Pe
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• Digital concentrate and permeate flow meters • Digital conductivity monitor, panel-mounted, for permeate quality monitor- ing • Autoflush System - programmable, automated high-velocity membrane ele- ment flushing for the longest membrane element life; set at the factory and adjustable in the field • Gauges, valves and rigid piping of stainless steel or plastic • Membrane element housings, all 304 stainless steel (SS), with Noryl end caps • 316 SS concentrate and recycle valves • All components
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• Alarms included: low inlet pressure, high amp draw, high / low pH 1.5 Specifications for E-Series Machines 1.5.1 Feed Water Requirements Table 1.1 Feed Water Requirements Temperature 35° - 77°F (2° - 25°C) Not to exceed 85°F (29°C) unless specifically designed for higher temperatures Inlet Pressure Minimum: 30 psig (2.1 barg) Maximum: 60 psig (4.1 barg) Chlorine For Osmo HR(PA) membrane ele- (continuous feed) ments: 0 ppm Operating pH Soft water [less than 1 grain per gal- lon: 3.0 - 10.0 (
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1.5.3 Concentrate Flow Rate Factory set as stated on serial number label Concentrate Outlet: 1-inch FNPT 1.5.4 Typical Pure Water Recovery: 50 - 75% 1.5.5 Final Operating Pressure Minimum: 200 psig (13.8 barg) Maximum: 235 psig (16.2 barg) 1.5.6 Pump Multi-stage centrifugal, approximate primary operating pressure of 190 psig (13.1 barg), excluding line pressure. 1.5.7 Reverse Osmosis Membrane Element Rejection Osmo HR(PA) Typical Ionic Rejection (TDS) 95 - 98% Average Molecular Weight Cutoff* 1
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Figure 1.2 Typical Membrane Element Rejections/Passages To estimate passage of salts for membrane elements other than SEPA- SALTS HR, take the passage for the SEPA-HR and multiply by the factor for the CATIONS passage for the particular membrane element. The factors are: Percent Maximum SEPA-SR is 1.6 times SEPA-HR passage Percent Passage Concentration SEPA-PR is 2.5 times SEPA-HR passage Name Symbol Rejection (Avg) Percent Operation of the SEPA-HR membrane element at pressures over 400 psig +
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2.0 INSTALLATION 2.1 Mounting E4H machines are equipped with a stand alone frame, 61-inch (155-cm) H x 132-inch (335 cm) W x 34-inch (86 cm) D, which supports the machine. At least 45 inches (114 cm) of space should be allowed on each end of the membrane element housings for removal and loading of membrane elements. If 45-inches (114 cm) are not available, the entire membrane element housing may need to be removed for membrane element changes. 2.2 Piping 2.2.1 Inlet Piping The feed water sour
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2.2.4 Permeate Outlet Connection Install the CIP valve on the permeate outlet tee. The pure water (permeate) should be transported to the point of use via non-corroding-type tubing, pipe, or hose. Examples are: food-grade flexible nylon tubing, stainless steel tubing, or PVC hose. The permeate outlet is 1-inch FNPT. 2.3 Electrical The DLX and ECN E-Series models are supplied with a single-phase, 110 VAC 60 Hz or 220 VAC 50 Hz control circuit and 8-foot cord which plugs into a three-prong gro
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3.0 PREPARATION AND START-UP 3.1 Pretreatment for Water Purification All systems will operate most efficiently on filtered water with a pH of less than 6.5 and a Silt Density Index (SDI) of 5 or below. If the machine is operated on higher pH water, other forms of pretreatment may be necessary. A water analysis prior to start-up of the machine is required. To minimize the chances of calcium carbonate, calcium sulfate, or other salt precipitation on the membrane, GE Osmonics evaluates each appl
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STEPS 1. Re-check the function and integrity of your pretreatment equipment. Ensure that your water softener, activated carbon filters and iron filters (where applicable) have been leak-checked, backwashed, and thoroughly rinsed for service before starting up your RO unit. 2. Attach the feed water pipe to the inlet of the machine. 3. Check for leaks at all connection points. 4. Turn ON the feed water gradually and check for leaks in the inlet piping. No flow should go through the machine while t
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inlet stream to the RO pump. It is important to balance the operating pres- sure and the respective flows of these valves to ensure that your machine is operating correctly. It is also important to understand the relationship of these two valves, the pressure gauge, and your RO pump. The pump has a fixed amount of flow produced, and the valves are the control devices to distribute this fixed flow amount. The pressure gauge is an indicator of applied membrane element pressure, at the flows set b
