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GE Infrastructure
Water and Process Technologies
Merlin™
Point of Use
Drinking Water System
Installation and Maintenance Manual
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SAFETY GUIDES Read and follow all steps and guides carefully before installing and using your reverse osmosis system. Do not use this product to make safe drinking water from non-potable water sources. Do not use the system on microbiologically unsafe water, or water of unknown quality without adequate disinfection before or after the system. This reverse osmosis system contains replaceable components (membrane elements). These components are critical for the effective reduction of tota
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THE BASIC REVERSE OSMOSIS SYSTEM Your Merlin™ Reverse Osmosis (RO) Drinking Water System is a water treatment unit. It uses water pressure to reverse a natural physical process called osmosis. Water, under pressure, is forced through a semi-permeable membrane to filter out minerals and impurities. Clean drinking water goes to the faucet. Minerals and impurities are sent to the drain with RO waste water. The system includes replaceable filters and membrane elements. The prefilter removes sa
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REVERSE OSMOSIS PACKAGE The reverse osmosis system is purchased as an installation kit. Before starting installation check that the following components are available: Quantity Item Part Number 1 Manifold 1244617 1 Support Leg 1239708 1 Locking Bar 1239731 1 Disconnect Elbow and O-ring—Flush Mechanism 1240119 1 1/4-inch Collet Lock Clip 1240626 1 1/4-inch Plug 1240624 1 Disconnect Elbow and O-ring— Feed Water 1240117 2 1/2-inch Collet Lock Clip 1240628 1 Disconnect Elbow and O-ring—Concentra
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LOCATION OF SYSTEM The reverse osmosis system is designed for installation under a sink, usually in the kitchen or bathroom. The RO assembly can be placed on the cabinet floor in any position that does not apply pressure on the disconnect elbows. The RO product water faucet installs on the sink or on the countertop next to the sink. The RO system can also be located in a location away from the faucet. A nearby water source and drain point are required. NOTE: Keep the lengths of tubing shor
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REQUIRED TOOLS AND MATERIALS • Adjustable wrench, and larger adjustable jaw pliers or pipe wrench to fit sink drain • Saw for cutting drain pipe • Slotted and Phillips head screwdrivers • Tubing cutters • Electric drill and bits for cutting the faucet mounting hole Note that some sinks will have a pre-drilled hole with a plug for the faucet. INSTALLATION STEP 1: Install cold water supply valve STEP 2: Install drain adapter STEP 3: Install faucet STEP 4: Make tubing connections STEP 5: In
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STEP 2: INSTALL DRAIN ADAPTER Follow the instructions in the Appendix for installation of the Drain Boa™. The drain adapter is designed to fit 1-1/2-inch (3.8 cm) sink drain pipe. The adapter installs directly to the sink tailpiece. STEP 3: INSTALL FAUCET A. Prepare Mounting Hole 1. Select a location for the faucet. Be sure it will fit flat against the sink or counter and that there is space underneath for tubing. 2. If drilling is needed, make a 1-1/8-inch to 1-1/4-inch diameter hole. WAR
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B. Assemble Faucet The tubing and fasteners are assembled to the faucet before the faucet is placed in position. If not using the air gap module, skip to step #3. 1. If the air gap feature is used, place the gasket in position on the faucet. 2. Add the air gap module. 3. Slide the decorative ring over the tubing connections and up to the bottom of the faucet. 4. Slide the standoff onto the threaded tube, followed by the standard washer and nut. 5. Screw the threaded hose connector on the
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Collet Lock CLip Tubing Collet O-Ring NOTE: Make sure the tubing is pushed past the O-rings O-Ring for a secure fit. Also, when replacing any tubing, cut tubing back ~1/4 inch prior to re-inserting to prevent leaks. Figure 4 Side View and Cutaway of Tubing Fitting NOTE: For optimal system performance, we recommend using tubing lengths that are as short as possible. Postfilter Install the postfilter inline with the blue permeate tubing. Secure tubing with collet lock clips. Drain Adapt
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Recommended Placement Positions Locking Bar The Merlin assembly should be positioned in one of two ways. The first position is with the unit standing upright using the support leg with the sumps horizontal. The tubing is directed to provide the best fit. The second position, sets the unit on end so the manifold is horizontal and the sumps are pointing up. The tubing is directed upward and the locking bar is down to lock the tubing connections. First Position See illustrations at left. The t
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When all of the connections have been made, use the locking bar to hold the fittings in position. Match the symbols on the locking bar to the corresponding symbols on the manifold. Symbols Figure 6 Locking Bar STEP 6 SYSTEM STARTUP 1. Inspect all connections. 2. If the flush tank is not installed, the 1/4-inch port on the manifold must be plugged. 3. Position manifold horizontal with openings facing up. 4. Remove new membrane elements from packaging. CAUTION: Elements contain a foodgrade
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3. Check for leaks. NOTE: When the faucet is initially turned on, water may temporarily sputter from the air gap until the air is purged. Allow 1 to 3 hours for any trapped air noise in the system to subside. 4. Purge the system. Open the faucet and run the water through the RO system for one hour. NOTE: The one hour flush removes a food grade preservative from the membrane elements. It is not harmful but may affect the taste of the water. The RO system is now ready for use. TO CA
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REPLACEMENT OF THE PREFILTER, POSTFILTER, AND RO MEMBRANE ELEMENTS 1. Turn off the water supply to the RO System. 2. Reduce system water pressure by opening the faucet. CAUTION: Even with the water supply turned off the membrane and prefilter sumps will contain a considerable amount of water. By positioning the RO assembly in a sink or tub, most of the water will be contained. 3. Disconnect locking bar and place the fittings (with tubing still connected) into a tub or bucket. 4. Move
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6. Remove exhausted prefilter and discard. CAUTION: The person handling the filters and membrane elements must have clean hands to keep the system sanitized. The use of sterile/latex gloves is recommended. 7. If Changing Membrane Elements: A. Remove membrane sumps. Remove and discard used elements. B. Remove new elements from packaging. CAUTION: Elements contain a foodgrade preservative. The use of sterile/latex gloves is highly recommended. C. Lubricate element O-rings, brine seals, and
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B. Pour a tablespoon (15 milliliters) of chlorine bleach into the center opening of the prefilter sump connection. See Figure 8. 9. Install prefilter. A. Remove new prefilter from packaging. Ensure gaskets are secure. Insert prefilter into proper opening on manifold. B. Lubricate sump O-ring with silicone lubricant. C. With the prefilter element in place, screw the sump into the connection. Do not overtighten. NOTE: The sumps are sealed using an O-Ring. Tighten by hand. If any leaks
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16. Check for any system leaks. NOTE: If the two RO membrane elements were replaced the system should be flushed for one hour. This flush removes the food grade preservative from the elements. The preservative is not harmful but may affect the taste of the water. The RO system is now ready for use. REPLACEMENT OF THE PREFILTER, POSTFILTER, AND RO MEMBRANE ELEMENTS 19 Rev B
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APPENDIX 20 APPENDIX Rev B
