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GE Merlin Installation And Maintenance Manual
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GE Merlin Installation And Maintenance Manual

GE Merlin Installation And Maintenance Manual

Point of use drinking water system
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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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Summary of Contents for GE Merlin

  • Page 1 GE Infrastructure Water and Process Technologies Merlin™ Point of Use Drinking Water System Installation and Maintenance Manual...
  • Page 2 Rev D...

  • Page 3: Safety Guides

    Product Data Sheet. The Merlin drinking water system does not have a monitoring device for contaminants. To verify that the system is performing satisfactorily the product water should be tested periodically by the system’s installing dealer every six months.
  • Page 4 Follow the instructions for replacement that are in this manual. • The faucet options for the Merlin RO have not been tested or certified by the Water Quality Association. It is recommended that faucets meeting National Codes be used.
  • Page 5 The reverse osmosis system is purchased as an installation kit. Two kit options are available: Merlin I, P/N 1255052 includes a faucet and air gap. Merlin II, P/N 1263870 does not include a faucet or air gap. Before starting installation check that the following components are...
  • Page 6 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.
  • Page 7 Drain Connection - Depending on plumbing codes, the waste water may need to go to drain through an anti-siphon air gap. A detachable faucet air gap is included with the system. If discharging into the utility sink or standpipe, an air gap of greater than 1.5 inches above the flood rim must be provided.
  • Page 8 Dispensing Faucet without Air Gap Note: If a flush tank is not installed the manifold connection must remain Product - 3/8" Blue plugged. Removal of plug will cause a system leak. Floor Carbon Postfilter Flush Tank (Optional) 1/4" Blue Feed Water Valve Cold Water Line Only Inlet-1/2"...

  • Page 9: Required Tools And Materials

    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.

  • Page 10: Step 3: Install Faucet

    STEP 2: INSTALL DRAIN ADAPTER Follow the instructions in the Appendix for installation of the Drain Boa™, if used. 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.

  • Page 11: Step 4: Make Tubing Connections

    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.
  • Page 12 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.
  • Page 13 Support Leg Manifold Figure 5 Merlin RO Assembly WARNING: Do not attempt to mount/hang the Merlin. Do not try to drill mounting holes anywhere on the system. If putting above ground/cabinet level, a sturdy, permanent shelf is recommended. THE BASIC REVERSE OSMOSIS SYSTEM...
  • Page 14 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.

  • Page 15: Step 6 System Startup

    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.
  • Page 16 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.
  • Page 17 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.
  • Page 18 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.
  • Page 19 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.
  • Page 20 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.
  • Page 21 APPENDIX APPENDIX Rev D...
  • Page 22 MERLIN COMPONENTS MERLIN COMPONENTS Rev D...
  • Page 23 MERLIN PARTS LIST Part Number Description 1255052 Complete Merlin I system (with faucet and air gap) 1263870 Complete Merlin II system (no faucet or air gap) 1239705 Sump - interchangeable for all 3 positions 1244617 Manifold - complete 1239708 Support Leg...
  • Page 24 ACCESSORIES Part Number Description 1261345 Merlin Flush Kit (Accumulator tank and 1/4-inch tubing) 1240619 1/4-inch Blue Tubing - 500 foot roll - John Guest Brand 1240632 Inlet Booster Pump, 110V/60Hz 1013501 Silicone Lubricant Pack 1240629 Feed Valve Tee - 1/2" x 1/2" x 1/2" OD Tubing - G.A. Murdock USA 1240630 Feed Valve Tee - 5/8"...
  • Page 25 1. Based on 50 psi (3.44 bar), 77°F (25°C), 750 mg/L NaCl, 23.7% Recovery 2. System is designed for use on potable water systems only. 3. Specifications based on GE Osmonics testing data. For complete WQA test results to ANSI/NSF 58 standard, see the Merlin Performance Data Sheet P/N 1263717.
  • Page 26 DIMENSIONS Rev D...
  • Page 27 System manufactured by: GE Infrastructure Water & Process Technologies 5730 N. Glen Park Road Milwaukee, WI 53209-4454 U.S.A. Direct spare parts and service inquiries to the system’s installing dealer. DIMENSIONS Rev D...
  • Page 28 Contact your installing dealer for spare parts or service: ©Copyright 2005 General Electric Company Printed in the USA P/N 1262366-Manual-Merlin Rev D...