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

GE Merlin Installation And Maintenance Manual

Reverse osmosis system
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Merlin
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Reverse Osmosis System by GE
Installation and Maintenance Manual

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Summary of Contents for GE Merlin

  • Page 1 Merlin ® Reverse Osmosis System by GE Installation and Maintenance Manual...
  • Page 2 Rev J...
  • Page 3 Product Data Sheet. The Merlin Reverse Osmosis 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 or a certified laboratory, 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 Sediment w/ faucet 3002041 Included Included Included Included Sediment w/o faucet 3002044 Included Included Included Light commercial 3002043 Included Included *Includes all "Standard" components. **See Performance Data Sheet included with Merlin for Certification Information. THE BASIC REVERSE OSMOSIS SYSTEM Rev J...
  • 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. The RO product water faucet installs on the sink or on the countertop next to the sink.
  • Page 7 RO Manifold Assembly: The manifold can be installed on either the right or left side of the under-sink area or cabinet. Installation in the basement is also an option. One possible location is near the laundry/utility sink where cold potable water and drain access are close.
  • Page 8 Dispensing Faucet without Air Gap Product - 3/8" Blue Keep to Minimum Floor Note: If a flush tank is not installed the manifold Carbon Postfilter connection must remain plugged. Removal of plug will cause a system leak. Feed Water Valve Cold Water Line Only Inlet-1/2"...
  • Page 9 Note: If a flush tank is not installed the manifold connection must remain plugged. Removal of plug will cause a system leak. Feed Pressure Gauge Feed Water Valve Cold Water Line Only Feed Solenoid Valve External Prefilter Inlet-1/2" Natural Drain - 3/8" Black RO Assembly 1.5"...
  • Page 10 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 11 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 12 B. Assemble Faucet The tubing and fasteners are assembled to the faucet before the faucet is placed in position. This can be done above the sink. Slide the decorative ring over the tubing connections and up to the bottom of the faucet.
  • Page 13 Collet Lock Clip Tubing Collet O-Ring NOTE: Make sure the tubing is pushed past the O-Ring O-rings for a secure fit. Also, when replacing any tubing, cut tubing back ~1/4 inch prior to re-inserting to prevent leaks. Figure 5 Side View and Cutaway of Tubing Fitting NOTE: For optimal system performance, we recommend using tubing lengths that are as short as possible.
  • Page 14 The supplied pressure gauge can be connected to the feed line to monitor system feed pressure. For proper system performance, the dynamic feed pressure must be between 40 psi (2.76 bar) and 80 psi (5.52 bar) when the Merlin is in operation. CAUTION: The feed pressure gauge is intended for use only during installation and troubleshooting of the RO system.
  • Page 15 Support Leg Manifold Figure 6 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. Recommended Placement Positions Locking Bar The Merlin assembly should be positioned in one of two ways.
  • Page 16 Connector Symbol Connection Tubing Color Flushing (optional) Blue Feed-Inlet Natural Concentrate Black Product Blue WARNING: Be sure to lubricate the O-rings on the fitting elbows with silicone lubricant, prior to inserting into manifold. WARNING: Do not turn the incoming water valve on until the locking bar is in place.
  • Page 17 STEP 6: SYSTEM STARTUP Inspect all connections. If the flush tank is not installed, the 1/4-inch port on the manifold must be plugged. Position manifold horizontal with openings facing up. Remove new membrane elements from plastic packaging. The black and yellow tapes surrounding the membrane are an important part of the membrane element and should not be removed.
  • Page 18 TO CARE FOR THE RO SYSTEM The components of the RO system are designed to function with minimal maintenance. However, the membrane elements and filters will need to be replaced on a regular schedule. Run the system for at least two minutes each day for optimal performance. REPLACEMENT OF PREFILTER AND POSTFILTER The carbon/sediment prefilter reduces sediment and certain chemicals, such as chlorine, from the water.
  • Page 19 Remove the support leg from the three sumps and unscrew the top sump as shown to access the prefilter element. The support leg functions as a wrench to loosen the sump, Figure 7. Figure 8 NOTE: There is no need to disconnect tubing from fittings on the manifold.
  • Page 20 D. Securely insert O-ring end of elements into manifold. See Figure 8. E. Replace sumps and tighten until it bottoms out. NOTE: The system should be sanitized whenever a membrane element or filter is replaced. Sanitize the system. A. The manifold should be positioned flat with the sump connections facing up.
  • Page 21 12. Re-position the assembly and turn the water supply on. Check the system for any leaks. CAUTION: When the faucet is opened, water may sputter from the air gap until the trapped air is purged. 13. Open the faucet and run water for two minutes. NOTE: Carbon fines may be present until the postfilter element is flushed out.
  • Page 22 APPENDIX APPENDIX Rev J...
  • Page 23 MERLIN - COMPLETE SYSTEMS * See Merlin Components for configuration details. Part Number Description 1239705 Sump - interchangeable for all 3 positions 1244617 Manifold - complete 1239708 Support Leg 1240564 Drain Boa Kit 1240620 3/8-inch Black Tubing - 500 foot roll - John Guest Brand...
  • Page 24 1/4-inch JG Plug - John Guest PN P10808S John Guest USA 1240625 Faucet Connection Fitting - John Guest PN CI3212U7S John Guest USA 1268260 Merlin Flush Kit (8L RO Storage Tank, 1/4-inch Tubing, Tank Fitting) RO Tank Supplier ACCESSORIES Rev J...
  • Page 25 DIMENSIONS DIMENSIONS Rev J...

  • Page 26: Troubleshooting

    B. System air lock. B. Install Merlin postfilter or ASO cartridge in product line to relieve air lock. C. Leak in product line. C. Find and repair leak. Install pressure gauge in product line to help identify a product pressure leak.
  • Page 27 Rev J...
  • Page 28 System manufactured by: Pentair Residential Filtration, LLC 5730 N. Glen Park Road Milwaukee, WI 53209-4454 U.S.A. Direct spare parts and service inquiries to the system’s installing dealer. Contact your installing dealer for spare parts or service: ©2010 Pentair Residential Filtration, LLC P/N 1262366 Rev J SE10...

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