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Summary of Contents for Water Factory Systems N4000 Series
- Page 1 Series N4000, N4500, N5000 Installation Operation and Maintenance Manual WATER FACTORY SYSTEMS ® N4000, N4500, N5000 Reverse Osmosis (RO) Drinking Water Appliance CUNO Incorporated 400 Research Parkway 98-8807 0300 Meriden, CT 06450 Tele: (203) 237-5541 Fax: (203) 238-8701...
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Page 2: Table Of Contents
Important water quality assurance requirements Replacing the filter cartridges Replacing the RO membrane cartridge Sanitizing the RO appliance © 1995, CUNO/Water Factory Systems. All material herein may not be produced or copied in any manner without the expresse written consent of the publisher. -
Page 3: Installation Instructions
Installation Instructions Check that the air supply in the empty tank is approximately 7 psi. Adjust if necessary. A. Determine System Location (Figure. 1&2) If optional percent rejection monitor is selected, probes should be installed at this time. Follow instruc- The appliance can be located under a sink or tions that come with the monitor. -
Page 4: Prefill And Sanitize The Storage Tank
B) Drill 3/16” hole at the desired location. To prevent IMPORTANT: Some local plumbing codes may shock hazard, use a battery operated drill. prohibit the use of saddle-type drain connec- tions. See page 11 for further information. C) Turn valve handle clockwise to expose piercing lance beyond the rubber gasket no more than 3/16”. -
Page 5: Make The Faucet Mounting Hole
The customer should be consulted before determin- in this procedure. First, the glassy layer of porcelain ing faucet location. The faucet should be positioned must be penetrated through to the base metal. so that it empties into the sink and the spout swivels Second, a center disc of porcelain must be removed freely for convenience. -
Page 6: Make Initial Tubing Connections
on air gap faucet. Push on firmly until it seats. to the right or left sink cabinet sidewall, taking into consideration the space available and the tank loca- E) Feed the air gap tubing and threaded nipple tion. Generally, the tank is placed in the rear of the through sink/counter mounting hole and orient the sink cabinet while the purification assembly is posi- faucet as discussed with the customer. -
Page 7: Install The Icemaker Hookup (Optional)
C) Connect yellow 1/4” tubing from purification This is perfectly normal and is caused by air trapped assembly to storage tank. in the system. This will usually disappear within a short time. D) Route special red “SFC” tube from purification assembly module (factory made connection) toward O. -
Page 8: Appendix For Basement Installations
C) Familiarize family members with the general (9/16" wrench or deep socket) until faucet feels secure. operation of their new RO drinking water appliance. In particular, note the following: NOTE: Flats on chrome faucet may be used for tightening with an adjustable wrench. Use care not •... -
Page 9: Installation Troubleshooting
C) Connect 1/4" yellow tubing from purification bushing to remove valve. Clean out assembly to storage tank. obstruction or replace with new valve mechanism as necessary. D) Route special red "SFC" tube from purification Problem: No steady drip from open faucet after assembly module (factory made connection) to stan- tank is drained. - Page 10 internal flow path. Replace air gap module if necessary. Problem: Chlorine or other unpleasant taste/odor after initial tank filling. Cause: Residual preservative/sanitizer still in water. Solution: Drain and fill tank several times if necessary. Problem: Noise in drain ("gurgling" or "dribbling" sound). Cause: Reject water dripping into standing water in the drain trap.
- Page 11 Feed Water Valve Installation (Fig. 3) (Important: See note on state requirements below.) Insert Nut/Seal Plastic Sleeve Compression Nut Piercing Lance 1/4” Orange Feed Water Tubing For 3/8” OD tubing use side For 7/16” - 1/2” OD tubing or rigid pipe use “V” side of bracket. of bracket with projections.
- Page 12 Faucet Installation (Fig. 5) Air Gap Hole Chrome Base Plate Rubber Washer Slotted Washer 1/4” Standard Spacer Green Tubing Threaded Nipple Flat Washer Special Red Hex Nut “SFC” Tube From RO 3/8” Faucet Adapter Black 3/8” Reject Blue 1/4” Product Tubing To Drain Water Tubing Blue 1/4”...
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Page 13: Operation And Maintenance
Operation And When To Replace Carbon Prefilter Maintenance (4500 and 5000 Series Only) The carbon prefilter removes free chlorine from the feedwater supply to protect the TFCM membrane from I. Important Water Quality Assurance chlorine attack. To find out the chlorine level in a Requirements water supply, the water should be tested for free chlo- rine or call the public water supplier. - Page 14 G) Turn on feed water and carefully check for Section IV. leaks. IV. RO Appliance Sanitization III. Replacing RO Membrane Module To assure the highest quality water from your Water The life of the RO membrane depends on local Factor RO drinking water appliance, it is important to water chemistry and proper maintenance, e.g., regu- routinely sanitize both the storage tank and the purifi- lar filter changes.
- Page 15 Standard 2.5 gallon tank - 1/2 teaspoon (3 ml) Alternate size tanks -1/2 teaspoon (3 ml) per 2.5 gallons of tank capacity. E) Turn on the feed water valve to force water and sanitizer into the tank. Allow about three minutes of fill time for a standard 2.5 gallon tank.