Series N4000, N4500, N5000 Installation Operation and Maintenance Manual WATER FACTORY SYSTEMS® N4000, N4500, N5000 Reverse Osmosis (RO) Drinking Water Appliance 98-8807 0300 CUNO Incorporated 400 Research Parkway Meriden, CT 06450 Tele: (203) 237-5541 Fax: (203) 238-8701
Introduction This manual explains the installation and maintenance instructions for the water Factory Systems’ N4000, N54500, N5000 Series Reverse Osmosis (RO) Drinking Water Appliances. Please read each section of this manual carefully. The specific model chosen should be appropriate for the local water conditions and the customer’s needs. Check the Performance Data Sheet which specifies performance characteristics and the conditions of use.
Installation Instructions A. Determine System Location (Figure. 1&2) The appliance can be located under a sink or in a basement depending on space availability and the customer’s preference. If a basement installation is selected, additional tubing, hardware and fittings may be needed and a hole will have to be made from inside the cabinet, through the floor, to the basement. Never install in an area of the home where temperature is freezing as damage to the system will result.
B) Drill 3/16” hole at the desired location. To prevent shock hazard, use a battery operated drill. C) Turn valve handle clockwise to expose piercing lance beyond the rubber gasket no more than 3/16”. D) Assemble saddle valve on the supply pipe by screwing the two halves together. Use the “V” side of the bracket. Tighten screws evenly and firmly, keeping the two sides of the bracket parallel. E) Turn saddle valve handle clockwise to close valve. With a wrench, tighten nut/seal around stem.
The customer should be consulted before determining faucet location. The faucet should be positioned so that it empties into the sink and the spout swivels freely for convenience. If the sink already has a hole provided that can accommodate the RO faucet, then no drilling is required and you can proceed to the section on mounting the faucet. NOTE: With the customer’s permission, sprayers can be disconnected to provide a suitable hole for the RO faucet.
on air gap faucet. Push on firmly until it seats. E) Feed the air gap tubing and threaded nipple through sink/counter mounting hole and orient the faucet as discussed with the customer. F) From below sink/counter assemble the white spacer (open end up, open side toward air gap), flat washer and hex nut on threaded nipple and tighten by hand.
C) Connect yellow 1/4” tubing from purification assembly to storage tank. D) Route special red “SFC” tube from purification assembly module (factory made connection) toward faucet. Do not cut this special SFC tube. Its length is important to maintain proper efficiency and performance. E) Cut the standard green 1/4” tubing from faucet air gap and connect to 1/4” coupling fitting on the end of “SFC” tube. M.
C) Familiarize family members with the general operation of their new RO drinking water appliance. In particular, note the following: • The faucet handle positions, down for momentary flow, and up for continuous flow. Also, note the moveable spout. • The location of the feed valve and tank shut off valve as well as the procedure for turning them off. • Review the many uses of the water (cooking, soups, juices, ice cubes, baby formulas, pets, plants, etc.).
C) Connect 1/4" yellow tubing from purification assembly to storage tank. D) Route special red "SFC" tube from purification assembly module (factory made connection) to standard green 1/4" tubing from drain. Connect tubes with the 1/4" coupling fitting on the end of "SFC" tube. Problem: Causes: INSTALLATION TROUBLESHOOTING Solution: Problem: Leak at feed saddle valve. Cause: Not clamped tightly enough. Solution: Tighten saddle clamp screws evenly and firmly keeping both halves of the bracket parallel.
Problem: Cause: Solution: Problem: Cause: Solutions: internal flow path. Replace air gap module if necessary. Chlorine or other unpleasant taste/odor after initial tank filling. Residual preservative/sanitizer still in water. Drain and fill tank several times if necessary. Noise in drain ("gurgling" or "dribbling" sound). Reject water dripping into standing water in the drain trap.
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 of bracket with projections. For 7/16” - 1/2” OD tubing or rigid pipe use “V” side of bracket. Drain Connection Installation (Fig. 4) Drain Saddle Elbow Hole should be located on top of the pipe. Drain Saddle NEVER MOUNT HERE Mount drain saddle at either location.
Faucet Installation (Fig. 5) Air Gap Hole Chrome Base Plate Rubber Washer Slotted Washer Spacer Threaded Nipple Flat Washer 1/4” Standard Green Tubing Special Red “SFC” Tube From RO Hex Nut 3/8” Faucet Adapter Black 3/8” Reject Tubing To Drain Blue 1/4” Product Water Tubing Blue 1/4” Product Water Tubing How To Use ‘Push-In’ Connectors (Fig. 6) Push-In Tubing Connector This product is outfitted with user friendly "PushIn connectors. Proper use of the connectors is shown in the diagrams.
Operation And Maintenance I. Important Water Quality Assurance Requirements Reverse Osmosis drinking water appliances contain treatment components that are critical for effective reduction of Total Dissolved Solids as well as inorganic chemical contaminants. Water Factory Systems strongly recommends that the user test the water periodically (every six months minimum) to verify that the system is performing satisfactorily.
G) Turn on feed water and carefully check for leaks. Section IV. IV. RO Appliance Sanitization III. Replacing RO Membrane Module The life of the RO membrane depends on local water chemistry and proper maintenance, e.g., regular filter changes. Under typical conditions, the RO membrane life ranges from 18 months to three years. Unlike filter cartridges, membrane life is not determined by the amount of water used because of its self-cleaning feature.
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. (It should feel heavy.) F) The sanitizer should remain in the tank a minimum of 15 minutes. Turn off feed valve and tank valve. Disconnect the sanitizing device, reinstall the storage tank, and reconnect feed tubing.
