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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.

The Water Factory Systems’ undercounter RO drinking water appliances are designed to connect per-

manently to a home plumbing system. To ensure the installation conforms to your state and local plumbing
codes, it is recommended that the installation be performed by a qualified specialist for RO drinking water
appliances or a licensed plumber. Failure to install as instructed will VOID the warranty.

Caution: The RO membrane cartridge is shipped with a preservative solution inside. Make sure to
flush it thoroughly as directed before first use. 

Table Of Contents

Installation Instructions

A.

Determine the appliance location

B.

Prepare the area for installation

C.

Prepare the appliance for installation

D.

Install the feed water valve and tubing

E.

Prefill and sanitize the storage tank

F

. Install the drain connection

G.

Install the faucet

H.

Make the faucet mounting hole

I.

Mount the faucet

J.

Make initial tubing connections

K.

Install purification assembly and storage tank

L.

Make final tubing connections

M.

Install the icemaker hookup (optional)

N.

Start up the system

O.

Flush system of preservative and check operation

P.

Cleanup, paperwork, and customer orientation

Appendix for basement installations
Installation troubleshooting
Installation diagrams, (Figures 1-6)

Operation & Maintenance Instructions

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.

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Summary of Contents for N4000 Series

Page 1: ...allation Operation and Maintenance Manual WATER FACTORY SYSTEMS N4000 N4500 N5000 Reverse Osmosis RO Drinking Water Appliance CUNO Incorporated 400 Research Parkway Meriden CT 06450 Tele 203 237 5541...

Page 2: ...nside Make sure to flush it thoroughly as directed before first use Table Of Contents Installation Instructions A Determine the appliance location B Prepare the area for installation C Prepare the app...

Page 3: ...and remove compo nents Check that all installation parts are present which includes the purification assembly storage tank faucet installation hardware and tubing Check that the air supply in the empt...

Page 4: ...the condition of the drain piping espe cially in older homes where the traps and tail pieces can be deceptively thin and frail If in poor condition it is wise to inform the customer that the conditio...

Page 5: ...air gap module Plumber s putty It is important to understand what is involved in this procedure First the glassy layer of porcelain must be penetrated through to the base metal Second a center disc o...

Page 6: ...usually mounted to the right or left sink cabinet sidewall taking into consideration the space available and the tank loca tion Generally the tank is placed in the rear of the sink cabinet while the...

Page 7: ...faucet until a steady stream of water flows Close faucet wait at least 5 minutes and carefully check for leaks Correct as necessary NOTE When the system is first turned on water may intermittently sp...

Page 8: ...er and hex nut onto the threaded nipple Hand tighten hex nut until faucet feels snug E After rechecking faucet orientation tighten hex nut 9 16 wrench or deep socket until faucet feels secure NOTE Fla...

Page 9: ...ion and slide faucet handle forward over spout hole to gain access to faucet valve Unscrew the tee bar and slotted bushing to remove valve Clean out obstruction or replace with new valve mechanism as...

Page 10: ...pipe farther from Properly plug original hole Caution Make sure drain saddle is always installed above before the the trap Fig 4 10 General Basement Installation Schematic Fig 2 Faucet with Air Gap 1...

Page 11: ...n Saddle Elbow Drain Saddle Mount drain saddle at either location Hole should be located on top of the pipe NOTE Some state and local plumbing codes may prohibit the use of saddle type valves and or d...

Page 12: ...tubing selected for use with these connectors be of high quality exact size and roundness and with no surface nicks or scratches If it is necessary to cut the tubing use a plastic tubing cutter or sh...

Page 13: ...only yearly replacement C Recommended maximum sediment prefilter service life is one year When To Replace Carbon Prefilter 4500 and 5000 Series Only The carbon prefilter removes free chlorine from th...

Page 14: ...low sanitizing and start up procedures for the storage tank and purification assembly outlined in Section IV IV RO Appliance Sanitization To assure the highest quality water from your Water Factor RO...

Page 15: ...he Purification Assembly Sanitizing the purification assembly generally requires New prefilter cartridge s and filter housing O ring s Water Factory filter wrench or equivalent Common household bleach...

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