INSTALLATION AND OPERATING INSTRUCTIONS

1 INSTALLATIONAND OPERATINGINSTRUCTIONSIN109G (05-004)NS/NLS SERIES RESIDENTIALWATER SOFTENERTWO TANK MODELS: NS0750NS0751 NS1000NS1001 NS1500NS1501 NS2000NS2001 NS2500NS2501 NSM0750 NSM0751 NSM1000 NSM1001 NSM1500 NSM1501 NSM2000 NSM2001 NSM2500 NSM2501 SPACE-MAKER MODELS:NLS0500 NLS0501 NLS0750 NLS0751 NLS1000 NLS1001 NLSM0750 NLSM0751 NLSM1000 NLSM1001 Manufactured by:Cuno water TreatmentA Division of CUNO Incorporated12628 33 North, Churubusco, IN 46723 Congratulations! We believe your purchase of this watersoftener will prove to be a very wise choice. When properlyinstalled, your new softener will provide many years oftrouble-free service. Before starting the INSTALLATION wesuggest you read this manual all the way through for anoverview, and then follow the INSTALLATION steps in the propersequence.

2 IMPROPER INSTALLATION could void AND HANDLING YOUR water SOFT-ENER:Inspect the equipment for shipping damage. If damaged,notify the transportation company and request a the equipment with care. Damage can result ifdropped or if the brine tank is set on sharp, uneven projec-tions on the floor. When handling, do not turn the watersoftener unit upside SURE YOUR water HAS BEEN THOROUGHLYTESTED:An analysis of your water should be made prior to theselection of your water conditioning equipment. Your dealerwill generally perform this service for you, and may send asample to the factory for analysis and your analysis below for a permanent 2005 by Cuno water Treatment. All rights reserved. Not to be reprinted in any form without written permission. TABLE OF CONTENTSSECTIONDESCRIPTION 1 BEFORE INSTALLATION 2 INSTALLATION 3 REGENERATION INSTRUCTIONS (Timer Setting INSTRUCTIONS ) 4 SERVICE INSTRUCTIONS 5 SPECIFICATIONS & OPERATING DATA 6 PARTS 7 MAINTENANCESECTION 1: BEFORE INSTALLATIONNOTE: Hydrogen sulfide (H2S) must be tested for at the wellsite.

3 For accuracy, the sample must be drawn with the pumpRUNNING, and the test be completed within ONE minuteafter the sample is : Softeners are designed to remove hardness but canhandle reasonable amounts of soluble iron if considerationis given to content when selecting model and regenerationsettings. To treat sulfur (hydrogen sulfide), bacterial iron,precipitated iron or very high levels of soluble iron requiresspecial equipment in addition to a water softener . For bestresults, a Chem-Free Iron Removal System is recom-mended for use on waters containing more than 2 ppm OF YOUR WATERH ardness_____ gpgIron (Fe)_____ ppmManganese (Mn)_____ ppmpH_____Tannins (Humic Acid)_____ ppmHydrogen sulfide (H2S)_____ ppmOther _____Other _____1-1 CHECK YOUR water PRESSURE AND PUMPINGRATE:Two water system conditions must be checked carefully toavoid unsatisfactory operation or equipment damage:1) MINIMUM water pressure required at the filter tank inletis 20 psi.

4 IF PRESSURE IS OVER 100 PSI, A PRES-SURE REDUCING VALVE MUST BE INSTALLED INTHE water SUPPLY LINE AHEAD OF THE : If you have a municipal or a community watersupply and daytime water pressure is 85 psi or more,nighttime pressure may exceed 100 psi. Call your localwater department or plant operator to obtain pressurereadings. If you have a private well, the gauge on thepressure tank will indicate the high and low systempressure. Record your water pressure data below: water PRESSURE Low _____ psi High _____ psiIMPORTANT: Damage to system can occur (includingpossible mineral tank structural failure resulting in a waterleak) if system is subjected to a vacuum. The installer shouldtake appropriate measures if there is the possibility a vacuummay occur. This would include the INSTALLATION of an appropri-ate device in the supply line to the system, , a vacuumbreaker or backflow prevention device.

5 Vacuum damagevoids the factory ) The pumping rate of your well pump must be sufficientfor satisfactory operation and BACKWASHING of theWATER softener . (see SPECIFICATIONS ANDOPERATING DATA , Section 5)LOCATE water CONDITIONING EQUIPMENT COR-RECTLY:Select the location of your water softener with care. Variousconditions which contribute to proper location are as fol-lows:1) Locate as close as possible to water supply ) Locate as close as possible to a floor or laundry ) Locate in correct relationship to other water conditioningequipment (Figure 1).4) Locate the softener in the supply line BEFORE thewater heater. Temperatures above 100 F (38 C) willdamage the softener and void the factory ) Do NOT install the softener in a location where freezingtemperatures occur. Freezing may cause permanentdamage and will also void the factory ) Allow sufficient space around the unit for easy ) Provide a non-switched 110/120V, 60Hz power sourcefor the TO REMEMBER WHILE PLANNING YOUR IN-STALLATION:(1) All INSTALLATION procedures MUST conform to local andstate plumbing codes.

6 (2) If lawn sprinkling, a swimming pool, or geothermal heat-ing/cooling or water for other devices/activities are to betreated by the water softener , a larger model MUST beselected to accommodate the higher flow rate and soft-ening demand of these items. The pumping rate of thewell pump must be sufficient to accomodate these itemsplus the backwashing requirements of the water your dealer for alternative INSTRUCTIONS if thepumping rate is insufficient.(3) Remember that the water softener INLET is attached tothe pipe that supplies water ( , runs to the pump), andthe OUTLET is the line that runs toward the waterheater.(4) Before commencing the INSTALLATION it is advisable tostudy the existing piping system and to determine thesize, number and type of fittings : If the plumbing system is used as the ground legof the electrical supply, continuity should be maintainedby installing ground straps around any nonconductiveplastic piping used in INSTALLATION .

7 (5) It is also advisable to sweep the floor to eliminate objectsthat could pierce the brine tank.(6) SODIUM INFORMATION: water softeners using so-dium chloride for regeneration add sodium to the who are on sodium restricted diets shouldconsider the added as part of their overall 2: INSTALLATION2-1 Step 1. If not factory pre-installed, attach BYPASS VALVEor YOKE ASSEMBLY using ADAPTER COU-PLINGS, CLIPS and SCREWS to CONTROLVALVE (Figure 2). On meter initiated models,attach METER between BYPASS VALVE andCONTROL VALVE (Figure 2).Step 2. On Series 2501 ONLY attach salt grid leg exten-sions (provided) to bottom of salt grid legs bysnapping nipple on end of extension into hole inthe bottom of the grid leg. NOTE: Extension legsshould be installed whenever salt dosage on anymodel softener is 15 lbs. or more. Verify allpacking materials have been removed from thebrine tank.

8 On all units, push salt grid down intobrine tank until grid legs rest on bottom of 1. INSTALLATION SCHEMATICStep 3. Shut off all water at main supply valve. On a privatewell system, turn off power to pump and drainpressure tank. Make certain pressure is relievedfrom complete system by opening nearest faucet todrain system. SHUT OFF FUEL SUPPLY TOWATER 4. Cut main supply line as required to fit plumbing toINLET and OUTLET of 5. Attach plumbing. DO NOT apply heat to any fittingconnected to BYPASS or CONTROL VALVE asdamage may result to internal parts or connectingadapters. MAKE CERTAIN water FLOW EN-TERS THROUGH INLET AND DISCHARGESTHROUGH 2. softener AND BRINE TANK ASSEMBLY, TOP VIEW2-2 Step 6. Attach DRAIN LINE to DRAIN LINE FITTING. Toprevent back pressure from reducing flow ratebelow minimum required for backwash, DRAINLINE MUST be sized according to run length andrelative height.

9 Be careful not to bend flexible draintubing sharply enough to cause "kinking" (if kinkingoccurs DRAIN LINE MUST BE REPLACED). Typi-cal examples of proper DRAIN LINE diameters are:(1) 1/2 in. ID up to 15 ft. when discharge is lowerthan INLET.(2) 5/8 in. ID up to 15 ft. when discharge is slightlyhigher than INLET.(3) 3/4 in. ID when drain is 25 ft. away and/or drainis installed 3. TYPICAL DRAINStep 7. Position DRAIN LINE over drain and secure prevent backsiphoning of waste water , providean air gap of at least 2 in. or 2 pipe diametersbetween end of drain hose and drain (Figure 3). DONOT raise DRAIN LINE more than 10 ft. above 8. Connect one end of the 3/8 in. poly line to BRINEVALVE located on the right side of CONTROLVALVE. Connect other end to ELBOW inside ofBRINE WELL. Brass insert sleeves and plasticferrules must be used where necessary.

10 (Figure 2and CONTROL VALVE PARTS Drawing, Section6).Step 9. Install OVERFLOW LINE to brine tank OVERFLOWFITTING (Figure 2). Discharge of line must be lowerthan OVERFLOW FITTING. DO NOT INTERCON-NECT OVERFLOW LINE WITHVALVE 10. Make certain BYPASS VALVE INLET and OUT-LET KNOBS ARE IN "BYPASS" position. After allplumbing connections have been completed, openmain water shut-off valve or restore power to wellpump. Check for leaks and correct as 4. BYPASS VALVEStep 11. Manually stage control to BACKWASH POSI-TION by turning "MANUAL REGENERATIONKNOB", clockwise to "BACKWASH" position, re-fer to HOW TO SET TIME CLOCK REGENERA-TION CONTROL (Section 3).Step 12. Partially open INLET valve in plumbing or onBYPASS VALVE (Figure 4). This will allow theunit to fill slowly from the bottom up, eliminating airentrapment. Allow unit to fill slowly, failure to doso could result in loss of resin to the drain.