INSTALLATION AND OPERATING INSTRUCTIONS MCWS/CWS SERIES RESIDENTIAL WATER SOFTENER TWO TANK MODELS: MCWS075ME MCWS100ME MCWS150ME MCWS200ME MCWS300ME CWS075ME CWS100ME CWS150ME CWS200ME CWS300ME CAUTION: Damage to the system can occur (including possible mineral tank structure failure resulting in a water leak), if system is subjected to a vacuum. The installer should take appropriate measures to prevent a vacuum.
SAFETY INFORMATION Read, understand, and follow all safety information contained in these instructions prior to installation and use of the CUNO MCWS/CWS Series Residential Water Softener. Retain these instructions for future reference. Intended Use: The CUNO MCWS/CWS Series Residential Water Softener is intended for use in softening water in homes and has not been evaluated for other uses.
TABLE OF CONTENTS SECTION 1 2 3 4 5 6 7 8 DESCRIPTION BEFORE INSTALLATION INSTALLATION CONTROL VALVE PROGRAMMING & REGENERATION MAINTENANCE UNIT & CONTROL VALVE SERVICE & TROUBLESHOOTING SPECIFICATIONS & OPERATING DATA PARTS LIMITED WARRANTY IMPORTANT: SECTION 1: BEFORE INSTALLATION Congratulations! We believe your purchase of this water softener will prove to be a very wise choice. When properly installed, your new softener will provide many years of virtually trouble-free service.
CHECK YOUR WATER PRESSURE AND PUMPING RATE: Two water system conditions must be checked carefully to avoid unsatisfactory operation or equipment damage: 1) MINIMUM water pressure required at the water softener inlet is 20 psi (138 kPa). IF PRESSURE IS OVER 100 PSI (689 kPa), A PRESSURE REDUCING VALVE MUST BE INSTALLED IN THE WATER SUPPLY LINE AHEAD OF THE WATER SOFTENER. 5) DO NOT install the softener in a location where freezing temperatures occur.
SECTION 2: INSTALLATION TREATED WATER PRESSURE TANK BRINE TANK RAW WELL WATER SOFTENER FILTER PRESSURE SWITCH. STANDARD WELL INSTALLATION WATER FOR LAWN SPRINKLERS OR OTHER HIGH DEMAND TREATED WATER TO 110 V OUTPUT SECONDARY PRESSURE PRIMARY SOLENOID VALVE PRESSURE TANK TANK BRINE TANK RAW WELL WATER SOFTENER SECONDARY PRESSURE SWITCH. FILTER CHECK VALVE PRIMARY PRESSURE SWITCH.
SECTION 2: INSTALLATION IMPORTANT: Failure to follow instructions may void warranty. Step 1. Remove the unit from the shipping box and remove all packaging. Ensure no freight damage has occurred since shipment from our manufacturing facility. Locate the parts package and install the bypass and adapter fittings on the control valve to facilitate the connection to the customer’s water supply.
OUT Some areas prohibit the use of flexible drain lines. Check with local code officials prior to installation. IN BYPASS VALVE OFF OFF OFF OFF BRINE LINE ELBOW INJECTOR COVER CONTROL VALVE BODY DRAIN LINE FLOW CONTROL ASSEMBLY Supply Water Enters Treated Water Exits OFF OFF OFF OFF Supply Water Enters Supply (Untreated) Water Exits OFF OFF OFF Figure 3. TYPICAL DRAIN BYPASS OPERATION OFF NORMAL OPERATION Step 8. Position DRAIN LINE over drain and secure firmly.
Step 15. Refer to SECTION 3, as how to set control valve for the correct time of day. When shifting to daylight saving time and (back), you may wish to adjust TIME OF DAY accordingly. NOTE: TIME OF REGENERATION is preset for 2:00 a.m. because at this time water consumption is generally minimal (a built-in hard water bypass does, however, permit water to be drawn during regeneration). Should your life style require regular use of water during the 2:00 to 3:00 a.m.
SECTION 3: CONTROL VALVE PROGRAMMING AND REGENERATION Step 1 Installer Display Settings (Step 1) Press NEXT and simultaneously for 3 seconds. Step 2 (Step 2) Hardness: Set the amount of hardness in grains of hardness as calcium carbonate per gallon using the or buttons. The default is 20 with value ranging from 1 to 150 in 1 grain increments. Note: The grains per gallon can be increased if soluble iron needs to be reduced. Press NEXT to go to step 3. Press REGEN to exit Installer Display Settings.
Diagnostics Step 1 (Step 1) Press or simultaneously for three seconds. If screen in step does not appear in 5 seconds the lock on the valve is activated. To unlock press , NEXT, , and SET CLOCK in sequence, then press NEXT and simultaneously for 3 seconds. Step 2 (Step 2) Days, since last regeneration: This display shows the days since the last regeneration occurred. Press the NEXT button. Press REGEN to exit Diagnostics.
Step 1 Valve History (Step 1) Press Step 1 Step 2 and simultaneously for three seconds and release. Then press and simultaneously and release. If screen, to the left, does not appear is 5 seconds the lock on the valve is activated. To unlock press , NEXT, and SET CLOCK in sequence, then press and . Then press and simultaneously and release. (Step 2) Software Version: This display shows the software version of the valve. Press the NEXT button to go to the next step or press REGEN to exit Valve History.
User Display Settings General Operation When the system is operating, one of two displays will be shown. Pressing NEXT will alternate between the displays. One of the displays is always the current time of day. The second display is one of the following: days remaining or gallons remaining. Days remaining is the number of days left before the system goes through a regeneration cycle. Capacity remaining is the number of gallons that will be treated before the system goes through a regeneration cycle.
SECTION 4: MAINTENANCE REPLENISHMENT OF SALT SUPPLY: PERIODICALLY CHECK TIME OF DAY SETTING: The salt storage capacity of the brine tank is approximately 180 lbs (82 kg). During each regeneration a specific amount of salt is consumed, thus requiring its periodic replenishment (the frequency and salt dosage level is dependent on the regeneration schedule). Always replenish salt before the supply is exhausted for a continuous supply of softened water.
SECTION 5: CONTROL VALVE TROUBLESHOOTING GUIDE Pr obl em Possi bl e Cause a. AC Adapter unplugged 1. Timer does not display time of day 2. Timer does not display correct time of day 3. No softening/ ¿ ltering display when water is À owing 4. Control valve regenerates at wrong time of day 5.
SECTION 5: CONTROL VALVE TROUBLESHOOTING GUIDE Problem 6. Control valve stalled in regeneration Possible Cause a. Motor not operating b. No electric power at outlet c. Defective AC Adapter d. Defective PC board Solution a. Replace motor b. Repair outlet or use working outlet c. Replace AC Adapter d. Replace PC board e. Broken drive gear or drive cap assembly cap e. Replace drive gear or drive cap assembly f. Broken piston retainer f. Replace drive cap assembly g. Broken main or regenerant piston a.
SECTION 5: CONTROL VALVE SERVICE INSTRUCTIONS Drive Assembly Remove the valve cover to access the drive assembly. WARNING: Disconnect the power source plug (black wire) from the PC board prior to disconnecting the motor or water meter plugs from the PC board. The power source plug connects to the four-pin jack. The motor plug connects to the two-pin jack on the left-hand side of the PC board. The water meter plug (grey wire) connects to the three-pin jack on the far right-hand side of the PC board.
Drive Cap Assembly, Main Piston and Regenerant Piston The drive assembly must be removed to access the drive cap assembly. The drive cap assembly must be removed to access the piston(s). The drive cap assembly is threaded into the control valve body and seals with an o-ring.
5H¿OO )ORZ &RQWURO $VVHPEO\ RU 5H¿OO 3RUW 3OXJ TR FOHDQ RU UHSODFH WKH UH¿OO ÀRZ FRQWURO SXOO RXW WKH HOERZ ORFNLQJ FOLS DQG WKHQ SXOO VWUDLJKW XS RQ WKH HOERZ. Replace WKH HOERZ ORFNLQJ FOLS LQ WKH VORW VR WKDW LW LV QRW PLVSODFHG 7ZLVW WR UHPRYH WKH ZKLWH ÀRZ FRQWURO UHWDLQHU 7KH ÀRZ FRQWURO FDQ EH UHPRYHG E\ SU\LQJ XSZDUG WKURXJK WKH VLGH VORWV RI WKH UHWDLQHU ZLWK D VPDOO ÀDW EODGH VFUHZGULYHr.
SECTION 5: SYSTEM TROUBLESHOOTING GUIDE PROBLEM 1. CAUSE SOLUTION Hard water, (unit not using salt; liquid level in brine tank not too high) A. Electrical service to unit interrupted. A. B. C. D. Time improperly set. Safety brine valve not opening. Salt "bridged" in brine tank. B. C. D. Assure permanent electrical service (check fuse, plug, pull chain or switch.) Check programming function. Replace safety brine valve. Breakup salt. 2.
SECTION 6: SPECIFICATIONS AND OPERATING DATA ITEM Nominal Media Volume, Ft 3 Salt Dosage, Lbs. Salt Efficient Setting Factory Setting Maximum Setting Softening Capacity, grains At Salt Efficient Setting At Factory Salt Setting At Maximum Salt Setting Salt Efficiency, grains per lb.
SECTION 7: PARTS COMPONENT PARTS LIST REF NO.
SECTION 7: PARTS COMPONENT PARTS LIST Drawing No. 1 2 3 4 5 6 * Not Shown Front Cover and Drive Assembly Order No. Description V 3175-01 Front Cover Assembly V 3107-01 M otor V3106-01 Drive Bracket&Spring Clip V 3108 PC Board V 3110 Dri ve Gear 12x36 V 3109 Dri ve Gear Cover V 3002 Dri ve A SY V3186 AC Adapter 110V-12 Quantity 1 1 1 1 3 1 * 1 * Drawing number parts 2 through 6 may be purchased as a complete assembly, part V3002.
6(&7,21 7: 3$576 &20321(17 3$576 /,67 Drive Cap Assembly 'RZQÀRZ 3LVWRQ 5HJHQHUDQW 3LVWRQ DQG 6SDFHr 6WDFN Assembly Drawing No. Order No.
SECTION 7: PARTS COMPONENT PARTS LIST Injector Cap, Injector Screen, Injector, Plug and O-Ring Quantity Order No. Description V 3176 I nj ector Cap 1 V 3152 O-ri ng 135 1 V 3177 I nj ector Screen 1 V3010-1Z Injector ASY Z Plug 1 V3010-1B INJECTOR ASY B BROWN V3010-1C INJECTOR ASY C VIOLET 5 V3010-1E INJECTOR ASY E WHITE V3010-1H INJECTOR ASY H GREEN Not Shown V 3170 O-ri ng 011 * Not Shown V 3171 O-ri ng 013 * *The injector plug and the injector each contain one 011 (lower) and 013 (upper) o-ring.
SECTION 7: PARTS COMPONENT PARTS LIST Refill Flow Control Assembly Drawi ng No. 1 2 3 4 5 6 7 Not Shown Order No. H4615 JCP-P-6 JCPG-6PBL K H4613 V 3163 V 3165-01* V 3182 H4650 Descri pti on El bow L ocki ng Cl i p Pol ytube i nsert 3/8” Nut 3/8” El bow Cap 3/8” 0-ri ng 019 BLFC Retainer Assembly** BLFC Elbow ½” with nut and insert Quanti ty 1 1 1 1 1 1 1 Option *Assembly includes V3182 BLFC. ** Includes drawing #7.
SECTION 7: PARTS COMPONENT PARTS LIST Drain Line – 3/4” Drawing No. 1 2 3 4 5 6 7 Order No. H4615 PKP10TS8-BULK V3192 V3158-01 V 3163 V3159-01 V3162-013 V3162-017 V3162-027 V3162-053 Description Elbow Locking Clip Polytube insert 5/8 Nut ¾ Drain Elbow Drain Elbow ¾ Male O-ri ng 019 DLFC Retainer Assembly DLFC 1.3 gpm for ¾ DLFC 1.7 gpm for ¾ DLFC 2.7 gpm for ¾ DLFC 5.3 gpm for ¾ Water Flow Proper DLFC orientation directs water flow towards the washer face with rounded edge.
SECTION 7: PARTS COMPONENT PARTS LIST Water Meter and Meter Plug Drawing No.
SECTION 7: PARTS COMPONENT PARTS LIST Order No:V3007-02 Description: Fitting 1” Brass Sweat Assembly Order No:V3007-03 Description: Fitting 3/4” Brass Sweat Assembly Quantity Drawing No. 1 V3151 Nut 1” Quick Connect 2 1 V3151 Nut 1” Quick Connect 2 V 3150 Split Ring 2 2 V 3150 Split Ring 2 3 V 3105 O-Ri ng 215 2 3 V 3105 O-Ri ng 215 2 4 V3188 2 4 V3 Fitting 3/4” Brass Sweat Assembly 2 Drawing No. Order No. Description Fitting 1” Brass Sweat Assembly Order No.
SECTION 7: PARTS COMPONENT PARTS LIST Bypass Valve Drawing No. Description Order No. 1 V3151 2 V 3150 3 4 Quantity Nut 1” Quick Connect 2 Split Ring 2 V 3105 O - R i ng 215 2 V 3145 Bypass 1” Rotor 2 5 V 3146 Bypass Cap 2 6 Bypass Handle 2 7 V 3147 V 3148 8 V 3152 O - r i ng 135 2 9 V 3155 O - r i n g 11 2 2 10 V 3156 O - r i ng 214 2 Bypass Rotor Seal Retainer 2 V3191-01 Vertical Adapter Assembly Description Order No.
SECTION 7: PARTS COMPONENT PARTS LIST Wrench (Order No. V3193-01) Although no tools are necessary to assemble or disassemble the valve, the wrench (shown in various positions on the valve) may be purchased to aid in assembly or disassembly.
SECTION 8: LIMITED WARRANTY Please read and complete the following limited warranty and mail the bottom half within 10 days of purchase CUNO Incorporated warrants to the original purchaser-consumer of its Product that it is free of defects in materials and workmanship. Any defect, malfunction, or other failure of this product to conform to this Limited Warranty will be remedied by CUNO in the manner provided below.
CUNO, Aqua-Pure and MacCLEAN are trademarks of 3M Company used under license. © 2006 3M Company. All rights reserved.
