INSTALLATION AND OPERATING INSTRUCTIONS METERED WATER SOFTENERS MODELS: AWS100M AWS150M AWS200M AWS250M AWS300M CAUTION: Damage to the system can occur (including possible mineral tank structural failure resulting in a water leak), if system is subjected to a vacuum. The installer should take appropriate measures to prevent a vacuum. This would include the installation of an appropriate device in the supply line to the system, i.e. a vacuum breaker or backflow protection device.
TABLE OF CONTENTS SECTION DESCRIPTION 1 2 3 4 5 6 7 8 BEFORE INSTALLATION INSTALLATION PROGRAMMING SERVICE INSTRUCTIONS & MAINTENANCE PERFORMANCE DATA SHEET TROUBLESHOOTING PARTS WARRANTY SECTION 1: BEFORE INSTALLATION IMPORTANT: Read and follow all instructions before installation. Failure to do so may cause physical harm and/ or property damage. Failure to follow instructions may result in voidance of warranty. ELECTRICAL There are no user-serviceable parts in the AC adapter, motor, or controller.
CAUTION: To reduce the risks associated with water leakage, which, if not avoided, may result in property damage — check with your plumbing professional to verify that water pressure is less than 100 psi. 5) Use only regenerant salts designed for water softening. 6) Follow state and local codes for water testing. IMPORTANT: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
SECTION 2: INSTALLATION WATER LINE CONNECTION A bypass valve system should be installed on all water conditioning systems. Bypass valves isolate the conditioner from the water system and allow unconditioned water to be used. Service or routine maintenance procedures may also require that the system is bypassed. CAUTION: The inlet water must be connected to the inlet port of the valve. When replacing other makes of valves, the inlet and outlet may be reversed.
BRINE LINE CONNECTION The brine line to the brine tank connects to the valve. Make the connections and tighten. Be sure that the brine line is secure and free from air leak. Even a small leak may cause the brine line to drain out, and the conditioner will not draw brine from the tank. This may also introduce air into the valve causing problems with valve operation. ELECTRICAL CONNECTION All AWS controllers operate on 12-volt alternating current power supply. This requires use of the supplied AC adapter.
Information entered or calculated by the controller is stored in two different ways: A static memory will store: Media volume Regenerant setting Time of regeneration Days between regeneration A dynamic memory with 8 hour retention will store: Current day of week Running clock NOTE: Water flow to the valve can be turned on or bypassed when the controller is powered up for the first time. VARIABLE RESERVE FUNCTION The AWS metered-demand volumetric controllers are designed to have a variable reserve feature.
13) The recycle sign is displayed (flashing) when a regeneration at the next time of regeneration has been called for. Also displayed (continuous) when in regeneration. 14) The display cursor is next to “SALT” when programming the amount of regenerant. 15) The display cursor is next to “REGEN TIME & DAY” when programming the time of regeneration and the days of regeneration. 16) The display cursor is next to “TIME & DAY” when programming the current time and day.
REGENERATION MODES The AWS series controllers can be regenerated either automatically or manually. During a regeneration, the total time remaining of the regeneration, the total time remaining of the regeneration will be displayed on the controller. The current cycle is shown in the lower left of the display.
To cancel a regeneration (either manual or automatic): • Press and hold the SET button and UP buttons simultaneously and hold until the hourglass icon starts flashing (approximately 5 seconds). • The regeneration is cancelled. • The camshaft rotates to the treated water position (may take up to 2 min.) • Hourglass flashes while motor runs. If a second regeneration was programmed (display shows a 2X by the regeneration icon) both regenerations must be cancelled separately.
STARTUP NOTE: The control valve can be started-up even if power is not yet available to the controller. The valve must be connected to water supply. The motor can be unmounted from the valve, and the camshaft can be indexed manually counterclockwise by hand. This will allow the tank to be filled and allows regenerant draw to be tested. See Motor Removal in Maintenance and Service of this manual for further instructions. 1) Remove the cover from the valve.
While pressing the SET button, press the UP arrow to advance to the next cycle. Continue to advance through each cycle until you have reached cycle C8 (Refill). NOTE: As you advance through each cycle there will be a slight delay before you can advance to the next cycle. The hourglass icon will light while the camshaft is indexing. There may be a puase at cycle C4 (System Pause). This cycle allows the water/air pressure to equalize on each side of the valve discs before moving on.
SECTION 3: PROGRAMMING THINGS YOU MIGHT NEED TO KNOW • When the controller is first plugged in, it may display a flashing hourglass and the message Err 3, this means that the controller is rotating to the home position. If the Err 2 is displayed, check that the incoming power frequency matches the controller. See the Troubleshooting section of this manual. • The preset default time of regeneration is 2:00 AM. If you want to change it, see the Level II Programming section.
To change a setting: Action Key Duration Display Enter basic programming SET P/R Will show day of week UP and DOWN P/R Will increment through Move to desired display Enable setting to be changed Change setting Save setting Return to operation arrows SET UP and DOWN arrows SET REGEN P/R P/R P/R P/R the displays Display will flash Value changes and continues to flash Display stops flashing Normal operation display This level of programming is accessible by pressing the SET button.
• Calendar override The controller can be programmed to regenerate automatically from a 1/2 day to a 99 day frequency. The 1/2 day regeneration mode will regenerate at the “time of regeneration,” as well as 12 hours opposite from that time. For example, the controller will regenerate at 2:00 AM and at 2:00 PM on the same day. The default setting is 12 days. To change, push SET when this setting is displayed. Use the arrow buttons to increase/decrease. Push SET to enter the selection.
The following tables show the estimated salt amount for each setting, as well as the estimated capacity of that salt setting for each resin amount. Media Volume 1.0 1.5 2.0 2.5 3.0 Salt Setting L (Low) S (Standard) H (High) L (Low) S (Standard) H (High) L (Low) S (Standard) H (High) L (Low) S (Standard) H (High) L (Low) S (Standard) H (High) Total Salt Amount per Regeneration (lbs) 3.5 9 15 5 13.5 22.5 6.5 18 30 6.5 18 30 10 27 45 L = Low salt, approximately 3.3 lbs. per cu. ft.
History Data Description Range H0 Resin volume initial setting value cubic feet H1 Days since last regeneration H2 Current flow rate H3 Water used today in gallons since Time of Regeneration 0-65536 gallons H4 Water used since last regeneration in gallons 0-65536 gallons H5 Total water used since reset in 100s 0-65536 gallons H6 Total water used since reset in 1,000,000 0-65536 gallons H7 Average usage for Sunday in gallons 0-65536 gallons H8 Average usage for Monday in gallons 0-6
IMPORTANT: SECTION 4: SERVICE INSTRUCTIONS & MAINTENANCE VALVE SERVICE COVER The cover provides protection for the controller, wiring, and other components. This cover will be removed for most service and maintenacnce. When installed, the cover provides NEMA 3 water protection. This protects from falling water up to 30 degrees from vertical. To remove cover: 1) Grasp side edges toward rear of the valve. 2) Pull outwards until the slots in the cover clears the projections on the top plate.
3) Check routing of wires and plug them into the controller. Connectors will snap in place. Be sure that wires are properly managed through the clips on top plate. This will prevent the wires from being caught in the camshaft. 4) Place bottom of module in position. The bottom will fit into a clip. 5) Pivot the top into position and snap in place. The controller should be secure. If you are ready to program the controller, then power can be applied by plugging in transformer.
To remove optical sensor: 1) Disconnect power to the unit. 2) Remove cover. 3) Remove controller. 4) From the controller side, pinch the legs of the sensor holder in the top plate. 5) Pull the holder away from the mounting surface. 6) Remove wires. To install optical sensor: 1) Attach wires. Wires should point away from camshaft. 2) Place leading edge of sensor holder into opening. 3) Pivot holder into place. legs should enter slots and snap in place.
NOTE: If any part of the camshaft is broken or damaged the camshaft should be replaced. Do not repair or modify damaged cam lobes, gears or timing cup. To remove camshaft: 1) Disconnect power to the unit. 2) Remove cover. 3) Remove motor. 4) Camshaft should be in the treated water position. Rotate to the left as needed. 5) Use a screwdriver to hold open the #1 valve disc. NOTE: When replacing/removing camshaft, make sure not to damage or misalign the optical sensor.
4) Remove connections by squeezing the latch on the connector and pulling out. 5) Pull the harness out of the clips on the top plate. To install a wiring harness: NOTE: Start at the back of the valve and work toward the controller. This will place any slack behind the controller. Slack or loose wires can become tangled in the camshaft. 1) Depending on which harness is being installed, plug the connector into the motor or turbine. 2) Route the harness through the opeing at the back of the top plate.
8) Position yourself on the spring side of the valve discs. 9) Place two (or more) fingers on the flat part of the spring. 10) Move the fingers toward the valve discs and into the spring valley between the previously located valve discs. 11) By pulling back and up on the spring, the spring will pop out of the valley. 12) Pull back further to remove the spring. To install spring: 1) Inspect the spring for damage. Do not attempt to repair a bent spring.
5) Place unit in bypass. 6) Release water pressure by pushing the last valve disc open with a screwdriver. 7) Any optional items may be removed. 8) Wiring harnesses should be removed. 9) Remove valve disc spring. 10) Use a phillips screwdriver to remove the screws from the top plate. 11) Lift the top plate off. All the valve discs can be pulled straight out. Inspect valve discs for wear. The sealing surface is the raised ridge on the underside of the top shoulder.
6) The fourth screw goes into the hole diagonally opposite. Turn it in. 7) Put the remaining screws in following the same crisscross pattern working from the ends toward the center. When all the screws are in place they can be tightened down. 8) Start at the corner of the screw pattern and tighten that screw. Work the same pattern from the ends toward the center and crisscrossing as each screw is tightened. Check that each valve disc moves smoothly before replacing the spring and camshaft.
WATER METER MAINTENANCE Demand Systems The valve metering devices are used with the demand controls, and may require simple maintenance. In rare instances, the turbine wheel of the water meter can collect small particles of oxidized iron, eventually preventing the wheel from turning. 1) Shut off the water supply or put the bypass valve(s) into the bypass position. 2) Relieve pressure by opening the backwash drain valve (the seventh back from the controller) with a screwdriver.
To clean the refill flow control: 1) Place unit in bypass. Relieve water pressure by pushing open one of the last two valve discs. 2) Remove cap. 3) Pull refill flow control parts out. 4) Inspect parts for damage. 5) Flush with water and clean with soft brush. 6) Replace refill flow control parts. 7) Replace cap (hand tight). DRAIN FLOW CONTROL If the unit is not supplying conditioned water for as long as when it was first setup, then the drain flow control should be cleaned.
AFTER SERVICE START-UP Whenever the controller is unplugged or the system is put in bypass for maintenance, a start-up is required. This start-up is not normally as extensive as the new system start-up procedure needs to be followed. The initial power-up procedure should be used if a new controller or a new valve has been installed. This procedure is explained in the users manual.
SECTION 5: PERFORMANCE DATA SHEET CUNO Water Treatment MODEL Rated Service Flow Rate Pressure Drop at Rated Service Flow Rate (psi) Rated Softening Capacity (Grains / Pounds of Salt) Low Salt Setting Standard Salt Setting High Salt Setting Efficiency at factory (Low) Salt Setting Minimum / Maximum Working Pressure (PSI) Minimum / Maximum Operating Temperature (°F) Maximum Flow Rate (gpm) to Drain During Regeneration Cycle Nominal amount of High Capacity Resin (Cu. Ft.) Mineral Tank Dia.
SECTION 6: TROUBLESHOOTING PROBLEM CAUSE SOLUTION 1. ERR 1 displayed A. Controller power has been connected and the control is not sure of the state of operation. 2. ERR 2 displayed A. Controller power does not match 50 or 60 Hz. A. Disconnect and reconnect the power. B. If problem persists, obtain the appropriate controller for either 50 or 60 Hz power. 3. ERR 3 displayed A. Controller does not know the position of the camshaft. Camshaft should be roating to find home position. A.
PROBLEM 7. Control will not draw brine. CAUSE SOLUTION A. Low water pressure. B. Restricted drain line. C. Injector plugged. D. Injector defenctive. E. Air check valve closes prematurely. F. Valve disc 2 and/or 3 not closed. A. Set pump to maintain 20 psi at softener. B. Change drain to remove restriction. C. Clean injector and screen. D. Replace injector. E. Put control momentarily into brine/slow rinse. Replace or repair air check if needed. F.
PROBLEM CAUSE SOLUTION 16.Control will not regen- A. If water flow display is not operative, refer erate automatically but to Problem 10. will regenerate when B. Defective circuit board. button is pushed. C. Incorrect hardness and capacity settings. A. Same as Problem 10. 17.Run out of soft water A. Improper regeneration. between regenerations B. Incorrect salt settings. A. Repeat regeneration, making certain that correct salt dosage is used. B. Set control to proper level. See Specifications. C.
SECTION 7: PARTS COMPONENT PARTS LIST METERED SOFTENER MODELS (AWS-M SERIES) REF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 DESCRIPTION Control Valve, Timer & Cover (AWS-M) Adapter Assy., Flg-Thrd (incl. Ref. 4) O-ring Clamp Assy. (Incl. Ref. 5) Latch, Clamp Tank Jacket Cap Tank Jacket, White Media Tank w/Base (Incl. Ref. 11) Media Cyclone Assy.
VALVE EXPLODED VIEW 7-2
VALVE PARTS LIST ONLY THOSE PARTS REFERENCED IN DRAWING ARE STOCK ITEMS ALL OTHERS ARE SPECIAL ORDER, NON-RETURNABLE REF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Ref. 16 17 18 19 20 PART NO.
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 and Aqua-Pure are trademarks of 3M Company used under license. WQA is a trademark of the Water Quality Association. © 2006 3M Company. All rights reserved.
