Watts PWSRTA Series, Installation, Operation And Maintenance Manual

Page 1: ...nder the product ineffective for the service intended Regular checking and cleaning of the product s internal compo nents helps assure maximum life and proper product function WARNING PWSRTA Twin Alternating Series Softeners Installation Operation and Maintenance Manual Table of Contents System Specification Table 2 Safety Information 3 General Warnings 3 4 Pre Installation Considerations 4 5 Gene...

Page 2: ...NERAL TANK BRINE TANK FLOW RATE PRESSURE SHIP WT LBS TANK SIZE RESIN FT3 GRAVEL LBS TANK SIZE SALT FILL SERVICE GPM DROP PSI BKW GPM PWSRTA130 30 000 1 9 x 48 1 15 18 x 40 400 13 19 15 25 2 2 230 PWSRTA145 45 000 1 10 x 54 1 5 20 18 x 40 400 14 21 15 25 2 7 290 PWSRTA160 60 000 1 12 x 52 2 30 18 x 40 400 15 21 15 25 3 2 420 ...

Page 3: ...s The power outlet must be grounded All electrical connections must be connected according to local codes Be certain the outlet is uninterrupted Install grounding strap on metal pipes The power adapter comes with a 15 foot power cord and is designed for use with the control valve The power adapter is for dry location use only The control valve remembers all settings until the battery power is depl...

Page 4: ...htening may cause valve or tank damage NOTICE If lubricant is required a silicone compound is strongly recommended Dow Corning Silicone Compound available from Watts is recommended for best possible results Dow Corning 7 Release Compound is used in the manufacture of this control valve The use of other types of lubricants may attack the control s plastic or rubber components Petroleum based lubric...

Page 5: ...ff water heater s 2 Turn off the main water supply to the home and open an inside faucet cold and hot to relieve any pressure within the plumbing system 3 Place the system in the desired installation location Make sure that the location is level and sturdy enough to support the weight of the system once it is in operation 4 Place the bypass valve in the bypass position 5 Connect the cold water sup...

Page 6: ...nts not listed in the Quick Programming Guide please see the detailed programming section of this manual NOTICE The electronics in the PWSRTA control valve are used across a wide variety of control valves and applications including backwashing filters All programming for the electronics has been included in this manual for reference however the valve must be programmed for Twin Alternating Softeni...

Page 7: ... Softener Fill brine tank refill is set at 6 minutes which is most efficient setting This can be changed to maximum brining if needed maximum brining would be set at 10 minutes For 45K Water Softener Fill brine tank refill is set at 8 minutes which is most efficent setting This can be changed to maximum brining if needed maximum brining would be set at 15 minutes For 60K Water Softener Fill brine ...

Page 8: ...will cancel the regeneration Pressing and holding for 3 seconds will initiate an immediate regeneration Pressing while in regeneration will advance to the next cycle Pressing in the program levels will go backwards to the previous screen Key sequence to lock and unlock program settings Scrolls to the next display Holding for 3 seconds initiates a control reset The software version is displayed and...

Page 9: ...Setting Time of Day Push NEXT until time of day screen is displayed Press and hold until SET TIME is displayed and the hour flashes once Press or until the correct hour is displayed Then press NEXT The minutes will flash Press or until the correct minute is displayed Press NEXT to return to the User Displays Time of day should only need to be set after power outages lasting more than 8 hours if th...

Page 10: ...r dP switch One dP signal or one dP switch cannot be used for both controls on0 If the dP switch is closed for an accumulative time of 2 minutes a regeneration will be signaled to the unit In a twin alternating system the MAV will transition first to switch units so that the signaled unit can start regeneration After the MAV has fully transitioned the regeneration begins immediately Note For PWSRT...

Page 11: ... control operation For separate source operation the three wire communication cable is not used Selection requires that a connection to a Watts Motorized Alternator Valve MAV is made to the two pin connector labeled MAV located on the printed circuit board The C port of the MAV must be connected to the valve inlet and the A port connected to the separate source used during regeneration The B port ...

Page 12: ...iston rod Retracted Extended Valve B in Service Position MAV piston rod Extended PWSRTA For Watts alternator systems using PWSRTA valves there will be an option to delay the last two cycles of regeneration only Rinse and Fill This feature splits the regeneration into two portions The first portion of the regeneration will start immediately and all programmed cycles before the Rinse and Fill cycles...

Page 13: ... control valve to System Controller For communication between control valve and System Controller a three wire communication cable is required Selection requires that a connection to a Watts No Hard Water Bypass V3070FF or V3070FM be made to the two pin connector labeled MAV located on the printed circuit board for PWSRTA control valves For valve types PWSRTA15 and PWSRTA2 a connection from a Watt...

Page 14: ...the regeneration time set This screen is not viewed when Step 2S is set to Filtering Press NEXT to go to Step 5S Press REGEN to return to previous step Step 4S Step 5S Select the time for the first cycle using or For valve types 1 5 and 2 0 oFF is also available Press NEXT to go to Step 6S Press REGEN to return to previous step Step 5S Step 6S Select the time for the second cycle using or For valv...

Page 15: ...mated oFF regeneration will be triggered solely by the day override setting see Installer Display Settings Step 4I a number regeneration will be triggered by the value specified in Gallons If oFF or a volume is used the hardness display will not be allowed to be set in Installer Display Settings Step 2I See Setting Options Table for more detail Press NEXT to go to Step 12S Press REGEN to return to...

Page 16: ...sed through the meter Ranges from 1 to 200 gallons Press NEXT to go to Step 15S Press REGEN to return to previous step Step 15S Set Relay Deactivate Time using or If Set Time on is selected in Step 13S the relay will deactivate after the time set has expired Ranges from 1 second to 200 minutes If Set Gallons Softening on or Set Gallons Softening Regen on is selected in Step 13S the relay will deac...

Page 17: ...eration occurs immediately when volume capacity reaches 0 Time of regeneration will not be allowed to be set because regeneration will always occur when volume capacity reaches 0 Any number On 0 oFF Reserve capacity NOT automatically estimated Regeneration occurs immediately when volume capacity reaches 0 Time of regeneration will not be allowed to be set because regeneration will always occur whe...

Page 18: ...eturn to previous step Step 4F Step 5F Set Regeneration trigger using or If value is set to oFF regeneration will be triggered solely by the day override setting see Installer Display Settings Step 4I a number regeneration will be triggered by the value specified in gallons See Setting Options Table for more detail Press NEXT to go to Step 6F Press REGEN to return to previous step Step 5F Step 6F ...

Page 19: ...s first Ranges from 1 second to 20 minutes Press NEXT to exit OEM Filter System Setup Press REGEN to return to previous step Step 9F EXIT OEM FILTER SYSTEM SETUP Step 7F Set Relay Operation using or The choices are Time on Relay activates after a set time at the beginning of a regeneration and then deactivates after a set period of time The start of regeneration is defined as the first backwash cy...

Page 20: ...nge from 1 to 28 regeneration initiation will be called for on that day regardless of actual water usage Set Day Override using or number of days between regeneration 1 to 28 or oFF See Setting Options Table for more detail on setup Press NEXT to go to step 4I Press REGEN to return to previous step Step 3I Step 4I Next Regeneration Time hour Set the hour of day for regeneration using or The defaul...

Page 21: ... Step 5D Press REGEN to return to previous step Step 4D Step 5D Regenerations total number since start up This display shows the total number of regenera tions that have occurred since startup Press the NEXT button to go to Step 6D Press REGEN to return to previous step Step 5D Step 6D Error Log This display shows a history of the last 10 errors generated by the control during operation Press or t...

Page 22: ...either A or b If A then the tank with the valve on it was in service if b the tank with the in out head on it was in service The next three digits represent the number of hours ago that the transfer occurred The display alternates with the volume that was treated before the tank transferred Press NEXT at any time to go to Step 12D Press REGEN to return to previous step Step 11D Step 12D MAV Drive ...

Page 23: ... 01 PWSRTA AC ADAPTER CORD ONLY Not Shown V3178 PWSRTA Drive Back Plate 1 PWSRTA Part List and Drawings Front Cover and Drive Assembly AC Adapter U S International Supply Voltage 120 V AC 230V AC Supply Frequency 60 Hz 50 Hz Output Voltage 12 V AC 12 V AC Output Current 500 mA 500 mA Refer to Control Valve Service Manual for other drawings and part numbers 1 4 6 5 3 2 Battery replacement is 3 volt...

Page 24: ...11 V3174 V3005 V3031 1 Backwash Only Filter Plug in DN and UP holes Install Refill Port Plug V3011 None V3005 V3031 1 Upflow Softener Injector in UP hole Plug in unlabeled hole V3011 01 V3174 V3005 V3031 Valve Body Compliance Table PWSRTA with 1 050 Distributor Tube Opening Identification 1 25 1 25 Spacer Color Grey NOTICE The downflow piston is a solid amber color The upflow piston is black and a...

Page 25: ...bly 1 2 V3004 Drive Cap ASY 1 3a V3011 PWSRTA Piston Downflow ASY 1 3b V3011 01 PWSRTA Piston Upflow ASY 4 V3174 PWSRTA Regenerant Piston 1 5 V3135 O ring 228 1 V3011 is labeled with DN and V3011 01 is labeled with UP Upflow option is not applicable to EA EE or EI control valves NOTICE The regenerant piston is not used in backwash only applications 1 2 3b 4 3a 5 Refer to programming and Cover Draw...

Page 26: ...26 PWSRTA Twin Alternating Series Softeners 6 4 5 14 15 18 19 20 22 21 17 16 2 1 7 12 10 11 10 7 9 8 6 5 4 3 2 1 13 Twin Transfer ...

Page 27: ...06 01 T1 TRANSFER DRIVE CAP ASY 1 15 V4011 01 T1 TRANSFER DRIVE GEAR ASY 1 16 V4012 T1 TRANSFER DRIVE GEAR AXLE 1 17 V4013 T1 TRANSFER REDUCTION GEAR 1 18 V3264 CWS200 BYPASS REDUCTION GEARAXLE 3 19 V3110 PWSRTA DRIVE REDUCING GEAR 12X36 3 20 V3262 01 1 5 2 ALT 2BY REDUCGEARCVRASY 1 21 V3592 SCREW 8 1 PHPN T 25 SS 3 22 V4049 T1 COVER ASSEMBLY 1 NOT SHOWN V4043 T1 TRANSFER MOTOR ASY 1 NOT SHOWN V31...

Page 28: ...INJECTOR ASY E WHITE V3010 1F PWSRTA INJECTOR ASY F BLUE V3010 1G PWSRTA INJECTOR ASY G YELLOW V3010 1H PWSRTA INJECTOR ASY H GREEN V3010 1I PWSRTA INJECTOR ASY I ORANGE V3010 1J PWSRTA INJECTOR ASY J LIGHT BLUE V3010 1K PWSRTA INJECTOR ASY K LIGHT GREEN Not Shown V3170 O RING 011 Not Shown V3171 O RING 013 The injector plug and the injector each contain one 011 lower and 013 upper o ring For upfl...

Page 29: ...m chloride an inlet water pressure of 30 to 50 psi 2 1 to 3 4 bar and water temperature of 60 F 15 6 C water or warmer Higher pressures or lower temperatures would need smaller injectors to avoid lifting the bed Not applicable for EA EE or EI control valves Injector Order Information Injector Order Number Injector Color Typical Tank Diameter Down Up V3010 1A Black 6 8 V3010 1B Brown 7 9 V3010 1C V...

Page 30: ... insert 3 8 1 4 JCPG 6PBLK Nut 3 8 1 5 H4613 Elbow Cap 3 8 1 6 V3163 0 ring 019 1 7 V3165 01 PWSRTA RFC Retainer Asy 0 5 gpm 1 8 V3182 PWSRTA RFC 1 9 V3330 01 PWSRTA Brine Elbow Asy w RFC 3 8 1 Not Shown V3552 PWSRTA Brine Elbow Asy w RFC 1 2 Option Not Shown H4650 Elbow with nut and insert Option Assembly includes V3182 PWSRTA 0 5 gpm RFC 1 2 3 4 5 6 7 8 9 Water Flow Proper RFC orientation direct...

Page 31: ...SRTA DLFC 2 2 gpm for V3162 027 PWSRTA DLFC 2 7 gpm for V3162 032 PWSRTA DLFC 3 2 gpm for V3162 042 PWSRTA DLFC 4 2 gpm for V3162 053 PWSRTA DLFC 5 3 gpm for V3162 065 PWSRTA DLFC 6 5 gpm for V3162 075 PWSRTA DLFC 7 5 gpm for V3162 090 PWSRTA DLFC 9 0 gpm for V3162 100 PWSRTA DLFC 10 0 gpm for Valves are shipped without drain line flow control DLFC install DLFC before using Valves are shipped with...

Page 32: ...SRTA DLFC 9 0 gpm for 1 One DLFC must be used if 1 fitting is used V3190 100 PWSRTA DLFC 10 0 gpm for 1 V3190 110 PWSRTA DLFC 11 0 gpm for 1 V3190 130 PWSRTA DLFC 13 0 gpm for 1 V3190 150 PWSRTA DLFC 15 0 gpm for 1 V3190 170 PWSRTA DLFC 17 0 gpm for 1 V3190 200 PWSRTA DLFC 20 0 gpm for 1 V3190 250 PWSRTA DLFC 25 0 gpm for 1 Can be ordered as a set Order number V3008 02 description PWSRTA Drain FTG...

Page 33: ...r plumbing misalignments but are not designed to support the weight of a system or the plumbing Slide nut on first then the split ring and o ring Hand tighten the nut only The V4017 01 can be used on tanks up to 10 in diameter If using 12 diameter tanks or larger V4052 PIPE PVC SCH 80 1 1 4X 20 36 pieces per box may be purchased and combined with two V3007 07 W100T FTG 1 25 1 5 PVC SLVNT ASY The V...

Page 34: ...34 PWSRTA Twin Alternating Series Softeners Drawing No Order No Description Quantity 1 V3180 O Ring 337 1 2 V3105 O Ring 215 Distributor Tube 1 2 1 D1400 1191 In Out Head ...

Page 35: ...in gear of the drive cap assembly which moves the piston The screw driven horizontally moving piston stops at specific positions to direct the flow of water to backwash regenerate rinse or refill The PC board determines the position of the piston by counting pulses produced when the piston is moved An optical sensor looking at one of the reduction drive gears generates these pulses Each cycle posi...

Page 36: ...anufacturer s literature The color coded injectors give different regenerant draw slow rinse and total flow rates over the pressure range See injector graphs pages 25 28 for total slow rinse and draw flow rates The control valve has been manufactured to be one of the following regeneration downflow PWSRTA for softeners or regenerating filters install injector in DN location plug in UP location reg...

Page 37: ...ain line flow controls for the fitting Drain line flow controls designed for the 3 4 fitting are available for flow rates ranging from 0 7 to 10 gpm 2 6 to 37 9 lpm 3 An optional 1 straight drain line fitting is available to accommodate drain line flow rates ranging from 9 to 25 gpm 34 1 to 94 6 lpm This fitting is straight but still connects to the control valve using the same locking clip The dr...

Page 38: ... regenerates at wrong time of day a Power outage a Reset time of day If PC Board has battery back up present the battery may be depleted See Front Cover and Drive Assembly drawing for instructions b Time of day not set correctly b Reset to correct time of day c Time of regeneration set incorrectly c Reset regeneration time d Control valve set at on 0 immediate regeneration d Check programming sett...

Page 39: ...t remain at minimum of 25 psi b Incorrect injector size b Replace injector with correct size for the application c Restricted drain line c Check drain line for restrictions or debris and clean 11 Excessive water in regenerant tank a Improper program settings a Check refill setting b Plugged injector b Remove injector and clean or replace c Drive cap assembly not tightened in properly c Re tighten ...

Page 40: ...ve gear interface Press NEXT and REGEN buttons for 3 seconds to resynchronize software with piston position or disconnect power supply from PC Board for 5 seconds and then reconnect c Main drive gear too tight c Loosen main drive gear Press NEXT and REGEN buttons for 3 seconds to resynchronize software with piston position or disconnect power supply from PC Board for 5 seconds and then reconnect d...

Page 41: ...for 5 seconds and then reconnect c MAV NHBP motor not fully engaged with reduction gears c Properly insert motor into casing do not force into casing Press NEXT and REGEN buttons for 3 seconds to resynchronize software with piston position or disconnect power supply from PC Board for 5 seconds and then reconnect d Foreign matter built up on piston and stack assemblies creating friction and drag en...

Page 42: ...42 PWSRTA Twin Alternating Series Softeners NOTES ...

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Page 44: ...NTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND IN NO EVENT SHALL WATTS BE LIABLE IN CONTRACT TORT STRICT LIABILITY OR UNDER ANY OTHER LEGAL THEORY FOR INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION LOST PROFITS OR PROPERTY DAMAGE REGARDLESS OF WHETHER IT WAS INFORMED ABOUT T...