Watts PWSRTA145, PWSRTA130, PWSRTA160 Installation, Operation And Maintenance Manual
IOM-WQ-PWSRTA
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
General Installation Instructions ...................................5
PWSRTA System Programming ........................ 6-7
PWSRTA Quick Programming Guide .........................7
Regeneration and Error Screens ............................8
User Displays ..........................................9
Configuration Settings ................................ 10-13
OEM Softener System Setup........................... 14-16
Setting Option Table .................................... 17
OEM Filter System Setup.............................. 18-19
Installer Display Settings .................................20
Diagnostics ........................................ 21-22
PWSRTA Part List and Drawings ........................23
Front Cover and Drive Assembly ...........................23
PWSRTA Twin Alternating Softener
!
WARNING
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information can
result in death, serious personal injury, property damage, or
damage to the equipment.
Keep this Manual for future reference.
!
WARNING
You are required to consult the local building and plumbing
codes prior to installation. If the information in this manual
is not consistent with local building or plumbing codes,
the local codes should be followed. Inquire with governing
authorities for additional local requirements.
!
WARNING
Need for Periodic Inspection/Maintenance: This product must
be tested periodically in compliance with local codes, but at least
once per year or more as service conditions warrant. All products must be retested once maintenance has been performed.
Corrosive water conditions, and/or unauthorized adjustments or
repair could render the product ineffective for the service intended.
Regular checking and cleaning of the product’s internal components helps assure maximum life and proper product function.
!
WARNING
Do not use with water that is microbiologically unsafe or of unknown quality adequate disinfection before and after the system.
Valve Body Compliance Table .............................24
PWSRTA with 1.050” Distributor Tube Opening Identification...... 24
Drive Cap Assembly, Downflow Piston, Upflow Piston,
Regenerant Piston and Spacer Stack Assembly ...............25
Twin Transfer ....................................... 26-27
Injector Cap, Injector Screen, Injector, Plug and O-Ring ..........28
Injector Order Information ................................29
Refill Flow Control Assembly and Refill Port Plug ...............30
Drain Line – 3/4” .......................................31
Drain Line - 1” .........................................32
V4017-01 T1 Interconnect Fitting Assembly...................33
D1400 1191 In/Out Head ................................34
PWSRTA Control Valve System Description ...............35
Drive Assembly ........................................35
Drive Cap Assembly, Main Piston and Regenerant Piston ........35
Spacer Stack Assembly..................................36
Injector Cap, Screen, Injector Plug and Injector . . . . . . . . . . . . . . . . 36
Refill Flow Control Assembly or Refill Port Plug ................36
Drain Line Flow Control and Fitting Assembly .................37
Troubleshooting ................................... 38-41
NOTES ..............................................42
NOTICE
Hydrocarbons such as Kerosene, Benzene, Gasoline,
etc., may damage products that contain O-rings or plastic
components. Exposure to such hydrocarbons may cause
the products to leak. Do not use the product(s) contained in
this document on water supplies that contain Hydrocarbons
such as Kerosene, Benzene, Gasoline, etc.
Systems Specification Table
A. PWSRTA Series
MINERAL TANK BRINE TANK FLOW RATE & PRESSURE
TANK
SIZE
RESIN
FT
GRAVEL
3
(LBS.)
TANK
SIZE
SALT
FILL
SERVICE
(GPM)
DROP
(PSI)
BKW
(GPM)
SHIP WT.
(LBS.)
MODEL NO.
CAPACITY
(MAX.)
PIPE SIZE
(IN.)
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
2 PWSRTA Twin Alternating Series Softeners
!
WARNING
General Installation Guidelines
This water conditioner’s control valve conforms to UL/
CE Standards. Generic valves were tested and certified for
compliance as verified by the agency listing. This water
conditioning system is to be used only for potable water.
Inspect the water conditioning system for carrier shortage or
shipping damage before beginning installation.
Operating Perameters:
• Operating ambient temperature: 40° to 110°F (5° to 43°C).
• Operating water temperature: 40° to 110°F (5° to 43°C).
• Operating water pressure range : 25 to 120 psi (1.7 to
8.27bar).
Installation Perameters: All plumbing should be done in
accordance with local plumbing codes.
• Do not use pipe dope or other sealants on threads. Use Teflon
tape on the threaded inlet, outlet and drain fittings. Teflon tape
is not necessary on the nut connection or caps because of
o-ring seals.
• All plastic connections should be hand tightened. Teflon® tape
may be used on connections that do not use an O-ring seal.
Do not use pipe dope type sealants on the valve body. Do not
use pliers or pipe wrenches.
• Observe drain line requirements.
• Keep the media tank in the upright position. Do not turn upside
down or drop. Turning the tank upside down or laying the tank
on its side can cause media to enter the valve.
• The pipe size for the drain line should be a minimum of ½”.
Backwash flow rates in excess of 7 gpm (26.5 lpm) or length in
excess of 20’ (6.1m) require ¾” drain line.
• Do not support the weight of the system on the control valve
fittings, plumbing, or the bypass.
Environmental:
• Use only regenerants designed for water conditioning. Do not
use ice melting salt, block salt or rock salt.
During cold weather it is recommended that the installer warm
the valve to room temperature before operating.
®
is a trademark of E.I. duPont de Nemours.
Teflon
• Do not use petroleum-based lubricants such as Vaseline, oils
or hydrocarbon-based lubricants. Use only 100% silicone
lubricants.
• Do not allow this water conditioning system to freeze. Damage
from freezing will void this water conditioning system’s
warranty.
• HYDROCARBONS SUCH AS KEROSENE, BENZENE,
GASOLINE, ETC., MAY DAMAGE PRODUCTS THAT
CONTAIN O-RINGS OR PLASTIC COMPONENTS.
EXPOSURE TO SUCH HYDROCARBONS MAY
CAUSE THE PRODUCTS TO LEAK. DO NOT USE THE
PRODUCT(S) CONTAINED IN THIS DOCUMENT ON
WATER SUPPLIES THAT CONTAIN HYDROCARBONS
SUCH AS KEROSENE, BENZENE, GASOLINE, ETC.
• THIS WATER METER SHOULD NOT BE USED AS THE
PRIMARY MONITORING DEVICE FOR CRITICAL OR
HEALTH EFFECT APPLICATIONS.
• Do not use Vaseline, oils, other hydrocarbon lubricants or spray
silicone anywhere. A silicone lubricant may be used on black
o-rings but is not necessary.
PWSRTA Twin Alternating Series Softeners 3
Electrical:
• Use only the power transformer supplied with this water
conditioning system.
• All electrical connections must be completed according to local
codes.
• 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 depleted if the power goes out.
• After the battery power is depleted, the only item that needs to
be reset is the time of day; other values are permanently stored
in the nonvolatile memory. The control valve battery is not
rechargeable but is replaceable.
• No user serviceable parts are on the PC board, the motor or
the power adapter. The means of disconnection from the main
power supply is by unplugging the power adapter from the
wall.
• Install an appropriate grounding strap across the inlet and
outlet piping of the water conditioning system to ensure that a
proper ground is maintained.
• To disconnect power, unplug the AC adapter from its power
source.
Soldering:
• Use only lead-free solder and flux, as required by federal and
state codes, when installing soldered copper plumbing.
• Use caution when installing soldered metal piping near the
water conditioning system. Heat can adversely affect the
plastic control valve and bypass valve.
• Solder joints near the drain must be done prior to connecting
the drain line flow control fitting. Leave at least 6” between the
drain line control fitting and solder joints when soldering pipes
that are connected on the drain line control fitting. Failure to do
this could cause interior damage to the drain line flow control
fitting.
• When assembling the installation fitting package (inlet and
outlet), connect the fitting to the plumbing system first and
then attach the nut, split ring and o-ring. Heat from soldering
or solvent cements may damage the nut, split ring or o-ring.
Solder joints should be cool and solvent cements should be
set before installing the nut, split ring and o-ring. Avoid getting
primer and solvent cement on any part of the o-rings, split
rings, bypass valve or control valve.
Control Valve:
• This glass filled Noryl1 (or equivalent) fully automatic control
valve is designed as the primary control center to direct and
regulate all cycles of a water softener or filter.
• The control valve, fittings and/or bypass are designed to
accommodate minor plumbing misalignments but are not
designed to support the weight of a system or the plumbing.
• The nuts and caps are designed to be unscrewed or tightened
by hand or with the special plastic wrench. If necessary a
pliers can be used to unscrew the nut or cap. Do not use a
pipe wrench to tighten or loosen nuts or caps. Do not place a
screwdriver in the slots on caps and/or tap with a hammer.
• After completing any valve maintenance involving the drive
assembly or the drive cap assembly and pistons unplug power
source jack from the printed circuit board (black wire) and plug
back in or press and hold NEXT and REGEN buttons for 3
General Warnings (continued)
!
WARNING
Installation Guidelines:
seconds. This resets the electronics and establishes the
service piston position. The display should flash all wording,
then flash the software version and then reset the valve to the
service position.
• The control valve is compatible with a variety of regenerants
and resin cleaners. The control valve is capable of routing
the flow of water in the necessary paths to regenerate or
backwash water treatment systems. The injector regulates the
flow of brine or other regenerants. The control valve regulates
the flow rates for backwashing, rinsing, and the replenishing of
treated water into a regenerant tank, when applicable.
• Control valve installation is made easy because the distributor
tube can be cut ½” above to ½” below the top of tank thread.
The distributor tube is held in place by an o-ring seal and
the control valve also has a bayonet lock feature for upper
distributor baskets.
Pre-Installation Considerations
A. Water Pressure
A minimum of 25 pounds of water pressure is required for
regeneration valve to operate effectively.
B. Electrical Facilities
A continuous 115 volt, 60 Hertz current supply is required. Make
certain the current supply is always hot and cannot be turned off with
another switch.
C. Existing Plumbing
Condition of existing plumbing should be free from lime and iron
buildup. Piping that is built up heavily with lime and/or iron should
be replaced. If piping is clogged with iron, a separate iron filter unit
should be installed ahead of the water softener.
D. Location Of Softener And Drain
The softener should be located close to a drain.
E. Bypass Valves
Always provide for the installation of a bypass valve.
F. Valve to Tank Installation Instructions
1. Spin the valve onto the tank, ensuring the threads are not crossthreaded.
NOTICE
The main control valve and tank adaptor have right-hand threads, or
clockwise, to install
2. Rotate the valve freely without using force until it comes to a stop
(this position is considered zero).
3. Rotate the valve clockwise from zero, between ¼ turn and ½
turn to fully tighten. No tools are needed. Hand tight is enough.
Overtightening may cause valve or tank damage.
NOTICE
If lubricant is required, a silicone compound is strongly
recommended. Dow Corning
Watts), is recommended for best possible results. Dow Corning
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 lubricants can cause
swelling in rubber parts, including O-rings and seals.
®
Silicone Compound (available from
®
7
1
Noryl is a trademark of Sabic.
4 PWSRTA Twin Alternating Series Softeners
Pre-Installation Considerations
(continued)
G. Pre Installation and Loading of Media
Systems that are 13” in diameter and larger are not loaded with
media. These systems must be loaded with media before placing
into service. To load a system follow the below steps.
1. Cap the top open end of the distributor tube with tape and
plastic sheeting to keep foreign debris from entering the
distributor tube. This cap must be secure and not come off
during media loading.
2. Place the distributor tube, screen end down, into the mineral
tank and center it in the bottom. The top of the distributor
tube should be flush with the top of the tank. If 4” x 2.5” tank
bushings are used, the distributor tube should be flush with the
top of the tank bushing.
3. Make sure the plastic and tape cap is secure to the top of the
distributor tube, place a funnel on the top of the tank and load
first the gravel (if different sizes of gravel are used load the largest
gravel first, then the smaller gravel) then the resin media into the
tank. The cap must not come off of the distributor tube during
the loading of the media.
4. Remove the plastic cap from the distributor tube. DO NOT
PULL UP ON THE DISTRIBUTOR TUBE when removing the
cap. The distributor tube top must remain flush with the top of
the tank.
5. Clean any media from the threads and top of the mineral tank.
6. Lubricate the O-rings on the bottom of the control valve
(distributor pilot O-ring and top of tank O-ring). Use nonpetroleum based silicone lubricant only.
7. Place the control valve on top of the tank. When doing this step,
seat the top of the distributor tube inside the centered O-ring
sealed port on the bottom of the valve first then press the valve
down until the tank threads come in contact with the valve
threads. This ensures that the distributor tube is properly seated
into the bottom of the control valve. Thread the valve on to the
tank clockwise. Be careful not to cross thread the valve or over
tighten it. A hand tight snug fit is appropriate for the control valve
torque. A wrench is not necessary. Do not use thread sealant or
PTFE tape on the valve base threads.
8. The system is now ready for installation. Follow the Installation
Section in the Installation, Operation and Maintenance Manual.
!
WARNING
Do not exceed water pressure of 120 psi (8.2 bar). Do not
exceed 110°F (43.3°C). Do not subject unit to freezing
conditions.
Installation Instructions
1. Turn off 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 supply to the inlet of the water
conditioning system. While constructing the supply line, install a
master supply valve (user supplied) in the supply line and close it.
6. Connect the feed water line to the home to the outlet of the
system.
7. Plumb the drain line to an appropriate drain abiding by all local,
city, and state codes. Use a 3/4” drain line for backwash flow
rates of 7 gpm or for drain lines of 7 gpm and less that exceed
20’ in length. Use a 1” drain line for backwash flow rates of 10
gpm and 12 gpm.
8. Connect the brine tank to the water softener control valve brine
inlet port using the factory supplied fittings and tubing. Add
enough water to the brine tank so that water covers the top of
the air check. DO NOT ADD SALT AT THIS TIME.
9. Open the user supplied feed water valve. Check for leaks and
repair as needed.
10. Allow the inside hot and cold faucet to remain open until all air
has been purged from the plumbing system. Then close the
faucet.
11. Locate Manual Regeneration Options in this manual to see the
steps to initiate an Immediate Manual Regeneration. Once you
have read that section place the system in backwash and unplug
the system from its electrical outlet once it has cycled into the
backwash position. This will stall the unit in backwash so all air
can be purged from one of the tanks.
12. Adjust the user supplied feed water valve to 1/4 open and place
the bypass valve into the service position.
13. Air will come out of the drain line until the backwashing tank is
completely purged of air. Then water will flow to drain. Allow
water to flow to drain for 15 minutes or until the water to drain is
clear of resin color throw.
14. Plug the system back into the electrical outlet and manually cycle
it through the remaining regeneration steps until it arrives in the
service position.
15. Repeat installation steps 11, 12, 13, and 14 of the General
Installation Instructions to purge the air from the second tank.
16. Check for leaks and repair as needed.
17. Installation is now complete and the system is ready for
programming and one cycle of brine tank refill so that the correct
amount of water is in the brine tank for the first regeneration
cycle. The brine tank refill must be done after programming the
system.
PWSRTA Twin Alternating Series Softeners 5
PWSRTA System Programming
PWSRTA Quick Programming Guide
A quick programming guide has been listed below for convenience specifically for the PWSRTA series water softening systems. For other
programming requirements 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 Softening Applications when called for during valve
programming.
6 PWSRTA Twin Alternating Series Softeners
NOTICE
The Water Softener Capacity of the system needs to be known prior to programming the system, to insure proper programming and
efficiency of system
Chart 1: Setting Time of Day
Press the Set Clock button
Press the Next button to advance
to the minutes.
Press the Next button to set time To Exit
Adjust hour with the UP and Down arrow buttons. There is an AM and PM indicator at the
top of the display
Adjust minutes with the Up and Down arrow buttons.
NOTICE
Once in the programming settings, simply use the UP and DOWN arrow buttons to change values
Chart 2: Master Programming
To enter the Master Programming
mode, press and hold the NEXT
and DOWN arrow buttons simultaneously for 3 – 5 seconds
Press NEXT Button This will take you into 1st Backwash setting and should be set at 8 minutes
Press NEXT Button This will take you into BRINE DRAW setting and should be set at 60 minutes
Press NEXT Button This will take you into 2nd Backwash setting and should be set at 8 minutes
Press NEXT Button This will take you into RAPID RINSE setting and should be set at 6 minutes
Press NEXT Button
Press NEXT Button This will complete Master Programming Steps
The display should read SOFT with an arrow next to the word SET. If FLTr is displayed on
the screen, hit the UP or DOWN arrow to display SOFT. This indicates you are now in the
Master Programming Mode
This will take you into BRINE TANK REFILL setting and should be set at following times
based on your water softener capacity
For 30K Water 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 tank refill) is set at 12 minutes, which is most efficient setting. This can be changed to maximum brining if needed, maximum brining would
be set at 20 minutes.
NOTICE
Next you will need to set up Installer Programming, this MUST be done in addition to the Master Programming
Chart 3: Installer Programming
To enter Installation Display Setting
Programming mode, press and hold
the NEXT and UP arrow buttons
simultaneously for 3 - 5 seconds
Press Next Button
Press Next Button REGEN - Indicated when the system will regenerate, should be read 0”
Press Next Button
Volumetric capacity in gallons to regeneration (will soften 2500 gallons before a regeneration
is queued.
Day Override. Default should be set to 14 Days. Watts Pure Water water softeners regenerate based on water usage, but this day override setting will come into play if the softener sits
idle or has not regenerated and will automatic initiate regeneration on the 14
th
day.
Programming completed, Valve will return to normal mode and will be in service.
If you have additional questions regarding your water softener programming, please contact
Pure Water Technical Support at 1.800.224.1299, then press #2
PWSRTA Twin Alternating Series Softeners 7
Regeneration and Error Screens
Regen Screen
Displays the time remaining in the current cycle. Pressing REGEN advances to the next cycle.
Error Screen
Alternated flashing Err and error code every 3 seconds. Clear by disconnecting
the power supply at the PC board and reconnecting, or press NEXT and REGEN
simultaneously for 3 seconds.
In Alternator Systems when a unit is waiting to initiate the first cycle step of regeneration, “REGEN
Pndg” is displayed.
“STbY” is displayed in Alternator Systems when a valve is in Standby state.
“REGEN Pndg RINSE FILL” is displayed whenever a zero-capacity tank has transferred to an off-line
state and is currently waiting to initiate the second portion of a regeneration cycle. Viewed only when
Delayed Rinse and Fill is set to ON.
Button Operation and Function
Scrolls to the next display.
Pressing once and releasing will schedule a regeneration at the preset delayed regeneration time.
Pressing again and releasing 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
Changes variable being displayed.
Key sequence to lock and unlock program settings.
Holding for 3 seconds initiates a control reset. The software version is displayed and the piston returns
to the home/service position, resynchronizing the valve.
Used with valve type 1.0 , holding for at least 3 seconds causes a switch in the tank in Service without cycling the
regeneration valve. After tank switch, days remaining and capacity remaining status is retained for each tank until the
next regeneration.
Regeneration Cycles and Times
Range
Cycle Softening Filtering Regen
Backwash
Regenerant Draw/Slow Rinse (UP or DN)
Fast Rinse
Regenerant Rell
Regenerant Rell 2.0 or 1.5 set to MIN (softening only)
Service
If 1.5 or 2.0 is selected in Step 2CS, cycles can be set to “oFF”.
The user can initiate manual regeneration. The user has the option to request the manual regeneration at the delayed regeneration time or to
have the regeneration occur immediately:
1. Pressing and releasing the REGEN button. “
regeneration time. The user can cancel the request by pressing and releasing the REGEN button.
2. Pressing and holding the REGEN button for approximately 3 seconds will immediately start the regeneration. The user cannot cancel this
request, except by resetting the control by pressing NEXT and REGEN simultaneously for 3 seconds.
REGEN TODAY
” will flash on the display and the regeneration will occur at the delayed
1-120 minutes
1-180 minutes
1-120 minutes
0.1-200.0 lbs.
0.1-99.0 minutes
1-480 minutes
1-120 minutes
1-180 minutes
1-120 minutes
1-99.0 GAL
0.1-99.0 minutes
NA
Filtering
Backwash
1-120 min.
NA
1-120 min.
NA
NA
NA
8 PWSRTA Twin Alternating Series Softeners
General Operation
User Displays
When the system is operating, one of five displays may be shown. Pressing NEXT will alternate
between the displays shown below.
User 1
Typical user display. Shows volume remaining to regeneration. This screen will not be viewed if the
control is set for time-clock operation.
User 2
Displays number of days to next regeneration.
User 3
Flow Rate.
Displays present flow rate.
Not viewed (along with SOFTENING or FILTERING Icon) if ALT A or ALT b is set in CONFIGURATION 4
and the valve is currently in Standby. When 1.0
the tank currently in Service (“A” or “b”) in the leftmost digit.
is set in CONFIGURATION 1, the display will indicate
User 4
Displays total volume in gallons since last reset. If a meter is not used this display will be shown but 0
will be displayed.
PRESS FOR 3 SECONDS TO RESET TO 0.
User 5
Shows current time.
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 the battery has been depleted and a power outage occurs, or when
daylight saving time begins or ends. If a power outage lasting more than 8 hours occurs, the time of
day will flash on and off which indicates the time of day should be reset. If a power outage lasts less
than 8 hours and the time of day flashes on and off, the time of day should be reset and the battery
replaced.
PWSRTA Twin Alternating Series Softeners 9
Step 1CS
Configuration Settings
Step 1CS – Press NEXT and simultaneously for 5 seconds and release. Press NEXT and simulta-
neously for 5 seconds and release. If the screen in Step 2CS does not appear, the lock on the valve is
activated. To unlock, press , NEXT, and REGEN in sequence, then press NEXT and simultaneously for 5 seconds and release. Press NEXT and simultaneously for 5 seconds and release.
Step 2CS
Step 3CS
Step 4CS
Step 2CS – Use or to select 1.0 for 1” valve, 1.25 for 1.25” valve, 1.5 for 1.5” valve, 2.0 for 2”
valve or 1.0
are selected, press NEXT to go to Step 3CS. Press REGEN to exit Configuration Settings.
for twin valve. If 1.0, 1.25 or 1.0 are selected, press NEXT to go to Step 4CS. If 1.5 or 2.0
Step 3CS – Use or to select meter size. Settings available
are 1.5, 2.0, 3.0, 1.0r (1.0 Remote Meter) or PUL (Variable Meter
Calibration.) Variable meter pulses of 0.1-150.0 PPG can be selected.
Press NEXT to go to Step 4CS. Press REGEN to return to previous
step.
Step 4CS – Selecting the use of an outside signal to initiate a regeneration: Selection only matters if a
connection is made to the two pin connector labeled DP SWITCH located on the printed circuit board.
Following is an explanation of the options:
oFF - feature not used
NOTE: In a twin alternating system each control must have a separate dP signal or 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 PWSRTA control valves programmed for twin alternating: if the dP function “on0” is set, the Delayed
Rinse and Fill feature is not available.
dEL – If the dP switch is closed for an accumulative time of 2 minutes a regeneration will occur at the
scheduled delayed regeneration time. In a twin alternating system once the dP switch is triggered the PC
Board will display “REGEN TODAY” and when the delayed regen time comes the control will switch tanks
and the triggered unit will then go into regeneration. Note: For PWSRTA control valves programmed for
twin alternating: if the dP function “dEL” is set, the Delayed Rinse and Fill feature is not available.
HoLd – If the dP switch is closed a regeneration will be prevented from occurring while there is switch
closure. In a twin alternating system the regeneration of a unit can be prevented upon switch closure. If
the unit depletes the capacity down to zero, it will not be allowed to switch tanks to regenerate until the
switch is open. Note: For PWSRTA control valves programmed for twin alternating the Delayed Rinse and
Fill feature can be set.
Press NEXT to go to Step 5CS. Press REGEN to return to previous step.
10 PWSRTA Twin Alternating Series Softeners
Step 5CS
Step 5CS –
2CS. Allows selection of one of the following using or :
• the Control Valve to have no hard water bypass;
• the Control Valve to act as an alternator;
• the Control Valve to have a separate source during the regeneration
cycle; or
• the Control Valve to operate with the System Controller.
Select OFF when none of these features are used.
Only use Watts No Hard Water Bypass Valves or Watts Motorized Alternating Valves (MAV) with these selections. Watts No Hard Water
Bypass Valves (1” or 1.25” V3070FF or V3070FM) are not designed to be used with the alternator or separate source functions.
Configuring the Control Valve for No Hard Water Bypass Operation:
Select nHbP for control operation. For no hard water bypass operation the three wire communication
cable is not used.
Selection requires that a connection to MAV or a No Hard Water Bypass Valve is made to the two pin
connector labeled MAV located on the printed circuit board. If using a MAV, the A port of the MAV must
be plugged and the valve outlet connected to the B port. When set to nHbP the MAV will be driven
closed before the first regeneration cycle that is not FILL or SOFTENING or FILTERING, and be driven
open after the last regeneration cycle that is not FILL.
This display will not appear if 1.0 was selected in Step
NOTICE
If the control valve enters into an error state during regeneration mode, the no hard water bypass valve
will return to the open Position, if not already there.
Configuring the Control Valve for Separate Source Operation:
Select SEPS for 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
must be connected to the feed water supply.
When set to SEPS the MAV will be driven closed before the first regeneration cycle, and be driven open
after the last regeneration cycle.
NOTICE
If the control valve enters into an error state during regeneration mode, the MAV will return to the open
position, if not already there.
Selecting the Control Valve to act as an alternator:
519.0 and higher = Use 3-wire Interconnect Cables for all communication between units.
518.3 and lower = Use 2-wire Interconnect Cables for twin alternators with independent ow meters.
Prior to starting the programming steps, connect the communication cable to each control valve board’s three pin connector
labeled ‘COMM CABLE’. Also connect the meter cord to either control valve to the three pin connector labeled ‘METER’.
Softener Valve Programming Steps
Set to ALT A
Connect the outlet plumbing of ALT A
Configuration Settings Step 5CS
valve to the MAV’s A port and connect
the MAV’s two pin wire connector to
the two pin connector labeled “DRIVE”
Connect the outlet plumbing of ALT b valve to
the MAV’s B port. No electrical connections are
required between the ALT b valve and the MAV.
on the ALT A valve
Softener System Setup Step 10S Set System Capacity Set System Capacity
Softener System Setup Step 11S Set to ‘AUTO’ Set to ‘AUTO’
Softener System Setup Step 12S Set regeneration time option to ‘on 0’. Set regeneration time option to ‘on 0’.
Installer Display Settings Step 3I Set Day Override to “oFF” Set Day Override to “oFF”
If set up for a lter, in Step 5F set Volume Capacity in Gallons; in Step 6F select Regeneration Time Option “on 0”; and in Step 3I select
Day Override “oFF”.
NOTICE
If the control valve is in an error state during regeneration mode the MAV will close the B port and keep open the A port until the error is
corrected and reset.
PWSRTA Twin Alternating Series Softeners 11
Set to ALT b
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 will
be performed. After all programmed cycles before “Rinse” and “Fill” are completed the control valve will
drive to the service position (displaying “Delayed Rinse + Fill Pending”). When the volume of the on-line
unit is depleted to 10% of its programmed capacity, the control valve will be triggered to finish the second
portion of the regeneration and complete the “Rinse” and “Fill” cycles and return to Service and be placed
into Standby mode, and wait to come on-line for service. Set to oFF to
deactivate this feature.
PWSRTA2
For Watts alternator systems using the PWSRTA2 valve, when NEXT is pressed after selecting ALT
A or ALT B, a display will allow the user to set the amount of pre-service rinse time for the stand by
tank just prior to returning to service. Set to oFF to deactivate this feature. With 1.0
display appears and is set in a similar manner.
set, the same
Retracted
Valve “A” in Service Position =
MAV piston rod Retracted
NOTICE
Watts Twin Alternator Operations
• Twin alternating systems can be programmed with a day override setting combined with the normal volume-based regeneration
programming. A twin alternating system in this conguration will then regenerate based on the volume used or the day override if there
is a period of low water usage.
• Twin alternating systems can be programmed as a time clock only based regenerating system. In this conguration, the days remaining
are counted only on the unit that is in service. The unit in Stand-by Mode only notes days in diagnostics, which results in time clock
only twin regeneration initiation.
• Twin alternating systems can be programmed for a delayed regeneration time. The system will allow an immediate transfer of the MAV
to switch tanks and place a fully regenerated unit in service once a unit becomes exhausted. The exhausted unit will then be placed into
Stand-by Mode and allowed to have a delayed regeneration at the pre-set time.
Extended
Valve “B” in Service Position =
MAV piston rod Extended
12 PWSRTA Twin Alternating Series Softeners
Configuring the Control Valve for System Controller Operation:
Select “SYS” to link 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 Watts No Hard Water Bypass
(V3097/ BSPT or V3098/ BSPT) to the two pin connector labeled MAV located on the printed circuit
board is required.
Press NEXT to go to Step 6CS. Press REGEN to return to previous step.
Step 6CS
EXIT TO DISPLAY SCREENS
Step 6CS – Fill Units: If set as a softener, if Step 2CS is set to 1.5, and FILL is part of the Regeneration
Cycle Sequence, FILL UNITS of MIN or LBS can be selected. Press
NEXT to exit OEM Configuration Setup. Press REGEN to return to previous step.
PWSRTA Twin Alternating Series Softeners 13
OEM Softener System Setup
Step 1S
Step 2S
Step 3S
Step 4S
Step 1S - Press NEXT and simultaneously for 5 seconds and release. If screen in Step 2S does not
appear, the lock on valve programming has been activated. To unlock press , NEXT, , REGEN in
sequence, then press NEXT and simultaneously for 5 seconds and release.
Step 2S – Choose SOFTENING using or . Press NEXT to go to Step 3S. Press REGEN to exit OEM
Softener System Setup.
Step 3S – Choose Brining Direction using or . This screen is not viewed when Step 2S is set to
Filtering. Press NEXT to go to Step 4S. Press REGEN to return to previous step.
Step 4S – Set Refill location using or :
• “PoST” to refill the brine tank after the final rinse; or
• “PrE” to refill the brine tank four hours before 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 5S
Step 6S
Step 7S
Step 8S
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 6S – Select the time for the second cycle using or . For valve types 1.5 and 2.0, “oFF” is also
available.
NOTE: The display will flash between cycle number and time, and brine direction (UP or dn).
Press NEXT to go to Step 7S. Press REGEN to return to previous step.
Step 7S – Select the time for the third cycle using or . For valve types 1.5 and 2.0, “oFF” is also
available.
Press NEXT to go to Step 8S. Press REGEN to return to previous step.
Step 8S – Select the time for the fourth cycle using or . For valve types 1.5 and 2.0, “oFF” is also
available.
Press NEXT to go to Step 9S. Press REGEN to return to previous step.
14 PWSRTA Twin Alternating Series Softeners
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