Page 4 WS1 & 1.25 Man u al
Control Valve Function and Cycles of Operation
This glass lled Noryl
1
(or equivalent) fully automatic control valve is designed as the primary control center to direct and
regulate all cycles of a water softener or lter. When the WS1 or the WS1.25 control valve is manufactured as a softener, the
control valve can be ordered to perform down ow or up ow regeneration. When the WS1 or WS1.25 control valve is set up
as a lter, the control valve can be set to perform down ow regeneration or simply backwash. The control valve can be set
to regenerate on demand (consumption of a predetermined amount of water) and/or as a time clock (passage of a particular
number of days). The control valve can be set so that a softener can meet the Water Quality As so ci a tion (WQA) Standard
S100 or NSF/ANSI Standard 44 ef ciency rating.
It is not recommended to change control valves from down ow to up ow brining or vice versa in the eld. The valve bodies for
down ow and up ow are unique to the regeneration type and and should not be interchanged. A mismatch of valve body and
regeneration piston will result in hard water bypass during service.
The control valve is compatible with a variety of regenerants and resin cleaners. The control valve is capable of routing the
ow of water in the necessary paths to regenerate or backwash water treatment systems. The injector regulates the ow of
brine or other regenerants. The control valve regulates the ow rates for backwashing, rinsing, and the replenishing of treated
water into a regenerant tank, when applicable.
The control valve uses no traditional fasteners (e.g. screws); instead clips, threaded caps and nuts and snap type latches are
used. Caps and nuts only need to be rmly hand tightened because radial seals are used. Tools required to service the valve
include one small blade screw driver, one large blade screw driver, pliers and a pair of hands. A plastic wrench is available
which eliminates the need for screwdrivers and pliers. Disassembly for servicing takes much less time than com pa ra ble
products currently on the market. Control valve in stal la tion 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.
The AC adapter power pack comes with a 15 foot power cord and is designed for use with the control valve. The AC adapter
power pack is for dry location use only. The control valve remembers all settings for up to 8 hours if the power goes out and
the battery is not depleted. After 8 hours, the only item that needs to be reset is the time of day; other values are permanently
stored in the nonvolatile memory. If a power loss lasts less than 8 hours and the time ashes on and off, the time of day
should be reset and the non rechargeable battery should be replaced.
Table 1 shows the order of the cycles when the valve is set up as a softener. When the WS1 or WS1.25 control valve is used
as a down ow softener, two backwashes always occur. When the WS1 or WS1.25 control valve is used as an up ow softener,
only one backwash occurs after brining. The OEM has the option of having the regenerant re ll after the rinse cycle or
have the regenerant pre ll before re gen er a tion. If the OEM chooses to have the regenerant pre ll before regeneration, the
pre ll starts two hours before the re gen er a tion time set. During the 2-hour period in which the brine is being made, treated
(softened) water is still available. For example: regeneration time = 2:00 am, pre ll option selected, down ow softener. Fill
occurs at 12:00 a.m., start of backwash cycle occurs at 2:00 a.m.
WS1 & WS1.25 Downfl ow
Regenerant Refi ll After
Rinse
WS1 & WS1.25 Downfl ow
Regenerant Prefi ll
WS1 & WS1.25
Upfl ow Regenerant
Refi ll After Rinse
WS1 & WS1.25
Upfl ow Regenerant
Prefi ll
1
st
Cycle: Backwash
2
nd
Cycle: Regenerate
3
rd
Cycle: Backwash
4
th
Cycle: Rinse
5
th
Cycle: Fill/Dissolve
6
th
Cycle: Service
1
st
Cycle: Fill/Dissolve
2
nd
Cycle: Backwash
3
rd
Cycle: Regenerate
4
th
Cycle: Backwash
5
th
Cycle: Rinse
6
th
Cycle: Service
1
st
Cycle: Regenerate
2
nd
Cycle: Backwash
3
rd
Cycle: Rinse
4
th
Cycle: Fill/Dissolve
5
th
Cycle: Service
1
st
Cycle: Fill/Dissolve
2
nd
Cycle: Regenerate
3
rd
Cycle: Backwash
4
th
Cycle: Rinse
5
th
Cycle: Service
Table 1
Regeneration Cycles Softening
1
Noryl is a trademark of Sabic Innovative Plastics IP B.V. Company
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