Page 4 WS1CS & WS1.25CS Manual
Control Valve Function and Cycles of Operation
This glass fi 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 fi lter. When the WS1CS or WS1.25 control valve is manufactured as a softener, the control valve
can be ordered to perform downfl ow or upfl ow regeneration. When the WS1CS or WS1.25CS control valve is set up as a fi lter,
the control valve can be set to perform downfl 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
effi ciency rating.
It is not recommended to change control valves from downfl ow to upfl ow brining or vice versa in the fi eld. The valve bodies
for downfl ow and upfl 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 fl ow
of water in the necessary paths to regenerate or backwash water treatment systems. The injector regulates the fl ow of brine or
other regenerants. The control valve regulates the fl 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 fi 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 fl 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. The OEM has the option of having the regenerant refi ll
after the rinse cycle or have the regenerant prefi ll before regeneration. If the OEM chooses to have the regenerant prefi ll before
regeneration, the prefi ll starts two hours before the regeneration 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, prefi ll option selected, downfl ow softener.
Fill occurs at 12:00 a.m., start of backwash cycle occurs at 2:00 a.m. Tables 2 and 3 show the length of the cycles when different
program codes are selected.
1
Noryl is a trademark of Sabic Innovative Plastics IP B.V. Company
Table 1
Regeneration Cycles Softening
WS1CS & WS1.25CS
Downfl ow Regenerant
Refi ll After Rinse
WS1CS & WS1.25CS
Downfl ow Regenerant
Prefi ll
WS1CS & WS1.25CS
Upfl ow Regenerant
Refi ll After Rinse
WS1CS & WS1.25CS
Upfl ow Regenerant
Prefi ll
1
st
Cycle: Backwash
2
nd
Cycle: Regenerate
3
rd
Cycle: Second
Backwash*
4
th
Cycle: Rinse
5
th
Cycle: Fill/Dissolve
6
th
Cycle: Service
1
st
Cycle: Fill
2
nd
Cycle: Service
3
rd
Cycle: Backwash
4
th
Cycle: Regenerate
5
th
Cycle: Second
Backwash*
6
th
Cycle: Rinse
7
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
2
nd
Cycle: Service
3
rd
Cycle: Regenerate
4
th
Cycle: Backwash
5
th
Cycle: Rinse
6
th
Cycle: Service
*Second Backwash is optional
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