-3-
C-Series 1" & 1-1/4" WS1 Manual
Control Valve Function & Cycles of Operation
This glass filled 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
filter. When the WS1 or the WS1.25 control valve is
manufactured as a softener, the control valve can be
ordered to perform downflow or upflow regeneration.
When the WS1 or WS1.25 control valve is set up as a
filter, the control valve can be set to perform downflow
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
Association (WQA) Standard S100 or NSF/ANSI Standard
44 efficiency rating.
It is not recommended to change control valves from
downflow to upflow brining or vice versa in the field.
The valve bodies for downflow and upflow are unique to
the regeneration type 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 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.
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
firmly 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 comparable products
currently on the market. 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.
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 flashes 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 downflow softener, two backwashes
always occur. When the WS1 or WS1.25 control valve
is used as an upflow softener, only one backwash
occurs after brining. The OEM has the option of having
the regenerant refill after the rinse cycle or have the
regenerant prefill before regeneration. If the OEM chooses
to have the regenerant prefill before regeneration, the
prefill 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, prefill option selected,
downflow softener. Fill occurs at 12:00 a.m., start of
backwash cycle occurs at 2:00 a.m.
When set up as a softener the backwash and rinse cycles
automatically increase with increasing salt dosage.
Backwashes can be set to be NORMAL or LONGER. The
option selected will apply to all backwashes. Tables 2 and
3 show the length of the cycles when the valve is set up
as a softener.
Table 1 - Regeneration Cycles Softening
1
Noryl is a trademark of Sabic Innovative Plastics IP B.V. Company
1st 2nd 3rd 4th 5th 6th
Cycle Cycle Cycle Cycle Cycle Cycle
WS1 & WS1.25 Downflow Regenerant Refill After Rinse
Backwash Regen
Backwash
Rinse Fill/Dissolve Service
WS1 & WS1.25 Downflow Regenerant Prefill
Fill/Dissolve Backwash
Regen
Backwash
Rinse
Service
WS1 & WS1.25 Upflow Regenerant Refill After Rinse
Regen Backwash
Rinse Fill/Dissolve Service
N/A
WS1 & WS1.25 Upflow Regenerant Prefill
Fill/Dissolve Regen
Backwash
Rinse
Service
N/A
