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WS1TT Drawings and Service Manual
Spacer Stack Assembly
The spacer stack assembly provides the necessary
fl
ow passage for water during the different cycles. The all-plastic spacer stack
assembly (U.S. Patent 6402944) is a one-piece design which allows the stack to be removed using your
fi
ngers.
The exterior of the stack is sealed against the body bore with self lubricating EPDM o-rings, while the interior surface is sealed
against the piston using slippery self cleaning directional (one-way) silicone lip seals. The lip seals are clear in color and have a
special slippery coating so that the piston does not need to be lubricated.
Injector Cap, Screen, Injector Plug and Injector
The screen, injector and/or injector plug(s) are installed under the injector cap in an easy to access location on top of the valve. The
injector cap contains four slots so no water accumulates in the cap. The injector cap is designed to be hand tightened.
Under the injector cap there is an easy to clean removable screen to prevent fouling of the injector. There are two holes under the
injector cap labeled “DN” and “UP”. The holes will be
fi
lled with a plug or an injector.
The plug (Order # V3010-1Z) prevents water from traveling a certain pathway. The injector lets water pass through the pathway.
The self-priming injector increases the velocity of the water, creating a zone of negative pressure that draws in the concentrated
liquid regenerant, such as sodium chloride (brine), potassium permanganate, etc. The regenerant blends with the stream of water,
which passes through the media to regenerate the bed.
The injector provides a consistent regenerant/water mixture ratio over the entire operating pressure range of the control valve. The
injector provides good performance in a variety of applications, which may involve elevated drain lines and long regenerant draw
lengths. Injectors are chosen by knowing the type, amount, and regenerant
fl
ow rate for a particular type of media. Guidelines can
be found in the media manufacturer’s literature. The color coded injectors give different regenerant draw, slow rinse and total
fl
ow
rates over the pressure range. See injector graphs (pages 10-13) for total, slow rinse and draw
fl
ow rates.
The control valve has been manufactured to be one of the following:
•
regeneration downfl ow WS1TT (for softeners or regenerating fi lters install injector in DN location, plug in UP location)
•
regeneration upfl ow WS1TT (upfl ow option is for softeners only, which are not EA, EE or EI control valves. Install
injector in UP location, plug in other hole location)
•
no regenerant WS1TT (both the DN and UP holes have injector plugs installed) and plug installed for the refi ll elbow
NOTE: It is okay to fi eld convert valves from upfl ow to downfl ow and vice versa with the WS1TT valve as long as software
supports upfl ow brine.
Re
fi
ll Flow Control Assembly or Re
fi
ll Port Plug
The re
fi
ll
fl
ow control assembly consists of a re
fi
ll
fl
ow elbow, re
fi
ll
fl
ow control retainer assembly, re
fi
ll
fl
ow control, polytube
insert and nut assembly. The re
fi
ll
fl
ow control retainer
fi
ts in the re
fi
ll elbow. The re
fi
ll
fl
ow control retainer houses the re
fi
ll
fl
ow
control which controls the
fl
ow rate when the regenerant tank is being re
fi
lled. The re
fi
ll
fl
ow control is a
fl
exible washer-like
part with a small ori
fi
ce and a precision molded contour that delivers a steady 0.5 gpm regenerant tank re
fi
ll rate at varying inlet
pressures. Re
fi
ll is accomplished with treated water.
The re
fi
ll
fl
ow control assembly is installed in an easy to access re
fi
ll elbow located on top of the control valve. The re
fi
ll
fl
ow
control assembly is attached to the control valve with a locking clip. The locking clip allows the elbow to rotate 270 degrees so the
outlet can be orientated towards the regenerant tank.
The control valve has a standard re
fi
ll elbow to which a 3/8
”
fl
exible tube can be connected. An optional elbow can be ordered
which accommodates a ½
”
fl
exible tube for a high regenerant draw rate situation (G injectors and larger). Both elbows use the same
re
fi
ll
fl
ow control and retainer.
If the control valve is to be used as a non-regenerant
fi
lter control valve, the re
fi
ll elbow is removed and replaced with a re
fi
ll port
plug P/N V3195-01.
