Bypass Valve; Blending Valve - A.O. Smith TRIASOFT MINI User Manual

Bypass Valve

Your appliance is equipped with a bypass valve. The bypass valve can isolate the appliance
should the appliance malfunction or leak. It can also permit the use of untreated water for
watering plants, shrubs, or lawns.
The bypass is located on the main control valve (Diagram 17). To engage the bypass, turn the
knob to the "Bypass" position. The appliance will be bypassed and all water to the home is
raw, untreated water. To prevent untreated water from entering the home, water should not
be used inside the home when the appliance is in Bypass mode. Ensure that the appliance is
returned to "Service" mode when the appliance is repaired or the use of untreated water is
complete by turning the knob to "Service".
To blend hardness back into the water using the bypass, turn the knob slightly from the
"Service" position toward the "Bypass" position.
Diagram 17: Bypass Valve

Blending Valve

In standard the product came in with bypass valve and no blending valve.
In some situations the ¾" or 1" I/O Adapter Assembly may come with a blending valve
may be desired. The amount of hardness blended back into the water line is determined by
Blending Valve
the hardness of the incoming water and the setting of the blending valve. Where extremely
hard water is present, the blending valve may only need to be "cracked" open. Where the
incoming water has relatively low levels of hardness, the blending valve will need to be
opened further.
The blending valve is located between the input and output connections on the top of the
¾" or 1" I/O Adapter Assembly (Diagram 18).
It is adjusted by placing a flat blade screwdriver in the slot provided and turning clockwise to
open. Total movement of the blending valve from full closed to full open is 1/4 revolution.
Precise setting of the blending valve will require "trial and error" testing. The initial setting
should be conservative. Because of the blending valve's ease of access and adjustment, you
can increase or decrease the setting according to your preference over a period of time.
Diagram 18: Adjusting Blending Valve
Use of the blending valve is not recommended where objectionable concentrations of
ferrous iron or sediment are present. Because the blending valve is mixing "raw" water
with softened, any ferrous iron or sediment in the "raw" water will also be blended and
reintroduced into the softened water line.
Note: If the appliance is installed for barium and/or radium reduction, the blending valve
must remain in the fully closed position at all times.
TR 21