Nucleus Digitally Controlled Mixing Valve User Interface
The Nucleus Digitally Controlled Mixing Valve consists of an electronics box that is simplistic in
design and has a user interface that is intuitive. The Overlay pictured above is a graphical
representation of a typical plumbing system where a Digital Thermostatic Mixing Valve
provides mixed hot water to the plumbing system. At key locations on the diagram, there are
6 LED indicators that provide system status either “within range” (Green) or “out of range”
(Red) and they are as follows:
Inlet Hot Water Pressure (P1), Inlet Hot Water Temperature (T1), Inlet Cold Water Pressure
(P2), Inlet Cold Water temperature (T2), Mixed Water Temperature Sensor (T3), and Return
Water Temperature Sensor (T4).
Above the Overlay is a 2 Line, 16 character LED digital display screen, which serves as the User
Interface by utilizing a simple 3-button keypad interface:
▲
,
▼
and ENTER
On Initial Power up, the valve will go through a full sweep function, which moves the motor its
full travel, end-to-end of hot and cold ports of the valve body. This process assigns a
numerical value to the distance travelled by the motor, in steps, that will be used in future
comparisons to indicate if there is a potential maintenance problem or internal mechanical
issue with the components of the valve.
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