Q-SERIES DI HEATER OPERATION / MAINTENANCE MANUAL
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5
HEATER OPERATION
The Q-Series DI water heater is very easy to operate locally via a built-in
graphical user interface or remotely through an external hardware
interface. Simply choose a temperature set point and let the controls do
the rest.
If the heater encounters a problem, the on-board controller will notify the
operator that the heater requires attention (see section 6 for details of
system interlocks). After the fault condition is corrected, the heater can
be reset using the blue RESET button located on the front of heater to
resume normal operation.
This section outlines the detailed instructions for operating the heater
locally and remotely.
5.1 BACKGROUND COLOR CONVENTIONS FOR BUILT-IN
GRAPHICAL USER INTERFACE
The graphical user interface displays the following background colors to
provide visual indication of the heater’s:
Green
– OK status. All process interlocks are cleared and the heater is
ready to heat water.
Red
– Fault status. A fault condition is present (see sections 5.2.b and 6).
The heater cannot heat water until the fault condition is cleared.
Orange
– Emergency Off status (EMO). The EMO button on the heater
has been engaged.
Yellow or Light Green
– Reset status. The blue RESET button on the
front of the heater must be pressed before the heater can heat water.
5.2 LOCAL OPERATION THROUGH BUILT-IN GRAPHICAL
USER INTERFACE
A display panel located on the front of the heater provides an intuitive
graphical interface to the DI water heater. This interface is divided into
four pages which have been designed to be simple to use and easy to
understand. Buttons located at bottom of the display panel are used for
both navigating between screens and changing values for inputs such as
temperature set point. The following sections describe each page in the
graphical user interface in detail.
