7
3
Graphics Screen
The Graphics Screen allows you to observe the changes in
various readings while the heater operates (see FIG. 3-1).
Note that the vertical scale has two numbers for each division.
By default, the Outlet Temperature, Inlet Temperature, System
Supply Temperature (if connected), Outdoor Temperature (if
connected), Tank Sensor Temperature (if connected), Space
Heating setpoint, Tank setpoint, 0-10Vdc input voltage, and
fan speed are plotted.
In addition, the status of the Gas Valve Output, Flame
Current, and Pump Outputs are indicated by horizontal lines.
When these readings are off, the line is thin; when on, the line
is wide. Any of these readings can be removed from the graph
by deselecting them at the bottom of the window. The
current values of these readings are also displayed at the
bottom of the window as depicted in FIG. 3-1.
The time scale and vertical (Y) scale can be changed by
clicking on the
Options
button to get the Options window,
and then the
Up
or
Down
buttons for the desired scale. The
top number represents °F, and the bottom number represents
°C. Press the
Ok
button to close the Options window. The
background color of the Graphics Screen can be changed by
pressing the
Display
button on the Options window.
Figure 3-1
SMART TOUCH Graphics Screen
As with the Status Screen, a log file can be generated to record
the performance of the appliance. Click on the
Options
button
to open the Options window. Click on the
LogFile
button to
create a file name and define the folder in which to put it. Once
a Log File is defined, click on the
Log
button to start logging the
readings. The
Log
button will turn green to indicate that the
program is logging, and the log file size will appear at the top of
the Graphics Screen window. Note that the file size will increase
as more readings are logged. Click on the
Log
button again to
stop logging of the readings. The
Log
button will turn gray
again to indicate that logging has stopped.
A bitmap can also be generated of the Graphics Screen. Click
on the
Options
button, and then the
Bitmap
button. A bitmap
of the window will be saved into the C:/program files/SMART
TOUCH PC/ENCONFLS directory.
PC Program Instructions