Display Screens; Basic Screen Format - Trane CGAM Installation & Operation Manual

Controls Interface

Display Screens

Basic Screen Format

The basic screen format appears as:
File folder tabs
Page scroll
(up)
Contrast control
(lighter)
Radio buttons
The file folder tabs across the top of the screen are used to
select the various display screens.
Scroll arrows are added if more file tabs (choices) are
available. When the tabs are at the left most position, the
left navigator will not show and only navigation to the right
will be possible. Likewise when the right most screen is
selected, only left navigation will be possible.
The main body of the screen is used for description text,
data, setpoints, or keys (touch sensitive areas).The Chiller
Mode is displayed here.
The double up arrows cause a page-by-page scroll either
up or down.The single arrow causes a line by line scroll to
occur. At the end of the page, the appropriate scroll bar will
disappear.
A double arrow pointing to the right indicates more
information is available about the specific item on that
same line. Pressing it will bring you to a subscreen that will
present the information or allow changes to settings.
The bottom of the screen (Fixed Display) is present in all
screens and contains the following functions.The left
circular area is used to reduce the contrast/viewing angle
of the display.The right circular area is used to increase
the contrast/viewing angle of the display.The contrast
may require re-adjustment at ambient temperatures
significantly different from those present at last
adjustment.
The other functions are critical to machine operation.The
AUTO and STOP keys are used to enable or disable the
chiller.The key selected is in black (reverse video).The
chiller will stop when the STOP key is touched and after
completing the Shutting Down mode.
Touching the AUTO key will enable the chiller for active
cooling if no diagnostic is present. (A separate action must
be taken to clear active diagnostics.)
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Tab navigator
Page scroll
(down)
Line scroll
(up/down)
Contrast control
(darker)
The AUTO and STOP keys, take precedence over the Enter
and Cancel keys. (While a setting is being changed, AUTO
and STOP keys are recognized even if Enter or Cancel has
not been pressed.)
The ALARMS button appears only when an alarm is
present, and blinks (by alternating between normal and
reverse video) to draw attention to a diagnostic condition.
Pressing the ALARMS button takes you to the
corresponding tab for additional information.
Auto, Stop/Immediate Stop
The Auto and Stop keys will be presented as radio buttons
within the persistent key display area.The selected key
will be black.
The chiller will stop when the Stop key is touched, entering
the Run Unload mode. An informational screen will be
displayed for 5 seconds indicating that a second
depression of an "Immediate Stop" key during this time
period will result in an immediate stop. Pressing the
"Immediate Stop" key while the immediate stop screen is
displayed, will cause the unit to stop immediately,
skipping operational pumpdown.
NOTICE:
Equipment Damage!
Do NOT enable/disable the chiller by removing water
flow or equipment damage can occur.
Touching the Auto key will arm the chiller for active cooling
if no diagnostic is present. As in UCP2, a separate action
must be taken to clear active diagnostics.
The AUTO and STOP , take precedence over the ENTER and
CANCEL keys. (While a setting is being changed, AUTO
and STOP keys are recognized even if ENTER or CANCEL
has not been pressed.
Diagnostic Annunciation
When an active diagnostic is present, an Alarms key will be
added to the persistent display area.This key will serve
two purposes.The first purpose will be to alert the
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