Trane CXAJ series Installation, Operation And Maintenance Manual page 41

In case the controller is connected with the network but there is any key operation:
After the control panel is connected to the network, firstly search for the control panel. In the
searching process, the square brackets will be still displayed at the number position of the air
conditioning unit and will be displayed in a mobile way. After searching is ended, the quantity
of control panels will be displayed at the number position of the air conditioning unit. The mode
of No.0 unit will be displayed at the mode position. If more than one connected units are started
up, there will be a startup indication "ON"; if all connected units are shut down, there will be a
shutdown indication "OFF", as shown in the figure below:
If the key ⑦ (Connect) is pressed for more than 1 second, the centralized controller will search
for the unit again, the results in the above figure will be displayed.
Fast Query
When the key ① (Browse) for more than 1 second, the display screen will display the operating
state of the unit with the minimum number. Then automatically increase the unit number (the
automatically increased speed can be adjusted) to continue to browse downward. When the key
" ∨ " is pressed, the increase of unit number will be stopped; when the key " ∨ " is pressed,
the unit number will be increased; when the unit number stops increasing, and the key " ∧ " is
pressed, the unit number will be reduced by 1 to reversely display other units. If the key Exit is
pressed, quit browsing. See the following figure:
C
C
SET
NO.
Flash display
NO.
Online Unit number
Z
Module Control System
Quantity of
connected units
All units on the
network are shut down
OFF
Z
Z
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