Trane CXAJ series Installation, Operation And Maintenance Manual page 40

Module Control System
the network, and adjust the mode and the temperature;
Timing operation (comfort control): the centralized controller can respectively set the
temperature values at different times of each day to meet the needs of comfort level according
to the working days and the holidays within one week.
Network monitoring: the centralized controller can monitor all units on the network. When a
unit is offline, the centralized controller immediately instructs the offline unit number and gives
an alarm; when one or more units fail, the centralized controller immediately displays the fault
code and gives an alarm; the centralized controller can directly shut down all faulty units on the
network.
System control: when the centralized controller and the indoor and outdoor units form a small
water system and one or more indoor units are started, the network system will automatically
start up the outdoor units; when all indoor units are shut down, the network system will
automatically shut down the outdoor units.
Remote control: the startup and shutdown, the set temperature adjustment, the mode
adjustment, etc. of each unit can be performed by phone.
Definition of Switch Functions
SW1-1
SW1-2
SW1-3
SW1-4
SW1-5
SW1-6
SW1-7
SW1-8
Note: this unit requires:
SW1-1 must be set to "ON" position;
SW1-2 must be set to "OFF" position;
SW1-5 must be set to "ON" position;
SW1-6 must be set to "OFF" position.
Operation of centralized controller
Network binding
In case the controller is not connected with the network:
After being powered on, the centralized controller is not connected with any control panel and
the displays time and room temperature (water temperature) at this time; the square brackets
will be displayed at the number position of the air conditioning unit and will be displayed in a
mobile way, indicating that the centralized controller is searching for the control panel connected
to the network cable, as shown in the figure below:
40
OFF
Indoor unit and outdoor unit
interlocked control
Reserved
Total number of units is displayed
It is inactive as the thermostat of indoor
unit
Commercial mode
HEAT locking is inactive
Reserved
Backlit is turned on by any button
ON
Indoor unit and outdoor unit not
interlocked control
Loop browsing is displayed
It is active as the thermostat of indoor
unit
Residential mode
HEAT locking is active
Backlit is turned on by Button ⑧