Terminal Unit Control (TUC)
Service
Communication
Wiring
Zone Sensor
Module
Terminal Unit Controller Start-Up
Establish service communication to the TUC by connecting a twisted wire pair to one of the following connection points.
·Remote zone sensor module
·Low voltage terminal strip inside the control panel
This will allow the technician to view and edit the TUC configuration and troubleshoot the unit. However, control options ordered and the wiring practice followed in the field may limit the communication ability.
Route interconnection wiring from the TUC to provide service commu- nication at the
Zone sensors without interconnecting wiring:
Establish service communication to the TUC by wiring to the low voltage terminal strip inside the control box. Reference the unit wiring schematic for the appropriate communication terminals on the low voltage terminal strip. Maintain the correct polarity throughout the communication wiring circuit.
Once wiring is complete, use Trane EveryWareä software to commu- nicate to the TUC. The comm4 connection can be made by the telephone style RJ 11 connector (Western Electric #616 or equivalent) on the zone sensor module and the computer using EveryWareä .
Refer to Trane publication,
Follow the procedure below to operate the TUC in a
1.Turn power on at the disconnect switch option.
2.Position the fan mode switch to either high, medium, low, or the auto position.
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