Trane LO - Manual (Page 89)

UNT-IOM-6 89
Terminal Unit
Control (TUC)
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 wall-mounted zone sensor module. Install wiring by
referencing the unit wiring schematic and Table 3 on page 35 for
appropriate wire sizes. After wiring is complete, connect the comm4
port on the zone sensor module with a telephone style RJ 11 connec-
tor (Western Electric #616 or equivalent). Run the telephone style
connector to a laptop computer running Trane EveryWareä software
to establish communication.
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, EMTX-IOP-1 Installation Operation Pro-
gramming Guide, to operate the TUC with Trane Integrated Comfort sm
System (ICS). The factory pre-programs the TUC with default values
to control the temperature and unit air flow. Use Tracer ® building
automation system or EveryWareä software to change the default
values.
Follow the procedure below to operate the TUC in a stand-alone
operation.
1. Turn power on at the disconnect switch option.
2. Position the fan mode switch to either high, medium, low, or the
auto position.
Service
Communication
Wiring
Wall-Mounted
Zone Sensor
Module
Terminal Unit
Controller Start-Up