Wiring Best Practices - Trane Tracer Uc

Figure 1. BACnet MS/TP Link Wiring
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Tracer SC
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Trane BACnet terminator

Wiring Best Practices

To ensure proper network communication, follow the recommended wiring and best practices
below when installing communication wire:
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Note: For more details, refer to the Unit Controller Wiring for the Tracer SC™ System Controller
VAV-SVX07B-EN
BI LINK
AI AI AI AI AI
UC400
Sensor
All wiring must comply with the National Electrical Code™ (NEC) and local codes.
Ensure that 24 Vac power supplies are consistent in regards to grounding. Avoid sharing 24 Vac
between controllers.
Avoid over tightening cable ties and other forms of cable wraps. This can damage the wires
inside the cable.
Do not run communication cable alongside or in the same conduit as 24 Vac power. This
includes the conductors running from TRIAC-type inputs.
In open plenums, avoid running wire near lighting ballasts, especially those using 277 Vac.
Use same communication wire type, without terminators, for the zone sensor communication
stubs from the UC400 controller IMC terminals to the zone sensor communication module.
Zone Sensor communication wiring length limits of 300 ft. (100 m).
Wiring Guide (BAS-SVN03).
IM
+
VDC
IMC BI LINK IMC
AI AI AI AI AI
P P
LINK IM
TX
RX
SERVI
SERVICE TOOL
UC400
Zone Zone
Sensor
+ +
VDC VDC
BI BI LINK LINK IMC IMC
AI AI AI AI AI AI AI AI AI AI
P P P P
TX TX
RX RX
SERVICE TOOL SERVICE TOOL
Wiring Installation
IM
+ +
VDC VDC
BI LINK IMC
AI AI AI AI AI
P P P P
LINK IM
TX
RX
SERVI
SERVICE TOOL
UC400
Zone
Sensor
Zone sensor
communications
IM IM jack wiring
LINK LINK IM IM
SERVI SERVI
IM
+
LINK IM
TX
RX
SERVI
SERVICE TOOL
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