Led Description, Activities, And Troubleshooting - Trane Tracer UC400 Installation, Operation And Maintenance Manual

LED Description, Activities, and Troubleshooting

LEDs are used to provide controller serviceability. The UC400/UC400–B has the following LEDs
located on the front. Refer to the legend in the second image in the figure below for LED
placements.
•
•
•
•
Figure 16. LEDs for UC400 and UC400-B
There are 15 LEDs on the front of the UC400 controller. The following table provides a description
of LED activities, an indication or troubleshooting tip for each, and any relative notes.
36
Marquee LED.
Communication status LEDs and IMC status LEDs.
Service button LED.
Three (3) binary output relay and nine (9) TRIAC status LEDs.
Marquee LED
LINK IM C
TX
RX
SERVI C E
BO1 BO2 BO3 BO4 BO5 BO6 BO7 BO8
BAS-SVX48H-EN
BO9