Trane TVR Pro CO Series Service Manual page 51

3.2 Layout
Figure 5-3.2: Compressor inverter module components
LED indicators LED1 and LED2
Table 5-3.2: LED indicators LED1 and LED2
Indicator
Inverter module operating indicator. Continuously on if the compressor is running normally and
LED 1
flashing if an inverter module error has occurred
LED 2 Inverter module error indicator. Continuously on if an inverter module error has occurred
Note:
1. If an inverter module error occurs, refer to Part 6, "Xh4 Troubleshooting". The error code is displayed on the digital display.
Dial switch S7 setting
Dial switch S7 is used to set compressor inverter module A/B address. The compressor inverter module A/B location refers
to the wiring diagram.
LED indicator function and status
.
1
S7 on inverter module
0 for compressor inverter module A
1 for compressor inverter module B
50
Inverter module address
.
1