Trane TVR Pro CO Series Service Manual page 79

Notes:
1. Compressor inverter module address is set through dial switch S7 on the inverter module. The compressor inverter module A/B location refers to the
wiring diagram.
2. Communication wire from outdoor main PCB CN26 to inverter module CN8/CN9.
3. LED1/2 on inverter module
4. Check the power supply for the compressor inverter module, the normal voltage between CN6( L1) and CN7( L2), L1(CN6) and L3(CN11), and L2(CN7) and
L3(CN11) is 198-242V.
S7 on inverter module
Communication port CN26 on main PCB
v
Inverter module address
0 for compressor inverter module A
1 for compressor inverter module B
Communication port CN8/CN9 on inverter module
78