Trane 4TVH0086FE000AA Service Manual page 95

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, port CN41 on filter board, the normal voltage should be DC310V; check the high pressure
switch connection port CN61 on filter board, the normal resistance should be zero; Check the single phase bridge and fuse on filter board; check the
connection cable from ODU main PCB port CN82 to filter board port CN30 which is DC310V power control port.
CN41 Power for
Compressor inverter
S7 on inverter module
Communication port CN26 on main PCB
pressure switch
SMPS of
connection port
Inverter module address
0 for compressor inverter module A
1 for compressor inverter module B
Communication port CN8/CN9 on inverter module
CN30
CN61 High
94
Fuse 30A