Daikin VRV III RXYQ5-54PY1 Service Manual page 198

Si34-601A
Set Cool / Heat Separately for Each Outdoor Unit System by Cool / Heat Selector
Test Operation
It does not matter whether or not there is outdoor - outdoor unit wiring.
Set outdoor unit PC board DS1-1 to OUT (factory set).
Set cool/heat switching to IND (individual) for "Setting mode 1" (factory set).
Field Setting
187