Daikin E-Series Service Manual page 157

Field Setting
Set Cool / Heat Separately for Each Outdoor Unit System by Cool/Heat Switching Remote Controller
144
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).
SiAU18-715
Test Operation