Daikin RQYQ140-180PY1 Service Manual page 92

Field Setting from Outdoor Unit
Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified
Master Outdoor Unit by Cool / Heat Selector
83
Install the external control adaptor for outdoor unit on either the outdoor-outdoor, indoor-
outdoor transmission line.
Mount the COOL/HEAT selector to the master outdoor unit for the unified control.
Set the DS1-1 on the PCB of master outdoor unit to OUT.
In setting mode 1, set the outdoor unit you want to give cool/heat selection permission to as
the group master, and set the other outdoor units as group slave units.
When multiple external control adaptors are used and cool / heat is selected for each
external control adaptor, use "setting mode 2" and set DS1 and DS2 on the external control
adaptors and the unified cool / heat address on the outdoor unit main PCB to the same
address No. (For details, refer to the following page.).
Multi outdoor units connection
SiBE341001
Test Operation