Daikin RQYQ140-180PY1 Service Manual page 91

SiBE341001
Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified
Master Outdoor Unit by Indoor Unit Remote Controller
Test Operation
Install the external control adaptor for outdoor unit on either the outdoor-outdoor, indoor-
outdoor transmission line.
Set outdoor unit PCB DS1-1 to IN (factory set).
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.
Set the outdoor unit external control adaptor SS1 to BOTH (factory set) or C/H, and SS2 to
OFF (factory set).
Multi outdoor units connection
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.)
Field Setting from Outdoor Unit
82