Daikin VRV RXYQ72-384XAYCA Service Manual page 74

Main/Sub Setting
3.2.2 Designating a Controller as Main or Sub
Prerequisite: A remote controller is already connected to the indoor unit.
Connect a second controller.
After turning on the power, perform setting of the second controller.
Result: It will start up automatically.
U5
INFORMATION
If sub remote controller is not set at power-on in the case of one indoor unit controlled by two remote
controllers, Error Code: U5 is displayed in the connection checking screen.
If the sub remote controller does not display the home screen two minutes after its designation, turn
off the power and check the wiring.
67
Home screen
Wait for a U5 or U8 error code to appear on the screen.
Screen display explanation
1 main
1
2 sub
Home screen
When the U5 error code appears, press
"2" appears on the screen.
When the U8 error code appears, press
2
"1" appears on the screen.
Result:
A controller displaying 1 is set as main, and a controller
displaying 2 is set as sub.
SiUS342004EB
and hold until
and hold until
Part 3 Remote Controller