Daikin 2MXS-W Series Service Manual page 260

Field Settings
Wireless Remote
1. Remove the cover and take it off.
2. Cut the address setting jumper.
Controller
ARC452 series
Caution
Replace the remote controller if you cut a jumper unintentionally.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
254
Jumper
ADDRESS
EXIST
1
CUT
2
ARC466 series
Jumper (J4)
ADDRESS
EXIST 1
CUT 2
(R12065)
∗ Do not cut the left jumper.
Part 7 Trial Operation and Field Settings
SiUS122226E
(R18416)