Daikin One+ Reference Manual page 15

Daikin One +
4 pin
Indoor Unit
4 pin
Outdoor Unit
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Note: The Daikin One+ is labeled 1, 2, C, R.
If wired incorrectly you will receive a
communication error, or your equipment may
not be recognized and displayed.
1 2 C R
1 2 R C
1 2 R C G
1 2 R C
1 2 R C W1
Communicating indoor units with a 4 pin
connector supplied, will match 1, 2, R,
C on the 4 pin with 1, 2, R, C on the
indoor PCB.
Communicating outdoor units with a
4 pin connector supplied, will match
1, 2 on the 4 pin with 1, 2 on the
outdoor PCB.
W1 W2 Y1 Y2 O
Y1 Y2 L O
DE
HUM
15