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KNX - Daikin A.C. (SKY & VRV line)
2. Connection
Connection of the DK-RC-KNX-1i to the AC indoor unit
2.1 DK-RC-KNX-1i without DAIKIN Remote Controller
The DK-RC-KNX-1i can be connected directly to the P1/P2 bus of the indoor unit (no Daikin
remote controller -RC from now on- also connected in the P1 P2 bus). If this is the case, DK-
RC-KNX-1i must be configured as master (using the ETS software), see connection diagram
below.
2.2 DK-RC-KNX-1i with DAIKIN Remote Controller
If a Daikin remote controller (RC) is present and connected to the P1/P2 bus, there are two
configuration options:
If we want to use the RC as master, its PCB switch must be set at "M" position and the
DK-RC-KNX-1i must be configured as slave.
If we want to use the RC as slave, its PCB switch must be set at "S" position and the
DK-RC-KNX-1i must be configured as master.
Check compatible Daikin remote controllers in the link provided in section 6.
Figure 2.1 Daikin RC PCB backside, MAIN/SUB switch
Special mention must be made with the use of Daikin's IR wireless remote controllers, in this
case Daikin's IR must be slave and the DK-RC-KNX-1i must be master, otherwise not all the
features will be available from KNX.
Disconnect mains power from the AC unit and use a 2 wire cable with a diameter of 0.75mm
to 1.25mm
2
for the connection of DK-RC-KNX-1i, Daikin's remote controller and its
corresponding indoor unit. Screw the suitably peeled cable ends in the corresponding P1/P2
terminals of each device, as summarized in the Figure 2.2.
Maximum P1/P2 bus length is 500 meter. DAIKIN RC and DK-RC-KNX-1i are polarity
insensitive.
Connection of the DK-RC-KNX-1i to the KNX bus:
Disconnect power of the KNX bus. Connect the DK-RC-KNX-1i to the KNX TP-1 (EIB) bus using
the KNX standard connector (red/grey) of the DK-RC-KNX-1i, respect polarity.
Reconnect power of the KNX bus, and mains power of the AC unit.
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User's manual r1.0 eng
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