Wire The Indoor Unit; Attach The Upper Case - Daikin BRC073A1 Installation And Operation Manual

5. Securing the user interface adapter
Remove the upper case of the user interface adapter and secure the
lower case assembly.
2
1
Mounting with supplied wood screws
(Ø3.5×16)

6. Wire the indoor unit

For detailed instructions refer to the installation videos available on
http://www.daikineurope.com/support-and-manuals/product-
information/. More specifically, for how to connect the S21 connector,
refer to the installation videos of the Daikin online controller.
3 methods:
1 from the rear,
2 from the left,
3 from the top,
1
BRCW901A
PCB
S1
1× 1×
3
2 BRCW901A
PCB
S1
1×
3
BRC073A1
Wired user interface
4P392190-1 – 2014.11
3
Mounting with supplied double-face
adhesive tape
S19 S21
1
S6
PCB
2
S19 S21
1
S6
PCB
2
BRCW901A
3
3
PCB
S1
1×
2
3
1 indoor unit
2 notch the part for the wiring to pass through with nippers,
etc.
3 secure the wiring to the upper case using the wiring
retainer and clamp.
Connect the user interface (S1) to the adapter (S19), and the adapter
(S6) to the indoor unit (S21):
S1 and S19 connection
INFORMATION
When wiring, run the wiring away from the power supply
wiring in order to avoid receiving electric noise (external
noise).
NOTICE
Earth both ends of the BRCW901A* option cable.

7. Attach the upper case

NOTICE
Be careful not to pinch the wiring when attaching.
Align the upper case with the tabs of the lower
case (6 points) and insert the upper case (begin
with the bottom part).
NOTICE
1 The switch box and connection wiring are not
included.
2 Do not directly touch the PCB with your hand.
S19 S21
1
S6
PCB
S6 and S21 connection
2
3
4
5
Installation and operation manual
8