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Outdoor
(Connect the shielded end of the shielded wire to the
unit
electronic controller box sheet metal "
Signalling line
(P Q E)
between outdoor units
(P Q E)
Indoor and
outdoor units
Communication wire
Only the last indoor unit requires adding
P
the build-out resistor at P and Q.
Q
(open)
6.3.2 Communication wiring between the indoor unit and wired
controller
The wired controller and the indoor unit can be connected in different
manners, depending on the forms of communication.
1) For a bidirectional communication mode:
Use 1 wired controller to control 1 indoor unit or 2 wired controllers
(one master and one slave controller) to control 1 indoor unit
(see Figure 6.7);
Use 1 wired controller to control multiple indoor units or 2 wired
controllers (one master and one slave controller) to control
multiple indoor units (see Figure 6.8);
Indoor unit 1
Wired controller 1
Master wired controller
Indoor unit 1
Wired controller 1
M
a
t s
r e
i w
e r
d
c
o
n
r t
l l o
r e
2) For a unidirectional communication mode:
Use 1 wired controller to control 1 indoor unit (see Figure 6.9).
" here)
Connecting the shielded
layer of the shielded wire
Figure 6.6
Wired controller 2
Slave wired controller
Figure 6.7
Indoor unit 2
Indoor unit n (n<=16)
Wired controller 2
S
a l
v
e
i w
e r
d
c
o
n
r t
l l o
r e
Figure 6.8
Indoor unit 1
The X1/X2, D1/D2 ports on the sides of the main control board
and the unidirectional communication port (display board side) are
for different types of wired controllers (see Figure 6.10).
Use the connecting wires (accessory 15) to connect the D1/D2 ports.
CN18
X1
X2
To wired controller
Indoor Main Control Board
comm. bus
Caution
•
For the specific connection method, refer to the instructions in the
corresponding wired controller manual to carry out the wiring and
connections.
6.4 Handling the Electrical Wiring Connection Points
Once the wiring and connections are done, use tie straps to
secure the wiring properly so that the connection joint cannot be
pulled apart by external force. The connection wiring must be
straight out so that the cover of the electrical box is level and can
be closed tightly.
Use professional insulation and sealing materials to seal and
protect the perforated wires. Poor sealing may lead to
condensation, and entry of small animals and insects that may
cause short circuits in parts of the electrical system, causing the
system to fail.
6.5 Panel Wiring
Refer to the panel instructions to connect the docking terminals of the
display board and the swing motor.
Use the protection casing (accessory 14) to cover and protect the
terminal, and bind it firmly with tightening band (accessory 11). See
Figure 6.11.
Figure 6.11
12
A
B
C
D
Display board
A
B
C
D
Wired controller 1
Figure 6.9
X
S6
X
P6
CN15(
WHITE )
Display Board
SW1 SW2 SW3 SW4 SW5 SW6 SW7
POWER_S
ENC1
CN9
D1 D2
To wired
controller
comm.bus
Figure 6.10
Protecting bush
Tightening band
Wired
controller
A
B
C
D
V.2
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