En-9
6.4. Connection of wiring
(1) Remove the control box cover and install each connection cable.
Screw
Control box cover
(2) After wiring is complete, secure the remote controller cable, connection cable, and
power cable with the cable clamps.
Power supply cable
(locally purchased)
Cable tie (medium)
(accessories)
Remote controller
cable, Transmis-
sion cable
(locally purchased)
Cable tie (medium)
(accessories)
Lock nut
GND
Conduit
(L1, L2 (N) : Power supply cable)
X1, X2: Transmission cable
Y1, Y2: Remote
controller cable
• Fix the conduit with the supporters as shown below.
Conduit (power supply cable)
Supporter
Indoor unit
30 in
(756 mm)
or less
54 in
(1,361 mm)
or less
54 in
(1,361 mm)
or less
54 in
(1,361 mm)
or less
6.5. Optional parts wiring
6.5.1. Layout of the indoor unit PCB
CN8
CN820
CN65
CN48
CNB01
CNA01 CNA03
CNA02
CNA04
CNA05
CN106
SW1
SW2
SW3
SW4
Controller PCB
Power supply PCB
OFF
ON
DIP switch
(SET 2)
Power indicator
lamp (green)
Name
Application
Power indicator
lamp (green)
Indicates the state of the power supply. Refer to “Power indicator
lamp status” following.
CNA01
Apply voltage terminal
For external input
CNA03
CNA02
Dry contact terminal
CNA04
DIP switch SET 2
(SW2)
Input signal type switching
CNB01
Output terminal
For external output
CN8
For Remote sensor unit (*1)
CN48
For IR receiver unit (*1)
CN65
For one of the following.
• MODBUS® convertor (*1)
• Wireless LAN adapter (*1)
CNA05
For Drain pump unit (*1)
CN106
CN820
For External power supply unit (*1)
*1: For details, refer to each installation manual.
6.5.2. Power indicator lamp status
Power indicator lamp (Green)
Status contents
Lit
Lit when the power is turned on.
Fast flashing (every 0.1
second)
There is a fault with the communication board or the
main board.
Blinking (repeat 3 seconds ON
and 1 second OFF)
The indoor unit is turned off and power is supplied
from the External power supply unit (optional) to the
indoor unit PCB.
6.5.3. Connection methods
Wire modification for External
input/output wire
(1) Remove insulation from wire at-
tached to wire kit connector.
(2) Remove insulation from field
supplied cable. Use crimp type
insulated butt connector to join field
cable and wire kit wire.
(3) Connect the wire with connecting
wire with solder.
IMPORTANT:
Be sure to insulate the connection between the
wires.
Locally
purchased
Solder and insulate the connected parts.
Wire kit connector
(optional parts)
9373385264-02_IM_L3.indb Sec1:9
9373385264-02_IM_L3.indb Sec1:9
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9/24/2019 11:06:29 AM
