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6.3.2. Transmission and Remote controller cable
Transmission cable
1 in (25 mm)
Shield cable
1-3/8 in (35 mm)
(no film)
• Connect remote controller and transmission cables as shown in Fig. B.
• When the 2 cables are attached.
Fig. B
GOOD
Different diameter
Tighten the terminal screws to the specified torques, otherwise, abnormal overheating
may be produced and possibly cause heavy damage inside the unit.
M3 screw (Transmission/X1, X2)
(Remote controller/ Y1, Y2)
To peel the film from the lead cable, use a dedicated tool that will not damage the
conductor cable.
When installing a screw on the terminal block, do not cut the cable by overtightening the
screw. On the other hand, an under tightened screw can cause faulty contact, which will
lead to a communication failure.
6.4. Connection of wiring
(1) Remove the control
box cover and install
each connection cable.
(2) After wiring is complete,
clamp the remote con-
troller cable, connection
Control box
cable and power supply
cover
cable with cable clamp.
Earth (Ground)
Cable tie (medium)
(accessories)
Y1, Y2:
Remote controller
cable
(3) Attach the control box cover.
En-9
Remote controller cable
1 in (25 mm)
PROHIBITED
Connect to 1 side
WARNING
Tightening torque
4.4 to 5.3 lbf·in
(0.5 to 0.6 N·m)
CAUTION
Loosen the
screws
(5 locations)
Conduit (L1, L2 (N):
Power supply cable)
X1, X2:
Transmission cable
● Fix the conduit with the supporters as shown below.
Indoor unit
6.5. Optional parts wiring
6.5.1. Layout of the indoor unit PCB
DIP switch
(SET 2)
Name
Power indicator
lamp (green)
CNA01
CNA03
CNA02
CNA04
DIP switch SET 2
(SW2)
CNB01
CN8
CN48
CN65
CN820
*1: For details, refer to each installation manual.
6.5.2. Power indicator lamp status
Power indicator lamp (Green)
Lit
Fast flashing (every 0.1
second)
Blinking (repeat 3 seconds ON
and 1 second OFF)
Lock nut
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.
Conduit (power supply cable)
30 in
54 in
54 in
(756 mm)
(1,361 mm)
(1,361 mm)
or less
or less
or less
CNA01 CNA03
CNB01
CN48
CN65
CN820
Application
Indicates the state of the power supply. Refer to "Power indicator
lamp status" following.
Apply voltage terminal
For external input
Dry contact terminal
Input signal type switching
Output terminal
For external output
For Remote sensor unit (*1)
For IR receiver unit (*1)
For one of the following.
• MODBUS® convertor (*1)
• Wireless LAN adapter (*1)
For External power supply unit (*1)
Status contents
Lit when the power is turned on.
There is a fault with the communication board or the
main board.
The indoor unit is turned off and power is supplied
from the External power supply unit (optional) to the
indoor unit PCB.
IMPORTANT:
Be sure to insulate the connection between the
wires.
Locally
purchased
Solder and insulate the connected parts.
Supporter
54 in
(1,361 mm)
or less
CNA02
CNA04
CN8
Power indicator
lamp (green)
Wire kit connector
(optional parts)
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