Connection Of Wiring; Optional Parts Wiring - Fujitsu AIRSTAGE AUXB004GLEH Installation Manual

6.3.2. Transmission and Remote controller cable
Transmission cable
30 mm
Shield
cable
(no film)
40 mm
• Connect remote controller and transmission cables as shown in the figure below.
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 wire by overtightening the
screw. On the other hand, an undertightened 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.
Screw
En-7
Remote controller cable
30 mm
PROHIBITED
Connect to 1 side
WARNING
Tightening torque
0.5 to 0.6 N•m (5 to 6 kgf•cm)
CAUTION
Control box cover
(2) Connect the connection cable, with the cable tie.
Cable clamp
L, N:
Power supply cable
(3) Install control box cover.
Do not bundle the remote controller cable, or wire the remote controller cable in parallel,
with the indoor unit connection cable (to the outdoor unit) and the power supply cable. It
may cause erroneous operation.

6.5. Optional parts wiring

6.5.1. Layout of the indoor unit PCB
Do not operate any switches other than prescribed, as it can cause the unit to operate
improperly or malfunction.
Use an insulated screwdriver to set the DIP switches.
Controller PCB
DIP switch
(SET 2)
ON OFF
SW4
CN65
SW3
SW2
SW1
CN820
Name
CNA01 Apply voltage terminal
CNA03
CNA02 Dry contact terminal
CNA04
DIP switch SET 2 (SW2) Input signal type switching
CNB01 Output terminal
CN65 For one of the following.
• MODBUS® convertor (*1)
• Wireless LAN adapter (*1)
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)
Lit Lit when the power is turned on.
Fast flashing (every 0.1 sec- There is a fault with the communication board or the
ond) main board.
The indoor unit is turned off and power is supplied
Blinking (repeat 3 seconds ON
from the External power supply unit (optional) to the
and 1 second OFF)
indoor unit PCB.
Y1,Y2: Remote
controller cable
Cable tie (Medium)
(Accessories)
X1, X2:
Transmission cable
CAUTION
CAUTION
CNA04 CNA02
Power indicator lamp (green)
Application
For external input
For external output
Status contents
CNB01
CNA01
CNA03