Unit Wiring; Power Supply Cable; Connection Of Wiring - Fujitsu Airstage ARXB07GALH Manual De Instalación

6.3. Unit wiring

Before attaching the cable to terminal block.

6.3.1 Power supply cable

Adjust the length of power supply cable to avoid excessive tension with referring fi gure
below.
Power supply cable
20 mm
Earth (Ground)
cable
30 mm
A. For solid core wiring
(1) To connect the electrical terminal, follow the below diagram and connect after
looping it around the end of the cable.
(2) Use the specifi ed cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(3) Use an appropriate screwdriver to tighten the terminal screws.
Do not use a screwdriver that is too small, otherwise, the screw heads may be
damaged and prevent the screws from being properly tightened.
(4) Do not tighten the terminal screws too much, otherwise, the screws may break.
(5) See the table for the terminal screw tightening torques.
(6) Please do not fi x 2 power supply cables with 1 screw.
Strip 25 mm
Screw with
special washer
Cable
Cable end (Loop)
Terminal block
When using solid core cables, do not use the ring terminal. If you use the solid core
cables with the ring terminal, the ring terminal's pressure bonding may malfunction and
cause the cables to abnormally heat up.
B. For strand wiring
(1) Use ring terminals with insulating sleeves as shown in the fi gure below to connect to
the terminal block.
(2) Securely clamp the ring terminals to the cables using an appropriate tool so that the
cables do not come loose.
(3) Use the specifi ed cables, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws.
Do not use a screwdriver that is too small, otherwise, the screw heads may be
damaged and prevent the screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
(6) See the table for the terminal screw tightening torques.
(7) Please do not fi x 2 power supply cables with 1 screw.
Strip 10 mm
Screw with
special washer
Cable
Ring terminal
Terminal block
En-11
9374342280-01_IM.indb Sec1:11 9374342280-01_IM.indb Sec1:11
Loop
Screw with
special washer
Cable end (Loop)
Cable
WARNING
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Cable
WARNING
Use ring terminals and tighten the terminal screws to the specifi ed torques, otherwise,
abnormal overheating may be produced and possibly cause heavy damage inside the unit.
Tightening torque
M4 screw
(Power supply /L , N , GND)
6.3.2 Transmission and Remote controller cable
Transmission cable
Shielded cable (no fi lm)
Remote controller cable
For 3-wire type
25 mm
• Connect remote controller and transmission cables as shown in Fig. A.
Fig. A
GOOD
Diferent diameterf
WARNING
Tighten the terminal screws to the specifi ed torques, otherwise, abnormal overheating
may be produced and possibly cause heavy damage inside the unit.
Tightening torque
M3 screw
(Transmission /X1, X2)
(Remote controller /Y1, Y2, Y3)
CAUTION
To peel the fi lm 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 undertightened screw can cause faulty contact, which
will lead to a communication failure.

6.4. Connection of wiring

(1) Remove the control box cover from the control box.
(2) Connect the connection cable.
Control box
CAUTION
When switching the DIP switch (SW1), be sure to turn off the power supply to the
indoor unit. Otherwise, the PC board of the indoor unit may be damaged.
1.2 to 1.8 N·m
(12 to 18 kgf·cm)
25 mm
35 mm
For 2-wire type
25 mm
PROHIBITED
Connect to 1 side
0.5 to 0.6 N·m
(5 to 6 kgf·cm)
Screw
Control box cover
Remove the 4 screws and
the control box cover from
the control box.
7/12/2012 10:43:23 AM 7/12/2012 10:43:23 AM