Unit Wiring - Fujitsu Airstage ABUA30RLAV Installation Manual

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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.
For U.S.A. and Canada
1-31/32 in.
(25 mm)
Earth
1-31/32 in.
(Ground)
(25 mm)
wire
For Others
1-25/32 in. (45 mm)
Earth (Ground)
wire
1-25/32 in. (45 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 31/32 in.
(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 13/32 in.
(10 mm)
Screw with
special washer
Cable
Ring terminal
Terminal block
En-9
2-15/16 in.
Conduit connector
(75 mm)
2-15/16 in.
(75 mm)
Screw with
special washer
Cable end (Loop)
Cable
WARNING
Ring terminal
Screw with
special washer
Ring terminal
Cable
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.
M4 screw (Power supply/L1, L2 (N), GND)
6.3.2. Transmission and Remote controller cable
Transmission cable
Remote controller cable
Y1: Red
Y2: White
Y3: Black
• Connect remote controller and transmission cables as shown in Fig. B.
• When the 2 cables are attached.
Fig. B
Good
Tighten the terminal screws to the specifi ed torques, otherwise, abnormal overheating
may be produced and possibly cause heavy damage inside the unit.
Loop
M3 screw (Transmission/X1, X2)
(Remote controller/Y1, Y2, Y3)
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 under tightened screw can cause faulty contact, which
will lead to a communication failure.
Sleeve
WARNING
Tightening torque
Shielded wire
(no fi lm)
Y1
Y2
Y3
Prohibited
Different diameter
WARNING
Tightening torque
4.4 to 5.3 lbf·in (0.5 to 0.6 N·m)
CAUTION
11 to 16 lbf·in (1.2 to 1.8 N·m)
1-3/16 in. (30 mm)
1-9/16 in. (40 mm)
1-3/16 in. (30 mm)
1-9/16 in. (40 mm)
Prohibited
Connect to 1 side