Connection Of Wiring - Fujitsu AIRSTAGE ARUM24TLAV Installation Manual

Strip 3/8 in.
(10 mm)
Screw with special
washer
Cable
Ring terminal
Terminal block
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/L1, L2 (N), GND)
6.3.2. Transmission and Remote controller cable
Transmission cable
Shielded wire
(no fi lm)
Remote controller cable
For 3-wire type
1 in.
(25 mm)
• When the 2 cables are attached:
GOOD
Different diameter
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)
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.
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Cable
WARNING
11 to 16 lbf·in
(1.2 to 1.8 N·m)
1 in. (25 mm)
1-3/8 in. (35 mm)
For 2-wire type
1 in.
(25 mm)
PROHIBITED
Connect to 1 side
WARNING
4.4 to 5.3 lbf·in
(0.5 to 0.6 N·m)
CAUTION

6.4. Connection of wiring

(1) Remove the control box cover and install each connection cable.
(2) After wiring is complete, secure the remote controller cable, connection cable, and
power cable with the cable clamps.
Power supply cable
(Field supply)
Cable tie (Medium)
(Accessories)
Conduit
Y1, Y2, Y3:
(L1, L2 (N) : Power supply cable)
Remote controller
cable
GND
Lock nut
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.
Remote controller cable
For 2-wire type
Y1:Non-poler
Connect the remote
Y2:Non-poler
controller cable
Y3:Do not connect *1
Set the DIP switch 2WIRE
(SW1) (Factory setting)
*1: If you connect the remote controller cable to the terminal
Y3, 2-wire type remote controller does not work.
Control box cover
Screw
Remote control-
ler cable, Trans-
mission cable
(Field supply)
X1, X2: Transmission cable
Cable tie (Medium)
(Accessories)
CAUTION
For 3-wire type
Y1:Red
Y2:White
Y3:Black
DIP switch
(SW1)
3WIRE
En-10