Connection Of Wiring - Fujitsu AIRSTAGE ARUL7TLAV Installation Manual

Strip 3/8 in.
(10 mm)
Screw with spe-
cial washer
Cable
Ring terminal
Terminal block
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/L1, L2 (N), GND)
6.3.2 Transmission and Remote controller cable
Transmission cable
Shielded cable (no fi lm)
Remote controller cable
For 3-wire type
13/16 in. (20 mm)
• When the 2 cables are attached:
GOOD
Different diameter
WARNING
Tighten the terminal screws to the specifi ed torques, otherwise, abnormal overheating
may be produced and possibly cause heavy damage inside the unit.
Terminal number
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
11 to 16 lbf·in
(1.2 to 1.8 N·m)
1 in. (25 mm)
1-9/16 in. (40 mm)
For 2-wire type
13/16 in. (20 mm)
PROHIBITED
Connect to 1 side
Tightening torque
4.4 to 5.3 lbf·in
(0.5 to 0.6 N·m)
CAUTION

6.4. Connection of wiring

(1) Remove the cover.
(2) Connect the connection cable.
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.
Connect the remote
controller cable
DIP switch
Set the DIP switch
(SW1)
(SW1)
*1: If you connect the remote controller cable to the terminal
Y3, 2-wire type remote controller does not work.
Conduit
(Power supply
cable)
Avoid touching the ceiling with the wiring
Ceiling
Do not bind the power supply cable and other cables together.
• Fix the conduit with the supporters as shown below.
Conduit (Power supply cable)
Indoor unit
30 in. 54 in.
(756 mm) (1,361 mm)
or less or less
Cover
Screw
CAUTION
Y1, Y2, Y3:
Remote controller cable
X1, X2: Transmission cable
L1, L2 (N): Power supply cable
Lock nut
GND
For 2-wire type For 3-wire type
Y1:Non-poler Y1:Red
Y2:Non-poler Y2:White
Y3:Do not connect *1 Y3:Black
2WIRE
3WIRE
(Factory setting)
Cable tie (Medium)
(Accessories)
Avoid covering the air
inlet with the wiring.
Supporter
54 in. 54 in.
(1,361 mm) (1,361 mm)
or less or less
En-12