Fujitsu Airstage ARUH72TLAV1 - Connection of Wiring

En-9
6.3.2. Transmission and Remote controller cable
Transmission cable
Shielded cable
(no fi lm)
1 in (25 mm)
1-3/8 in (35 mm)
Remote controller cable
1 in (25 mm)
For 3-wire type
1 in (25 mm)
For 2-wire type
• Connect remote controller and transmission cables as shown in Fig. B.
• When the 2 cables are attached.
Fig. B
GOOD PROHIBITED
Different diameter Connect to 1 side
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)
4.4 to 5.3 lbf·in
(0.5 to 0.6 N·m)
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 and install each connection cable.
Loosen the screws
(5 locations)
Control box cover
(2)
After wiring is complete, clamp the remote controller cable, connection cable and
power supply cable with cable clamp.
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.
Conduit (L1, L2 (N):
Power supply cable)
DIP switch
(SW1)
X1, X2:
Transmission cable
Cable tie (Medium)
(Accessories)
Y1, Y2, Y3:
Remote controller
cable
Earth (ground)
Lock nut
For 2-wire type For 3-wire type
Connect the remote
controller cable
Y1:Non-polar
Y2:Non-polar
Y3:Do not connect *1
Y1:Red
Y2:White
Y3:Black
Set the DIP switch
(SW1)
2WIRE
(Factory setting)
3WIRE
*1: If you connect the remote controller cable to the terminal Y3,
2-wire type remote controller does not work.
CAUTION
When installing a screw on the terminal board, 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.
(3) Attach the control box cover.
● Fix the conduit with the supporters as shown below.
Conduit (Power supply cable)
Supporter
Indoor unit
30 in
(756 mm)
or less
54 in
(1,361 mm)
or less
54 in
(1,361 mm)
or less
54 in
(1,361 mm)
or less
9365748237_IM.indb Sec1:99365748237_IM.indb Sec1:9 6/16/2015 4:24:46 PM6/16/2015 4:24:46 PM