En-10
Tightening torque
M3 screw
(Transmission /X1, X2)
(Remote controller /Y1, Y2, Y3)
0.5 to 0.6 N·m
(5 to 6 kgf·cm)
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.
Screw
Control box cover
(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)
Remote control-
ler cable, Trans-
mission cable
(Field supply)
Cable tie (Medium) (Accessories)
Cable clamp
L, N:Power supply cable
X1, X2:
Transmission cable
Remote controller cable
Y1:Red
Y2:White
Y3:Black
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.
Remote controller cable
DIP switch
(SW1)
For 2-wire type
For 3-wire type
Connect the remote
controller cable
Y1:Non-poler
Y2:Non-poler
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.
6.5. Air
fl
ow changing
When using the ARXB24/30/36/45L model with external Static Pressure under 40 Pa,
the Wire (FAN MOTOR) must be replaced as explained below.
Replacement method
(1) Remove the cover.
(2) Remove the Wire (TYPE A) connector from Wire (FAN MOTOR).
(3) Remove the Wire (TYPE A) connector from CN110 of the PCB.
(4) Insert the Wire (TYPE B) connector into CN110 of the PCB.
(5) Insert the Wire (TYPE B) connector into Wire (FAN MOTOR).
(6) Insert the cover.
Cover
Wire
(Fan motor)
External Static Pressure and Required Connector Type
Type
A
B
External Static
Pressure
40 to 80 Pa
0 to 40 Pa
Wire
1
2
3
4
5
6
1
2
3
4
5
1
BLACK
2
WHITE
3
PINK
4
PURPLE
5
BLUE
ARXB24
ARXB30
ARXB36
1
BLACK
2
WHITE
3
RED
4
BLUE
5
PINK
6
PURPLE
ARXB45
1
BLACK
2
WHITE
3
RED
4
PINK
5
PURPLE
6
BLUE
Remark
Factory setting
(Standard static pressure)
Accessories
(Low static pressure)
]1
9373385141-01_IM.indb Sec1:10
9373385141-01_IM.indb Sec1:10
7/12/2012 11:16:13 AM
7/12/2012 11:16:13 AM
