ED34-862
Installation
FXDQ-PB / FXDQ-NB
195
5
3PN09042-1A
[ PRECAUTIONS ]
•
Refer to the “REMOTE CONTROLLER INSTALLATION
MANUAL” on how to install and lay the wiring for the remote
controller.
•
See also the “Wiring Diagram plate” attached to the control
box lid when laying electrical wiring.
•
Connect the remote controller and transmission wiring their
respective terminal blocks.
CAUTION
• Do not, under any circumstances, connect the power sup-
ply wiring to the remote controller or transmission wiring
terminal block. Doing so can destroy the entire system.
[ Connecting electrical wiring, remote controller wiring,
and transmission wiring ] (Refer to Fig. 18)
• Power supply and Earth wiring
Remove the control box lid.
Next, pull the wires into the unit through the wiring through
hole and connect to the terminal block (3P).
Be sure to put the part of the sheathed vinyl into the control
box.
• Remote controller and transmission wiring
Pull the wires into the unit through the wiring through hole
and connect to the terminal block (6P).
Be sure to put the part of the sheathed vinyl into the control
box.
<
Precautions when laying power supply wiring
>
•
Wiring of different thicknesses cannot be connected to the
power supply wiring terminal block. (Slack in the power sup-
ply wiring may cause abnormal heat.)
•
Use sleeve-insulated round crimp-style terminals for connec-
tions to the power supply wiring terminal block. When none
are available, connect wires of the same diameter to both
sides, as shown in the figure.
Follow the instructions are below if the wiring may get very
hot due to slack in the power supply wiring.
•
For wiring, use the designated power supply wiring and con-
nect firmly, then secure to prevent outside pressure being
exerted on the terminal board.
•
Use the correct screwdriver for tightening the terminal
screws. If the blade of screwdriver is too small, the head of
the screw might be damaged, and the screw will not be prop-
erly tightened.
•
If the terminal screws are tightened too hard, screws might
be damaged.
•
Refer to the table below for the tightening torque of the termi-
nal screws.
[ WIRING EXAMPLE
]
No. 1 system When using 1 remote controller for
1 indoor unit
O F F
W I R I N G
F O R C E D
R E M O T E
C O N T R L
T R A N S M I S S I O N
Indoor PCboard (ASSY)
Terminal block (3P)
Terminal block (6P)
Wiring through hole
Wiring through hole
Power supply wiring
Earth wire
Remote controller wiring
Transmission wiring
P 1 P 2 F 1 F 2 T 1 T 2
L
N
OFF
WIRING
FORCED
REMOTE
CONTRL
TRANSMISSION
P
1
P
2
F
1
F
2
T
1
T
2
Fig. 18
Terminal block
Tightening torque (N·m)
Remote controller / transmission wiring
terminal block (6P)
0.79 – 0.97
Power supply wiring terminal block (3P)
1.18 – 1.44
Electric wire
Round crimp-style terminal
Insulation sleeve
Connect wires of
the same gauge to
both sides.
Do not connect
wires of the same
gauge to one side.
Do not connect
wires of different
gauges.
Indoor unit A
Indoor unit B
Most
downstream
Indoor unit
Power supply
single phase
50Hz 220-240V
Power supply
single phase
50Hz 220-240V
Power supply
single phase
50Hz 220-240V
Outdoor unit
F
T
1
L
1
1
1
P
P
2
P
N
1
2
P
T
F
2
F
P
F
1
2
2
2
P
1
N
2
P
2
F
IN/D
1
OUT/D
1
P
F
2
F
1
P
L
F
1
2
T
2
T
1
P
P
2
1
F
2
N
F
L
1
2
T T
P
Remote controller
Remote controller
Remote controller
Fig. 19
L N
L N
L N
(option)
(option)
(option)
English
11
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