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116
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(7)
Electrical wiring
●
This air conditioning system should be notificated to supply authority before connection to power supply system.
(a)
Selection of size of power supply and interconnecting wires.
●
Select wire sizes and circuit protection from Table 1.
Table 1
O
IMPORTANT
¡
Electric wiring work should be conducted only by authorized personnel.
¡
Use copper conductor only.
¡
Power source wires and Interconnecting wires shall not be lighter than polychloroprene
sheathed flexible cord (design HO5RN-F IEC 57).
¡
Do not connect more than three wires to the terminal block.
¡
Use round type crimped terminal lugs with insulated grip on the end of the wires.
Item
Model
FDCA301HEN
FDCA301HES
FDCA401HEN
FDCA401HES
FDCA501HES
FDCA601HES
FDCA801HES
FDCA1001HES
Phase
1
3
1
3
20A, 30mA, 0.1 sec or less
15A, 30mA, 0.1 sec or less
40A, 30mA, 0.1 sec or less
15A, 30mA, 0.1 sec or less
20A, 30mA, 0.1 sec or less
40A, 6mA, 0.4 sec or less
20
15
40
15
20
40
Circuit breaker
Switch breaker
(A)
30
30
60
40
Over-current protector
rated capacity (A)
Power source
wires
(minimum)
Earth leakage
breaker
Interconnecting
and grounding
wires (minimum)
3.5mm
2
2.0mm
2
5.5mm
2
ø 1.6
3.5mm
2
5.5mm
2
Interconnecting wire: ø1.6
Grounding wire: 3.5mm
2
(b)
Wiring connection.
1) Connect the same terminal number between the Indoor unit and Outdoor unit as shown in the following diagram.
2) Secure the wiring with wiring clamp so that no external force is transmitted to the connecting portion of terminal.
3) There is a ground (Earth) terminal in the control box.
●
3 phase model
●
1 phase model
4) Between master and slave indoor units, connect between the same numbers
1
,
,
3
and
X
,
Y
,
Z
on the respective
terminal blocks.
5) Set the same address for the master and slave indoor units as the communications address for the remote controller using
rotary switch SW2 on the indoor units’ control PCB.
6) Set Slave a, Slave b and Slave c using DIP switch SW5-1 and SW5-2 on the control PCB of the respective indoor slave units.
7) Be sure to press the AIR CON No. button on the remote controller after turning on the power, then check if the indoor
master and slave unit No. is displayed in the remote controller.
The indoor unit address is displayed when the AIR CON No. button is pressed. After that, pressing the
or
key
displays the unit No. beginning from the lowest No.
L1
1 2/N 3
L2 L3 N
1
X Y Z
2/N 3
X Y Z
1
X Y Z
2/N 3
1
X Y Z
2/N 3
1
X Y Z
2/N 3
Outdoor unit
Circuit breaker
Earth leakage breaker
Indoor unit
Remote
controller
Master
Slave a
Slave b
Slave c
For twin
units
For triple
units
For double
twin units
L1
1 2/N 3
N
Outdoor unit
Circuit breaker
Earth leakage breaker
1
X Y Z
2/N 3
X Y Z
1
X Y Z
2/N 3
Indoor unit
Remote
controller
Master
Slave a
For twin
units