!
C A U T I O N
• Separate the power supply wiring from the terminal block for controller
and
communication cables (TB2).
• Do not connect the main power source cables to the control line
(Terminals A, B, 1 and 2 of TB2). If connected, the printed circuit
board (PCB) will be broken.
• Pay attention to followings when wires are connected to terminal board:
(A) Attach an insulation tape or a sleeve to each terminal.
(B) Maintain the distance between the electrical box and the terminals
to prevent a short circuit.
(C) Maintain the distance between the terminals.
(A)
(B)
(C)
Screw
• Check the recommended size of the ELB shown in table. Select high-
sensitive high speed ELB when the rated sensitive current is less than
30mA. (The motion time should be within 0.1 second.)
• The use of a cable other than that specified above can cause of
malfunction due to effects of noise
For UTOPIA Series
Model
ELB
Main switch
Wiring size (mm
2
)
Combination
n / A / mA
Rated
current
(A)
Fuse
capacity
(A) or CB
Power
source
cable
Transition wiring
between O.U. and I.U.
Transition
wiring
between
indoor units
*6
Earth
wiring
*7
Remote
control
switch cable
*8
Power
supply
Control
Circuit
*5
Indoor
*1
Indoor
*2
Indoor
*2
Indoor
*3
< 20m
*4
Single type
2 / 40 / 30
5
5
1.0
1.0
0.75
-
2.0
0.75
Multi type
0.75
3.5
ELB: Earth Leakage Breaker; CB: Circuit Breaker; I.U.: Indoor unit; O.U.: Outdoor unit
?
N O T E
For the total wiring length more than 20m, refer to “Installation & Operation Manual” of the outdoor unit.
Example of wiring connection
combinations for simultaneous operation
Control cable
(Field supplied)
S
hielded twisted pair cable
0.75mm
2
This cable dose not need any polarity.
Do not apply an excessively high voltage
to this cable. (Rated voltage: 5V)
Connect to both ends of shield tube to
earth.
E
E
L2L3 N
L1
N
1 2
A B
L1
3N~
400V / 50Hz
1N~
230V 50Hz
L1
N
1 2
A B
ELB + CB
E
1 2
E
L1
N
1 2
A B
E
L1
N
1 2
A B
*8
*1, *2
*3
*5
*3
*5
*5
*5
*6
*6
*6
*6
*6
*7
E
*7
*7
*7
E
ELB + CB
Remote control
switch (Option)
Outdoor unit
Indoor unit number 1
Main
switch
Power source cable
Pay attention to the
phase of power
source when wiring.
Indoor unit number 4
Indoor unit number 3
Indoor unit number 2
Main switch
Pull box
Remote control switch cable
(Field supplied)
S
hielded twisted pair cable
0.75mm
2
.
This cable dose not need any polarity.
Do not apply an excessively high voltage
to this cable. (Rated voltage: 5V)
Connect to one end of shield tube to
earth.
The details of wire, ELB and main
switch for outdoor unit shall be
referred to “Installation & Operation
Manual” of connected outdoor unit.
Pull box
Pull box
Earth
wiring
ELECTRICAL WIRING
PMML0552 rev.1 - 02/2021 - A10635790A
21
ENGLISH