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ELECTRICAL WIRING
!
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.
For UTOPIA Series
Model
ELB
n / A / mA
Combination
Indoor
*1
Single type
2 / 40 / 30
Multi type
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
3N~
400V / 50Hz
ELB + CB
Main switch
Main
Outdoor unit
switch
E
L1
L2L3 N
1 2
E
Earth
wiring
Power source cable
Control cable
Pay attention to the
(Field supplied)
phase of power
hielded twisted pair cable
S
source when wiring.
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.
21
PMML0552 rev.1 - 02/2021 - A10635790A
Main switch
Rated
Fuse
Power
current
capacity
source
(A)
(A) or CB
Indoor
Indoor
Indoor
*2
*2
5
5
combinations for simultaneous operation
1N~
230V 50Hz
*1, *2
Remote control
ELB + CB
switch (Option)
Indoor unit number 1
E
E
L1
N
A B
1 2
*8
*3
*7
*3
*5
*6
Pull box
0.75mm
2
(B)
•
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
Wiring size (mm
Transition wiring
between O.U. and I.U.
Power
cable
Control
supply
Circuit
< 20m
*5
*3
*4
1.0
1.0
0.75
Indoor unit number 2
Indoor unit number 3
L1
N
E
A B
1 2
*7
*6
*5
*6
Pull box
Remote control switch cable
(Field supplied)
hielded twisted pair cable
S
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.
(C)
Screw
(A)
)
2
Transition
wiring
Earth
between
wiring
indoor units
*7
*6
-
2.0
0.75
3.5
Indoor unit number 4
L1
N
E
A B
1 2
L1
N
*7
*6
*5
*5
*6
Pull box
The details of wire, ELB and main
0.75mm
.
2
switch for outdoor unit shall be
referred to "Installation & Operation
Manual" of connected outdoor unit.
Remote
control
switch cable
*8
0.75
E
A B
1 2
*7
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