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Installation Manual
Power supply wire connection
1. Insert the power supply wire through the cutout on the side of the electrical control box and connect the power
supply wire to the power supply terminal block and the earth line to the earth screw. After that, fix the power supply
wire with the cord clamp.
2. Use round-type crimping terminals for power connection.
Also, apply insulating sleeves to the crimping parts. Use a driver of appropriate size to fix the terminal screws.
* Design 60245 IEC66
Screw size and tightening torque
Wire size*
4.0 mm
2
Screw size
Tightening torque
(N•m)
Power supply terminal
M6
2.5 to 3.0
Earth screw
M6
2.5 to 3.0
L
N
10 mm or more
Earth line
Power supply wire
60 mm or less
Communication wire connection
Connect the communication wires to the communication wire terminals from under the electrical control box, and fix
them with the communication cable clamps.
Screw size and tightening torque
Screw size
Tightening torque
(N•m)
Communication wire terminal
M4
1.2 to 1.4
U1
U2
U3
U4
U1
U2
U3
U4
CN02
CN10
[U1, U2] and [U3, U4] not connected
Communication
terminal board
TO INDOOR
UNIT
TO CENTRAL
CONTROLLER
U1
U2
U3
U4
CN02
CN10
U1
U2
U3
U4
Communication
terminal board
TO INDOOR
UNIT
TO CENTRAL
CONTROLLER
[U1, U2] and [U3, U4] connected
U3, U4: Central control device
U1, U2: Communication wiring between Indoor / Outdoor unit
EN-49
EN-50
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