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10 Electrical wiring
TCGB0070 rev.3 - 04/2012
133
10
10.1.3 Electrical connection of outdoor unit
Wiring connection
The correct electrical wiring connection for the indoor unit is shown below:
1
Using the appropriate cable, connect the power circuit to the appropiatre terminals as shown on the wiring label and
the illustration bellow.
Power terminals
Transmission wires
Power wires
Earth Terminal
Power supply: 1~ 230V 50Hz
Power supply: 3N~ 400V 50Hz
C A U T I O N
Be sure to use a dedicated power circuit for the indoor unit. Never use a power circuit shared by another
appliance (Outdoor unit).
2
Using the appropiate cables, connect the power source cables L1 and N (for 230V 50Hz) or L1, L2, L3 and N (for
400V 50Hz) and the ground cable to the earthing screw in the electrical box base plate.
3
Connect the transmission wires between the outdoor unit and the indoor unit to the terminals 1 and 2 on the terminal
board 2 (TB2).
4
Fix the cable with the clamp supplied in the Electrical Box to ensure strain relief.
5
When routing out cable, make sure that it does not obstruct mounting of the outdoor service cover.
Wiring method
Keep a distance between each
wiring terminal and attach insulation
tape or sleeve as shown in the
figure.
Tape or sleeve
Rear cover
Earth screw
Control cable
Earth wire
Power supply cable
Wiring method with clamp
1. Insert the wires into the cord clamp
and clamp them as shown in the fi
-
gure.
2. Perform wiring so that wires do not
touch the refrigerant pipes or edge of
the covers.
C A U T I O N
Do not use a solderless terminal when
a single wire is used. If used, it causes
abnormal heating at the caulking
portion of the terminal. If a single wire
is used, connect the wire directly as
shown in the figure.