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Connecting the Power Terminal
Connect the cables to the terminal board using the compressed ring terminal.
Connect the rated cables only.
Connect using a driver which is able to apply the rated torque to the screws.
If the terminal is loose, fire may occur caused by arc.
If the terminal is connected too firmly, the terminal may be damaged.
Tightening Torque (kgf • cm)
M4
M5
M6
Installing the Earth Wire
Earthing must be done by your installation specialist for your safety.
Use the earth wire by referring to the specification of the electric cable
for the outdoor unit.
Earthing the power cable
The standard of earthing may vary according to the rated voltage and
installation place of the air conditioner.
Earth the power cable according to the following.
Installation
place
High humidity
Power
condition
Electrical
potential of lower
than 150V
Electrical
Must perform the earthing work 3.
potential of
(In case of installing circuit breaker)
higher than 150V
Note 1) Earthing work 3
Earthing must be done by your installation specialist.
Check if the earthing resistance is lower than 100Ω.
When installing a circuit breaker that can cut the electric circuit in case of a short
circuit, the allowable earthing resistance can be 30~50Ω.
Note 2) Earthing at dry place
The earthing resistance is should be lower than 100Ω. (It should not be higher than 250Ω)
12.0~14.7
24.4~29.8
56.1~74.4
Average humidity
The dry place
Perform the
Perform the earthing
Note 1)
earthing work 3.
work 2 if possible for
your safety.
Note 1)
When using the terminal for
Low humidity
Note 2)
When using earthing of the
earthing only
Earth terminal
switchboard
Distribution Board
17
E-
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