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Installation Procedure
CAUTION
∙ Use rated cables or products only, with heat
resistance over 105°C, as well as properly rated
switches or fuses in the cabinet panel.
∙ Make sure that the cables connected do not produce
sparks around the auxiliary power switch or that
they are not installed in a place subject to high
temperature. High ambient temperature decreases
allowable current.
∙ Install the auxiliary power switch in a dry place,
install the panel board or electrical component box,
and then install the circuit breaker in the panel board.
∙ When connecting the main power cable, press the
cable to the terminal for a secure connection.
∙ Select a ring terminal for use.
Thickness of the
wire (mm
)
2
2.5
Less than 9.5
4
Less than 9.5
6
Less than 9.5
10
Less than 15
Connecting the cable to the power terminal
Connect the cables to the terminal board with the ring
terminals.
NOTE
∙ Be sure to use the certified and rated cables and
firmly connect them without applying any external
force to the ring terminal.
∙ Connect with a driver and wrench that can apply the
rated torque to the screws.
∙ Connect the terminal screws in compliance with the
rated tightening torques.
∙ If the terminal is loose, a fire may occur, caused by
arcing electricity. If the terminal is connected too
firmly, the terminal may be damaged.
38
English
d2
Silver solder
F
E
L
B (mm)
d2 (mm)
More than 4.5
More than 4.5
More than 4.5
More than 8.4
Screw
M3
M3.5
M4
M5
M6
R
S
T
Solderless ring
terminal
When connecting two cables to a ring terminal, separate the ring
terminal up or down to prevent it from getting loose. Place the thin
cable upward and the thick cable downward. Fix the power cables
with a cable tie.
Connecting the cables
∙ This product uses a single phase power, with 220 to
240V supply.
∙ When connecting the outdoor-to-indoor power cables,
be sure to match the numbers (or letters) between the
outdoor and indoor units. Connect the communication
cable to the connector included in the electrical
component box for each unit. When the outdoor-
to-indoor power cables are connected incorrectly, a
malfunction of the product may occur.
∙ When connecting the communication and outdoor-to-
indoor power cables, make sure these cables do not
touch the service valve on the refrigerant pipe on the
gas side or the pipes without proper insulation. Fix the
outdoor-to-indoor power cables to the insulated pipes.
∙ Be sure to comply with the wiring standards, as there
may be a risk of fire.
∙ Make sure to install the circuit breaker firmly inside
the electrical component box.
Tightening torque for
terminal (kgf∙cm)
5 to 7.5
8 to 12
12 to 18
20 to 30
25 to 37.5
N
Cable tie
Thin cable
Thick cable
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