22
P00792Q-rev.2
Table 8.1 Recommended Wiring Capacity and Size
Model
Power
Supply
Minimum Wire Thickness
[AWG (mm
2
)]
GFCI
<Ground Fault
Circuit Interrupter>
Main Switch
MCA
<Minimum
Circuit
Ampacity>
Power
Supply
Wiring Size
< Main >
Ground
Wiring
Size
Communication
Cable Size
Nominal
Current
Nominal
Sensitive
Current
Nominal
Current
Fuse
[A] [mA] [A] [A] [A]
(H,Y,C)IDM006B21S
1~,
208/230V
60Hz
18 (0.82)
18
(0.82)
18 (0.82) 15 30 15 15
0.60
(H,Y,C)IDM008B21S 0.60
(H,Y,C)IDM012B21S 0.60
(H,Y,C)IDM015B21S 0.60
(H,Y,C)IDM018B21S 0.60
(H,Y,C)IDM024B21S 1.01
(H,Y,C)IDM030B21S 1.01
(H,Y,C)IDM036B21S 1.01
(H,Y,C)IDM048B21S 1.01
NOTES:
1) Follow local codes and regulations when selecting eld wiring.
2) Select a GFCI with an activation speed of (0.1 second or less).
3) Total operating current is less than 12A.
● Check for the recommended size GFCI shown in the table 8.1.
● Between indoor and outdoor units, use dual-conductor, AWG18 (0.82mm
2
) stranded copper cable
for communication cable. Do not use any cable with more than two conductors. Twisted pair or
shielded cable can be used in environments with excessive electrical noise to reduce the possibility of
communication errors between system components. Total cable length should not exceed 3281 ft (1000m).
● Select the wiring size, GFCI (Ground Fault Circuit Interrupter) in accordance with the regulations for each
region, the "Installation and Maintenance Manual", and the dedicated electrical circuit that must be used.
● Outside of the indoor unit, installation of the power supply wiring, communication cable, and wired
controller cable should be spaced as far apart as possible.
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