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・The wire size is the minimum value for metal conduit wiring. If the voltage drops, use a wire that is one size
thicker in diameter. Make sure the power-supply voltage does not drop more than 10%. Make sure that the
voltage imbalance between the phases is 2% or less.
・Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed
flexible cord (design 60245 IEC57). For example, use wiring such as YZW.
・This unit is intended for the connection to a power supply system with a maximum permissible system
impedance shown in the above table at the interface point (power service box) of the user's supply.
・The user must ensure that this unit is connected only to a power supply system which fulfils the requirement
above.
If necessary, the user can ask the public power supply company for the system impedance at the interface point.
・This unit complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to
Ssc*
at the interface point between the user's supply and the public system. It is the responsibility of the
1
installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary,
that the equipment is connected only to a supply with a short-circuit power Ssc greater than or equal to Ssc*
*1 Ssc
Model
Ssc (MVA)
P200
1.25
P250
1.66
P300
1.82
P350
2.14
P400
2.72
P450
3.03
P500
3.35
P550
3.99
10-3. Control cable specifications
・Transmission cable
Type
2-core shielded cable CVVS, CPEVS, or MVVS
Size
1.25 mm
(AWG 16), or ø1.2 mm or above
2
Length
Max. 200 m (656 ft)
The maximum allowable length of transmission cables via outdoor units (both centralized control transmission cables
and indoor-outdoor transmission cables) is 500 m (1640 ft)
Remarks
The maximum allowable length of transmission cables from the power supply unit to each outdoor unit or to the system
controller is 200 m (656 ft).
* Do not use a single multiple-core cable to connect indoor units that belong to different refrigerant systems. The use of a multiple-core cable
may result in signal transmission errors and malfunctions.
* Ensure shield continuity when extending the transmission cable.
*1 When extending the length of the transmission cables to 1000 m (3280 ft), consult your dealer.
・Remote controller cable
Type
2-core cable VCTF, VCTFK, CVV, VVR, VVF, or VCT
Size
0.3 to 1.25 mm
Length
Max. 200 m (656 ft)
*1 The use of cables that are smaller than 0.75 mm
*2 Max. 70 m (229 ft) for PAR-CT01MAA
*3 To wire PAR-CT01MA, PAR-4XMAA, PAR-3XMAA ("X" represents 0 or later), or Simple MA remote controller, use a cable with a diameter of
0.3 mm
(AWG 22).
2
WT09973X01
Model
Ssc (MVA)
EP200
1.25
EP250
1.58
EP300
1.73
EP350
1.93
EP400
2.59
EP450
2.90
EP500
3.13
EP550
3.97
MA remote controller
(AWG 22 to 16)
2
*1 *3
*2
(AWG 18) is recommended for easy handling.
2
45
.
*1
ME remote controller
2-core shielded cable CVVS, CPEVS, or MVVS
0.3 to 1.25 mm
(AWG 22 to 16)
2
See section 10-4 (1).
.
1
*1
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