Types Of Control Cables; Wiring Transmission Cables - Mitsubishi Electric CITY MULTI PLFY-P15VCM-E3 Manuel D'installation

4. Electrical work
Total operating current of the indoor
unit
F0 = 16A or less *2
F0 = 25A or less *2
F0 = 32A or less *2
Apply to IEC61000-3-3 about max. permissive system impedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2 Please take the larger of F1 or F2 as the value for F0.
F1 = Total operating maximum current of the indoor units × 1.2
F2 = {V1 × (Quantity of Type1)/C} + {V1 × (Quantity of Type2)/C} + {V1 × (Quantity of Type3)/C} + {V1 × (Quantity of Others)/C}
Indoor unit
Type 1 PLFY-VBM, PMFY-VBM, PEFY-VMS,
PCFY-VKM, PKFY-VHM, PKFY-VKM, PLFY-VCM
Type 2 PEFY-VMA
Type 3 PEFY-VMHS
Others Other indoor unit
C : Multiple of tripping current at tripping time 0.01s
Please pick up "C" from the tripping characteristic of the breaker.
<Example of "F2" calculation>
*Condition PEFY-VMS × 4 + PEFY-VMA × 1, C = 8 (refer to right sample chart)
F2 = 18.6 × 4/8 + 38 × 1/8
= 14.05
→ 16A breaker (Tripping current = 8 × 16A at 0.01s)
*3 Current sensitivity is calculated using the following formula.
G1 = V2 × (Quantity of Type1) + V2 × (Quantity of Type2) + V2 × (Quantity of Type3) + V2 × (Quantity of Others)
+ V3 × (Wire length[km])
G1 Current sensitivity
30 or less 30 mA 0.1sec or less
100 or less 100 mA 0.1sec or less
Wire thickness
1.5 mm 2
2
2.5 mm
4.0 mm 2
Minimum wire thickness (mm²)
Main cable Branch
1.5 1.5
2.5 2.5
4.0 4.0
V1
18.6
38
13.8
0
V3
48
56
66
Ground-fault interrupter *1
Ground
1.5 20 A current sensitivity *3
2.5 30 A current sensitivity *3
4.0 40 A current sensitivity *3
V2
2.4
1.6
4.8
0

4.3. Types of control cables

1. Wiring transmission cables

Types of transmission cable
Cable diameter
Length
2. M-NET Remote control cables
Types of remote control cable
Cable diameter
Length
3. MA Remote control cables
Types of remote control cable
Cable diameter
Length
Local switch (A) Breaker for wiring
(NFB)
Capacity Fuse
16 16
25 25
32 32
Sample chart
6000
600
SAMPLE
60
10
1
0.1
0.01
1 2 3 4 6 8
C
Rated Tripping current (x)
Shielding wire CVVS or CPEVS
2
More than 1.25 mm
Less than 200 m
Shielding wire MVVS
2
More than 0.5 to 1.25 mm
Add any portion in excess of 10 m to within
the longest allowable transmission cable
length 200 m.
2-core cable (unshielded)
2
0.3 to 1.25 mm
Less than 200 m
20
30
40
10 20
7