Mitsubishi Electric City Multy PCFY-NKMU, Руководство по установке

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8
GB
4. Electrical work
Indoor unit V1 V2
Type 1
PLFY-NEMU, PMFY-NBMU, PEFY-NMSU,
PCFY-NKMU, PKFY-NHMU, PKFY-NKMU, PLFY-NFMU
19.8 2.4
Type 2 PEFY-NMAU 38 1.6
Type 3 PEFY-NMHSU 13.8 4.8
Others Other indoor unit 0 0
C : Multiple of tripping current at tripping time 0.01 s
Please pick up “C” from the tripping characteristic of the breaker.
<Example of “F2” calculation>
• Condition PEFY-NMSU × 4 + PEFY-NMAU × 1, C = 8 (refer to right sample chart)
F2 = 19.8 × 4/8 + 38 × 1/8
= 14.65
→ 16 A breaker (Tripping current = 8 × 16 A at 0.01 s)
*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 0.1 sec or less
100 or less 100 mA 0.1 sec or less
Wire thickness V3
1.5 mm
2
, AWG14 48
2.5 mm
2
, AWG13 56
4.0 mm 2 , AWG11 66
4.2. Power supply wiring
• Wiring size must comply with the applicable local and national codes.
• Power supply cable of appliance shall not be lighter than design 245 IEC 53 or 227
IEC57, 245 IEC 53 or 227 IEC 53.
• Install an earth line longer than other cables.
• A switch with at least 3 mm, 1/8 inch contact separation in each pole shall be
provided by the air conditioner installation.
[Fig. 4-7]
A
Ground-fault interrupter
B
Local switch/Wiring breaker
C
Indoor unit
D
Pull box
Warning:
Fig. 4-7
C C C C C
A B
D
~208/230V
D
C
TB2 TB5 TB15
S 1 2 M1 M2 L1 L2
A B
~208/230V
Total operating current of the indoor
unit
Minimum wire thickness (mm², AWG.No)
Ground-fault interrupter *1
Local switch (A) Breaker for wiring
(NFB)
Main cable Branch Ground Capacity Fuse
F0 = 16 A or less *2 1.5, AWG14 1.5, AWG14 1.5, AWG14 20 A current sensitivity *3 16 16 20
F0 = 25 A or less *2 2.5, AWG13 2.5, AWG13 2.5, AWG13 30 A current sensitivity *3 25 25 30
F0 = 32 A or less *2 4.0, AWG11 4.0, AWG11 4.0, AWG11 40 A current sensitivity *3 32 32 40
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}
6000
600
60
10
1
1 2 3 4 6 8
C
10 20
SAMPLE
Sample chart
Tripping
Time
[s]
0.1
0.01
Rated Tripping current (x)
Never splice the power cable or the indoor-outdoor connection cable,
otherwise it may result in a smoke, a fire or communication failure.
BH79A348H01_en.indd 8 9/25/2017 10:55:07 AM