Power Supply Wiring - Mitsubishi Electric CITY MULTI PLFY-P NFMU-E Serie Manual De Instalación

4. Electrical work
A B
~208/230V
A
~208/230V
Fig. 4-7
Total operating current of the indoor
unit
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
Indoor unit
PLFY-NEMU, PMFY-NBMU, PEFY-NMSU,
Type 1
PCFY-NKMU, PKFY-NHMU, PKFY-NKMU, PLFY-NFMU
Type 2 PEFY-NMAU
Type 3 PEFY-NMHSU
Others Other indoor unit
Please pick up "C" from the tripping characteristic of the breaker.
<Example of "F2" calculation>
= 14.65
*3 Current sensitivity is calculated using the following formula.
G1 Current sensitivity
Wire thickness
2
1.5 mm , AWG14
2
2.5 mm , AWG13
2
, AWG11
D
C C C C C
B D
C
L1 L2 M1 M2 S 1 2
TB2 TB5 TB15
Minimum wire thickness (mm², AWG.No)
Main cable Branch
1.5, AWG14 1.5, AWG14 1.5, AWG14
2.5, AWG13 2.5, AWG13 2.5, AWG13
V1
V3
56
66

4.2. Power supply wiring

IEC57, 245 IEC 53 or 227 IEC 53.
provided by the air conditioner installation.
[Fig. 4-7]
A
Ground-fault interrupter
B
C
Indoor unit
D
Pull box
Warning:
Never splice the power cable or the indoor-outdoor connection cable,
otherwise it may result in a smoke, a fire or communication failure.
Ground-fault interrupter *1
Ground
V2
2.4
1.6
Local switch (A) Breaker for wiring
(NFB)
Capacity Fuse
16 16
25 25
32 32
Sample chart
6000
600
SAMPLE
60
10
1
1 2 3 4 6 8
C
Rated Tripping current (x)
10 20