Mitsubishi Electric PUMY-P48NKMU1-BS Manual De Instalación página 13

6. Electrical work
Indoor unit
P FY-P· HMU, P FY-P·
Type 1 PLFY-P· EMU, PLFY-EP· EMU, PMFY-P· BMU,
PCFY-P· MU
Type 2 PEFY-P· MAU, PVFY-P· AMU
Type 3 P FY-P· BMU, PLFY-P· CMU
PFFY-P· EMU, PFFY-P· RMU, PDFY-P· MU,
Others
PEFY-P· MHU
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- MSU × 4 + PEFY- MAU × 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 (mm /AWG) V3
2
2.1/14 48
3.3/12 56
5.3/10 66
1. Use a separate power supply for the outdoor unit and indoor unit.
ple, use wiring such as YZW.
6. Install an earth longer than other cables.
Warning:
Caution:
IMPORTANT
Make sure that the current leakage breaker is one compatible with higher harmonics.
Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter.
The use of an inadequate breaker can cause the incorrect operation of inverter.
ever splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a re or communication failure.
V1 V2
MU, PEFY-P· MSU,
19.8 2.4
38.0 1.6
3.5 2.4
0.0 0.0
Sample chart
6000
600
SAMPLE
60
10
1
0.1
0.01
1 2 3 4 6 8 10 20
C
Rated Tripping current (x)
-
13