20
Wiring Work
Specification of electronic wire
Power supply
MCCB
ELB or ELCB
Power cable
Earth cable
Communication cable
Max : 242V
Min : 198V
XA
XA, 30mmA
0.1 s
2.5mm
2
2.5mm
2
0.75~1.5mm
2
• Decide the capacity of ELCB(or MCCB+ELB) by below formula.
• Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC:60245 IEC 57 / CENELEC:H05RN-F or IEC:60245 IEC 66 / CENELEC:H07RN-F)
The capacity of ELCB(or MCCB+ELB) X [A] = 1.25 X 1.1 X ΣAi
✴
X : The capacity of ELCB(or MCCB+ELB).
✴
ΣAi : Sum of Rating currents of each indoor unit.
✴
Refer to each installation manual about the rating
current of indoor unit.
✴
Rating current
Unit
Model
Rating current
AM
✴
FNCD
✴
✴
056
✴
✴
071
✴
0.33A
0.35A
• Decide the power cable specification and maximum length within 10% power drop among indoor units.
✴
Coef: 1.55
✴
Lk: Distance among each indoor unit[m]
Ak: Power cable specification[mm2]
ik: Running current of each unit[A]
n
Σ
k=1
(
Coef×35.6×L
k
×i
k
) < 10% of input voltage[V]
1000×Ak
Summary of Contents for AM FNCD Series
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