Samsung AM Series Installation Manual page 14

Wiring work
Specification of electronic wire
Power supply
Max : 242V
Min : 198V
 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 polychloro-

prene 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 ∑Ai
T X : The capacity of ELCB(or MCCB+ELB).
T ∑ Ai : Sum of Rating currents of each indoor unit.
T Refer to each installation manual about the rating current of indoor unit.
Decide the power cable specification and maximum length within 10% power drop among

indoor units.
Coef×35.6×L
n
∑ (
k=1
T coef: 1.55
T Lk: Distance among each indoor unit[m], Ak: Power cable specification[mm
ik: Running current of each unit[A]
Example of Installation
- Total power cable length L = 100(m), Running current of each units 1[A]
- Total 10 indoor units were installed
10[A]
ELCB
Or MCCB+
ELB
0[m]
 Apply following equation.
Coef×35.6×L
n
∑ (
k=1
Calculation
h
Installing with 1 sort wire.

2.5[mm ]
2
-2.2[V]
220[V]
Installing with 2 different sort wire.

4.0[mm ]
2
-1.4[V]
220[V]
14
MCCB ELB or ELCB
X A, 30mmA
X A
0.1 s
×i
k k
) <
10% of input voltage[V]
1000×A
k
Indoor unit1
10[m]
×i
k k
) <
1000×A
k
2.5[mm ]
2
-2.0[V]
-(2.2+2.0+1.8+1.5+1.3+1.1+0.9+0.7+0.4+0.2)=-11.2[V]
4.0[mm ]
2
-1.2[V]
-(1.4+1.2+1.8+1.5+1.3+1.1+0.9+0.7+0.4+0.2)=-10.5[V]
Power cable
2
2.5mm
9[A]
Indoor unit2
20[m]
10% of input
voltage[V]
············ 2.5[mm
············ 2.5[mm
Earth cable Communication cable
2
2.5mm 0.75~1.5mm
]
2
1[A]
] ············
2
208.8[V](Within 198V~242V)
it's okay
] ············
2
209.5[V](Within 198V~242V)
it's okay
2
Indoor
unit10
100[m]