19
1
Before wiring work, you must turn off all power source.
2
Indoor unit power should be supplied through the breaker
( ELCB or MCCB+ELB ) separated by the outdoor power.
ELCB: Earth Leakage Circuit Breaker
MCCB: Molded Case Circuit Breaker
ELB: Earth Leakage Breaker
3
The power cable should be used only copper wires.
4
Connect the power cable{1(L), 2(N)} among the units within maximum
length and communication cable(F1, F2) each.
5
Connect F3, F4(for communication) when installing the wired remote
control.
Wiring Work
Unit Model Rating current
AM
FNHDEH
220
3.8A
280
5.9A
Rating current
Specification of electronic wire
Power supply MCCB ELB or ELCB Power cable Earth cable
Communication
cable
Max : 242V
Min : 198V
XA
X A, 30mmA
0.1 s
2.5mm
2
2.5mm
2
0.75~1.5mm
2
Run transmission wiring between the indoor and outdoor units through a con-
duit to protect against external forces, and feed the conduit through the wall
together with refrigerant piping.
Decide the capacity of ELCB(or MCCB+ELB) by below formula.
The capacity of ELCB(or MCCB+ELB) X[A] = 1.25 X 1.1 X
∑
Ai
X
: The capacity of ELCB(or MCCB+ELB).
∑
Ai : Sum of Rating currents of each indoor unit.
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: 1.55
Lk: Distance among each indoor unit[m]
A
k: Power cable specification[mm
2
]
ik: Running current of each unit[A]
∑ (
Coef×35.6×L
k×ik
) <
10% of input
voltage[V]
1000×A
k
n
k=1
Silver solder
Selecting compressed ring terminal
Norminal
dimensions for
cable (mm
2
)
Norminal
dimensions for
screw (mm)
B D d1 E F L d2 t
Standard
dimension
(mm)
Allowance
(mm)
Standard
dimension
(mm)
Allowance
(mm)
Standard
dimension
(mm)
Allowance
(mm)
Min. Min. Max.
Standard
dimension
(mm)
Allowance
(mm)
Min.
1.5
4 6.6
±0.2 3.4
+0.3
-0.2
1.7 ±0.2 4.1 6 16 4.3
+0.2
0
0.7
4 8
2.5
4 6.6
±0.2 4.2
+0.3
-0.2
2.3 ±0.2 6 6 17.5 4.3
+0.2
0
0.8
4 8.5
4 4 9.5 ±0.2 5.6
+0.3
-0.2
3.4 ±0.2 6 5 20 4.3
+0.2
0
0.9
When installing optional product, make sure to follow below current capacity.
Optional product is not supplied by manufacturer.
NASA_Big Duct_AM@@@FNHDEH@_IM_EN_03653A-06.indd 19 2016-12-01 오후 3:06:55
To Next Page
Loading...
