Wiring Work
Selecting compressed ring terminal
Silver solder
Norminal dimensions for cable (mm
2
)
1.5
2.5
4
Norminal dimensions for screw (mm)
4
4
4
4
4
B
Standard dimension (mm)
6.6
8
6.6
8.5
9.5
Allowance (mm)
±0.2
±0.2
±0.2
D
Standard dimension (mm)
3.4
4.2
5.6
Allowance (mm)
+0.3
-0.2
+0.3
-0.2
+0.3
-0.2
d1
Standard dimension (mm)
1.7
2.3
3.4
Allowance (mm)
±0.2
±0.2
±0.2
E
Min.
4.1
6
6
F
Min.
6
6
5
L
Max.
16
17.5
20
d2
Standard dimension (mm)
4.3
4.3
4.3
Allowance (mm)
+0.2
0
+0.2
0
+0.2
0
t
Min.
0.7
0.8
0.9
Specification of electric 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
f
Decide the capacity of ELCB(or MCCB+ELB) by below formula.
f
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 and ELB X[A] = 1.25 X 1.1 X ∑Ai
❋
X : The capacity of ELCB or MCCB and ELB
❋
∑Ai : Sum of rating currents of each indoor unit.
❋
Refer to each installation manual about the rating current of indoor unit.
f
Decide the power cable specification and maximum length within 10% power drop among the indoor units.
n
Coef×35.6×L
k
×i
k
10% of input voltage[V]
∑
(
) <
1000×A
k
k=1
❋
coef: 1.55
❋
L
k
: Distance among each unit [m], A
k
: Power cable specification [mm
2
]
i
k
: Running current of each unit [A]
❋
Run transmission wiring between the indoor and outdoor units through a conduit to protect against external forces, and
feed the conduit through the wall together with refrigerant piping.
English-26