39
English
Installation manual
Specifications of the terminal blocks
AC power: M4 screw
Communication: M3.5 screw
Unit: mm
11
7. 5
9.0
13
18
13.8
Power supply
(single phase)
MCCB ELB
Min : 198V
Max : 242V
XA
XA, 30 mA
0.1 s
Power cable Earth cable
Communication
cable
2.5 mm² or more 2.5 mm² 0.75 to 1.5 mm²
Decide the power cable specification and maximum length
by formula 2.
1 Decide the capacity of ELB and MCCB by below formula.
The capacity of ELB, MCCB X[A] = 1.25 X 1.1 X ΣAi
NOTE
• X : The capacity of ELB, MCCB
•
2 Decide the power cable specification and maximum
length within 10% voltage drop among indoor units.
n
Coef×35.6×Lk
× ik) < 10% of input voltage[V]
∑ (
1000×Ak
k=1
NOTE
• Coef: 1.55
• Lk: Distance among each indoor unit[m], Ak: Power
cable specification[mm2]
• ik: Running current of each unit[A]
To Next Page
Loading...
