Connecting Power And Communication Cable - Samsung AM CNBD Series Installation Manual

Connecting power and communication cable

Specification of electric wires
Indoor unit Power supply
208~230V/60 Hz
DVM Hydro unit Max: 253 V
Min: 187 V
DVM Hydro unit HT
208~230V/60 Hz
(AM048CNBFCB)
Max: 253 V
DVM Hydro unit HT
Min: 187 V
(AM072CNBFCB)
❋ Table for current (Single installation)
Indoor unit
DVM Hydro unit
DVM Hydro unit HT
f Decide the power cable specification and maximum length within 10 % power drop among indoor units .
• coef : 1 . 5 5
• Lk : Distance among each indoor unit [m (inch)], Ak: Power cable specification [mm
ik : Running current of each unit [A]
Example of Installation
f Total power cable length L = 100 m (328 . 1 ft), Running current of each units 1[A]
f Total 10 indoor units were installed
10[A]
MCCB+
ELCB
ELB
Or
0 m (0 ft)
28
MCCB ELB
25 A,
20 A 30 mA,
0 . 1 sec 
30 A,
30 A 30 mA,
0 . 1 sec 
50 A,
50 A 30 mA,
0 . 1 sec 
Model Rated current (A)
AM✴✴✴CNBD✴✴
AM048CNBF✴✴
AM072CNBF✴✴
n
Coef×35 . 6 ×Lk×ik
∑(
k=1
1000×Ak
9[A]
Indoor unit 1
10 m (32 . 8 ft) 20 m (65 . 6 ft)
Power cable Earth cable
10 AWG 
(Single Installation)
6 AWG 
(Single Installation)
MCA ( A)
0 . 0 5 2 . 2
14 . 3 18 . 0
23 . 1 30 . 0
) < 10 % of input voltage[V]
(inch
2
Indoor unit 2
Communication cable
10 AWG 20 AWG~14 AWG
MOP (Min. ELCB, MCCB, A)
15 . 0
25 . 0
40 . 0
)]
2
1[A]
Indoor unit 10
100 m (328 . 1 ft)