Samsung AM071NN1DEH/TK - Step 13 Optional: Extending the Power Cable

20
Installation Procedure
English
Installation Procedure
Example of Installation
TotalpowercablelengthL=100(m),Initialpull-incurrent=10[A],Runningcurrentofeachunits=1[A],Total10indoor
units were installed
or
10 [A]
ELCB
MCCB+ELB
9 [A] 1 [A]
0[m] 10[m] 20[m] 100[m]
Indoor unit 1 Indoor unit 2
Indoor unit 10
• Apply following equation.
n
Coef×35.6×Lk×ik
∑ ( ) < 10% of input voltage[V]
k=1
1000×Ak
• Calculation
– Installing with 1 sort wire.
2.5 [mm
2
]
2.5 [mm
2
]
-2.2 [V] -2.0 [V]
220 [V]
-(2.2+2.0+1.8+1.5+1.3+1.1+0.9+0.7+0.4+0.2)=-11.2 [V]
208.8 [V] :
Applicable
Within 198V
to 242V
······· 2.5 [mm
2
] ·······
– Installing with 2 different sort wire.
4.0 [mm
2
]
4.0 [mm
2
]
-1.4 [V] -1.2 [V]
220 [V]
-(1.4+1.2+1.8+1.5+1.3+1.1+0.9+0.7+0.4+0.2)=-10.5 [V]
209.5 [V] :
Applicable
Within 198V
to 242V
······· 2.5 [mm
2
] ·······
CAUTION
• Select the power cable in accordance with relevant
local and national.
• Wire size must comply with local and national code.
• You should connect the power cable into the power
cable terminal and fasten it with a clamp.
• The unbalanced power must be maintained within 10%
of supply rating among whole indoor units.
• If the power is unbalanced greatly, it may shorten
the life of the condenser. If the unbalanced power is
exceeded over 10% of supply rating, the indoor unit is
protected, stopped and the error mode indicates
• Connect the power cable to the auxiliary circuit breaker.
An all pole disconnection from the power supply must be
incorporatedinthefixedwiring(≥3mm).
• You must keep the cable in a protection tube.
• Maximum length of power cables are decided within
10% of power drop. If it exceeds, you must consider
another power supplying method.
• The circuit breaker(MCCB, ELB) should be considered
more capacity if many indoor units are connected from
one breaker.
• Use round pressure terminal for connections to the
power terminal block.
• For wiring, use the designated power cable and
connect it firmly, then secure to prevent outside
pressure being exerted on the terminal board.
• Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
strip the head and make proper tightening impossible.
• Over-tightening the terminal screws may break them.
Step 13 Optional: Extending the power
cable
1 Prepare the following tools.
Tools Spec Shape
Crimping pliers MH-14
Connection sleeve
(mm)
20xØ6.5
(HxOD)
Insulation tape
Width 19
mm
Contraction tube
(mm)
70xØ8.0
(LxOD)
DVM TK Wind-Free 1way IM EN_DB68-07553A-00.indb 20 2017-12-01 오후 2:19:04