Samsung CNH 4DB Series Technical Data Book page 112

Installation
CAUTION
• You should connect the power cable into the power
cable terminal and fasten it with a clamp.
• The unbalanced power must be maintained within 2%
of supply rating.
• If the power is unbalanced greatly, it may shorten
the life of the condenser. If the unbalanced power is
exceeded over 4% of supply rating, the indoor unit is
protected, stopped and the error mode indicates.
• To protect the product from water and possible shock,
you should keep the power cable and the connection
cord of the indoor and outdoor units within ducts. (with
appropriate IP rating and material selection for your
application)
• Ensure that main supply connection is made through a
switch that disconnects all poles, with contact gap of a
least 0.12 inch(3mm).
• Devices disconnected from the power supply should
be completely disconnected in the condition of
overvoltage category.
• Keep distances of 1.97 inch(50mm) or more between
power cable and communication cable.
Main power terminal block specifications
•
AC power:
M4 screw
1(L) 2(N)
0.64(16.3)
(1-phase)
[Unit : inch(mm)]
Communication:
M4 screw
L N F1 F2
0.40(10.1)
0.47(12)
0.45(11.4)
• (1-phase)
AC power :
M4 screw
1(L) 2(N) L N
0.59(15) 0.47(12)
Main power cable specifications
The power cable is not supplied with air conditioner.
• Select the power supply cable in accordance with
relevant local and national regulations.
• Wire size must comply with the applicable local and
national code.
• Specifications for local wiring power cord and branch
wiring are in compliance with local cord.
[Unit : inch(mm)]
Communication :
M4 screw
F1 F2
0.40(10.1)
0.45(11.4)