Samsung AG010KSV Series, Installation Manual

Page: 40 / 86

ELE
CTRIC
AL W
ORK
Electrical wiring work
40
English
Withdrawing the power cable
Connect the power cable protection tube into the power
supply box. Be sure that the power supply cable is not
damaged by burr on the knock-out hole.
Installing the Solution device
F1
F2
OF1
OF2
R1
R2
F1
Terminal block with inverter controller
and hydro controller
F2
OF1
-
OF2
R1
Terminal block with solution device
R2
Grounding work
The grounding must be done by a qualified installer for
safety.
Grounding the power cable
f
The standard of grounding may vary according to
the rated voltage and installation place of the air
conditioner.
f
Ground the power cable according to the following
table.
Installation
place
Power
condition
High
humidity
Average
humidity
Low
humidity
Voltage to
ground is lower
than 150 V
Must
perform
the
grounding
work 3.
Note 1)
Must
perform
the
grounding
work 3.
Note 2)
Voltage to
ground is over
150 V
Must perform the grounding work 3.
Note 1) (Including the case where earth
leakage breaker is installed)
Note 1) About grounding work 3.
f
Grounding work must be done by an expert (with
qualification).
f
Check if the grounding resistance is lower than
100 Ω. When installing an earth leakage breaker (that
can cut the electric circuit within 0.5 second in case
of a short circuit), allowable grounding resistance
should be 30 ~ 500 Ω.
Note 2)
Grounding at dry place
f Check if the grounding resistance is lower than
100 Ω. Check if the grounding resistance is lower
than 250 Ω.