Samsung AM JXVHGH Series Installation Manual page 85

Grounding work
Grounding must be done by a qualified installer for your safety .
Grounding the power cable
f The standard of grounding may vary according to the rated voltage and installation place of the air conditioner . X
f Ground the power cable according to the following table .
X
Power condition
Installation place
High humidity
Average humidity
Low humidity
Note 1) About grounding work 3.
• Grounding work must be done by an expert (with qualification) .
• Check if the grounding resistance is lower than 100Ω . When installing a earth leakage breaker (that can cut the
electric circuit within 0 .5 second in case of a short circuit), allowable grounding resistance should be 30~500Ω .
Note 2) Grounding at dry place
• The grounding resistance should be lower than 100Ω . Even in worst case, grounding resistance should be lower
than 250Ω .
Performing the grounding work
f Use a rated grounding cable by referring to the specification of the electric cable for the outdoor unit .
X
❇ When using the exclusive grounding terminal
❇
(When the grounding terminal is already built on
the house)
DVM S HE_IM_DB68-05461A-08_EN.indd 85
Voltage to ground is lower than 150V
Must perform the grounding work 3 .
(Including the case where earth leakage breaker is installed)
Perform grounding work 3 .
Perform grounding work 3, if possible,
for your safety .
Exclusive grounding terminal
Voltage to ground is over 150V
Must perform the grounding work
Note 1)
(Including the case where earth leakage
Note 2)
breaker is installed)
❇ When using grounding of the switch board
❇
Distributing board
Note 1)
3 . Note 1)
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2017-03-24 오후 1:38:41