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Electrical wiring work
Grounding work
θͱЇ͝ʒ̈͝˝͔Їϑϩɵʪʒͱ͝ʪɵцɇαЇɇ̷̈ѣʪʒ̈͝ϑϩɇ̷̷ʪθ˙ͱθцͱЇθϑɇ˙ʪϩц
Grounding the power cable
ॷ
The standard of grounding may vary according to the rated voltage and installation place of the air
conditioner.
ॷ
Ground the power cable according to the following table.
Power condition
Installation place
Voltage to ground is lower than 150V
Voltage to ground is over 150V
High humidity
Must perform the grounding work 3.
Note 1)
(Including the case where earth leakage breaker is installed)
Average humidity
Perform grounding work 3.
Note 1)
Must perform the grounding work
ߥऌ
Note 1)
(Including the case where earth
leakage breaker is installed)
Low humidity
Perform grounding work 3, if possible,
for your safety.
Note 2)
Ęͱϩʪߣ࣒ɵͱЇϩ˝θͱЇ͝ʒ̈͝˝иͱθ̧ߥ
࡛ θͱЇ͝ʒ̈͝˝иͱθ̧͔Їϑϩɵʪʒͱ͝ʪɵцɇ͝ʪуΧʪθϩ࣑ӥϩ˵αЇɇ̷̈ѣʀɇϩ̈ͱ࣒͝
࡛ A˵ʪʀ̧̈˙ϩ˵ʪ˝θͱЇ͝ʒ̈͝˝θʪϑ̈ϑϩɇ͝ʀʪ̈ϑ̷ͱиʪθϩ˵ɇ͝ߣߢߢצǮ˵ʪ̈͝͝ϑϩɇ̷̷̈͝˝ɇ͝ʪɇθϩ˵̷ʪɇ̧ɇ˝ʪɵθʪɇ̧ʪθ࣑ϩ˵ɇϩʀɇ͝
cut the electric circuit within 0.5 second in case of a short circuit), allowable grounding resistance should
ɵʪߥߢड़ߧߢߢצ
Note 2) Grounding at dry place
࡛ Ɵ˵ʪ˝θͱЇ͝ʒ̈͝˝θʪϑ̈ϑϩɇ͝ʀʪϑ˵ͱЇ̷ʒɵʪ̷ͱиʪθϩ˵ɇ͝ߣߢߢצkЭʪ̈͝͝иͱθϑϩʀɇϑʪࡥ˝θͱЇ͝ʒ̈͝˝θʪϑ̈ϑϩɇ͝ʀʪϑ˵ͱЇ̷ʒɵʪ
̷ͱиʪθϩ˵ɇ͝ߤߧߢצ
Performing the grounding work
ॷ Ƹϑʪɇθɇϩʪʒ˝θͱЇ͝ʒ̈͝˝ʀɇɵ̷ʪɵцθʪ˙ʪθθ̈͝˝ϩͱϩ˵ʪϑΧʪʀ̈ѣʀɇϩ̈ͱ͝ͱ˙ϩ˵ʪʪ̷ʪʀϩθ̈ʀʀɇɵ̷ʪ˙ͱθϩ˵ʪͱЇϩʒͱͱθЇ̈͝ϩ
࢜
When using the exclusive grounding terminal
(When the grounding terminal is already built
on the house)
࢜
When using grounding of the switch board
Exclusive grounding terminal
Distributing board
