ENGLISH-25
02
INST
ALLA
TION
Connecting the power terminal
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Connect the cables to the terminal board using the compressed ring terminal.
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Connect the rated cables only.
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Connect using a wrench which is able to apply the rated torque to the screws.
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If the terminal is loose, fire may occur caused by arc. If the terminal is connected too firmly, the terminal may be
damaged.
Tightening Torque (kgf.cm)
M4
12~18
M5
20~30
• For the product that uses the R-32 refrigerant, be cautious not to generate a spark by keeping the following
requirements:
- Do not remove the fuses with power on.
- Do not disconnect the power plug from the wall outlet with power on.
- It is recommended to locate the outlet in a high position. Place the cords so that they are not tangled.
CAUTION
Installing the earth wire
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Earthing must be done by your installation specialist for your safety.
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Use the earth wire by referring to the specification of the electric cable for the outdoor unit.
Earthing the power cable
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The standard of earthing may vary according to the rated voltage and installation place of the Air to Water Heat Pump.
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Earth the power cable according to the following.
Installation place
Power condition
High humidity
Average humidity
Low humidity
Electrical potential of lower than 150 V
Perform the earthing work 3.
Note 1)
Perform the earthing work 3 if
possible for your safety.
Note 1)
Electrical potential of higher than 150 V
Must perform the earthing work 3.
Note 1)
(In case of installing circuit breaker)
❋
Note 1) Earthing work 3
- Earthing must be done by your installation specialist.
- Check if the earthing resistance is lower than 100Ω. When installing a circuit breaker that can cut the electric circuit in
case of a short circuit, the allowable earthing resistance can be 30~500Ω.
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When using the terminal for earthing only
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When using earthing of the switchboard
Earth
terminal
Distribution
Board
