7. Wiring
28
. Installation
Λ
Λ
■
Caution
●
All wiring and parts must be rated for load and duty.
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For details of wiring, refer to the circuit diagram attached onto the outdoor unit.
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The electrical work shall be performed by a qualified electrician.
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The circuit diagram for wiring shows only the concept and so the details for actual work is not described.
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This unit uses 3 phase 4 wire system and so the main circuit breaker to shut off the power shall be installed
in the correct manner.
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Be sure to install the circuit breaker and fuse on power cable of each unit.
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Connect the wires to the terminals without excessive force and ensure the panel cores is installed so
that it may not be loosened. If it is loosened, it may cause overheating, electrical shock and fire.
MCCB
3
MCCB
1
ELB
ELB
MCCB
MCCB
When using ELB for 3 phase and 1 phase
When using ELB for 3 phase 4 wires
outdoor unit
indoor unit
power cable
communication cable
communication cable
Ground
outdoor unit
7-1. Overall system configuration (example)
❋
If an outdoor unit is installed in a place in danger of an electric leak or submergence,
you must install the ELB.
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