Wiring; Overall System Configuration - Samsung Electronics DVM Series Technical Manual

. Installation

7. Wiring

Caution
All wiring and parts must be rated for load and duty.
For details of wiring, refer to the circuit diagram attached onto the outdoor unit.
The electrical work shall be performed by a qualified electrician.
The circuit diagram for wiring shows only the concept and so the details for actual work is not described.
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.
Be sure to install the circuit breaker and fuse on power cable of each unit.
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.
7-1. Overall system configuration (example)
When using ELB for 3 phase and 1 phase
MCCB
1
ELB
MCCB
3
ELB
Ground
When using ELB for 3 phase 4 wires
MCCB
ELB
3
If an outdoor unit is installed in a place in danger of an electric leak or submergence,
you must install the ELB.
outdoor unit
communication cable
MCCB
MCCB
outdoor unit
MCCB
3
28
power cable
communication cable
indoor unit