Electrical wiring work
10. Installation
CAUTION
•
Caution for electrical work
– You must install ELCB or MCCB + ELB
– ELCB: Earth leakage breaker
– MCCB: Molded case circuit breaker
– ELB: Earth leakage breaker
–
o not o erate the outdoor unit before com leting the refrigerant i e work
–
o not disconnect or change the cable inside the roduct t ma cause damage to the roduct
–
ecification of the ower cable is selected based on following installation condition cul ert
installation
ambient tem erature
C single multi conductor cables f the condition is different
from the ones stated
lease consult an electrical installation e ert and re select the ower cable
–
f the length of ower cable e ceed m re select the ower cable considering the oltage dro
–
se a ower cable made out of incombustible material for the insulator inner co er and the sheath
outer
co er
–
o not use the ower cable with the core wire e osed due to insulator damage occurred during
remo al of
the sheath hen the core wire is e osed it ma cause fire
Insulator (inner cover)
Exposed wire core
<The example of exposed core wire>
Sheath (outer cover)
Power and communication cable configuration
•
Main power and the ground cable must be withdrawn through the knock-out hole on the bottom-right or right
side of the cabinet.
•
Withdraw the communication cable from the designated knock-out hole on the bottom-right side of the front
part.
•
Install the power and communication cable using separate cable protection tube.
•
Fix a protection tube to the knock-out hole on the outdoor unit by using a CD connector or bushing. Make sure
to use insulating bushing.
Protection
tube
Main unit
Sub unit
Sub unit
Power cable
Power cable
Power cable
Communication
cable between
outdoor units
Communication
cable between
outdoor units
ELCB
MCCB+
ELB
or
ELCB
MCCB+
ELB
or
ELCB
MCCB+
ELB
or
Ground cable
Ground cable
Ground cable
Communication
cable
Power • ground
cable
