21
Wiring Work
Power and communication cable connection
1. Before wiring work, you must turn o all power source.
2. Indoor unit power should be supplied through the breaker
( ELCB or MCCB+ELB ) separated by the outdoor power.
ELCB: Earth Leakage Circuit Breaker
MCCB: Molded Case Circuit Breaker
ELB: Earth Leakage Breaker
3. The power cable should be used only copper wires.
4. Connect the power cable{1(L), 2(N)} among the units within maximum length and communication cable(F1, F2)
each.
5. Connect F3, F4(for communication) when installing the wired remote control.
Indoor Unit 1
Outdoor Unit
Indoor Unit 2 Indoor Unit 3
Wired Remote Control
220-240V~
or
❈ ELCB : Essential Installation
Connecting power for optional product
• When installing optional product, make sure to follow below current capacity.
❈ Optional product is not supplied by manufacturer.
T/B
1(L) 2(N) Vc Vc Vw Vw
OPTION
VENTILATOR
AC, Below 2A
AC, Below 2A
HOT COIL
POWER: L
POWER: N
NASA_Big Duct_AM@@@FNHDEH@_IM_03864A-05_EN.indd 21 2016-04-01 오후 5:29:44