User`s manual

44
KXR6 outdoor unit mechanical compartment
KXR6 new design includes greatly simplified wiring requirements utilising a ‘polarity-free’ two wire control loop connecting the indoor units.
Power wiring
Cables can be laid through the front, right, left or bottom of the outdoor unit casing.
Separate power supplies should be used for the outdoor unit (3/phase) and the indoor units (1/phase).
Only control wiring is connected from outdoor to indoor unit.
Outdoor unit power supply: 3 phase 4 wiring 380-415V
Indoor unit power supply: Single phase 220-240V
Outdoor unit
Indoor unit
Remote control unit
Distributed, separate power supply system
Grounding
wire
A
C
D
R
Earth leakage breaker
(Impulse withstanding type)
Earth leakage breaker
Circuit breaker
for cabling
Circuit breaker
for cabling
A
BB
R R R RR
CAUTION
Power cable (Main Power cable)[4 cores]
Signal wire (Super Link wire)[2 cores]
Power cable (Indoor unit power cable)
[2 cores]
Remote control cord
[2 cores]
A
B
C
D
If the earth leakage breaker is exclusively for ground fault protection, then you will need to install a circuit breaker for wiring work.
Electrical
component box
Outdoor unit power supply terminal block
electrical wiring – power supply