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CAUTION
If the power supply lacks N phase or there is
an error in the N phase, the device will
malfunction.
Some
power
equipment
reverse-phase phase or intermittent phase
(such as a generator). For this type of power
sources, a reverse-phase protection circuit
should be installed locally in the unit, as
operating in the inverted phase may damage
the unit.
Do not share the same power supply line with
other devices.
The power cord may produce electromagnetic
interference so you should maintain a certain
distance
from
equipment
susceptible to such interference.
Separate power supply for the indoor and
outdoor units.
For systems with multiple units, make sure a
different address is set for each outdoor unit.
5.10.2 Layout
Wiring layout comprises of the power cords and
communication wiring between the indoor and outdoor
units. These include the earth wires, and the shielded
layer of the earth wires of the indoor units in the
communication wiring. See below the wiring layout of
outdoor unit.
WARNING
If you want to remove the electric control box
as a whole, you need to release the
refrigerant in the system first, weld and
disconnect the connecting pipe of the
refrigerant radiator at the right rear of the
electric control box, and remove all cables
connected between the electric control box
and the air conditioner at the same time.
may
have
that
may
be
28
Upper electric control box-front
3
1
Upper electric control box-back
4
Lower electric control box-front
5
6
Power supply cable
1
4
terminal
Communication
2
5
Reactor
wiring terminal
Inverter module board 1
3
Main PCB
6
2
Fig 5.34
Fig 5.35
Fig 5.36
Filter board
V.1
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