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Electrical wiring
9 ELECTRICAL WIRING
9.1 GENERAL CHECK
1 Ensure that the field-supplied electrical components (mains
power switches, circuit breakers, wires, connectors and wire
terminals) have been properly selected according to the elec-
trical data indicated. Make sure that they comply with national
and regional electrical codes.
2 Check to ensure that the power supply voltage is within +/-
10% of the rated voltage.
3 Check to ensure that the power supply has an impedance low
enough to guarantee that the starting voltage is at least 85%
of the rated voltage.
4 Check to ensure that the ground wire is connected.
5 Connect a fuse of specified capacity.
D A N G E R
Check to ensure that screws for terminal block are tightly
fastened.
C A U T I O N
•
Protect the wires, drain pipe and electrical parts from rats or
other small animals. If not protected, rats may damage un-
protected parts, and in the worst case scenario a fire could
break out.
•
Wrap the accessory packing around the wires, and plug the
wiring connection hole with the sealing material to protect the
product from any condensed water and insects.
9.2 ELECTRICAL WIRING BETWEEN DX-INTERFACE AND INDOOR AND OUTDOOR UNIT
•
Connect the electrical wires between the indoor unit and the
outdoor unit, as shown in the next diagram.
•
Follow the local codes and regulations when performing the
electrical wiring.
•
Use shielded wires for intermediate wiring to protect the units
from noise obstacle at length of less than 300m and size in
compliance with local codes.
•
In the event that a conduit tube for field-wiring is not used, fix
rubber bushes to the panel with adhesive.
•
All the field wiring and equipment must comply with local and
international codes.
•
When a cable gland is not used, it must be sealed properly in
order to ensure the correct control box sealing.
11
PMML0243A rev.3 - 12/2014
•
Tightly secure the wires with the cord clamp inside the indoor
unit.
•
Lead the wires through the knockout hole in the side cover
when using conduit.
•
Electrical wiring must comply with national and local codes.
•
Check that the ground wire is securely connected.
D A N G E R
•
Do not connect or adjust any wiring or connections un-
less the main power switch is OFF.
•
Check that the earth wire is securely connected, tagged
and locked in accordance with national and local codes.
N O T E
Please refer to Outdoor and connected device installation ma-
nual.
C A U T I O N
All the field wiring and electrical components must comply with
local codes.
C A U T I O N
Pay attention to the connection of the operating line. Incorrect
connection may cause PCB failure.
N O T E
Packing gland diameter specification: 6.0 mm (min) to 12.0 mm
(max). If needed, install additional tube insulation or wind with
insulation tape around the wire to make the wire thicker.
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