EN
17
Digital Inverter
7
ELECTRICAL WORK
WARNING
1. Using the specified wires, ensure that the wires are
connected, and fix wires securely so that the external
tension to the wires does not affect the connecting
part of the terminals.
Incomplete connection or fixation may cause a fire, etc.
2. Be sure to connect the earth wire (grounding work).
Incomplete grounding may lead to electric shock.
Do not connect ground wires to gas pipes, water pipes,
lightning rods or ground wires for telephone wires.
3. The appliance shall be installed in accordance with
national wiring regulations.
Capacity shortages of the power circuit or an incomplete
installation may cause an electric shock or fire.
CAUTION
•
Wrong wiring may cause a burn-out of some electrical
parts.
•
Be sure to use the cord clamps attached to the product.
•
Do not damage or scratch the conductive core or inner
insulator of the power and inter-connecting wires when
peeling them.
•
Use the power and Inter-connecting wires with specified
thicknesses, specified types and protective devices
required.
•
Remove the panel, and you can see electric parts on the
front side.
•
A metal pipe can be installed through the hole for wiring.
If the hole size does not fit the wiring pipe to be used, drill
the hole again to an appropriate size.
Furthermore, be sure to secure these wires with the pipe
valve fixing plate and cord clamps stored in the electric parts
box.
•
When the outdoor air temperature drops, power is
supplied to the compressor with the purpose of
preheating the compressor in order to protect it.
Therefore, leave the main power switch at the “on”
setting during the periods when the air conditioner is
being used.
Wiring between Indoor Unit and
Outdoor Unit
1. Figure below shows the wiring connections between the
standard indoor and outdoor units and between the
indoor units and remote controller. The wires indicated by
the broken lines or dot-and-dash lines are provided at the
installation place.
2. Refer to the wiring diagrams of the models concerned for
the internal wiring connections of the outdoor unit and
indoor units.
3. There is no need to perform the P.C. board settings for
the indoor units.
Power and Wiring Specifications
*
Number of wire
×
wire size
Electric parts box
Cord clamp
Pipe hole
Panel
Pipe valve fixing plate
• Secure the indoor/outdoor connecting wires at side C.
Side D (Space: 8.5 mm)
Side C (Space: 4 mm)
Model
(RAV-SM Type) 224AT8
280AT8
224AT7
280AT7
Power supply
380-415 V 3N~
50 Hz
380 V 3N~
60 Hz
Maximum
running current
18.0 A
22.0 A
18.0 A
22.0 A
Installation
fuse rating
25 A
25 A
25 A
25 A
Power wire*
5
×
2.5 mm
2
or more
(H07 RN-F or 60245 IEC 66)
Indoor/outdoor
connecting
wires*
4
×
1.5 mm
2
or more
(H07 RN-F or 60245 IEC 66)
1
2
A
B
3
1
2
A
B
3
1
2
3
L1
L2
L3
Ν
1
2
A
B
3
Outdoor unit
Remote
controller
Indoor unit
(main)
Leakage
breaker
Input power
380-415 V 3N~, 50Hz
380 V 3N~, 60Hz
Indoor unit
(secondary)
Indoor unit
(secondary)
