1-30
1
1
NOTE
Wiring System Diagrams
<Type E2>
(1) Refer to “Recommended Wire Length and Wire
Diameter for Power Supply System” for the explanation
of “B”, “C” and “D” in the above diagram.
(2) The basic connection diagram of the indoor unit shows
the terminal boards, so the terminal boards in your
equipment may differ from the diagram.
(3) Refrigerant Circuit (R.C.) address should be set before
turning the power on.
(4) Regarding R.C. address setting, refer to the installation
instructions supplied with the outdoor unit. Auto address
setting can be executed by remote controller automatically.
Refer to the installation instructions supplied with the
remote controller (optional).
L2
L1
L3
N
Outdoor Unit
Indoor Unit
5P terminal board
Power
supply
Power
supply
2P terminal board
Inter-unit
control wiring
Inter-unit
control
wiring
U2
U1
R2
R1
L
N
2
1
D
B
L
N
2
1
L1
L2
L3
N
C
L1
L2
L3
N
U2
U1
Power supply
220/230/240V ~ 50 Hz
Remote
controller
WHT
BLK
Ground
Ground
Ground
Outdoor unit
INV unit
Power supply
380/400/415V, 3 N~, 50/60 Hz
Indoor unit
L
N
U1
U2
R1
R2
7P terminal board
Type E2
Remote
control
wiring
CAUTION
(1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from
all outdoor units except any one of the outdoor units.
(When shipping: In shorted condition.)
For a system without link (no wiring connection between outdoor units), do not remove the short plug.
(2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 1-1)
Outdoor unit
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Prohibited
Prohibited
Indoor unit
Fig. 1-1
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address
setting. (Fig. 1-2)
Fig. 1-2
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
Central Controller
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
: Branch point
More than 2m required
Fig. 1-3
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
NO
Branch point
(5) Use shielded wires for inter-unit control wiring (c) and
ground the shield on both sides, otherwise misoperation
from noise may occur. (Fig. 1-4)
Connect wiring as shown in Section “Wiring System
Diagrams”.
(6) Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5
or 3 *1.5 mm
2
flexible cord. Type designation 60245 IEC 57 (H05RN-F, GP85PCP etc.) or heavier cord.
Use the standard power supply cables for Europe (such as H05RN-F or H07RN-F which conform to
CENELEC (HAR) rating specifications) or use the cables based on IEC standard. (60245 IEC57, 60245
IEC66)
Fig. 1-4
Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazard may also occur. Therefore, ensure that all wiring is tightly connected.
When connecting each power wire to the terminal, follow the instructions on “How to connect wiring to the terminal” and
fasten the wire securely with the terminal screw.
Shielded wire
Ground
Ground
WARNING
Sec1.indd 30
2014/11/07 10:27:55
