Panasonic U-8ME1E8 Mode D'emploi page 16

SUPPLEMENT
4-3. Wiring System Diagram
Indoor unit
(No. 1)
L
Power supply
L
N
220 – 240V ~50/60Hz
N
C
Ground
B
U1
Remote
U2
controller D
Ground
WHT
1 1 R1
BLK 2 2 R2
Ground
C
Indoor unit
Ground
(No. 2)
F
L
Power supply
L Ground
N
220 – 240V ~50/60Hz
N
Ground
B
U1
Remote
U2 Ground
controller D
WHT
1 1 R1
R2
BLK 2 2
Ground
C
Indoor unit
Group control:
(No. 3)
L
Power supply
L
N
220 – 240V ~50/60Hz
N
Ground
B
Ground
E
U1
U2
R1
R2
Ground
C
Indoor unit
(No. n)
L
Power supply
L
N
220 – 240V ~50/60Hz
N
Ground
Ground
B
U1
Remote
U2
controller D
WHT
1 1 R1
BLK
2 2 R2
N OTE
(1) Refer to Section 4-2. "Recommended Wire Length and Wire
Diameter for Power Supply System" for the explanation of
"A," "B," "C," "D," and "E," in the above diagram.
(2) The basic connection diagram of the indoor unit shows the
7P terminal board, 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 the R.C. address setting, refer to page 42.
Address setting can be executed by remote controller
automatically. Refer to page 44.
Outdoor unit
INV unit
A
L1
Power supply
L1
L2
1
380 – 415V, 3 N~, 50Hz
L2
L3
2
L3
N
N
3
4
Ground
Inter-outdoor-unit control wiring
Outdoor unit
INV unit
A
L1
Power supply
L1
L2
380 – 415V, 3 N~, 50Hz
L2
L3
3
L3
N
4 N
Ground
5P terminal board
L1 L2 L3 N
Power supply
4P terminal board
1 2 3 4
Inter-unit Inter-outdoor unit
control wiring
control wiring
ME1 Type
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CAUTION
(1) When linking outdoor units in a network, disconnect the terminal extended from the short plug (CN072, 2P Black, location:
right bottom on the outdoor main control PCB) from all outdoor units except any one of the outdoor units. (When shipping:
In shorted condition.)
For a system without link (no connection wiring 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. 4-1)
Outdoor unit Outdoor unit
Indoor unit Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting.
Outdoor unit Indoor unit
NO
Indoor unit
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
(Branches less than 1 m are not included in the total branch number.) (Fig. 4-3)
Outdoor unit
Indoor unit
more than 1 m
Branch
point
Indoor unit
16 or fewer
more than 1 m
Indoor unit
less than 1 m
Indoor unit
Outdoor unit
Prohibited
Prohibited
Indoor unit Indoor unit Indoor unit
Fig. 4-1
Indoor unit
Indoor unit
Branch point
Fig. 4-2
Outdoor unit Outdoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit
Indoor unit Indoor unit
Fig. 4-3
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