Panasonic U1 Serie Instructions D'installation page 13

4-3. Wiring System Diagrams
L
Power supply
N
220/230/240V ~50Hz
Ground
Remote
D
controller
WHT
1 1
BLK 2 2
L
Power supply
N
220/230/240V ~50Hz
Ground
NOTE
(1) Refer to Section 4-2. "Recommended Wire Length
and Wire Diameter for Power Supply System" for the
explanation of "B", "C", "D" and "E" 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. (Fig. 4-2)
(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 remote controller unit
(Optional). Auto address setting can be executed by
remote controller automatically. Refer to the installation
instructions supplied with the remote controller unit
(optional).
Indoor unit
(No. 1)
L
N
C
B
U1
U2
Ground
R1
R2
Ground
C
Indoor unit
(No. 2)
Ground
L
N
B
U1
U2
E
R1
R2
* 3-phase model connections
Outdoor unit (3-phase)
INV unit
L1
U1
L2
U2
L3
N
* Single-phase model connections
Outdoor unit (single-phase)
INV unit
L
N
U1
U2
6P terminal board
L
N U1
Power Unit
supply control
line
U1 Type
13
L1
Power supply
L2
380/400/415V, 3 N~, 50Hz
L3
N
Ground
L
Power supply
220/230/240V ~50Hz
N
Ground
U2 R1 R2
Remote
control
line
Fig. 4-1
Fig. 4-2