Wiring System Diagrams - Panasonic S-22MU2E5BN Installation Instructions Manual

4-3. Wiring System Diagrams

Power supply
220-230-240V~ 50-60Hz
Remote controller
1
2
Power supply
220-230-240V~ 50-60Hz
Remote controller
1
2
Power supply
220-230-240V~ 50-60Hz
Power supply
220-230-240V~ 50-60Hz
Remote controller
1
2
R32 refrigerant leakage
detection sensor
1
2
NOT E
(1) See Section 4-2 for the explanation of "B", "C", "D" and "E" under Section 4-3.
(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 address should be set before turning the power on.
(4) Regarding Refrigerant Circuit address setting, refer to the installation instructions supplied
with the remote controller (Optional). Auto address setting can be executed by remote
controller automatically.
(5) In the case of connecting R32 refrigerant leakage detection sensor :
• Be sure to make wirings through the ceiling or the walls so that the wires of R32
refrigerant leakage detection sensor cannot be visible from inside the room.
• A single R32 refrigerant leakage detection sensor cannot be connected to multiple indoor
units.
* Group connection "E" with a remote controller is not possible. Be sure to connect a
remote controller to each indoor unit.
Indoor unit
(No. 1)
L
N
Ground
B
D
Indoor unit
(No. 2)
L
N
Ground
B
D
Indoor unit
(No. 3)
L
N
Ground
B
E*
Indoor unit
(No. n)
L
N
Ground
B
D
D
ex.)
Outdoor unit : U-4LZ2E5, U-5LZ2E5, U-6LZ2E5
L
N
C
U1
U2
R1
R2
C
ex.)
Outdoor unit : U-4LZ2E8, U-5LZ2E8, U-6LZ2E8
L
N
U1
U2
R1
R2
C
(
L
N
U1
U2
R1
R2
C
L
N
U1
U1
Inter-unit
U2
control
wiring
R1
R2
38
L
L
N
N
Ground
U1
U2
L1
L1
L2
L2
L3
L3
N
N
Ground
U1
U2
: Functional earthing)
4P terminal board
U2 R1 R2
Remote
control
wiring
Type U2
Power supply
220-230-240V~ 50Hz
Power supply
380-400-415V 3N~ 50Hz
2P terminal board
L N
Power
supply
cable