Type U2 - Panasonic Inverter R32 Series Technical Data & Service Manual

Wiring System Diagrams
L
Power supply
N
230-240V ~ 50Hz
Ground
Remote
controller
WHT
1 1
BLK
2 2
L
Power supply
N
230-240V ~ 50Hz
Ground
Remote
controller
WHT
1 1
BLK
2 2
NOTE
(1) Refer to section "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 remote controller (optional).
Auto address setting can be executed by the remote
controller automatically. Refer to the installation instructions
supplied with the remote controller unit (optional).
R2 U1 L
R1 U2
Remote unit Power
controller control supply
line wiring
Type E1
(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.)
CAUTION
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. 1-10-2)
Outdoor unit
Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting. (Fig. 1-10-3)
Indoor unit
L
N
B
U1
U2
D
R1
R2
Indoor unit
L
N
B
U1
U2
D
R1
R2
( : Functional earthing)
N
L N
Power Inter-unit
supply
Type T2, F1
Outdoor unit
Indoor unit
Outdoor unit
NO
* 3-phase model connections
Outdoor unit (3-phase)
INV unit
C
L1
U1
L2
U2
L3
N
* Single-phase model connections
Outdoor unit (single-phase)
INV unit
C
L
N
U1
U2
L
Power
supply
U1 U2 R1 R2
Remote
control controller
wirin g wiring
Outdoor unit
Prohibited
Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
Branch point
1-10-15
L1
Power supply
L2
400-415V, 3 N~, 50Hz
L3
N
Ground
L Power supply
230-240V ~ 50Hz
N
Ground
7P terminal board
N U1 U2 R1 R2
Inter-unit Remote
control control
wiring wiring
Type K2
2P terminal board
4P terminal board
L
U1 U 2 R1 R 2
Power
supply
Inter-unit Remote
control control
wiring wiring

Type U2

Prohibited
Indoor unit
1
Fig. 1-10-1
N
Fig. 1-10-2
Fig. 1-10-3