Panasonic U-26PE1U6 Technical Data & Service Manual page 106

Wiring System Diagrams
Basic wiring diagram for standard control
*1
Power supply
208 / 230 V, 60Hz, 1PH
Remote Controller
WHT
BLK
1 1
2 2
NOTE
* 1 When the power source is not supplied from the outdoor unit via the
1
inter-unit power line, provide external power source in the indoor unit.
* 2 Disconnect Switch may be needed by the National/Local code.
ALWAYS COMPLY WITH NATIONAL AND LOCAL
CODE REQUIREMENTS.
NOTE
(1) Refer to Section "Recommended Wire Length and
Wire Diameter for Power Supply System" for the
explanation of "A", "B" and "C" in the above diagram.
(2) The basic connection diagram of the indoor unit shows
the 6P 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 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).
(5) Ensure that the ground shield cable for inter-unit control
wiring between outdoor and indoor units should be
connected to the outdoor unit.
(6) For the inter-unit control wiring between the indoor units,
be sure to connect between the shield.
Then connect it to the shield of inter-unit control wiring
between outdoor and indoor units.
(7) Ensure that the ground shield cable for a remote
controller should be connected only to the indoor unit.
Inter-unit power line
Indoor
208 / 230 V, 60 Hz, 1PH
unit
*2
*2
L1
L1
L2
L2
Grounding Wire
Ground
U1
U2
Ground
B
R1
R2
C
Maximum connectable indoor units: 8
Outdoor unit
INV unit
L1
L2
Grounding Wire
1
2
G
A
U1
U2
Ground
*2 Disconnect switch (Field Supply)
U1
Inter-unit
control wiring
Type F2
Type T2
L1
Power
supply
Type U1, T1, F1
5P terminal board
L1 L2 U1 U2
Remote
Power Inter-unit
control
supply control
wiring
wiring
Type U2
U1U2 R1R2
L1 L2
L1 L2 U1 U2 R1 R2
Power Inter-unit Remote
supply control control
wiring wiring
1-98
1. Specifications
L1
Power supply
L2
208 / 230 V, 60Hz, 1PH
Outdoor Unit
8P terminal board
U2 1 2 G L1 L2
Inter-unit Power wiring
power wiring
Indoor Unit
6P terminal board
L2 U1 U2 R1 R2
Inter-unit Remote
control control
wiring wiring
Type K1
5P terminal board
L1 L2 U1 U2
Power Inter-unit
supply control
wiring
Type K2
5P terminal board
L1 L2
Inter-unit
Power
supply
Remote
control
wiring
U1 U2
control
wiring