Panasonic U-26PE1U6, Technical Data & Service Manual

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1. Specifications
Inter-unit
power wiring
Power wiring Inter-unit
control wiring
8P terminal board
Outdoor Unit
U1 U2 1 2 G L1 L2
Wiring System Diagrams
Basic wiring diagram for standard control
ALWAYS COMPLY WITH NATIONAL AND LOCAL
CODE REQUIREMENTS.
U2
L2
U1
R2
R1
L1
L1
L2
U1
U2
2
1
L1
L2
2
1
1
2
G
*2
A
B
C
*2
*1
L1
L2
Power supply
208 / 230 V, 60Hz, 1PH
*2 Disconnect switch (Field Supply)
Maximum connectable indoor units: 8
Outdoor unit
INV unit
Indoor
unit
Grounding Wire
Grounding Wire
Ground
Ground
Ground
Inter-unit power line
208 / 230 V, 60 Hz, 1PH
Remote Controller
WHT
BLK
Power supply
208 / 230 V, 60Hz, 1PH
NOTE
* 1 When the power source is not supplied from the outdoor unit via the
inter-unit power line, provide external power source in the indoor unit.
* 2 Disconnect Switch may be needed by the National/Local code.
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.
60LQGE
(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.
Indoor Unit
Inter-unit
control
wiring
Power
supply
Remote
control
wiring
5P terminal board
L1 L2 U1 U2
Type K1
L1 L2
Inter-unit
control
wiring
U1
Power
supply
U2
5P terminal board
Type U1, T1, F1
Remote
control
wiring
L1 L2 U1 U2 R1 R2
6P terminal board
Type F2
Type T2
Power
supply
Remote
control
wiring
Inter-unit
control
wiring
Type U2
Type K2
Power
supply
Inter-unit
control
wiring
Remote
control
wiring
L1 L2
U1 U2 R1 R2
L1 L2 U1U2 R1R2
L1 L2 U1 U2
5P terminal board
Power
supply
Inter-unit
control
wiring
Stranded wire
Ring
pressure
terminal
Strip 3/8” (10 mm)
Fig. 1-3
Screw and
Special washer
Ring
pressure
terminal
Terminal board
Ring pressure
terminal
Screw
Special
washer
Wire
Wire
Fig. 1-4
How to connect wiring to the terminal
For stranded wiring
(1) Cut the wire end with cutting pliers, then strip the insulation
to expose the stranded wiring approx. 3/8 inch (10 mm) and
tightly twist the wire ends. (Fig. 1-3)
(2) Using a Phillips head screwdriver, remove the terminal
screw(s) on the terminal board.
(3) Using a ring connector fastener or pliers, securely clamp
each stripped wire end with a ring pressure terminal.
(4) Place the ring pressure terminal, and replace and tighten
the removed terminal screw using a screwdriver. (Fig. 1-4)
Wiring sample
Type F2
WARNING
Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazard may also occur.
Therefore, ensure that all wiring is tightly connected.
When connecting each power wire to the terminal, follow the instructions on “How to connect wiring to the terminal” and fasten the
wire securely with the fixing screw of the terminal board.
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Use this screw when connecting the shield
for the remote control wiring to ground.
Band
(supplied)
Conduit
(field supply)
Power supply
wiring
Rock nut
Remote Control
Wiring
Inter-unit Control
Wiring
Power Supply
1
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