Panasonic WH-UD16HE8, Service Manual

Page: 19 / 44

61
Screws
Screws
11.1.5.2 Fixing of Power Supply Cord
and Connecting Cable
1. Connecting cable between Indoor Unit and
Outdoor Unit shall be approved polychloroprene
sheathed 4 × 1.5 mm
2
flexible cord, type
designation 60245 IEC 57 or heavier cord.

Ensure the colour of wires of Outdoor Unit and
the terminal no. are the same to the Indoor
Unit respectively.

Earth wire shall be longer than other wires as
shown in the figure for the electrical safety in
case of the slipping out of the cord from the
Holder (Clamper).
2. An isolating device must be connected to the
power supply cable.

Isolating device (disconnecting means) should
have minimum 3.0 mm contact gap.

Connect the approved polychloroprene
sheathed power supply 1 cord and power
supply 2 cord and type designation 60245 IEC
57 or heavier cord to the terminal board, and
to the other end of the cord to isolating device
(Disconnecting means). See below table for
cable size requirement.
For model S*C09*3E8
Power Supply
Cord
Cable Size
Isolating
Devices
Recommended
RCD
1
5 × minimum
1.5 mm
2
20A 30mA, 4P, type A
2
3 × minimum
1.5 mm 2
15/16A 30mA, 2P, type AC
For model S*C12/16*9E8
Power Supply
Cord
Cable Size
Isolating
Devices
Recommended
RCD
1
5 × minimum
1.5 mm
2
20A 30mA, 4P, type A
2
5 × minimum
1.5 mm 2
20A 30mA, 4P, type AC
3. To avoid the cable and cord being damaged by
sharp edges, the cable and cord must be passed
through a bushing (located at the bottom of
Control Board) before terminal board. The bushing
must be used and must not be removed.
For model S*C09*3E8
Terminal on the outdoor unit
Colour of wires (Connecting cables)
Terminal on the indoor unit L
A1
L
A2
L
A3
N L N
L N
(Power Supply Cord)
Terminals on the isolating device
from power supply (Disconnecting
means)
L
A1
L
A2
L
A3
N
Indoor unit/Outdoor unit
connection
Power Supply 1
Main Power Supply
or Main + Backup
Heater Power Supply
Booster Heater
Power Supply
Power Supply 2
1 2 3 4 5
1 2 3 4 5
For model S*C12/16*9E8
1 2 3 4 5
1 2 3 4 5
Terminal on the outdoor unit
Colour of wires (Connecting cables)
Terminal on the indoor unit
L
A1
L
A2
L
A3
N L
B1
L
B2
L
B3
(Power Supply Cord)
Terminals on the isolating device
from power supply (Disconnecting
means)
L
A1
L
A2
L
A3
N L
B1
L
B2
L
B3
N
N
Power Supply 1 Power Supply 2
Indoor un it/Outdoor un it
connect ion
Main Power Supply
B Backup
Heater Power Supply
Power Supply Cord
Holder
(Clamper)
Terminal Board
RCCB/ELCB
*1
*1
Connecting Cable
Terminal screw Tightening torque cN•m {kgf•cm}
M4 157~196 {16~20}
M5 196~245 {20~25}
*1 - Earth wire must be longer than other cables for safety reasons
11.1.5.3 Wire Stripping and Connecting
Requirement
Wire stripping
5mm or
more
(gap between
wires)
No loose strand
when insert
Indoor/outdoor
connecting
terminal board
1
0
±
1
m
m
ACCEPT PROHIBITED
Conductor
over insert
Conductor not
fully insert
Conductor
fully insert
PROHIBITED