Connect the Cable to Tank Unit
WARNING
This section is for authorized and licensed electrician only. Work behind the Control Board Cover secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
Fixing of Power Supply Cable and Connecting Cable
1 Connecting cable between Tank Unit and Outdoor Unit shall be approved polychloroprene sheathed flexible
cord, type designation 60245 IEC 57 or heavier cord. See below table for cable size requirement.
Model
Connecting Cable Size
Tank Unit
Outdoor Unit
ADC0916H9E8
WH-UX09HE8 / WH-UX12HE8 /
WH-UX16HE8 / WH-UD09HE8 /
WH-UD12HE8 / WH-UD16HE8
6 x 1.5 mm
2
o
Ensure the colour of wires of Outdoor Unit and the terminal no. are the same to the Tank Unit
respectively.
o
Earth wire shall be longer than the 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.
o
Isolating device (disconnecting means) should have minimum 3.0 mm contact gap.
o
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.
Model
Power Supply
Cord
Cable Size
Isolating Devices
Recommended RCD
Tank Unit
Outdoor Unit
ADC0916H9E8
WH-UX09HE8 /
WH-UX12HE8 /
WH-UX16HE8 /
WH-UD09HE8 /
WH-UD12HE8 /
WH-UD16HE8
1
5 x 1.5 mm
2
20A
30mA, 4P, type A
2
5 x 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.
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
Terminals on the Outdoor Uni
5
4
3
2
1
t
Colour of wires (Connecting cables)
Terminals on the Tank Unit
L
A1
L
A2
L
A3
N
L
B1
L
B2
L
B3
N
1
2
3
4
5
(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
Power Supply 1
Power Supply 2
Tank unit/Outdoor unit
connection
Main Power Supply
Backup Heater
Power Supply
3
4
5
Holder (Clamper)
Terminal Board
RCCB
*1
*1
Bushing
Connecting Cable
Power Supply Cable
