64
11.2.4 Connect the Cable to the Tank Unit
WARNING
This section is for authorized and licensed electrician only. Work behind the Control Board Cover
③
secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
CAUTION
Please take extra precaution when open the control board cover
③
and control board
④
for unit installation
and servicing. Failure to do so may cause injury.
11.2.4.1 Wiring System Diagram
RCCB/ELCB
RCCB/ELCB
CN4
CN-CNT
L
N
A
L
N
B
C
D
(L1)
(N1)
(L)
(N)
1
2
3
4
1
2
3
5
1
2
3
5
J2
TB1
TB2
1
2
1
2
3
1
2
3
1
2
3
L/1
N/2
3
U1
U2
R1
R2
Power Supply 2
Single Phase
230V ~ 50Hz
(For backup heater)
Power Supply 1
Single Phase
230V ~ 50Hz
(For main system)
TANK UNIT
(WH-ADF0309J3E5CM)
Remote controller
(ACXA75C2241*)
CZ-TAW1
INDOOR UNIT
(S-71WF3E)
OUTDOOR UNIT
(CU-2WZ71YBE5)
(UNIT A)
(UNIT C)
Remote controller
(CZ-RTC6BLW)
1 See below table for cable size requirements.
Model
Connecting Cable
Min. Cable Size
Max. Cable Length
Tank Unit
Outdoor Unit
Indoor Unit
WH-ADF0309J3E5CM CU-2WZ71YBE5
S-71WF3E
A
3 x min 1.5 mm
2
---
B
3 x min 4.0 mm
2
---
C
4 x min 4.0 mm
2
40 m
D
4 x min 1.5 mm
2
40 m
2 Refer to Outdoor Installation Manual for detailed connection between Outdoor Unit & Indoor Unit.
3 For optional accessories refer individual Installation Manuals.
11.2.4.2 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
WH-ADF0309J3E5CM
CU-2WZ71YBE5
4 x min 4.0 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).
