52
12.1.4 Connect the Cable to Mono Bloc Unit
WARNING
This section is for authorised and licensed electrician only. Work behind the cabinet front plate secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
Remove The Cabinet Front Plate
12.1.4.1
1. Remove the 4 mounting screws as shown in the illustration.
2. Slide the cabinet front plate downward to release the pawls. Then, pull it toward front to remove it.
Fixing of Power Supply Cord
12.1.4.2
(REFER TO WIRING DIAGRAM AT UNIT FOR DETAIL)
1. 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
WH-MXC09J3E5 and WH-MXC12J6E5
1
3 x min 4.0 mm
2
30A
30mA, 2P, type A
2
3 x min 4.0 mm
2
30A
30mA, 2P, type AC
2. To avoid the cable and cord being damaged by sharp edges, the cable and cord must be passed through the
designated holes before being connected to the terminal block.
3. Secure the cable onto the control board with the holder (clamper).
Wire Stripping and Connecting Requirement
12.1.4.3
Mo
u
nting
s
crew
s
Mo
u
nting
s
crew
s
C
ab
inet front pl
a
te
f
Terminal on the Mono bloc unit
L
N
L
1
N
1
(Power Supply Cord)
Terminals on the isolating device from
power supply (Disconnecting means)
L
N
L
1
N
1
Power Supply 2
Power Supply 1
Termin
a
l
s
crew
Tightening torq
u
e
cN•m
{
kgf•cm}
M4
157~196
{
16~20}
M5
196~245
{
20~25}
*1 - E
a
rth wire m
us
t
b
e longer th
a
n other c
ab
le
s
for
sa
fety re
as
on
s
.
Power
Su
pply Cord
*1
5 mm or
more
(g
a
p
b
etween wire
s
)
Termin
a
l
b
o
a
rd
Wire
s
tripping
No loo
s
e
s
tr
a
nd
when in
s
ert
10 ±
1
m
m
ACCEPT
Cond
u
ctor
over in
s
ert
Cond
u
ctor not
f
u
lly in
s
ert
Cond
u
ctor
f
u
lly in
s
ert
PROHIBITED
PROHIBITED
Summary of Contents for WH-MXC09J3E5
Page 38: ...38 8 Block Diagram ...
