Installation and Maintenance
21
Max. Running Current(A): REFER TO NAMEPLATE
Model Capacity (Btu/h)
Power
Supply
ELB
Power Source
Cable Size
Transmitting Cable
Size
Nominal
Current (A)
Nominal
Sensitive
Current (mA)
EN60335-1
EN60335-1
18K
220-240V ~, 50Hz
20
30
2
3
×
2
.
5mm
2
5
×
1
.
5mm
24K
220-240V ~, 50Hz
32
30
2
3
×
4
.
0mm
2
4
×
1
.
5mm
36K
380-415V 3N~, 50Hz
40
30
2
5
×
2
.
5mm
2
4
×
1
.
5mm
48K/55K
380-415V 3N~, 50Hz
32
30
2
5
×
2
.
5mm
2
4
×
1
.
5mm
10.5 Electrical Installation
●
Use an ELB (Electric Leakage Breaker). If not used, it might cause an electric shock or a fire.
●
Do
not
operate
the
system
until
all
the
check
points
have
been
cleared
.
(
A
)
Check
to
ensure
that
the
insulation
resistance
is
more
than
2
,
by
measuring
the
M
Ω
resistance
between
ground
and
the
terminal
of
the
electrical
parts
.
If
not
,
do
not
operate
the
system
until
the
electrical
leakage
is
found
and
repaired
.
(
B
)
Check
to
ensure
that
the
stop
valves
of
the
outdoor
unit
are
fully
opened
and
then
start
the
system
.
NOTES
:
1
)
Follow
local
codes
and regulations when selecting field wires.
2
)
The wire sizes marked in the table are selected at the maximum current of the unit according to the
European Standard, EN60335-1. Use the wires which are not lighter than the ordinary polychloroprene
sheathed flexible cord (code designation H07RN-F).
When
connecting
the terminal block using flexible cord, make sure to use the round crimp-style terminal
for connection to the power supply terminal block.
Place the round crimp-style terminals on the wires up to the covered
part and secure in place.
When
connecting
the terminal block using a single core
wire, be sure to perform curing.
3
)
When transmitting cable length is more than 15 meters, a larger wire size should be selected.
4
)
Use a shielded cable for the transmitting circuit and connect it to ground.
Flexible cord
covered part
Round
crimp
-
style
terminal
Terminal
Single
core
wire
5
)
In
the
case
that
power
cables
are
connected
in
series
,
add
each
unit
maximum
current
and
select
wires
below
.
*
In
the
case
that
current
exceeds
63A
,
do
not
connect
cables
in
series
.
6
)
To be in compliance with EN 61000-3-3, the product shall be connected only to a supply of the system
impedance:Zsys
≤
0.27Ω(18Κ
), Zsys
≤
0.123Ω (24Κ
).
Before connecting the product to public power network
，
please consult your local power supply authority to ensure the power network meet above requirement.
Current I (A)
2
Wire Size (mm )
i
≤
6
0
.
75
6
＜
i
≤
10
1
10
＜
i
≤
16
1
.
5
16
＜
i
≤
25
2
.
5
25
＜
i
≤
32
4
32
＜
i
≤
40
6
40
＜
i
≤
63
10
63
＜
i
*
Selection According to EN60335-1
AUV-18HR4SSA1
AUV-24HR4SFA1
AUV-36HR6SDB1
AUV-48HR6SEC1
AUV-60HR6SPC1
RPFC-2.0UNZ1NH
RPFC-3.0UNZ1NH
RPFC-4.0UNZ1NH
RPFC-6.0UNZ1NH
RPFC-6.5UNZ1NH
YFGN18BZNRZUH1
YFGN24BZNRZUH1
YFGN36BZMRZUH1
YFGN48BZMRZUH1
YFGN55BZMRZUH1
RAS-2.0UNZGNH1
RAS-3.0UNZGNH1
RAS-4.0UNZGMH1
RAS-6.0UNZGMH1
RAS-6.5UNZGMH1
●
Blowing out the surviwal heating air
When
stoping
the
air
conditioner
in
normal
operation
,
the
fan
motor
would
run
with
low
speed
for
a
while
to
blow
out
the
residual
heating
air
.
