T
ro
u
b
l
eshooting
S
ams
u
ng
El
ectronics
4-
5
غ͑
Vacuum Operation
ـ
O
peration
to
faci
l
itate
v
ac
uu
m
to
open
the
v
a
lv
e
after
the
Ou
tdoor
U
nit
repair.
غ
Piping Inspection Operation
ـ
O
peration
mode
to
check
the
stat
u
s
of
the
piping
between
the
M
CU
and
the
indoor
u
nit.
ـ
H
eat
P
u
mp
Mode
l : Ou
tdoor
temperat
u
re
is
more
than
1
5
°C / C
oo
l
ing
commissioning
start
Ou
tdoor
temperat
u
re
is
l
ess
than
1
5
°C / H
eating
commissioning
start
غ
Discharge Mode Operation
ـ
Ou
tdoor
power
is
t
u
rned
off
,
the
I
n
v
erter
P
CB
and
F
an
P
CB
charging
a
high
D
C v
o
l
tage
,
so
dangero
u
s
to
to
u
ch.
- T
o
rep
l
ace
the
P
CB,
first
t
u
rn
off
the
power
and
the
begin
if
D
C v
o
l
tage
is
discharged.
- I
f
not
u
se
the
discharge
mode
,
the
discharge
time
of
abo
u
t
1
5
min
u
tes
takes.
- I
f
an
error
occ
u
rs
,
the
discharge
mode
ma
y
not
proper
ly
r
u
n.
(W
ait
u
nti
l
nat
u
ra
l
discharge.)
- I
n
partic
ul
ar
, E 464, E
3
64,
power
de
v
ices
ma
y
be
damaged
,
therefore
do
not
u
se
the
discharge
mode.
ـ
Bl
ock
the
I
n
v
erter
P
CB
3
-
phase
re
l
a
y
after
connected
the
power
,
and
thro
u
gh
compressor
,
D
C v
o
l
tage
is
discharging.
- I
N
V1
and
I
N
V
2
D
C v
o
l
tage
d
u
ring
discharge
mode
are
disp
l
a
y
ed
a
l
ternate
ly
.
-
Discharge
mode
Disp
l
a
y (
Rotate
the
three
page
disp
l
a
y,
as
shown
be
l
ow.)
'K' 'A' ' ' ' ‘
ࣖ
D
C L
ink
V
o
l
t
1 ( F
or
e
x
amp
l
e
, 1
2
0[V] 0 1
2
0
disp
l
a
y
)
ࣖ
D
CL
ink
V
o
l
t2
( F
or
e
x
amp
l
e
, 1
2
0[V] 0 1
2
0
disp
l
a
y
)
ࣖ
'K' 'A' ' ' ' ‘
ࣖ
D
C L
ink
V
o
l
t
1 …
ـ
Discharge
is
comp
l
ete
,
the
power
of
the
I
n
v
erter
P
CB
and
F
an
P
CB
is
being
b
l
ocked
,
comm
u
nication
f
u
nction
is
b
l
ocked
, E
2
06
wi
ll
occ
u
r.
ـ
I
f
want
operation
again
after
comp
l
ete
discharge
mode
:
Restart
after
K
3
ke
y
to
Reset
or
Power
Reset.
H
ow
to
I
nitiate
K1 T
act
S
witch
7
times~
11
times
C
ompressor
OFF
I
ndoor
U
nit
/Ou
tdoor
F
an
OFF
4W
a
y V
a
lv
e
OFF
V
a
lv
es
O
pen
a
ll v
a
lv
es
ma
x
im
u
m
E
tc.
I
f
not
t
u
rn
off
the
v
ac
uu
m
mode
,
the
start
of
norma
l
operation
is
prohibited.
