P
ipin
g
Di
ag
r
a
m
Sa
m
s
u
n
g
El
ec
troni
c
s
2
19
Main cooling operation
ƒ
Purpose
S
w
it
c
h
to
h
ea
tin
g
m
o
de
on
so
m
e
in
d
oor
u
nits
w
hi
l
e
u
sin
g
c
oo
l
in
g
m
o
de
ƒ
Control specifications in detail
7-3 Functions
(
c
ont
.
)
7-3-2-3 Normal operation modes
(
c
ont
.
)
7-3-2 Control
(
c
ont
.
)
A
c
t
ua
tor
A
bb
r
e
v
.
-
N
or
m
a
l
Coo
l
in
g
Co
m
pr
e
ssor
COM
P
Op
e
r
a
tion
T
a
r
ge
t
hi
g
h
pr
e
ss
u
r
e
c
ontro
l
(
defau
l
t
:
7
k
gf
/
)
R
a
n
ge
14 - 1
20
Hz
El
ec
troni
c
Ex
p
a
nsion
Va
lv
e
–
M
a
in
(
M
a
in
EE
V
)
E_
M
Op
e
r
a
tion
Coo
l
in
g
& H
ea
tin
g
ca
p
ac
it
y
ba
l
a
n
ce
c
ontro
l
R
a
n
ge
300
~
2000
st
e
p
El
ec
troni
c
Ex
p
a
nsion
Va
lv
e
– E
VI
(E
VI
EE
V
)
E_E
VI
Op
e
r
a
tion
*
Subc
oo
l
in
g
c
ontro
l
(
defau
l
t
:
S
C
20
k)
R
a
n
ge
0
-48
0
st
e
p
S
o
l
e
noi
d
Va
lv
e
- 4w
a
y
V
_4W
Op
e
r
a
tion
O
ff
S
o
l
e
noi
d
Va
lv
e
– E
VI
B
y
p
a
ss
V
_E
B
Op
e
r
a
tion
On
(
Op
e
n
): *T_w > 4
0
ఁ
or
5
0
Hz
ײ
O
ff
(
C
l
os
e
): T_w <
3
8
ఁײ
a
n
d
6
5
Hz
װ
S
o
l
e
noi
d
Va
lv
e
– E
VI
V
_E
VI
Op
e
r
a
tion
On
(
Op
e
n
)
S
o
l
e
noi
d
Va
lv
e
– H
ot
G
a
s
B
y
p
a
ss
V
_HG
Op
e
r
a
tion
O
ff
(
C
l
os
e
)
S
o
l
e
noi
d
Va
lv
e
–
A
ccu
m
u
l
a
tor
Oi
l R
e
t
u
rn
V
_
A
R
Op
e
r
a
tion
On
(
Op
e
n
)
S
o
l
e
noi
d
Va
lv
e
– H
ot
G
a
s
B
y
p
a
ss
2
V
_HG
2
Op
e
r
a
tion
M
a
in
Coo
l
in
g
:
On
(
Op
e
n
),
Coo
l
in
g
:
O
ff
(
C
l
os
e
)
S
o
l
e
noi
d
Va
lv
e
-L
i
q
u
i
d
T
ube
V
_L
Op
e
r
a
tion
O
ff
(
C
l
os
e
)
S
o
l
e
noi
d
Va
lv
e
–
M
a
in
Coo
l
in
g
V
_
MC
Op
e
r
a
tion
O
ff
(
C
l
os
e
)
S
o
l
e
noi
d
Va
lv
e
-H
ot
G
a
s
Ch
a
r
g
in
g
V
_H
C
Op
e
r
a
tion
O
ff
(
C
l
os
e
) /
On
(
Op
e
n
) w
h
e
n
hi
g
h
pr
e
ss
u
r
e
is
l
o
w
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