V6R VRF 50Hz
24
Midea V
6
R
Series S
er
vice M
anual
Oil return operation in heating mode and defrosting operation
Figure 2-3.6: Refrigerant flow during oil return operation in heating mode and defrosting operation
EX
VA
EXV
EV
AP
T2
b
T1
T2
EXV
EV
AP
T2
b
T1
T2
EXV
EV
AP
T2
b
T1
T2
EXV
EV
AP
T2
b
T1
T2
T7
C
1
T3
TL
T9
T8
T6
A
T6
B
T7
E S C
T4
T5
C
o
o
lin
g
M
o
d
e
T
h
e
rm
o-
O
N
C
o
o
lin
g
M
o
d
e
T
h
e
rm
o-
O
N
C
o
o
lin
g
M
o
d
e
T
h
e
rm
o-
O
N
O
F
F
M
S
b
o
x
10
1
14
20
16
9
3
4
18
12
11
15
5
6
7
19
13
17
2
H
ig
h
p
re
ss
u
re
G
as
H
ig
h
p
re
ss
u
re
Li
q
u
id
/G
as
M
e
dium
p
re
ss
u
re
G
as
Lo
w
p
re
ss
u
re
G
as
