Daikin REYQ8-48PY1B, Service Manual

Page: 91 / 477

SiBE37-701_B Refrigerant Flow for Each Operation Mode
Refrigerant Circuit 80
Heating Oil Return Operation
Indo
or
U
n
it
Th
e
rm
o
sta
t "
O
FF"
He
ati
ng
Uni
t
BS
U
n
it
Li
q
u
id
Pi
p
e
St
o
p
Va
lv
e
Du
al
Pr
es
su
re
Ga
s P
ip
e
St
o
p
Va
lv
e
Eq
u
a
liz
in
g
Pi
p
e
20
S
B
20S
A
Tg
Ts
c
Ts
h
EV
T
SV
E
Tb
EV
M
Tf
S2
PH
Tdi
STD
TS_A
Le
ft
EV
J
St
o
p
V
a
lv
e
"O
F
F
"
Fan "
O
FF
"
Indoo
r un
it
Op
e
ra
tio
n
"O
N
"
Fan "
O
N"
Th
e
rm
o
sta
t "
O
N"
Hea
ti
n
g
Un
it
Ri
gh
t
Su
ct
io
n
Pi
p
e
Ts
c
E
q
u
a
liz
in
g
Pi
p
e
SV
P
S1
NPH
Ts
h
TL
EV
T
SV
E
Tb
Tg
20
S
A
Ta
Tf
EV
M
SV
L
Re
fri
ger
ant
Re
gul
ato
r
SVG
S2
NPL
IN
V
S1
P
H
Tdi
S
u
ct
io
n P
ipe
TS
_
A
"H
igh t
e
m
per
at
ur
e
, hi
gh pr
essur
e
gas"
"H
igh t
e
m
per
at
ur
e
, hi
gh pr
essur
e
l
iqui
d"
22
4p
ls
"Low
t
e
m
per
at
ur
e
, l
o
w
pr
essur
e
"
Li
q
u
id
Pi
p
e
SV
O
Fan "
LL"
Indo
or
U
n
it
Indo
or
U
n
it
He
ati
ng
Uni
t
BS
U
n
it
BS
U
n
it
"O
N
"
EV
SC
EV
HS
EV
H
EV
L
S
EV
L
EV
SC
EV
H
S
EV
H
EV
L
S
EV
L
EV
SC
EV
H
S
EV
H
EV
L
S
EV
L
O
n
e B
o
d
y
T
y
pe