V6R VRF 50Hz
79
P
art 5 - Electrical Compon
ents and Wiring Diagr
ams
Figure
5
‐
7.2:
MS01
wiring
diagram
T1
C
1
Po
w
er
in
Ou
td
oo
r
/
Up
st
re
am
M
S
Do
wns
tr
ea
m
M
S
T2
C
2
Bl
ue
Re
d
XS2
XS1
XP2
XP1
T
he
w
iri
ng
p
ic
tur
e
s
ho
w
n
is
f
or
r
e
fe
re
nc
e
on
ly,
ac
tu
al
pr
od
uc
t m
a
y v
a
ry.
G
ui
de
f
o
r m
a
in
boa
rd di
al
c
o
de
C
O
DE
NA
M
E
XS
1
～
X
S
2
C
onn
ec
to
rs
XP
1
～
X
P
2
Co
nn
ec
tor
s
T1
C
1
～
T2
C
2
Te
m
per
at
ur
e S
ens
or
E
E
V
E
lec
tr
onic
E
xp
ans
io
nVa
lv
e
Er
ro
r
C
od
e
E3
E4
C
om
m
un
ic
at
io
n f
ailu
re
be
tw
ee
n M
S
an
d
m
as
te
r o
ut
do
or
uni
t
E2
F7
M
ai
n p
ow
er
off
D
IP
sw
itc
h fo
r nu
mb
er o
f re
frig
eran
t
leak
age
se
nso
rs
N
ote
,Un
der
no
rma
l ci
rcum
sta
nce
s,
M
S
is c
onn
ecte
d t
o th
e cl
osin
g s
ign
al
ou
tp
ut b
y th
e r
efrig
era
nt s
ens
or
.
Wh
en
Ms
de
tec
ts
th
e
op
en
ing
s
ig
nal
of
th
e re
frig
era
nt s
ens
or
, i
t ind
ica
tes
that
the
re is
re
frige
ran
t ga
s le
aka
ge
.
E
NC1
PO
W
ER
EB
V
-B
SW1
S
W2
DS
P
1
DS
P
2
EBV-A
T1C1
T2C2
S1
S2
ON
SW
4
EN
C
1
S1
-1
O
FF:
refr
ige
rant
lea
kag
e fu
nct
ion
inv
alid
. (de
fau
lt)
O
N
: con
nec
ted
to r
efri
ger
ant
leak
ag
e se
nso
r.
S1
-2
O
FF:
dry
con
tac
t is
alw
ays
clo
sed
, an
d o
pen
ed
whe
n b
ein
g
trig
ger
ed b
y r
efrig
era
nt l
eak
age
. (d
efa
ult)
O
N
: dry
con
tac
t is
alw
ays
ope
ne
d, a
nd
clos
ed
whe
n b
ein
g tri
gge
red
by
ref
rige
ran
t le
aka
ge.
S2
ON
SW
3
EBV-C
EBV-B
EEV
EBV
-A
EB
V
-C
EE
V
M
a
in
B
oar
d
“ +
5V
G
N
D
+
12V
”
ON
LY
U
S
ED
FO
R
TE
STI
N
G
ON
/OF
F
SW
IT
CH
CN7
C
N6
CN3
CN
5
C
N4
C
N1
C
N2
Mal
fun
ct
io
n o
f s
ub
coo
ler
ou
tle
t t
hermi
st
or(
T1
C
1)
EE
PR
O
M
e
rr
or
UP
S
EB
V
-A
～
EB
V
-C
Mal
fun
ct
io
n o
f s
ub
coo
ler
inl
et
the
rm
is
to
r(T2C
2)
E7
F6
E
le
ct
ro
nic b
all va
lve
co
nn
ec
tio
n fa
ilu
re
F9
A1
FE
MS
h
as
no
ad
dre
ss
w
hen
fi
rs
t p
ow
er
ed
on
O
ve
rlo
ad
er
ro
r(
T
he
to
ta
l c
ap
ac
ity
of
in
doo
r u
ni
t c
onn
ec
te
d b
y
M
S
is
m
or
e t
han
12
)
Re
fr
ige
ran
t
le
ak
ag
e p
ro
tec
tio
n o
r ENC1
DIP
s
w
itch
va
lu
e
>
5
E
lec
tr
on
ic
B
all
Va
lv
e
S1
ON
XT
1
XT
1
XT
2
Refrige
rant
leakage s
ensor
Te
rm
in
al
B
lo
ck
Te
rm
in
al
B
lo
ck
( C
urre
nt
ra
ng
e:
0
-1
A)
（
Vo
lta
ge
ran
ge:
0-
24V A
C/
DC
)
L
N
M-O
M-I
P Q E
To
in
do
or
un
its
c
om
m
.b
us
Wh
ite
Bu
le
Y
ello
w
Gr
ay
L
N
Bl
ac
k
Bl
ac
k
S
1-
1
O
F
F:
lo
w
t
em
per
at
ur
e
coo
ling
f
unc
tion
v
ali
d.
(def
ault
)
ON
: l
ow
te
mp
er
atu
re
c
oo
lin
g fu
nc
tio
n i
nv
al
id
.
S
2-2
R
es
erv
ed
P Q E
P Q E
Refrige
rant
leakage s
ensor
Refrige
rant
leakage s
ensor
Refrige
rant
leakage s
ensor
Y/G
CO
M
NC
Re
frig
era
nt
lea
kage
s
en
sor
C
O
M
O
N
/O
F
F
(V
ol
tag
e r
ang
e:0
-12
V
/D
C
)
Y/
G
