Midea MCCDH30A-TA3SL, Technical & Service Manual

Page: 36 / 169

Air-cooled modular chiller unit
36
30kW module
(
Only for MCCH30A-TA3SL, MCDH30A-TA3SL)
XP 8
XP 7
XS 8
XS 7
T 3B
T3 A
CO
MP A
2
5
21
3
6
22
4
T3(
W)
A1
A2
T2(
V)
T1(
U)
H
E
AT_A
Q
P
(E)
P
W
M
(
B
)
RED
BL
A
C
K
C
H
E
C
K
C
N
1
8
(W
H
I
T
E）
P
O
W
E
R
P
W
M
C
N
1
7
C
N
1
1
（B
L
AC
K
）
C
N
2
4
P
U
M
P
H
E
A
T
C
N
1
（WH
I
TE
）
P
M
V
(
A
)
C
N
2（R
E
D
）
P
M
V
(
B
)
C
N
5
H
&
L
_
PR
O
C
N
6
C
O
M
(
I
)
C
N
2
5
C
O
M
(
O
)
C
N
1
0
C
N
2
1
C
N
1
4
P
W
M
(
A
)
C
N
1
9
（WH
IT
E
）
T
R
A
N
S
OU
T
F
A
N
_
A
C
N
3
0
F
A
N
_
B
C
N
3
1
CO
MP B
2
1 5
21
3
6
22
4
T3(
W)
A1
A2
T2(
V)
T1(
U)
R
E
D PU
R
PL
E
B
L
AC
K
B
L
U
E
BL
U
E
R
E
D
H
2
P
1
P
2
H
1
W
H
I
T
E
S
1
T
3
A
T
3
B
T
4
X
T
7
X
T
5
W
1
W
2
H
E
A
T
_
B
T
R
A
N
S
O
N
/
O
F
F
AL
A
R
M
B
L
A
C
K
R
E
D
R
E
D
BLUE BLA
CK
XS 9
XP 9 T4
WH
I
TE
R
E
D
B
L
U
E
2
0
2
0
90
1
9
1
0
5
5
K1(
A
)
H_P
R
O(A)
K1(
B
)
H_P
R
O(B)
L_P
R
O(1A)
L_P
R
O(1B)
B
L
AC
K
L
1
L
2
CN
6
CN
5
BLAC
K
S2
S3
ON
S
W
2
S4
S5
OF
F
S7
S8
ON
S
W
3
S9
OF
F
ORA
N
G
E
RE
D
L_P
R
O(2B)
L_P
R
O(2A)
C
N
1
5
CN
8
CN
7
L
3
L
4
CN
4
C
N
2
2
C
N
2
6
ON
/
OF
F
P
Q
E
B
L
A
C
K
X
T
6
B
L
AC
K
R
E
D
R
E
D
BL
A
CK
5
V
Y&G
RED
WHITE
K
M
1
H
IG
H
LO
W
B
L
AC
K
B
L
U
E
R
E
L
A
Y
R
E
L
A
Y
F
A
N
CA
P
COLD MOD
U
LE
C
N
1
C
N
2
P
UM
P
W
V
U
P
U
M
P
2
5
21
3
6
22
4
A1
A2
BLA
CK
Y&G
WH
I
T
E
BL
U
E
RE
D
RE
D
WH
I
T
E
BL
U
E
RE
D
BL
A
C
K
T
3A
2
2
4 6 8
R
E
D
B
L
UE
R
E
D
X
T
4
C
O
ND
E
NS
E
R
T
E
M
P B
CO
N
DENSE
R
TEM
P A
H
I
G
H
P
R
E
S
S
U
R
E
P
R
O
T
E
C
T
O
R B
L
O
W
P
R
E
S
S
U
R
E
P
R
O
T
E
C
T
O
R
1
B
L
O
W
P
RE
S
SU
R
E
P
R
OT
E
CT
O
R
1
A
H
I
G
H
P
R
E
S
S
U
R
E
P
R
O
T
E
C
T
O
R A
T
E
M
P
P
R
O
T
E
C
T
O
R
S
W
I
T
C
H A
T
E
M
P
P
R
O
T
E
C
T
O
R
S
W
I
T
C
H B
OR
A
NGE
RED PU
R
PLE
YE
L
LOW
CURRENT(
B
2)
CURR
E
NT(A2)
RED
PU
R
PLE
CO
M
N
C
FLOW SW
T
IC
H
HEA
T
（
E
F
FEC
T
O
N
N
O.
0
MO
D
UL
E
）
(
O
N
/
OF
F
S
IG
N
A
L
!
)
LO
W
VOLTAG
E
S
IGNA
L
DON'
T
CONNEC
T
HIG
H
VO
L
TAGE
!
P
R
OVI
D
E
B
Y
U
SE
R
P
R
OVI
D
E
B
Y
U
SE
R
(
O
N/O
F
F
S
IGN
A
L!
)
2
-
WA
Y
T
E
RMI
N
A
L
X
T
3
11-W
A
Y
TERM
I
NA
L
XT
2
BLU E
BLU E
GRA Y
YEL
LOW
BLACK
GR
AY
BLACK
RED
BRO
WN
RED
RED
GRAY
(
Y
E
L
L
O
W
)
(R
E
D
)
BL UE
BL UE
RE D
YE LL OW
(B
L
UE
)
BLUE
M
A
I
N
B
O
A
R
D
CURRENT BOARD
OR AN GE
BLU E
PU RP LE
RE D
P
W
M
P
R
E
S
S
U
R
E
R
E
L
I
F
V
A
L
V
E
BLU E
Y&
G
BLU E
RED
BLU E
M
ID
D
L
E
W
I
R
E
J
O
I
N
T
M
ID
D
L
E
W
I
R
E
J
O
I
N
T
M
IDDL
E
WI
R
E
JO
I
N
T
S.V(A) 4-VALVE A
4
-
WA
Y
TE
R
MI
N
A
L
XT
1
P
O
W
E
R
I
N
SW
3
S
1
1
6
-WA
Y
DA
I
L
S
W
ITC
H
FU
N
CTI
O
N
D
A
I
L
S
WIT
C
H
A
D
DRE
S
S
1 2
3
ON
3 4
SW
2
1 2
OFF
S2
O
N:COOL
O
NLY OFF
:
R&C
S3
O
N:DIGIT
A
L OFF
:
FIXED
S4
O
N:H-EEP
R
OM OFF
:
NORMAL
S5
O
N:C-EEP
R
OM OFF
:
NORMAL
S7
O
N:REMOT
E
CONTROL
OFF:WIR
E
CONTROL
S8
O
N:LOW T
E
MP.MODE
OFF:NOR
M
AL
S9
O
N:30KW
OFF:65/
1
30/200/
2
60KW
S2 S
3
S4 S5
S7 S8 S9
SW2/
S
W3 FUCT
I
ON DEFIN
A
TION
ON
OFF
DEFA
U
LT SETT
I
NG
REMO
T
E TURN
O
FF
OFF
ON/
O
FF
S7
ON
REMO
T
E FUCTI
O
N SETTING
REMO
T
E COOL ON
OFF
REMO
T
E HEAT
ON
OFF
SW
3
1 2
3
ON
3 4
SW
2
1 2
OFF
S2 S
3
S4 S5
S7 S8 S9
ON
OFF
DIGI
T
AL
FIXED
BLA
CK
RE
D
BL
UE
A
C
C
O
N
T
AC
T
O
R
A
C
C
O
N
T
AC
T
O
R
A
C
C
O
N
T
AC
T
O
R
C
R
AN
K
C
O
M
P
R
E
S
S
O
R A
BL
UE
RE
D
W
H
IT
E
COMPR
E
SSO
R
B
BL
UE
RE
D
W
H
IT
E
Y
&
G
CRAN
K
Y
&
G
BLA
C
K
BL
UE
RE
D
W
H
IT
E
BLA
CK
M
ID
D
L
E
W
I
R
E
J
O
I
N
T
IN -L ET WA TE RT EM PS EN SO R
AN TI -F RE EZ IN GT EM PS EN SO R
TO TA L OU T- LE T WA TE R TE MP
UN IT OU T- LE T WA TE R TE MP
M
A
R
K
：N
O
RM
A
L
M
O
D
U
L
ES
D
O
N'
T
I
N
C
LU
D
E
B
R
O
K
E
N
L
I
N
E
A
N
D
T
H
EI
R
J
OI
N
T
W
I
RE
S
OU
T
DOO
R
W
I
RIN
G
D
I
AGR
A
M
BROWN BLUE BROWN
BLUE
B
L
AC
K
B
L
AC
K
B
L
U
E
BLA
C
K
BLA CK
RE D
BLU E
WH IT E
YE
L
LO
W
S.V(A) 4-VALVE B
FLOW
At
ta
ch
ed
p
ic
tu
re
(I
) E
le
ct
ric
Dr
aw
in
g
of
M
ai
n
Un
it
an
d
Au
xi
lia
ry
Un
it
B
L
AC
K
POWER PROTECTOR
(COM)
(NC)
(NO)
7 Wire Diagrams
7.1 Wiring diagrams