MEES18K070
H
ydr
o u
n
it
8
4. ELECTRICAL WIRING DIAGRAMS
Hydro unit
4. ELECTRICAL WIRING DIAGRAMS
CMH-WM250, 350, 500V-A
t°
t°
t°
t°
U
U
CN1
10
FT001
FT002
SC-T
SC-R
CNDC
CNVDC
CN2
CN17V
CN2
CN301
CN601
CN001
CN801
CN002
CN802
CN303
CN305
CNRST
CN401
CN301
CN412
CNAC
CNFG
CT2
SC-S
SC-P1
SC-P2
CN4
CN4
CN102
CN101
INV
-BOARD
CN401
CN402
CN41
1
CN413
PS-BOARD
MAIN-BOARD
CN701
LEV
M
12
3
1
2
4
5
3
12
56
4
3
2
1
12
1
2
3
1
2
3
5
1
2
4
3
12
CN306
35
4
2
1
3
5
4
2
1
12
12
2
34
1
12
56
4
3
2
1
12
12
3
12
23
1
3
2
1
4
1
2
35
12
4
12
3
12
2
3
4
1
L
N
21
3
4
5
6
TH32
TH35
TH1
1
TH13
12
3
12
3
12
3
PSL
W
PSHW
12
ACL
SC-U
SC-V
SC-W
SV
3
white
yellow
H
W
V
U
MS 3~
WP
white
red
green
blue
green
green
green
yellow
red
red
black
white
white
white
pink
black
blue
white
red
blue
red
yellow
black
green
red
green
red
red
2
white
black
red
white
black
green
white
red
23
1
3
1
4
M1
M2
TB3
X01
X02
F
3.15A
CT
X52
PTC
CT1
DSA
Indoor/outdoor
T
ransmission Line
SWU01
SWU02
LD001
SWP02
SWP01
UP
DOWN
SWP03
TB01
LED4:CPU in operation
LED1:Normal operation(lit)
/Error(blink)
power supply
~220V
-240V
50Hz/60Hz
LED02:Normal operation(lit)
/Error(blink)
LED01:CPU in operation
PSR
LD601:power supply
Primary current
detection circuit
3
1
5
4
2
TB-N
TB-P
R
YPN
1
2
Z1
yellow
CN403
F 6.3A
F15A
Note:1.The broken lines indicate the field-supplied parts,and field work.
2.TB3 is transmission terminal block.
Never connect power line to it.
3.Control box houses high-voltage parts.
Before inspecting the inside of the control box, turn of
f the power
,
keep the unit of
f for at least 10 minutes, and confirm that the voltage
of the connector R
YPN on INV
-BOARD has dropped to DC20V or less.
4.The initial set values of switch on MAIN BOARD are as follows.
SWU01:0
SWU02:0
(Symbol explanation)
LEV
ACL
PSHW
,PSL
W
Pressure sensor(water)
Symbol
Name
AC reactor
Expansion valve
WP
Pump
Name
Symbol
H
Electric heater
PSR
Pressure sensor (refrigerant)
Fuse
F
Solenoid valve
SV
(Antifreeze)
TB01
T
e
rminal block
(for power source)
TB3
T
e
rminal block
(for T
ransmission)
TH1
1
,TH12,
TH32,TH35
Thermister sensor
Z1
Function setting connector
98
76
54
32
1
ON
ON
SW01
1
ON
10
98
76
54
32
1
10
87
65
43
21
SW001
SW002
SW1
1234
ON
SW1
123456
ON
0000005070.BOOK 8 ページ ２０１８年１１月１５日 木曜日 午後６時４１分
