WIRING DIAGRAM
MUENR-10/12-H6
12
"PUMP2"
and
wiring
terminal
ports
provide
only
the
switch
signal.The
load
should
be
controlled
through
the
AC
contactor
.
""REMOTE
ALARM
E9
H0
E4
E5
E6
EA
Eb
P2
P8
P1
P3
P4
P6
P5
EEPROM
malfunction
Communication
malfunction
between
the
main
controlling
chip
and
IPDU
T3&T4
temperature
sensor
malfunction
V
oltage
protection
DC
fan
motor
malfunction
5-minute
error
for
heating
mode
fan
in
area
A
High
pressure
protection
Low
pressure
protection
Outdoor
units
current
protection
Compressor
discharge
temp.
Protection
Condenser
high
temperature
protection
IPM
mode
protection
T
yphoon
protection
Tw
o
times
of
E6
protection
in
10
minutes
Radiator
high
temperature
protection
PL
C0
T
in
temperature
sensor
malfunction
C1
T
out
temperature
sensor
malfunction
F7
Tb1
temperature
sensor
malfunction
F8
Tb2
temperature
sensor
malfunction
Pb
Outdoor
units
anti-freezing
protection
CP
Anti-idling
protection
of
water
pump
C8
Flow
switch
malfunction
CH
High
temperature
protection
in
heating
mode
12
4
3
5
6
8
7
Tb2
temp.
V
alue
T
otal
capacity
requirements
The
revised
capacity
requirements
Cooling/heating
temp.
set
T3
temp.
V
alue
T4
temp.
V
alue
Tp
temp.
V
alue
Fan
speed
0-
,1~7-Fan
speed
hutdown
S
2
11
Tb1
temp.
V
alue
0
9
T
in
temp.
V
alue
1
Running
mode
0-Shutdown,1-The
pump
model,2-Cooling,
3-Heating,4-Forced
cooling.
10
T
out
temp.
V
alue
Checking
No.
Meanings
The
normal
display
13
17
16
14
15
18
19
20
T6
temp.
V
alue
Reserved
Outdoor
units
current
Power
supply
voltage
AD
value
EXV
opening
Error
1
Meanings
dF
Defrosting
d8
Remote
control
Frequency
Error
2
Error
3
Te
mp.
Sensor
code
T
in/T
out/Tb1
Tb2/T3/T4
B
=4100K
,
R
=10k
25/
50
25
Tp
B
=3950K
,
R
=5k
25/
50
90
Property
values
Checking
No.
U
V
W
U
V
W
2020904A0942
MAIN
BOARD
IPM
&
PFC
MODULE
Please
use
3-core
shielded
wire
to
connect
the
w
and
the
shielding
layer
must
be
grounded
.
ire
controller
BLACK
RED
BLUE
XT1
POWER
SUPPL
Y
Y/G
RED
BLACK
Wire
controller
Y/G
1
2
3
4
3
1
2
6
4
5
9
7
8
GREEN
GREEN
BROWN
BROWN
To
XT1
WHITE
GREEN
GREEN
BROWN
BROWN
3
4
56
V
U
W
123456
78
9
10
11
+12V
ON/OFF
PUMP2
NOTE
XT3
CODE
PA
R
T
NAME
Compressor
CRANK
CT1
XT1
AC
current
detector
4-W
A
Y
COMP
.
EEV
.
Electric
Expansive
V
alve
Outdoor
fan
motor
FA
N
H-PRO
L-PRO
T3
T4
Tp
Compressor
electric
heating
zone
High
pressure
switch
Low
pressure
switch
4-W
ay
valve
Condenser
temperature
sensor
Outdoor
ambient
temperature
sensor
Comp.
Discharge
temperature
sensor
XT2,XT3
14-W
ay
terminal
CP_HEA
T1
Plate
Heat
Exchanger
electric
heating
zone
FS_HEA
T
Tb1
Ti
n
Tout
Plate
heat
exchanger
anti-freezing
temperature
sensor
1
Inlet
water
temperature
sensor
of
heat
exchanger
Outlet
water
temperature
sensor
of
heat
exchanger
Flow
switch
electric
heating
zone
F.S.
Flow
switch/
Exhaust
valve
WIRING
DIAGRAM
(OUTDOOR
UNIT)
CAP1,CAP2
CAP
ACIT
OR
PTC1,PTC2
L
KM1
AC
CONT
ACT
OR
THERMAL
RESIST
OR
REACT
OR
R1,R2
RESIST
ANCE
ZR1
V
oltage
Dependent
Resistor
3-W
ay
terminal
Plate
heat
exchanger
anti-freezing
temperature
sensor
2
Tb2
CT1
N
U
V
W
P
TR
A2
A1
A3
L_OUT
N_OUT
L_IN
N_IN
RED
CT1
1
2
3
4
5
EX_HEA
T
CN32
CN31
CN34
CN33
S.V
.
BROWN
BROWN
BLUE
BLUE
BLUE
BLUE
CP_HEA
T1
FS_HEA
T
PUMP1
4-W
A
Y
CRANK
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
CN35
CN36
CN38
CN19
CN17
FAN-DOWN
FAN-UP
CN41
CN40
6
5
C5
N
CN12
CN8
CN9
T4
T3
Tp
H-PRO
L-PRO
CN14
Tout
Tb1
Ti
n
Tb2
Dif
ferential
Pressure
Switch
CN15
DISPLA
YBOARD
EEV
.
CN22
RED
WHITE
1
2
RED
RED
BLACK
BLACK
BLACK
RED
BLACK
YE
LLOW
YE
LLOW
BLUE
YE
LLOW
YE
LLOW
BLUE
BLUE
BLUE
BLUE
RED
BLACK
WHITE
BLACK
EX_HEA
T
Exhaust
valve
electric
heating
zone
d0
Oil
return
of
compressor
BLACK
RED
BLUE
BLACK
RED
BLUE
Display
CL
Malfunction
or
Protection
Display
Malfunction
or
Protection
Low
temperature
protection
in
heating
mode
A
B
C
D
The
wire
controller
is
optional.
C/H
10
11
+12V
P
Q
E
REMOTE
ALARM
Remote
cooling/heating
Remote
shutdown
8
YELLOW
7
8
YELLOW
Switch
setting-Model
selection
Reserved
Without
remote
cooling/heating
With
remote
cooling/heating
Reserved
