13
MUENR-12/14/16-H6T
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
Tout
temperature
sensor
malfunction
F7
Tb1
temperature
sensor
malfunction
F8
Tb2
temperature
sensor
malfunction
Pb
Outdoor
units
anti-freezing
protection
CP
C8
Flow
switch
malfunction
CH
High
temperature
protection
in
heating
mode
Display
Malfunction
or
Protection
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
14-W
ay
terminal
2-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
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
Tout
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/T3/T4
B
=4100K
,
R
=10k
25/
50
25
Tp
B
=3950K
,
R
=5k
25/
50
90
Property
values
Checking
No.
F.S.
Flow
switch
U
V
W
U
V
W
202090490066
CAP1
R2
EX_HEA
T
BLUE
Y/G
CN47
CN31
CN33
CN32
S.V
.
CN17
IC201
CN205
CN19
CN50C
N
50
C5
N
CN6
CN1
CN9
EEV
.
CN22
CN201
T4
T3
Tp
H-PRO
L-PRO
A2
A1
ORANGE
5
4
1
2
3
D1
R1
CAP2
FAN-DOWN
FAN-UP
BLUE
BROWN
WIRING
DIAGRAM
(OUTDOOR
UNIT)
CN36
L1
GND_2
CN36
L1
CN37
L2
CN38
L3
CN30
CN31
CN32
L1
’
L2
’
L3
’
CN19
CN18
GND_1
CN39
N
POWER
&
FIL
TER
BOARD
MAIN
BOARD
U
V
W
CN2
CN
1
PN
CN5
IPM
MODULE
BLUE
WHITE(BROWN)
RED
BROWN
RED
(BROWN)
RED
Y/G
BLACK
WHITE
BLACK
ZR1
RED
RED
RED
BLACK
BLACK
RED
BLACK
BLUE
BROWN
BLUE
BLUE
BLUE
BLACK
RED
BLACK
RED
BLUE
ORANGE
RED
L
BLACK
RED
RED
RED
RED
BLUE
IC
201
CN250
XT1
POWER
SUPPL
Y
Y/G
Y/G
BLACK
RED
BLUE(BROWN)
BLUE
RED
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
PTC1
PTC2
RED
BLUE
BLACK
CN14
Tout
Tb1
Ti
n
Tb2
Dif
ferential
Pressure
Switch
BLUE
CP_HEA
T1
FS_HEA
T
PUMP1
4-W
A
Y
CRANK
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
12
3
4
CN34
CN35
CN49
CN38
CN37
CN40
CN20
DISPLA
YBOARD
GREEN
GREEN
BROWN
BROWN
XT1
WHITE
GREEN
GREEN
BROWN
BROWN
1
2
3
4
XT2
V
U
W
NOTE
XT3
XT3
3-W
ay
terminal
Plate
heat
exchanger
anti-freezing
temperature
sensor
2
Tb2
CN30
EX_HEA
T
Exhaust
valve
electric
heating
zone
Anti-idling
protection
of
water
pump
d0
Oil
return
of
compressor
Please
use
3-core
shielded
wire
to
connect
w
,
and
the
shielding
layer
must
be
grounded
.
ire
controller
RED
BLACK
CL
Low
temperature
protection
in
heating
mode
Display
Malfunction
or
Protection
A
B
C
D
The
wire
controller
is
optional.
3
1
2
6
4
5
9
7
8
10
11
Wire
controller
123456
78
9
10
11
+12V
ON/OFF
PUMP2
C/H
+12V
P
Q
E
REMOTE
ALARM
Remote
cooling/heating
Remote
shutdown
"PUMP2"
and
wiring
terminal
ports
provide
only
the
switch
signal.
The
load
should
be
controlled
through
the
A
C
contactor
.
""REMOTE
ALARM
YELLOW
Switch
setting-Model
selection
Reserved
Without
remote
cooling/heating
With
remote
cooling/heating
Reserved
