38
1
3
ORN
BRN
2 1
2 1
3
2
1
5
4
3
2
1
4
3
2
1
2
1
5 4 3
6
2 1
7
2 1
3
4
6 5
7
CN3
BLK
10
CN3(WHT)
CN1
3
4
5
6
3
4
5
6
1
2
3
6
1
6 3 2
1
2
6 3
7
2
1 3
2
3
1
1
3
1
2
1
3
2
1
1 2 3 4 5 6
RED
RED
GRN/YLW
BRN
8
7
YL
W
YL
W
BLK
3
6 2
BRN
X4
THHS
TH1
TH2
TH5
TH6
63HS
W
V
U
MC
3
1
1
3
1
3
1
3
1
3
3 1
WHT
RED
C7
RED
S
M1
M2
S
M2
M1
(WHT)
(WHT)
(YLW)
(BLK)
26C
(YLW)
(WHT)
(WHT)
(RED)
(YLW)
(RED)
(YLW)
(WHT)
(YLW)
<IPM>
AC.CT
LD1
SWU1
(1st digit)
SWU2
(2nd digit)
(3rd digit)
SWU3
<GATE AMP BOARD>
<POWER SUPPLY BOARD>
CND
MF2
MF1
SV1
21S4
52C
CNA
CH
CN6
CN5
CN5
CN6
CN4
CN2
CN1
CN2
CN4
10
7
1
7
3
6
1 2
4
3
2
1
1 2 3 4 5 6 7 8
10
9
8
7
6
5
4
3
2
1
1 2
8
7
6
5
4
3
5
4
6
YL
W
RED
BLK
FUSE1
(2A)
SW3
ON
OFF
SW5
OFF
ON
SW4
ON
OFF
SW1
THHS
(BLK)
(WHT)
(WHT)
(WHT)
(WHT)
(WHT)
(WHT)
CNS1
(RED)
CNS2
(YLW)
(YLW)
AC.CT 2
1
CN40
CN51
CN3D
4
3
2
1
BLU
F.C
2
1
1
C5
C6
GRN/YLW
BLK
RED
RED
BLU
BLK
RED C4
3
6
1
2
RED
-
+
3
2
WHT
BLK
2
FOR CENTRALIZED
CONTROL
DC 30V (Non-polar)
BLU
WHT
YL
W
YL
W
WHT
RED
RED
(WHT)
(GRN)
(GRN)
(WHT)
YL
W
BLU
WHT
RED
RED
BLU
BLK
BLK
RED
RED
RED
GRN
BLK
RED
ORN
BRN
FUSE2
(6A)
TO INDOOR UNIT
CONNECTING WIRES
DC 30V (Non-polar)
POWER SUPPLY
~ (1 PHASE)
220-240V
50Hz
W
V
X4
U
2
6
AR
X2
X1
X3
SW2
CH
OFF
ON
TB7
TB3
L
TB1
N
L
N
21S4
52C
SV1
SLEV
TH2
TH6
63HS
TH5
SLEV
26C
N(-)
P(+)
DCL
CB
3
C3
D
52C
RB
2
DB1 DB2
3
1
1
2
NF
1
4
3
FUSE(60A)
TH1
<MULTI CONTROLLER BOARD>
CN41
MF2
MF1
WHT
BLU
3
X4
BRN
RS
BLK
ZNR
WHT
RED
RED
ORN
ORN
C1
C2
RED
5
0 1
2
3
45
6
7
8
9
0 1
2
3
45
6
7
8
9
9
8
7
6
5
4
3
2
1
0
2 3
1
6
5
9
1 2
9
6
5
2
1
3
2
1
3
2
1
CH
NO FUSE BREAKER
30A
PUMY-125VM
SYMBOL
NAME
NAME
SYMBOL
NAME
SYMBOL
AC,CT
AR
CB
CH
CNA
CND
CNS1
CNS2
CN1
CN2
CN3
CN4
CN5
CN6
CN40
CN41
CN51
CN3D
C1,2
C3,4
C5,6
C7
D
DB1,DB2
DCL
F.C
FUSE1
FUSE2
FUSE
IPM
LD1
MC
MF1,2
NF
RB
RS
SLEV
SV1
SW1
SW2
SW3
SW4
SW5
SWU1
SWU2
SWU3
TB1
CURRENT DETECTION
SURGE ABSORBER
SMOOTHING CAPACITOR
CRANKCASE HEATER
CONNECTOR <POWER SUPPLY>
CONNECTOR <DC POWER SUPPLY>
CONNECTOR <MULTI SYSTEM>
CONNECTOR <CENTRALIZED CONTROL>
CONNECTOR <CONTROLLER DRIVE CONTROL>
CONNECTOR <POWER SYNC SIGNAL , PROTECTION>
CONNECTOR <POWER SUPPLY 30V,12V,5V>
CONNECTOR <INVERTER SIGNAL 5V>
CONNECTOR <IPM POWER SUPPLY>
CONNECTOR <IPM POWER SUPPLY , TROUBLE OUTPUT>
CONNECTOR <CENTRALIZED CONTROL POWER SUPPLY>
CONNECTOR <FOR STORING JUMPER CONNECTOR>
CONNECTOR <COMPRESSOR DRIVE SIGNAL OUTPUT>
CONNECTOR <DEMAND SIGNAL , SILENT MODE INPUT>
FAN MOTOR CAPACITOR
CAPACITOR <POWER FACTOR IMPROVEMENT>
CAPACITOR
CAPACITOR <FILTER>
DIODE <POWER FACTOR IMPROVEMENT>
DIODE STACK
REACTOR
FAN CONTROL
FUSE(2A)
FUSE(6A)
FUSE(60A)
INTELLIGENT POWER MODULE
DIGITAL INDICATION LED
<OPERATION INSPECTION INDICATION>
COMPRESSOR
FAN MOTOR (INNER THERMOSTAT)
NOISE FILTER
RESISTOR <DISCHARGE>
RESISTOR <RUSH CURRENT PROTECT>
EXPANSION VALVE
SOLENOID COIL <HOT GAS BYPASS>
SWITCH <DISPLAY SELECTION SELFDIAGNOSIS>
SWITCH <FUNCTION SELECTION>
SWITCH <TEST RUN>
SWITCH <MODEL SELECTION>
SWITCH <FUNCTION SELECTION>
SWITCH <UNIT ADDRESS SELECTION,1ST DIGIT>
SWITCH <UNIT ADDRESS SELECTION, 2ND DIGIT>
SWITCH <UNIT ADDRESS SELECTION, 3RD DIGIT>
TERMINAL BLOCK <POWER SUPPLY>
TB3
TB7
THHS
TH1
TH2
TH5
TH6
X1
X2
X3
X4
ZNR
21S4
26C
52C
63HS
TERMINAL BLOCK <TRANSMISSION>
TERMINAL BLOCK
<TRANSMISSION> (CENTRALIZED CONTROL)
THERMISTOR
<IPM RADIATOR PANEL TEMPERATURE DETECTION>
THERMISTOR <DISCHARGE TEMPERATURE DETECTION>
THERMISTOR
<LOW PRESSURE SATURATED TEMPERATURE DETECTION>
THERMISTOR
<PIPE TEMPERATURE DETECTION . JUDGING DEFROST>
THERMISTOR
<OUTDOOR TEMPERATURE DETECTION>
RELAY
< MAGNETIC CONTACTOR / CRANKCASE HEATER>
RELAY<4-WAY VALVE>
RELAY<SOLENOID VALVE>
RELAY
VARISTOR
4-WAY COIL
THERMAL SWITCH <COMPRESSOR>
MAGNETIC CONTACTOR
<INVERTER MAIN CIRCUIT>
HIGH PRESSURE SENSOR
<DISCHARGE PRESSURE DETECTION>
-
4.Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch(SW1) and LD1(LED indication)
found on the multi-controller of the outdoor unit.
LED indication:Set all contacts of SW1 to OFF.
1.Refer to the wiring diagrams of the indoor units for details on wiring of each indoor unit.
2.The transmission line is two-wire type and has no polarity.
3.Mark shows the terminal board, mark the connector. Symbols in parentheses() show the colors of connectors.
•During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
Bit
Indication
Compressor operated
2
52C
3
4
5
6
7
8
1
21S4
SV1
-
-
Always lit
(Example)
When the compressor and SV1 are
turned during heating operation.
1 2 4
3
6
5
8
7
OC183E--2.qxp 10.5.6 0:46 PM Page 38
