Wiring Diagram - Mitsubishi Electric SEZ-KD12NA4 Technical & Service Manual

4

WIRING DIAGRAM

SEZ-KD09NA4.TH
SEZ-KD12NA4.TH
SEZ-KD15NA4.TH
SEZ-KD18NA4.TH
SW1
LED3
(WHITE)
CN90
1 9
9
1 2
TB15
TRANSMISSION
WIRES DC 12V
1 9
TB6
1 2
CN1
LED1
BZ1
RU
R.B.
SW1 SW2
W.B.
SYMBOL EXPLANATION
SYMBOL NAME
I.B. INDOOR CONTROLLER BOARD
FUSE FUSE AC250V 6.3A
X1 AUX. RELAY
CN2L CONNECTOR (LOSSNAY)
CN24 CONNECTOR (BACK-UP HEATING)
CN30 CONNECTOR (LLC)
CN32 CONNECTOR (REMOTE SWITCH)
CN41 CONNECTOR (HA TERMINAL-A)
CN51 CONNECTOR (CENTRALLY CONTROL)
CN90 CONNECTOR (WIRELESS)
CN105 CONNECTOR (RADIO FREQUENCY INTERFACE)
LED1 POWER SUPPLY (I.B.)
LED2 POWER SUPPLY (I.B.)
LED3 TRANSMISSION (INDOOR-OUTDOOR)
Note1. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
2. Indoor and outdoor connecting wires are made with polarities,make wiring matchingterminal numbers (S1,S2,S3).
3. Symbols used in wiring diagram above are as follows.
:CONNECTOR
:TERMINAL
(HEAVY DOTTED LINE):FIELD WIRING
(THIN DOTTED LINE):OPTIONAL PARTS
4. Use copper supply wire.
2
SW2
CN24 CN32
(YELLOW)
CN51 CN41
(RED) 1 2
CN2L
CN22 (BLUE)
ON OFF
SWE
LED2
(RED) (WHITE) (WHITE) (RED)
CN105 CN4F CN44 CN20
1 4 1 4
1 2
1 5
5
RFI
FS TH2 TH5 TH1
SYMBOL
I.B. INDOOR CONTROLLER BOARD
SW1 SWITCH (FOR MODE SELECTION)
SW2 SWITCH (FOR CAPACITY CODE)
SW6 SWITCH (FOR MODEL SELECTION)
SWE CONNECTOR (EMERGENCY OPERATION)
TH1 INTAKE AIR TEMP. THERMISTOR
TH2 PIPE TEMP. THERMISTOR/LIQUID
TH5 COND./EVA. TEMP. THERMISTOR
FS FLOAT SWITCH
TERMINAL BLOCK
TB4
(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK
TB15
(REMOTE CONTROLLER TRANSMISSION LINE)
RFI RADIO FREQUENCY INTERFACE FOR RF THERMOSTAT
INSIDE SECTION OF CONTROL BOX
I. B.
CN01
(BLACK) 1 3 5
1 3
SW6
CN3C (BLUE)
1 2
ON
DC294-340V
OFF
FUSE
RECTIFY CIRCUIT
+
-
LED1
(WHITE) X1
CN30(GREEN) CNMF
CNP
7 4 1
3 1
(BLUE)
M
1~
MS
3~
DRAINPUMP
FAN MOTOR
NAME SYMBOL
OPTIONAL PARTS
W.B.
RU
BZ1
LED1
SW1
SW2
R.B.
TB6
14
TB4
S1
S2
TO OUTDOOR
UNIT
S3
CONTROL BOX I. B.
TB15 TB4
PARTS LOCATION
NAME
IR WIRELESS REMOTE CONTROLLER BOARD
RECEIVING UNIT
BUZZER
LED (RUN INDICATOR)
SWITCH (HEATING ON/OFF)
SWITCH (COOLING ON/OFF)
REMOTE CONTROLLER BOARD
TERMINAL BLOCK
(REMOTE CONTROLLER TRANSMISSION LINE)