Mitsubishi PLA-A12BA Technical Data Book page 34

PEA-A12AA PEA-A18AA
TB15
1
TO MA REMOTE
2
CONTROLLER
SYMBOL EXPLANATION
S Y M B O L
I. B. INDOOR CONTROLLER BOARD
FUSE FUSE AC250V 6.3A
ZNR01,02 VARISTOR
DSA ARRESTER
X1 AUX. RELAY
CN2L CONNECTOR (LOSSNAY)
CN24 CONNECTOR (BACK-UP HEATING)
CN32 CONNECTOR (REMOTE SWITCH)
CN41 CONNECTOR (HA TERMINAL-A)
CN51 CONNECTOR (CENTRALLY CONTROL)
CN90 CONNECTOR (WIRELESS)
LED1 POWER SUPPLY(I.B.)
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 have poIarities, make sure to match terminal
numbers (S1, S2, S3)for correct wirings.
3.Symbols used in wiring diagram above are,
4.Use copper supply wire.
34
SW1 SW2
CN24 CN32
(Yellow)
CN51 CN41
CN2L
ON OFF
SWE
LED2
LED3
CN90
CN4F CN44
1 2 3 4 1 2 3
° °
t t
FS TH2 TH5
NAME S Y M B O L
LED2
LED3
SW1
SW2
SWE
TH1
TH2
TH5
FS
TB4
TB15
:Connector, :Terminal.
INSIDE SECTION OF CONTROL BOX
I. B.
CN01
1 3 (Black)
CN3C (Blue)
DSA
ZNR02
1 2
CN22 (Blue)
FUSE
DC310~340V
ZNR01
Rectify circuit
U
LED1 LED1
CN20 (Red) CNMF
4 1 2 7 6 5 4 1
°
t
MS
3~
Drainpump
TH1
Fan motor
N A M E
POWER SUPPLY(I.B.)
TRANSMISSION(INDOOR-OUTDOOR)
SWITCH (FOR MODE SELECTION)
SWITCH (FOR CAPACITY CODE)
CONNECTOR (EMERGENCY OPERATION)
INTAKE AIR TEMP. THERMISTOR
PIPE TEMP. THERMISTOR/LIQUID
COND./EVA. TEMP. THERMISTOR
FLOAT SWITCH
TERMINAL BLOCK
(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK
(REMOTE CONTROLLER TRANSMISSION LINE)
1 3 5
U
X1
CNP
3 1
(Blue)
TB4
S1
S2
S3
M
1~
CONTROL BOX
T B 5 1
PARTS LOCATION
TO
OUTDOOR
UNIT
I. B.
T B 4