Mitsubishi Electronics P168 Air Conditioner User Manual


 
[ V Electrical Wiring Diagram ]
- 94 -
HWE0803A GB
(2) PURY-P96, P120THMU-A
G
SV1a
G
Ground
G
Heat exchanger low pressure
bypass
Explanation
Symbol
LED1:Normal operation
CN04
red
LED2:CPU in operation
CN3D
2
CN40
ON
LED3:Lit when powered
2
1
3
2
1
3
2
1
CN202
red
1
2
1
63HS1
CN211
TH4
3
1
1
2
2
3
4
1
2
1
TH5
CN990
CN212
CN213
red
Z25
Z24
CNTYP4
green
13
red
CNIT
4
CN03
black
yellow
CNS2
*3
3
2
OFF
1
2
red
CN3S
51232132
yellow
CN3K
133
F01
AC250V
3.15A T
21 1
blue
CN3N
2
CN102
2
CN18V
blue
LED3:CPU in
operation
F01
AC250V
15A T
LED3:Charge
21
C630
W
IPM
72C
CN03
black
~~~
C41
black
DSA1
IPM
FAN Board
CY2
Z4
U
CY3
CY1
CX6
CX4
U
Z2
Z3
TB23
U
CX1
-
1
F3
AC250V
6.3A T
CNDC2
1
*5
INV Board
SC-P1
CN02
Z5
Noise
Filter
TB42
3
CNCT
31
R2R1
DCL
72C
red
+
Diode Stack
U
*4
U
CX3
ACCT3
CNTYP
1
6
3
CN505
black
LED1
Power
failure
detection
circuit
CNDC
pink
X72
5
1
CNT02
black
CNIPM
W
F02
AC250V
3.15A T
ACCT1
V
C008
CNDC1
N
P
C007
U
white
1
1
TB3
red
V
IPM power
supply
circuit
CN2
CNCT3
black
LED1:Normal
operation
CN4
ON
Power supply
3~
60Hz
208/230V
11
Function
setting
CNDC3
pink
2
CNFG
blue
3
SWU2
Central control
transmission
cable
4
4
25
Indoor/Outdoor
transmission
cable
10's digit
1
CNIT
red
S
TP2
CNS2
yellow
12
TP1
2
TB7
3
F01
AC250V
3.15A T
45
M-NET power
supply
circuit
12
1
CN102
black
black
M-NET Board
4
3
2
3
4
CNINV
2
1
CNTYP5
green
2
4
CN4
3
2
3
Error detection output
1
1
CN201
63LS
3
1
CN4
LED2:Error
TH6
CN41
CN21
blue
THHS
Z26
THBOX
4
black
3121
SWU1
2
1
CNTH
green
CN5V
yellow
3
7
5
2
1
white
U
1
red
1's digit
3
LED4:CPU in
operation
CX2
3
Compressor ON/OFF output
SW5
M
3~
U
Control Board
23
3
41
CNAC
red
1
7
5
2
63H1
CN801
yellow
*3
2
LED1
Display
setting
3
Function setting
CN51
12V
10
1
TH7
P
CN2
5
TH3
Unit address setting
1
CN332
blue
211131
12
4
3
2
4
2
1
R630
2
1
CNVDC
2
Power selecting
connector
Fan motor
(Heat exchanger)
1
3
1
TB31
Current sensor(DC)
1
6
5
4
3
R01
2
2
LED2:Error
1
CNCT2
blue
4
OFF
1
SW1
Motor
(Compressor)
C1
DCCT1
ACCT2
FT-N
Z1
TB21 TB22
L
F2
AC250V
6.3A T
1
F1
AC250V
6.3A T
5
blackwhitered
3
CN01
L3
L3
L2
L2
L1
TB1
W
CNAC2
black
DCCT1
*1.Single-dotted lines indicate wiring
not supplied with the unit.
*2.Dot-dash lines indicate the control
box boundaries.
*3.Refer to the Data book for connecting
input/output signal connectors.
*4.Daisy-chain terminals (TB3) on the
outdoor units in the same refrigerant
system together.
*5.Faston terminals have a locking
function.Make sure the terminals
are securely locked in place after
insertion.Press the tab on the
terminals to removed them.
L1
SV5b
<Symbol explanation>
DCL
SV1a
SV4a,b,c,d
ACCT1,2,3
CH11
72C
63LS
63HS1
63H1
Symbol
21S4a
SV2
SV5c
THBOX
Z24,25,26
THHS
TH7
TH6
TH5
TH4
TH3
TB7
TB3
TB1
SV9
DC reactor
Solenoid
valve
Crankcase heater(for heating the compressor)
Current sensor(AC)
Magnetic relay(inverter main circuit)
Low pressure
SW1
OFF
10
ON OFF
CNT01
Discharge pressure
CX5
ON
10
1
SW2
OFF
10
ON
1
SW3
OFF ON
10
1
SW4
OFF ON
High pressure protection for the
outdoor unit
Pressure
switch
Pressure
sensor
4
Explanation
1
1
4-way valve(Cooling/Heating switching)
For opening/closing the bypass
circuit under the O/S
Discharge suction bypass
Heat exchanger capacity control
LED1:Power supply to
Indoor/Outdoor
transmission line
For opening/closing the bypass
circuit
4
Control box internal temperature
Liquid pipe temperature
Thermistor
Discharge pipe temperature
ACC inlet pipe temperature
OA temperature
IGBT temperature
Function setting connector
Power supply
Indoor/Outdoor transmission
cable
Central control transmission
cable
Terminal
block
Heat exchanger inlet pipe
temperature
For opening/closing the bypass
circuit
3
X11
SV4c
SV4d
2
1
1
V
red
MS
3~
CN22
red
X04
CN502
X02
1
2
CN503
blue
X03
1
3
CH11
1
3
CN504
green
21S4a
CN506
6
3
X05
SV5b
1
6
SV4a
6
3
5
1
CN507
red
X07
SV4b
5
1
X12
CN509
blue
SV2
SV9
6
3
5
1
CN508
black
X09
X08
X10
SV5c
1
2
4
6
1
X13
3
6
CN510
yellow
M1 M2 M1M2
CPU power
supply circuit