Mitsubishi Electric PQRY-P200YEM-A Service Handbook page 26

• PQHY
Inverter
Controller Box
Terminal
Block
TB1A
L1 L1
Power source
~
L2 L2
3N
380/400/415V
50/60Hz
L3 L3
N N
Green/
PE Yellow
PE
BOX BODY
TB3
Connect to M1
Indoor and
remote M2
controller
M1
M2
S
TB7
AC4
(to CNAC4)
AC1
CH1
Crank case heater
(Compressor)
SV1
21S4
SV2
SV3
SV4
SV5
SV6
63H
High pressure
switch
26W
Freeze protect
switch
No fuse breaker
PQHY-P200YEM-A 30A
PQHY-P250YEM-A 50A
<Operation of self-diagnosis switch(SW1)and LED display>
Display
Relay output
display
(Lighting)
ON:1
OFF:0
Check display1
1 2 3 4 5 6 7 8 910
(Blinking)
(at factory shipment)
ON:1
OFF:0
1 2 3 4 5 6 7 8 910
Please refer to the service handbook about other switch settings of LED display.
<Controller box internal layout>
(Upside)
INV board
T01
RELAY
board
MAIN board
TB3 TB7
TB8 TB1A
F5 SNB board
600VAC
8A F
L1
F6
600VAC
8A F
L2
L3 EARTH
BOX BODY
Noise
Terminal
Filter
NF Block
TB1B
Red L1 L1 Red L1 Red
White L2 L2 White L2 White
L3 L3 L3
Black Black Black
Blue N N Blue N Blue
BOX BODY
CNAC3
(4P)
1 2 3 1 2 1 2 3
4 CNS2 CNS1
(3P) (2P)
3
2
1
3
2 CN32
(3P) X01
1
3
2 CN33
X02
1 (3P)
6
5
4 CN34
X04
(6P)
3
2
X05
1
Control circuit board
6
5
(MAIN board)
4 CN36
X06
(6P)
3
2
X07
1
6
5
4 CN37
X08
(6P)
3
2
X09
1
X10
CN38
(3P)
1
2
detection
3
circuit
5
4 Refer to the service handbook
detection
3
circuit about the switch operations.
2
1
CNRT1
(5P)
CN13 CN12 CN09 CN08 CN06 CN03 CN02 CN01 CNH
(4P) (2P) (2P) (2P) (2P) (3P) (8P) (2P) (3P)
1 2 3 4 1 2 1 2 1 2 1 2 1 2 3 1 2 3 4 5 6 7 8 1 2 1 2
3 2 1
TH7 TH8 THINV TH10 TH5 TH9 TH6 TH2 TH1 63HS
Display at LED lighting (blinking) Remarks SW1 operation
FLAG1 FLAG2 FLAG3 FLAG4 FLAG5 FLAG6
During
Crankcace
21S4 SV1 SV2 SV3
Compres-
heater
sor run
Display the address and error code by turns
SV5 SV6 SV71 SV72 SV73
<Unit internal layout>
(Underside)
L2
MF1
DCL
R1 R6
R7
F3
R5 TB1B
ACCT
THHS R3
C3
IPM
C2
G/A board
NF
R2
ZNR4
C1
DS
52C
SNB
F6 board
F5
TB3
TB7
TB8 TB1A
Diode
stack
R1 R5
DS
ZNR4
~
+
+
C2 R2
C1
~
52C +
C3 R3
DCL
~
-
F3
250VAC
1A F
CNTR1
BOX BODY
T01
CN20
1 1
(3P)
2 2
1 2 3 5 4
3 3
CNRS3
CNTR
4 4 CNRS2
F1 (7P)
(3P)
5 5 (7P)
250VAC 6 6
2A F 7 7
CNVCC4 CNVCC4
1 1
(2P)
2 2 (2P)
1 1
2 2
CNVCC3 CNVCC2
3 3
(6P) 4 4 (6P)
5 5
6 6
X10
1 1
2
X01
2
3
52C
3
CNX10
CN52C
(3P)
(3P)
3
CN3D
DEMAND
2
(3P)
1
1
12V
2
3
4
4:Compressor ON/OFF
5
5:SW3-3 OFF:water freeze signal
CN51
ON:trouble signal
(5P)
(to CNAC3)
AC4 AC1
CNAC4
(4P) 3 2 1
4
CNPW
(4P)
4 4
3 3
CN63PW
2 2
(4P)
1 1
detection
6 circuit
6
5
5
CNOUT1 4
4
CNOUT2
(6P) 3
CNL CNLV1 CNLV2 CNLV3 3 (6P)
2
(3P) (5P) (5P) (5P)
2
1
3 1 2 3 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
1
SLEV LEV2 LEV1
3 2 1
63LS
FLAG7 FLAG8
<LED display>
FLAG8 always
Always
SV4
lighting
lights at
LD1
microcomputer
power ON
FLAG1
FLAG2
FLAG3
FLAG4
(Upside)
TH6
26W
TH8
21S4
TH7
TH5
LEV1
SV72
(Underside)
SV2
SV1
OIL
SEPARATOR
SV73
63H
SV3
MC
SV4
TH1
SV5
SV6
TH10
–25–
Motor
MC1
(Compressor)
U W
V
Red White Black
FB1
ACCT
-W
ACCT
-U
IPM
U V W
P
Gate amp board
(G/A board)
N
CNE CNDC1 CNDR1 CN15V1
(2P) (4P) (9P) (14P)
1 2 1 2 3 4 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10
FB2
BOX BODY
CNAC2
3 2 1 1 2 3 4 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10 11
(5P)
CNVDC CNDR2 CN15V2
(4P) (9P) (14P)
F01
250VAC
2A F
Power circuit board
(INV board)
CNACCT
(4P)
CNTH CNR CNL2 CN30V
X02
(2P) (3P) (2P) (2P)
1 2 3 1 2 1 2 3 1 2 1 2
CNFAN
(3P)
MF1
L2 R6
THHS R7
BOX BODY
CN81
(9P)
X21
9
8
X22
7
6
X23
5
SV73 SV72 SV71
4
3
2
1
CN83
(7P) TB8
63PW
7 4
Pump interlock
5 3
3 2
1 1 Unit ON/OFF
X25
RELAY board
<Symbol explanation>
Symbol
DCL DC reactor
(Power factor improvement)
ACCT-U,W
Current Sensor
ZNR4 Varistor
Magnetic contactor
52C
(Inverter main circuit)
MF1
FLAG8 Fan motor (Radiator panel)
FLAG7
21S4
4-way valve
FLAG6
SV1,SV2 Solenoid valve (Discharge-suction bypass)
FLAG5
~
SV3 6 Solenoid valve
(Heat exchanger capacity control)
SV71 ~ 73 Solenoid valve
(Heat exchanger capacity control)
LEV1 Electronic expansion valve
(Sub-cool coil bypass)
LEV2 Electronic expansion valve
(Heat exchanger for inverter)
SLEV Electronic expansion valve(Oil return)
63HS High pressure sensor
63LS
Low pressure sensor
L2
Choke coil(Transmission)
INVERTER
IPM Intelligent power module
CONTROLLER
TH1 Thermistor
BOX
THINV
TH2
TH5
TH2 TH6
SV71
TH7
TH8
TH9
TH10
ACCUMULATOR
THINV
THHS
~
63HS X1 10
TH9
Aux. relay
X21 ~ 25
SLEV
~
FB1 2
Ferrite core
63LS
LEV2
Earth terminal
11 12 13 14
12 13 14
1
2
3
4
N a m e
Discharge pipe temp. detect
Saturation evapo. temp. detect
Pipe temp. detect
OA temp. detect
liquid outlet temp. detect
at Sub-cool coil
bypass outlet temp. detect
at Sub-cool coil
High pressure liquid temp.
Compressor shell temp.
Outlet temp. detect of
heat exchanger for inverter
Radiator panel temp. detect