Outdoor Unit Error Display - Century B-VMH36SD-1 Service Manual

Service Manual - VMH 9/12/18/24 SU & VMH30/36S D Series

9.2 Outdoor Unit Error Display

For A-VMH09SU-1, A-VMH12SU-1, A-VMH18SU-1
bridge
R1 55
R1 42
fast recovery diode
(FRD)
IGBT
D8
E 2
D12
C10
D15
D10
R 135
E 301
C31
C 34
R158 R1 56
Q3
C85
IPM for compressor
I C34
E3 02 C 60 DZ302
+
connect to DC motor
W
E3 03 C 61 D Z3 03
+
D Z3 04
E3 04 C 62
0V AC standby V +
10~200V AC ' running U
After power on, LED3(Green color) and LED2(Red color) will be flash if the unit has some
problems.
No. Problems
Normal, Standby
1
2 Normal, Operation
3 IPM malfunction or IGBT over-strong current protection
4 Over voltage or too low voltage protection
5 EEPROM parameter error
6 Inverter compressor drive error
7 Inverter compressor drive error
8 Inverter compressor drive error
290-330VDC standby
210-300VDC running connect to the DR module
connect to reactance
DR
R1 41
BR1 C2 PTC1
C6
R1 54
R1 53
R150
R1 51
CN 12
R 152 REACTOR
CN25
C N13
RY1
R38
D5
E5
C41
IGBT1
R18 P
ZR4
D Z6
R18A
D9
IC4
N
R36
R 37 C 38
E 305
R316
R20
R 47 R67
R19 R88
R57
R316A
IPM1 C58
D Z3 01
C30
E3
C3 02
R1 24 C92
BLACK
C96 R1 23
W C95 R1 22
U
C 66 R14
C 314
R1 19
CN 29
CN30 C98
P
R125 R 118
R126 R 117
V
RED R 102
R86
C3 18
C 52
CN 28
E 8
U
R1 34
BLUE
CN27
1
CN9
24LC08
I C8
17122200000309
connect to PC communication
LED2 （ red ） &LED3 （ green ） : status light
combination LED2 and LED3 show errors
（ refer to the attechment Word ）
O（light）
connect to earth
fuse 250V 30A
[V1.8] 2015-01-16
CN22
C N6
C 5
L1
C3
D SA1
CN7
ZR2
F US E1
65T 250V30A
R11
Z R1
C1
ZR3 4-WAY RC3
C4
C 82
7805
R Y2
Rdi
Low-Fre E 409
IC404
Have NO
DR No YES
CN21
R1 27 C1 05
Ripm Temp-Pro
Have IN
YES
-
No NO AC
E4
+
R Y3 ~ ~
C40
R4 01
12V 5V
C 50
R Y4
D13
C4 04
E402
+
R Y5
C 405
C4 01 T401 RC2
E 405
1 C N38
10
C147
IC 14
D 401 C N39 1 RC4
9
24 LC08
HEAT
I C12
IC 11
3 R166
C 403
C7
C4 11 R1 64
D3
R 24
4 7
R 23
D1
R43 R 165
IC402
5 6
C 402 E28
R4 02
C46 R44
D 404 R415
C87 J3
R405 D4 02 R85 22
R 78
R2
11
R160 C 8
R 40
Q8
R 97 I C10
E 410
IC406 E 403 X1
R 92 IC1
R 45 R 46 R 13
P C8 17
J6 IC2
R 321 Q 2 R 322 1 P C8 51
D 14
34
R21 IC 17
D7
R 53 Q1
C19 E 17 R6 C9
E 14 R77 R3 C13
C4 06 R4
R76
C 18 E406
D2
R81 R 82 C514 E 6 C4 07 R30 R7
R50 R5 20 E10 R26 R87
17V 15V
C80 7815 I C4 05 R 419
R33
R5 22
D Z5 01 R 8
R5 21 C 409 E 408 R5 15
R 12 L ED3 R515A R1 01
R 100
I C4 07 E404
C25 R 71
R 79 R 518 R5 16 311 TEST
C 17 R 48 L ED2 R 519 R5 17
C47 CN24
C 506 R508
E 407
P C8 17
E5 03
IC5
R73 C 36
C33 R25
O SC1 C39 R22 E24
R 29
C 53
D Z2 E 504 R27
R178 R 177 E 27
C 35
PC817
IC3
I C31 C90 C5 02 R31
R 99 C 504
NTC4
R 121
DZ502 Exhaust
24LC512
I C7 R95
E5 02
IC 21 P C817 R96
C73 TP
CN19
R1 06
KFR-72W/BP2-( 311+0515+6061HD+PSS30S92F6-AG+6822+HEAT).D.13.WP2.1
test port
LED: status light （ yellow ）
reserve
slow flicker ： standby （ 0.5Hz ）
internal drive motor quick flicker ： error （ 2Hz ）
continuous light: running
6 5 4 3 1
exhaust temp. sensor
X（off） ☆（2.5Hz flash）
23
25
C N6 -1 CN3
N-IN
power supply 208-230V AC connect to the terminal
L-IN
CN8
S
CN2
connect to 4-way val ve
RC1
when 4-way is on, output 208-230V AC
CN5 /CN4 connect to chassis heater
when heater is on, output 208-230V AC
1 low speed
AC FAN mototr
2 hign speed
3 ground
EEPROM Programmer Port
connect to compressor heater
when heater is on, output 208-230V AC
Connect to PC
PMV
communication
R1
CN18
+12VDC
connect to electric expansion valve
+12VDC
C48 CN23
E1
test port
+12V DC pulse wave between( +4)-GND
E11 +12V DC pulse wave between( +3)-GND
reserve +12V DC pulse wave between( +2)-GND
+12V DC pulse wave between( +1)-GND
E 22 Hui Qi CN20
Suction
E 23
external drive motor
U
connect to DC motor
V
0V AC standby
W 10~200V AC ' running
CN414
C N1
T4 IPM for DC FAN
T3
CN17
pipe temp.sensor& room temp. sensor
TP T4 T3
7 6 5 4 3 2 1
LED3 LED2
(Green) (Red)
O X
X O
X
☆
O O
O
☆
X
☆
O
☆
☆ ☆
IU
display
P0
P1
E5
P4
P4
P4