Mitsubishi Heavy Industries FDT40VF Technical Manual page 362

FDC100VSX,125VSX,140VSX
Outdoor unit check points
●
Check items with the *mark when the power is ON.
*
Noise filter check:
Power supply check:
There should be continuity.
Measure the power supply L1,L2,L3
There should be no shorts between phases.
(It is normal if it is AC380-415V)
TB
Red
L1 L1i
F 250V 8A
PWB3
White
L2 L2i
NOISE FILTER PWB
Blue
L3 L3i
Black
N
Ni
T12
CN1 CN2-1
1
2
3
CNW2
RAM
CNE
CNH
63H1
Resistance check:
Resistance is measured
(15Ω)
1 2
L1o
52C
L2o
3 4
L3o
CT1
No
F1
5 6
F 250V 4A
CNW CNIP CNB CNTH CNM
PWB1
CONTROL PWB
F1 (250V, 2A)
LED1 LED2
(Green) (Red)
F2 (250V, 4A)
CNR CNS CNF
CNEEV1
20S DH
CH
M
OPTION
SM1
LED2(Red) check:
1~5 time flash : Refer to page 334 or 335
Capacitor check:
DC Reactor contiuity Check for anomaly in appearance
check:55mΩ or less such as damage,swwll,etc.
R1 R2
L1
R3 C1
R5
AC1 ＋4
Va
DM
U
AC2
R4
C2
AC3 －6
LPT
CNPS CNA2
CNI1
CNI3
18V
15V
CNA1
M
CNFAN1
FMO1
M
CNFAN2
FMO2
CNEEV2
LED1 (Yellow) Check
1～6 fimes flash
M
(Refer to page 334 or 335)
SM2
When the outdoor
unit fan motor is
anomalous:
(Refer to page 411 or 459)
PWB2
INVERTER PWB
TB5
TB7
Red
TB8
DIP-IPM White
V
TB6
TB9
Black
CNW2
CNR
RAM
CNE
CNI2
LED1
(Yellow)
CNW1
CNO1
U
CM
W