Mitsubishi SKM40ZA Manuel d'installation Page 64
- Page / 122
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
- 61 -
(13) Check method for outdoor circuit board (inverter)
Make confirmation after checking that the indoor circuit board is normal.
(I) Use a multimeter to conduct inspection.
a) Unplug the plug.
b) Remove the output cables U, V and W (to the compressor) of the power transistor.
(Note: The inspection of inverter can be conducted only after the capacitor is discharged and
after making sure the residual voltage is below 10V.)
c) Insert the plug and press and hold the back-up switch for over 5 sec. till the appliance
commences operation.
d) Measure the voltages between U and V, V and W, and W and U of the power transistor with the
analogue instrument within the range of AC1000V.
If the voltages between U and V, V and W, and W and U as shown in the following figure can be
detected regularly, it indicates the outdoor circuit board is normal.
Compressor start test-running voltage
Press and hold the switch on the main frame for over 5 sec. [ON]
The indoor RUN lamp flashes 2 times and the TIMER lamp flashes 2 times. (Error code 73-76)
Note (1) After the one-time output one minute after this power transistor outputs voltage, the error of
the indoor unit is detected.
(II) Judgment through defective inverter detector (MRE part number: SA01927)
1) Detector setting procedure
a. Switch off the power supply (turn off the switch).
b. Remove the output (power transistor) U, V and W of the inverter (control) circuit board from
the connection of the compressor.
c. Connect the wires of the detector (U=Red, V=White, W=Black) to the terminal wires of the
power transistor.
2) Judging the operation method
a. Insert the plug and press and hold the back-up switch for over 5 sec. till the appliance
commences operation.
b. Confirm the flashing and ON status of the 6 LEDs. The flashing and ON status, which
repeats for 300 sec., is shown below:
Flash (about 3 sec.) ←→ On (about 5 sec.) The flashing stops for one minute and then
repeats for 300 sec.
c. Judge according to the flashing and ON status of the LEDs.
Flashing and ON status of
LEDs
6 LEDs flash at the same
time.
6 LEDs go off or several
LEDs flash or light up.
Inverter
Normal
Defective
d. Let it operate for a while and the error will be indicated (the indoor RUN lamp flashes 2
times and the TIMER lamp flashes 2 times). The output of the inverter stops.
Note: The terminals of the power transistor that control the circuit board are mounted on the back
of the control casing. Remove the control circuit board before connection.
About AC 170V
About 10 sec.
About 300 sec.
The indoor RUN lamp
flashes 2 times and the
TIMER lamp flashes 2
times.
(Error code 73-76)
Insert them into the terminals
of the power transistor
- Table of Contents 2
- 1 GENERAL INFORMATION 4
- 1.1 Features 4
- Model identification 4
- For example: 4
- Drainage pipes 11
- Refrigerant outlet 12
- 3 ELECTRICAL WIRING DIAGRAM 15
- 3.2 Circuit diagram: 50MA-S 16
- 4.1 Name of each part 17
- Heat-retaining 18
- HI POWER/JET lamp (green) 18
- POWER SAVE lamp (green) 18
- Warm-up running 22
- (MAX 1 hour) 22
- HI POWER 23
- FAN SPEED 23
- Up/Down 24
- Left/Right 24
- Fixed point direction 28
- Speed position 30
- (rpm) 30
- Temperature measured by the 31
- At least 6.5 cm from ceiling 34
- Mounting plate 34
- At least 10 cm from wall 34
- At least 5 cm from wall 34
- 10cm MIN 35
- Plane mating mark 35
- Standard 35
- Installation of indoor unit 36
- To the left 37
- Handle Hi 39
- Remote control is 40
- Switch off the power supply 43
- Is the flap closed when the 43
- Is there any other data 46
- ② Stop data 48
- Does the buzzer sound? 52
- (Sound means negative) 52
- Check data recording sheet 55
- Does the air 61
- About 10 sec 64
- 15 min 66
- Clutch type 70
- Wing nut type 70
- Control valve ⑦ 78
- (2-way) 78
- (3-way) 78
- Liquid 80
- Fixture 81
- MOUNT ASSEMBLY 82
- RYD132A011A 83
- 8.1.2 SRK25MA-S 88
- 8.1.3 SRK35MA-S 94
- 8.1.4 SRK50MA-S 100
- - 100 103
- - 101 104
- - 102 105
- 8.2 Outdoor unit 106
- 8.2.1 SRC20MA-S 106
- - 104 107
- - 105 108
- - 106 109
- 8.2.2 SRC25MA-S 110
- RYF111A003F 111
- BASE ASSY 111
- - 109 112
- - 110 113
- 8.2.3 SRC35MA-S 114
- - 113 116
- - 114 117
- 8.2.4 SRC50MA-S 118
- RYF111A002G 119
- - 117 120
- RYC008A002 121
- PARTS,STANDARD 121
- AIR-CONDITIONING DIVISION 122
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