SERVICE PARTS INFORMATION 4
Inverter PCB
Noise Filter PCB
Diagnose Inverter PCB and Filter PCB
Check Filter PCB
Replace Inverter PCB
YES
YES
Main PCB circuit defective
Replace Main PCB
Check Inverter PCB
Check Voltage at Filter PCB
Replace Filter PCB
NO
YES
YES
NO
Filter PCB circuit defective
Replace Filter PCB
Check Inverter PCB Voltage
YES
Inverter PCB circuit defective
NO
Check Voltage from Main PCB
Replace Inverter PCB
NO
NO
Check Voltage at Filter PCB
OK
(1) Is Voltage from terminal normal?
>> If AC380V does not appear between
each terminal of LI1,LI2,LI3, check if
terminal connection is loose.
(2) Is Voltage to Inverter PCB appearing
at the connector?
>> If AC380V does not appear between
each terminals of LO1,LO2,LO3, the
circuit inside PCB can be considered as
defective. (Replace Filter PCB.)
Check Inverter PCB Voltage
Is Voltage to Capacitor OK?
YES
Check Voltage from Main PCB
Is DC16.5V appearing at connector
CN32 (3-4) on Main PCB?
>> If it does not appear, Main PCB
circuit may be defective.(Replace Main
PCB.) If the voltage is normal, check
Inverter Compressor.
YES
Is DC16.5V appearing at connector
CN32 (3-4) on Main PCB?
Is Voltage to Capacitor normal?
>> If DC586.8V(±10V) is appearing at
terminals TB-P2, TB-N1, it is normal.
>> If DC586.8V(±10V) is appearing at
terminals TB-P2, TB-N1, it is normal.
Check Electric parts of Inverter unit
Check Resistor,Cement (for surge prevention)
(PARTS INFORMATION 13)
>> If Resistor,Cement is defective,
replace Inverter PCB and Resistor,Cement.
Check Reactor
(PARTS INFORMATION 14)
>> If Reactor is defective, replace it.
Check Diode Bridge
(PARTS INFORMATION 15)
>> If DIode Bridge is defective, replace Inverter PCB.
(1) If there is loose connector or incorrect
wiring, correct it and replace Fuse.
(2) Check shortage or corrosion on Filter
PCB.
Is the correct voltage to Inverter PCB
appearing at the connector?
>> If AC380V is appeared between each
terminals of LO1,LO2,LO3, it is normal.
(1) If there is loose connector or incorrect
wiring, correct it and replace Fuse.
(2) Check shortage or corrosion on Filter
PCB.
Is Fuse (30A/500V) open?
NO
NO
06-91
Содержание AB*A12
Страница 6: ...1 TEST RUN ...
Страница 13: ...2 FUNCTION OF PRINTED CIRCUIT BOARD ...
Страница 58: ...3 INVERTER CONTROL ...
Страница 62: ...4 OUTDOOR UNIT OPERATION CONTROL ...
Страница 74: ...5 INDOOR UNIT OPERATION ...
Страница 90: ...6 TROUBLE SHOOTING ...
Страница 199: ...7 APPENDING DATA UNIT ...
Страница 207: ...7 3 WIRING DIAGRAM 07 08 7 3 1 Indoor Unit COMPACT CASSETTE TYPE MODELS AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 ...
Страница 208: ...07 09 MODELS AU A20 AU A25 AU A30 ...
Страница 209: ...07 10 MODELS AU A36 AU A45 AU A54 ...
Страница 210: ...07 11 COMPACT DUCT TYPE MODELS ARXB07 ARXB09 ARXB12 ARXB14 ARXB18 ...
Страница 211: ...07 12 MODEL ARXB25 MODELS ARXB30 ARXB36 ARXB45 LOW STATIC PRESSURE DUCT TYPE ...
Страница 212: ...07 13 MODELS ARXA30 ARXA36 ARXA45 MODEL ARXA25 DUCT TYPE ...
Страница 213: ...07 14 MODELS ARXC36 ARXC45 ARXC60 HIGH STATIC PRESSURE DUCT TYPE ...
Страница 214: ...07 15 MODEL ARXC90 ...
Страница 215: ...07 16 FLOOR CEILING TYPE MODELS AB A12 AB A14 AB A18 AB A24 ...
Страница 216: ...07 17 CEILING TYPE MODELS AB A30 AB A36 AB A45 AB A54 ...
Страница 217: ...07 18 COMPACT WALL MOUNTED TYPE Comfort model MODELS AS E07 AS E09 AS E12 AS E14 ...
Страница 218: ...07 19 WALL MOUNTED TYPE MODELS AS A18 AS A24 AS A30 ...
Страница 219: ...07 20 CEILING WALL TYPE MODELS AW A07 AW A09 AW A12 AW A14 AW A18 AW A24 AW A30 ...
Страница 220: ...07 21 7 3 2 Outdoor Unit MODELS AJ A72LBTF AJ A90LBTF ...
Страница 221: ...07 22 MODEL AJ 126LBTF ...
Страница 222: ...07 23 MODELS AJ A72UBTF AJ A90UBTF ...
Страница 223: ...07 24 MODEL AJ 126UBTF ...
Страница 230: ...8 DISASSEMBLY ILLUSTRATION PARTS LIST ...
Страница 232: ...Model AJ 126LBTF 104 111 100 101 107 112 103 105 102 110 106 08 02 ...
Страница 233: ...Model AJ 126LBTF 151 150 155 156 154 152 161 158 157 160 159 153 08 03 ...
Страница 238: ...Model AJ 126UBTF 100 101 107 105 102 110 106 08 08 104 111 112 ...
Страница 243: ...Model AJ A90LBTF 104 111 100 101 107 112 103 105 102 110 106 AJ A72LBTF 08 13 ...
Страница 244: ...151 150 155 156 154 152 161 158 157 160 159 153 08 14 Model AJ A90LBTF AJ A72LBTF ...
Страница 249: ...Model AJ A90UBTF 100 101 107 105 102 110 106 AJ A72UBTF 08 19 104 111 112 ...
Страница 287: ......
Страница 289: ......