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Toshiba MMY-MUP0801HT8P-TR Service Manual page 3

Air conditioner multi type, super modular multi system-u smms-u, outdoor
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7- 5. Troubleshooting in Test Operation ................................................................................. 140
7- 5-1. A Check Code is Displayed on the Remote Controller ...................................... 140
7- 5-2. No Remote Controller Response with Check Code............................................ 141
7- 5-3. No Remote Controller Response without Check Code ...................................... 141
7- 5-4. Connected Indoor/Outdoor Unit Quantity Check ............................................... 142
7- 6. Test Operation Check ...................................................................................................... 144
7- 6-1. Fan Check ............................................................................................................... 144
7- 6-2. Cooling/Heating Test Operation Check ................................................................ 145
7- 7. Service Support Function ............................................................................................... 150
7- 7-3. Check Code Clearing Function ............................................................................. 158
7- 7-4. Remote Controller Distinction Function .............................................................. 161
Forced ON Function in Outdoor Unit .................................................................. 163
7- 7-7. Fan Operation Check in Outdoor Unit ................................................................. 165
7- 7-10. Refrigerant leakage detection ............................................................................ 168
7- 7-11. Monitor Function of Remote Controller Switch ............................................... 169
7- 8. Wave Tool Advance for SMMS-u Series ......................................................................... 171
7- 8-1. Before the Use of Wave Tool Advance ................................................................. 171
7- 8-2. About Wave Tool Advance ..................................................................................... 171
7- 8-4. Confirmation for NFC tag Communication .......................................................... 172
8. TROUBLESHOOTING .......................................................................................... 173
8- 1. Overview ........................................................................................................................... 173
8- 2. Troubleshooting method ................................................................................................. 174
8- 5. Diagnosis procedure for each check code ................................................................... 199
8- 6. 7-Segment Display Function .......................................................................................... 230
8- 7. Oil Level Judgment Display ............................................................................................ 237
8- 9. Leakage/Clogging of Refrigerating Cycle Circuit ......................................................... 240
8- 10. Sensor Characteristics ................................................................................................... 246
8- 11. Pressure Sensor Output Check ..................................................................................... 249
9. BACKUP OPERATION (EMERGENCY OPERATION) ........................................ 251
9- 1. Note for Backup Operation ............................................................................................. 251
9- 2. Compressor Backup Operation Setting ........................................................................ 252
9- 3. Outdoor Unit Backup Operation Setting ....................................................................... 254
unit) ......................................................................................................................... 254
unit) .......................................................................................................................... 256
9- 4. Cooling-Season Outdoor Unit Backup Operation Setting ........................................... 258
9- 5. Outdoor Unit Automatic Backup Operation Outline ..................................................... 259
10. OUTDOOR UNIT REFRIGERANT RECOVERY METHOD ............................... 260
10- 1-1. Note for refrigerant recovery operation ............................................................ 260
10- 1-2. Refrigerant recovery procedure A (Case that the troubled outdoor
unit turn on) ........................................................................................................... 260
10-1-3. Refrigerant recovery procedure B (Case that the troubled outdoor unit
does not turn on) ................................................................................................. 262
10- 3. Work procedure after Repair ......................................................................................... 264
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