Table Of Contents - Toshiba MMU-UP0071MH-UL Service Manual

SAFETY CAUTION ....................................................................................................... 7
1. SPECIFICATIONS..................................................................................................... 9
1-1. Compact 4-way Cassette type ............................................................................................ 9
1-2. Slim Duct type ...................................................................................................................... 9
1-3. Floor Console Exposed type ............................................................................................ 10
1-4. Floor Console Recessed type .......................................................................................... 11
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) .................................................... 12
2-1. Compact 4-way Cassette type .......................................................................................... 12
2-2. Slim Duct type .................................................................................................................... 14
2-3. Floor Console Exposed type ............................................................................................ 16
2-4. Floor Console Recessed type .......................................................................................... 19
3. WIRING DIAGRAMS............................................................................................... 22
3-1. Compact 4-way Cassette type .......................................................................................... 22
3-2. Slim Duct type .................................................................................................................... 23
3-3. Floor Console Exposed type ............................................................................................ 24
3-4. Floor Console Recessed type .......................................................................................... 25
4. PARTS RATING ...................................................................................................... 26
5. REFRIGERANT CYCLE DIAGRAM ....................................................................... 27
6. CONTROL OUTLINE .............................................................................................. 28
7. COMMUNICATION TYPE, MODEL NAMES AND THE MAXIMUM
NUMBER OF CONNECTABLE UNITS ................................................................... 42
8. APPLIED CONTROL AND FUNCTIONS
(INCLUDING CIRCUIT CONFIGURATION) ........................................................... 43
8-1. Indoor controller block diagram (MCC-1643) ................................................................. 43
8-1-1. In case of connection of wired remote controller ................................................ 43
8-1-2. In case of connection of wireless remote controller (Slim Duct type) ............... 44
8-1-2. In case of connection of wireless remote controller
(Compact 4-way Cassette type) .............................................................................. 45
8-1-3. Connection of both wired remote controller and wireless remote controller ... 46
8-2. Indoor controller block diagram (MCC-1744) ................................................................. 47
8-2-1. In case of connection of wired remote controller ................................................ 47
8-2-2. In case of connection of wireless remote controller ........................................... 48
8-2-3. Connection of both wired remote controller and wireless remote controller ... 49
8-3. Indoor Print Circuit Board ................................................................................................ 50
8-3-1. MCC-1643 .................................................................................................................. 50
8-3-2. MCC-1744 .................................................................................................................. 52
8-4. Test run of indoor unit ...................................................................................................... 54
8-5. Method to set indoor unit function DN code .................................................................. 58
8-6. Applied control of indoor unit .......................................................................................... 64
9. TROUBLESHOOTING ............................................................................................ 85
9-1. Overview ............................................................................................................................. 85
9-2. Troubleshooting method ................................................................................................... 86
9-3. Troubleshooting based on information displayed on remote controller ..................... 92
9-4. Check Codes ...................................................................................................................... 99
9-5. Diagnostic Procedure for Each Check Code (Indoor Unit) ......................................... 112
9-6. Sensor Characteristics ................................................................................................... 120
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