Table Of Contents - Toshiba HFC R407C Service Manual

Introduction
Precautions .......................................................................................................................................... 4
Components ......................................................................................................................................... 6
Outline of control system ...................................................................................................................... 9
Parts specification
Outdoor unit - general ......................................................................................................................... 12
Outdoor unit - refrigeration parts ......................................................................................................... 13
Outdoor unit - inverter assembly ......................................................................................................... 14
Multi Controller - general .................................................................................................................... 15
Construction views
Outdoor unit ........................................................................................................................................ 16
Multi Controller ................................................................................................................................... 17
Wiring diagram
Outdoor unit ........................................................................................................................................ 18
Multi Controller ................................................................................................................................... 20
Refrigeration schematic
Outdoor unit ........................................................................................................................................ 21
Normal operation - heat mode ............................................................................................................ 22
Normal operation - cool mode ............................................................................................................ 23
Simultaneous operation - mainly heat ................................................................................................. 24
Simultaneous operation - mainly cool ................................................................................................. 25
Diagnostic procedure
Diagnostic - outdoor unit ..................................................................................................................... 26
Diagnostic - Multi Controller unit ......................................................................................................... 32
Fault code display
Self-diagnostic function ...................................................................................................................... 34
Troubleshooting
Fault code table .................................................................................................................................. 36
Diagnostic procedure for check code ................................................................................................. 37
Control features ..................................................................................................................................... 63
Valve and sensor function and operation
Multi Controller valve function and operation ...................................................................................... 65
Outdoor unit valve functions ............................................................................................................... 66
Manual operation of valves ................................................................................................................. 67
Sensor and switch operation .............................................................................................................. 68
Refrigeration pipe installation
Leak test ............................................................................................................................................. 69
Vacuuming ......................................................................................................................................... 70
Charging ............................................................................................................................................. 71
Piping ................................................................................................................................................. 72
Additional refrigerant .......................................................................................................................... 73
Service parts list
Outdoor unit exploded views .............................................................................................................. 74
Inverter exploded view ........................................................................................................................ 77
Multi Controller exploded view ............................................................................................................ 78
Multi Controller electrical parts ........................................................................................................... 79
Contents
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