Mitsubishi Heavy Industries FDT200VSAWPVH Service Manual page 3

1.4 Operation control function by the outdoor control ............................... 29
(1) Determination of comressor speed (Frequency) ....................................... 29
(2) Compressor start control ........................................................................... 30
(3) Compressor soft start control .................................................................... 30
(4) Outdoor fan control.................................................................................... 31
(5) Defrost operation ....................................................................................... 34
(6) Protective control/anomalous stop control by compressor,s number of revolutions ..... 35
(7) Silent mode ............................................................................................... 40
(8) Test run ...................................................................................................... 40
(9) Pump-down control ................................................................................... 40
(10) Base heater ON/OFF output control (Option)............................................ 41
2. MAINTENANCE DATA ..................................................................................... 42
2.1 Diagnosing of microcomputer circuit ..................................................... 42
(1) Selfdiagnosis function ............................................................................... 42
(2) Troubleshooting procedure........................................................................ 45
(3) Troubleshooting at the indoor unit ............................................................. 45
(4) Troubleshooting at the outdoor unit ........................................................... 53
(5) Check of anomalous operation data with the remote control .................... 58
(6) Power transistor module (Including the driver PCB) inspection procedure ... 60
(7) Inverter checker for diagnosis of inverter output ....................................... 61
(8) Outdoor unit control failure diagnosis circuit diagram ............................... 62
2.2 Troubleshooting flow ................................................................................ 63
(1) List of troubles ........................................................................................... 63
(2) Troubleshooting ......................................................................................... 64
3. ELECTRICAL WIRING .....................................................................................120
(1) Indoor units................................................................................................120
(2) Outdoor units .............................................................................................126
4. PIPING SYSTEM ..............................................................................................127
5. APPLICATION DATA ........................................................................................131
5.1 Installation of indoor unit .........................................................................131
(1) Ceiling cassette-4 way type (FDT) ............................................................131
(2) Ceiling cassette-4 way compact type (FDTC) ...........................................137
(3) Duct connected-High static pressure type (FDU) ......................................145
(4) Duct connected-Low/Middle static pressure type (FDUM) ........................151
(5) Ceiling suspended type (FDE) ..................................................................157
5.2 Electric wiring work installation ...............................................................161
5.3 Installation of outdoor unit .......................................................................165
5.4 Method for connecting the accessory pipe.............................................169
5.5 Instructions for branching pipe set (DIS-WA1G,WB1G,TA1G,TB1G) ...171
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