Mitsubishi Heavy Industries FDT100VNAWVH Service Manual page 4

(34) Auto fan speed control (RC-EX3A only) .................................................... 29
(35) Indoor unit overload alarm (RC-EX3A only) .............................................. 29
(36) Peak-cut timer (RC-EX3A only) ................................................................. 29
(37) Motion sensor control (RC-EX3A only)...................................................... 30
(Ⅱ) SRK Seris .................................................................................................. 32
(1) Unit ON/OFF button .................................................................................. 32
(2) Auto restart function .................................................................................. 32
(3) Auto swing control ..................................................................................... 33
(4) Timer operation ......................................................................................... 34
(5) Outline of heating or cooling operation...................................................... 35
(6) Indoor fan motor protection ....................................................................... 35
(7) Serial signal transmission error protection ................................................ 35
(8) Plural unit control - Control of 16 units group by one remote control ........ 35
(9) Filter sign ................................................................................................... 36
(10) Outline of automatic operation .................................................................. 36
(11) Frost prevention control ............................................................................. 38
(12) Dew prevention control ............................................................................. 38
(13) Outline of dehumidifying (DRY) operation ................................................. 40
1.1.4 Operation control function by the outdoor control ............................ 41
(1) Determination of comressor speed (Frequency) ....................................... 41
(2) Compressor start control ........................................................................... 41
(3) Compressor soft start control .................................................................... 42
(4) Outdoor fan control.................................................................................... 43
(5) Defrost operation ....................................................................................... 44
(6) Protective control/anomalous stop control by compressor,s number of revolutions ..... 45
(7) Silent mode ............................................................................................... 48
(8) Test run ...................................................................................................... 48
(9) Pump-down control ................................................................................... 49
1.2 MAINTENANCE DATA ................................................................................... 50
1.2.1 Diagnosing of microcomputer circuit .................................................. 50
(1) Selfdiagnosis function ................................................................................. 50
(2) Troubleshooting procedure.......................................................................... 55
(3) Troubleshooting at the indoor unit ............................................................... 55
(4) Troubleshooting at the outdoor unit ............................................................. 67
(5) Check of anomalous operation data with the remote control ...................... 77
(6) Inverter checker for diagnosis of inverter output ......................................... 79
(7) Outdoor unit control failure diagnosis circuit diagram ................................. 80
1.2.2 Troubleshooting flow ............................................................................. 82
(1) List of troubles ............................................................................................. 82
(2) Troubleshooting ........................................................................................... 84
3
- -
'19 • PAC-SM-309