Mitsubishi Heavy Industries MHI FDU71VNXVF1 Technical Manual page 4

(13) Operation check/drain pump test run operation mode
(14) Cooling, dehumidifying frost protection ................................................. 95
(15) Heating overload protection
(16) Anomalous fan motor
(17) Plural unit control - Control of 16 units group by one remote control .............. 96
(18) High ceiling control
(19) Abnormal temperature thermistor (return air/indoor heat exchanger) wire/short-circuit detection
(20) External input/output control (CnT or CnTA)
(21) Operation permission/prohibition .......................................................... 98
(22) Selection of cooling/heating external input function
(23) Fan control at heating startup
(24) Room temperature detection temperature compensation during heating ........101
(25) Return air temperature compensation
(26) High power operation (RC-EX1A only)
(27) Energy-saving operation (RC-EX1A only)
(28) Warm-up control (RC-EX1A only)
(29) Home leave mode (RC-EX1A only)
(30) Auto temp. setting (RC-EX1A only)
(31) Fan circulator operation (RC-EX1A only)
(32) The operation judgment is executed every 5 minutes (RC-EX1A only)
(33) Auto fan speed control (RC-EX1A only)
(34) IU overload alarm (RC-EX1A only)
1.10.4 Operation control function by the outdoor control .........................103
(1) Determination of compressor speed (frequency) ..................................103
(2) Compressor start control ......................................................................103
(3) Compressor soft start control ...............................................................104
(4) Outdoor unit fan control
(5) Defrosting .............................................................................................107
(6) Protective control/anomalous stop control by compressor
(7) Silent mode ..........................................................................................112
(8) Test run ................................................................................................112
(9) Pump-down control ..............................................................................112
(10) Base heater ON/OFF output control (option)
1.11 MAINTENANCE DATA
1.11.1 Diagnosing of microcomputer circuit
(1) Selfdiagnosis function ..........................................................................114
(2) Troubleshooting procedure ..................................................................117
(3) Troubleshooting at the indoor unit
(4) Troubleshooting at the outdoor unit
.................................................................. 95
........................................................................... 95
............................................................................... 96
...............................................................101
.........................................................101
......................................................101
......................................................101
.......................................................102
.......................................................................105
...............................................................................114
.......................................................117
.....................................................121

- -
......................... 94
........................................ 97
..............................100
..................................................101
.................................................101
............................................101
..............................................102
...............................................102
,
s number of revolutions ......108
.......................................113
..............................................114
'12 • PAC-T-178
..... 96
........102