Daikin FTKS50BVMB, Service Manual

Page: 453 / 456

SiEN18-622
Drawings & Flow Charts vii
Drawings & Flow Charts
A
abnormal discharge pipe temperature .................368
actuation of high pressure switch .........................360
actuation of low pressure sensor .........................362
address duplication of central remote control ......399
address setting .....................................................176
after setting ..........................................................177
ARC433A .............................................................307
automatic air flow control .....................................120
automatic operation ..............................................122
auto-swing ............................................................119
B
buzzer PCB ............................................................63
C
centralized group No. setting ...............................178
check for causes of drop in low pressure .............405
check for causes of rise in high pressure .............404
check for fan motor connector ..............................406
check operation ....................................................149
check operation not executed ..............................391
check work prior to turn power supply on .............146
compressor motor lock .........................................364
condensation avoidance control (FHQ only) ........135
control PCB (A1P) ................................55, 76, 79, 81
control PCB (indoor unit) ..........61, 63, 64, 67, 71, 73
cool/heat selector PCB (A4P) ................................58
cooling operation fan control ................................100
D
dew condensation prevention control ...................112
diagnosis mode ....................................................308
discharge pipe protection control .........................109
display PCB ....................................61, 63, 65, 68, 71
display PCB (A3P) .................................................77
display PCB (A4P) ...........................................74, 82
drain pump control ...............................................135
E
econo mode .........................................................125
excessive number of indoor units .........................398
F
fan motor connector output check ................330, 350
fan motor or related abnormality
AC motor .......................................................325
DC motor .......................................................326
faulty BP liquid or gas pipe thermistor ..................354
faulty BP unit PCB ................................................353
faulty combination of inverter and fan driver ........386
faulty outdoor unit PCB ........................................359
field setting
cool/heat mode switching ..............................161
setting by dip switches ...................................152
wired remote control ..................................... 171
infrared remote control .................................. 172
freeze-up protection control ........................ 111, 134
freeze-up protection control or high pressure control
..................................................................... 323
full closing of electronic expansion valves ........... 116
function outline .................................................... 132
functional parts layout ........................................... 87
H
Hall IC check ....................................................... 332
high pressure protection control .......................... 107
high voltage of capacitor in main inverter circuit . 384
HOME LEAVE operation ..................................... 128
I
indoor unit fan motor lock .................................... 337
indoor unit PCB abnormality ....................... 322, 333
inspection/test button .......................................... 311
INTELLIGENT EYE ............................................. 126
INTELLIGENT EYE sensor PCB ..................... 61, 63
inverter compressor abnormal ............................. 380
inverter current abnormal .................................... 381
inverter POWERFUL operation ........................... 129
inverter protection control .................................... 110
inverter start up error ........................................... 382
J
jumper settings .................................................... 181
L
limit switch continuity check ................................ 330
location of operation lamp ................................... 303
low pressure drop due to refrigerant shortage or
electronic expansion valve failure ................ 387
low pressure protection control ........................... 108
M
main/sub switch (SS1) ........................................ 175
maintenance mode setting .................................. 179
malfunction of capacity setting ............................ 342
malfunction of discharge pipe thermistor (R2T) .. 371
malfunction of drain system ................................ 336
malfunction of drain water level system .............. 334
malfunction of electronic expansion valve ........... 352
malfunction of field setting switch ........................ 349
malfunction of heat exchanger thermistor (R2T) . 343
malfunction of heat exchanger thermistor (R3T) . 344
malfunction of high pressure sensor ................... 376
malfunction of indoor unit fan motor .................... 338
malfunction of inverter radiating fin temperature rise
..................................................................... 379
malfunction of inverter radiating fin temperature rise
sensor .......................................................... 385
malfunction of low pressure sensor ..................... 377