Service manual

SiENBE12-522A
ii Index
u0....................................................................240
u2....................................................................242
u4....................................................................215
ua............................................................216, 243
uh....................................................................243
error codes and description of fault.......................204
F
f3 ...........................................................................226
f6 ...........................................................................227
fan control .............................................................108
fan motor .......................................................270, 288
fan motor connector output check.........................244
fan motor or related abnormality
ac motor..........................................................210
dc motor..........................................................211
fan speed control.....................................................85
fan speed setting.......................66, 68, 71, 73, 75, 77
forced operation mode ..........................................115
forced operation on/off switch .................................66
four way valve ...............................................276, 292
four way valve abnormality....................................224
four way valve coil.................................................290
four way valve operation compensation................105
four way valve performance check........................246
four way valve switching .......................................105
freeze-up protection control ..........................107, 217
freeze-up protection control or high pressure control..
208
frequency control...................................................103
frequency principle ..................................................82
fu .............................................................................77
fu1 ...................................................66, 68, 71, 73, 75
functions....................................................................2
fuse ...........................................66, 68, 71, 73, 75, 77
G
gas pipe isothermal control during cooling............112
gas pipe thermistor..................98, 100, 269, 282, 291
H
h6 ..........................................................................229
h8 ..........................................................................230
h9 ..........................................................................232
ha ......................................................................66, 71
hall ic .......................................................85, 210, 211
hall ic check...........................................................253
heat exchanger thermistor ....................................291
heating peak-cut control........................................107
high pressure control in cooling ............................227
home leave operation......................................93, 162
hot start function......................................................95
I
indoor heat exchanger thermistor ...................99, 101
indoor unit pcb abnormality ...................................207
input current control ..............................................106
input over current detection...................................222
installation condition check ...................................248
instruction..............................................................123
insufficient gas ......................................................240
insufficient gas control.......................................... 114
intelligent eye ......................................................... 91
intelligent eye operation ....................................... 164
intelligent eye sensor ........................................... 298
intelligent eye sensor pcb........................... 67, 70, 72
inverter pcb .................................................. 269, 287
inverter powerful operation..................................... 94
inverter units refrigerant system check................. 250
J
j3 .......................................................................... 232
j4 .......................................................................... 297
j6 .......................................................................... 232
j8 .......................................................................... 232
j9 .......................................................................... 232
ja ...................................... 66, 68, 71, 73, 75, 77, 297
jb ...................................... 66, 68, 71, 73, 75, 77, 297
jc....................................... 66, 68, 71, 73, 75, 77, 297
jumper setting....................................................... 297
L
l3 .......................................................................... 234
l4 .......................................................................... 236
l5 .......................................................................... 238
led a ......................................... 66, 68, 71, 73, 75, 77
led1 ................................................ 66, 68, 71, 73, 75
led11 ...................................................................... 77
led12 ...................................................................... 77
led14 ...................................................................... 77
led2 ................................................ 66, 68, 71, 73, 75
led3 ................................................ 66, 68, 71, 73, 75
limit switch continuity check ................................. 244
liquid compression protection function 2 .............. 108
liquid pipe thermistor ...................... 99, 269, 282, 291
low hz high pressure limit ..................................... 110
low-voltage detection ........................................... 242
M
main circuit electrolytic capacitor check ............... 252
main structural parts............................................... 97
mode hierarchy .................................................... 102
mold proof air filter ................................................. 96
multi system ......................................................... 172
N
names of parts ..................................................... 126
night set mode........................................................ 89
O
oil recovery function ............................................. 113
ol activation .......................................................... 219
on/off button on indoor unit .................................... 95
opening limit ......................................................... 112
operation lamp ..................................................... 198
outdoor air thermistor ........................................... 291
outdoor heat exchanger thermistor ................ 98, 100
outdoor unit fan system check (with dc motor)..... 249
outdoor unit silent operation ................................. 160
outer panels ................................................. 256, 280
output over current detection ............................... 238
over current .......................................................... 114