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Si21-205
ii
Index
electronic expansion valve control .................97, 112
error codes
A1 ..................................................................142
A3 ..................................................................143
A6 ..........................................................146, 147
A7 ..................................................................149
AF ..................................................................145
AJ ..................................................................151
C4 ..................................................................152
C5 ..................................................................153
C9 ..................................................................154
CJ ..................................................................155
E5 ..........................................................164, 195
E6 ..........................................................165, 196
E7 ..................................................................197
E8 ..........................................................166, 198
EA ..........................................................167, 200
F3 ..........................................................169, 202
F6 ..........................................................184, 217
H6 ..........................................................170, 203
H8 ..........................................................171, 204
H9 ..........................................................173, 206
J3 ...........................................................173, 206
J6 ...........................................................173, 206
L3 ...........................................................175, 208
L4 ...........................................................177, 210
L5 ...........................................................179, 212
P4 ..........................................................173, 206
U0 ..........................................................181, 214
U2 ..........................................................183, 216
U4 ..................................................................156
U5 ..................................................................157
U8 ..................................................................158
UA ..................................................................159
UC .................................................................161
error codes and LED indication
indoor unit ......................................................140
outdoor unit ....................................................141
system ...........................................................139
external casing .....................................................264
F
F3 .................................................................169, 202
F6 .................................................................184, 217
failure of capacity setting ......................................151
failure of drain system ..........................................145
failure of indoor unit PC board .............................142
fan and flap operations ...........................................83
fan bearing ...........................................................261
fan control ......................................................94, 110
fan motor ......................................238, 259, 273, 292
fan motor connector output check ........162, 186, 219
fan rotor ........................................................238, 259
field setting
wired remote controller ....................................55
wireless remote controller ................................56
forced fan ON .........................................................71
forced operation mode .................................101, 116
four way valve ..............................................280, 306
four way valve abnormality ...........................167, 200
four way valve operation compensation .........91, 107
four way valve performance check .............. 188, 221
four way valve switching ............................... 91, 107
freeze-up protection control .................... 76, 93, 109
frequency control ........................................... 89, 105
front panel ........................................................... 287
front plate ............................................................ 264
function outline ...................................................... 74
functions, list of ....................................................... 6
H
H6 ................................................................ 170, 203
H8 ................................................................ 171, 204
H9 ................................................................ 173, 206
HAC1 ................................................................... 296
hall IC check ........................................................ 194
HE1 ..................................................................... 296
HE2 ..................................................................... 296
heat exchanger ........................................... 246, 286
heat exchanger thermistor
function (25/35 class) ................................ 86, 87
function (50/60 class) ............................ 102, 103
removal procedure (FFQ model) .................. 244
removal procedure (outdoor unit) ......... 280, 304
troubleshooting (indoor unit) ................. 152, 153
troubleshooting (outdoor unit) ............... 174, 207
heating peak-cut control ................................ 93, 109
high pressure control in cooling .................. 184, 217
HL ........................................................................ 296
horizontal blade ................................................... 258
horizontal vane .................................................... 234
I
individual setting .................................................... 71
indoor unit fan motor lock .................................... 146
indoor unit PCB (FFQ-B) ............................... 65, 250
indoor unit PCB (FHQ-B) .............................. 66, 256
initial setting contents ............................................ 57
input current control ...................................... 92, 108
input over current detection ......................... 166, 198
INSPECTION/TEST button ................................. 133
installation condition check ......................... 190, 223
insufficient gas ............................................ 181, 214
insufficient gas control ................................. 100, 115
inverter units refrigerant system check ....... 192, 225
J
J3 ................................................................ 173, 206
J6 ................................................................ 173, 206
L
L3 ................................................................ 175, 208
L4 ................................................................ 177, 210
L5 ................................................................ 179, 212
left side plate ....................................................... 265
list of functions ........................................................ 6
list of models ........................................................... 2
local setting
air flow direction .............................................. 60
fan OFF ........................................................... 60
fan speed changeover .................................... 61
filter sign ......................................................... 60
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...