Daikin FVXS25FV1B Service Manual page 211

U2 ...................................................................133
U4 .....................................................................94
U7 ...................................................................135
UA.....................................................................96
error codes and description.....................................87
F
F3 ..........................................................................108
F6 ..........................................................................110
facility setting switch................................................49
fan control ...............................................................41
fan motor ...............................................................171
fan motor (DC motor) or related abnormality ..........91
fan motor connector output check.........................136
fan speed control.....................................................23
fan speed setting.............................................12, 189
filter
mold proof air filter (prefilter).............................29
titanium apatite photocatalytic
air-purifying filter ..................................29
filter PCB .................................................................15
forced cooling operation..........................................21
forced operation mode ............................................47
forced operation ON/OFF switch.............................16
four way valve .......................................................182
four way valve abnormality....................................104
four way valve coil.................................................182
four way valve operation compensation..................37
four way valve performance check........................137
four way valve switching .........................................36
freeze-up protection control ..............................40, 89
frequency control...............................................20, 33
frequency principle ..................................................20
front panel .............................................................166
FU1 .............................................................12, 14, 16
FU2 ...................................................................14, 16
FU3 ...................................................................14, 16
functions, list of .........................................................2
fuse .............................................................12, 14, 16
H
H0..................................................................112, 113
H6..........................................................................115
H8..................................................................116, 117
H9..........................................................................119
Hall IC ...............................................................23, 91
HC3 .........................................................................14
HC4 .........................................................................14
heat exchanger .....................................................165
heating peak-cut control..........................................40
high pressure control...............................................89
high pressure control in cooling ............................110
HL3..........................................................................14
HN3 .........................................................................14
hot start function......................................................29
HR1 .................................................................16, 178
HR2 .................................................................16, 178
I
indoor heat exchanger thermistor .....................31, 93
indoor unit PCB abnormality ...................................88
ii
input current control ............................................... 39
input over current detection.................................. 101
installation condition check .................................. 140
instruction ............................................................... 53
insufficient gas ..................................................... 129
insufficient gas control............................................ 46
inverter POWERFUL operation .............................. 28
inverter principle ..................................................... 20
inverter units refrigerant system check................. 142
J
J3 ......................................................................... 119
J6 ......................................................................... 119
JA ........................................................................... 12
JB ................................................................... 12, 189
JC ................................................................... 12, 189
jumper settings ..................................................... 189
L
L3 ......................................................................... 121
L4 ................................................................. 123, 125
L5 ......................................................................... 127
LED A ......................................................... 12, 14, 16
LED1 ...................................................................... 12
LED2 ...................................................................... 12
liquid compression protection function 2 ................ 41
list of functions ......................................................... 2
lower limit for cooling.............................................. 49
low-voltage detection ........................................... 133
M
main circuit electrolytic capacitor check ............... 145
main PCB (outdoor unit)......................................... 17
mode hierarchy ...................................................... 32
N
night set mode........................................................ 27
O
OL activation .......................................................... 98
ON/OFF button on indoor unit ................................ 29
opening limit ........................................................... 44
operation lamp ....................................................... 82
outdoor air temperature thermistor....................... 120
outdoor heat exchanger thermistor ........ 31, 120, 181
outdoor unit fan system check ............................. 141
outdoor unit PCB abnormality ................................ 97
output over current detection ............................... 127
over current .................................................... 46, 101
overload ........................................................... 46, 98
overload protector .................................................. 14
over-voltage detection .......................................... 133
P
P4 ......................................................................... 119
PCB ...................................................................... 177
PI control ................................................................ 34
piping diagrams .................................................... 192
position sensor abnormality ................................. 115
power failure recovery function .............................. 12
power supply waveforms check ........................... 142
SiBE06-708
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