Daikin FT25CV1A Service Manual page 207

filters
air purifying filter with photocatalytic deodorizing
function ................................26, 37, 149
mold proof air filter .....................................26, 37
forced cooling operation .........................................30
forced operation mode ...........................................48
four way valve abnormality .....................................99
four way valve activating guarantee .......................42
four way valve performance check .......................115
four way valve switching ........................................42
freeze-up protection control .......................24, 43, 88
frequency control ..............................................29, 40
frequency principle .................................................29
front grille .....................................................129, 151
front panel ............................................127, 150, 175
front plate .............................................................166
function list ...............................................................2
G
gas piping .....................................................140, 160
H
H8 .........................................................................103
H9 .........................................................................105
HA ......................................................12, 14, 16, 159
Hall IC ........................................................32, 90, 91
Hall IC check ........................................................122
heat exchanger ............................................140, 160
heat exchanger thermistor
..................................38, 93, 106, 134, 155, 176
heating peak-cut control .........................................44
high pressure control ..............................................88
high pressure control in cooling ...........................101
horizontal blade ............................................132, 153
hot start function .....................................................37
I
indoor unit PCB abnormality ............................87, 94
input current control ...............................................43
input over current detection ....................................98
installation condition check ..................................117
insufficient gas .....................................................113
insufficient gas control ............................................47
insulation material ........................................177, 179
inverter principle .....................................................29
inverter units compressor / refrigerant system check
......................................................................124
inverter units refrigerant system check ................120
J
J4 .........................................................................184
J6 .........................................................................105
JA .......................................................12, 14, 16, 184
JB .......................................................12, 14, 16, 184
JC .......................................................12, 14, 16, 184
jumper settings .....................................................184
L
L3 .........................................................................107
L4 .........................................................................109
L5 .........................................................................111
ii
LED indication ....................................................... 82
left side plate ............................................... 166, 167
liquid compression protection function 1 ............... 45
liquid compression protection function 2 ............... 46
liquid piping ................................................. 140, 160
M
mode hierarchy ..................................................... 39
mold proof air filter .......................................... 26, 37
N
names of parts ...................................................... 54
night set mode ................................................. 27, 35
O
OL activation ......................................................... 96
ON/OFF button on indoor unit ......................... 26, 37
operation lamp ...................................................... 82
outdoor air thermistor .................................. 106, 176
outdoor unit fan system check ............................ 119
output over current detection .............................. 111
over current ................................................... 98, 111
overload ................................................................ 96
P
P4 ........................................................................ 105
partition plate ....................................................... 172
PI control ............................................................... 41
piping diagrams ................................................... 186
power failure recovery function ......... 12, 14, 16, 184
power supply waveforms check .......................... 119
power transistor check ........................................ 121
power transistor output check ............................. 123
power-airflow dual flaps .................................. 25, 31
POWERFUL operation ........................ 27, 36, 48, 69
preheating operation ............................................. 42
preparation before operation ................................. 63
printed circuit board (PCB)
buzzer PCB ..................................................... 15
control PCB ................... 13, 15, 17, 87, 139, 159
display PCB .................................................... 15
outdoor unit ..................................................... 18
signal receiver PCB .................... 13, 15, 17, 138
problem and solution ............................................. 83
programme dry function .................................. 23, 33
propeller fan ........................................................ 169
R
radiation fin temperature rise .............................. 109
radiation fin thermistor ......................................... 106
receiver units ....................................................... 158
remote controller
ARC423 series ................................................ 84
ARC433 series ................................................ 85
right side plate ..................................................... 170
room temperature thermistor ................................. 93
S
S1 ........................................................ 134, 156, 159
S21 ...................................................................... 159
S26 ...................................................................... 159
Si01-406
Index