Daikin FTX25JVEA9 Service Manual page 157

System control
Fan control in normal heating mode
Due to outside air temperature DOA and output frequency FOUT, conditions
below are met, the silent mode is activated and sets the fan rotation speed to FANLW.
3.25.2 Fan OFF Delay Control
Outline This function delays the OFF timing of the fan relay for a period of TFOF during compressor ON
→
operation.
(This function is not activated after pump-down operation.)
"
"
Note
"
During compressor ON → OFF operation, the function set the upper fan rotation speed to
Details
FANOF1 (700) rpm and the lower fan rotation speed to FANOF2 (650) rpm in order to delay the
OFF operation of the relay for a period of TFOF(150) sec.
144
Cooling operation
DOAL1 (37˚C)
DOAL2 (8˚C)
DOAL3 (-5˚C)
DOA > 4°C
FOUT < FFANW
(4˚C)
OFF
For the purpose of giving priority to capacitor discharge function after pump-down operation.
Fan rotation speed shall be FANOF rpm.
In the case of HPS activation, insufficient power supply voltage and momentary overcurrent
abnormality, the fan OFF delay control does not activate because the main relay turns off.
Normal fan control
Zone H
Zone L
FFANC (118Hz)
Normal fan control
Zone L
Zone H
FFANW (118Hz)
FHP (118Hz)
(M1035)
and
(M1036)
Main Functions
Si18-201
listed