Daikin FTXF25B User Manual

1 | Troubleshooting
Service manual
31
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
Check Detail
Check the installation conditions
(specified in the installation manual).
▪ Does the installed model has
sufficient capacity?
▪ Is there a short circuit air flow caused
by insufficient installation space?
Check the outdoor temperature. ▪ Heating operation cannot be used
when the outdoor temperature is
18°CWB or higher.
▪ Cooling operation cannot be used
when the outdoor temperature is
below –10°CDB.
1.6.4 Operating noise and vibrations
Check Detail
Check the installation conditions
(specified in the installation manual).
▪ Use general vibration prevention
where needed.
▪ If the mounting wall is too thin, you
must use cushion material or rubber,
or change the installation place.
▪ Refrigerant piping is too short; is the
length within specified range?
▪ Due to bad installation or general
conditions there may be deformation
of the unit.
▪ Are all the screws installed and
tightened properly?
▪ Is all piping secured, fixed and
supported by inserting a cushion
material where needed?
▪ Install piping weights or correct by
hand if any piping is in contact with
other parts.
▪ Is the fan in contact with other parts?
If so separate the fan from the other
parts.
Check refrigerant charge. ▪ Is the unit filled with the specified
refrigerant volume?
▪ Is there a flushing noise, due to
refrigerant shortage?
▪ Is there air in the system?
Check the expansion valve. If a passing sound is heard from the
pressure reducing valve, apply sound
insulation sheets of putty to reduce the
valve noise.

Daikin FTXF25B Specifications

General

Brand	Daikin
Model	FTXF25B
Category	Air Conditioner
Language	English