Fujitsu AUU7RLF Design & Technical Manual page 171

[Installation precautions]
When installation When the wall mounting type was installed in a bedroom, living
environment is room, or other quiet place, the sound of the refrigerant flow
quiet may be sensed as noise and must be taken into accunt.
When installing In the case of the ceiling chamber system (duct is not installed
duct type in at indoor unit inlet side and room air is sucked into the indoor
ceiling chamber unit through the inside of the ceiling), the thermistor inside the
system indoor unit may not correctly detect the room temperature.
Heating operation: Room is not heated because the indoor unit
is easily turned off by the thermostat. Cooling operation: Room
is too cold because the indoor unit is difficult to turn off by the
thermostat.
When the outlet Cooling operation does not cool the room and heating
air is sucked in operation does not heat the room because the short circuited
at duct type indoor unit is not turned on by the thermostat.
When using the Signals may not be received when using it in a room
wireless remote illuminated by an inverter fluorescent lamp.
controller
When installing It may generate noise in TV sets, stereos and PCs.
the inverter type
Contents
- (01 - 167) -
Countermeasures (Reference)
(1) Plan installation of a model
with external expansion valve.
(2) Plan installation of a branch
box farther from indoor unit.
(3) Plan installation using another
air conditioner.
(1) Replace the indoor unit
thermistor with a Remote
sensor unit (optional parts)
and install the sensor where
the room temperature can be
correctly detected.
(1) Reconsider the ventilation port
construction.
(2) Replace the indoor unit
thermistor with a Remote
sensor unit (optional parts)
and install the sensor where
the room temperature can be
correctly detected.
(1) Turn on the fluorescent lamp
and check if the indoor unit
receives the signals from the
remote controller.
If the indoor unit does not
receive the signals, consult an
authorized service personnel.
(1) The inverter type should be
installed at a sufficient distance
from these equipments.