Condition
Contents
Countermeasures (Reference)
When
installation
environment is
quiet.
When the wall mounted type was installed in a bedroom,
living room, or other quiet place, the sound of the
refrigerant flow may be sensed as noise and must be
taken into account.
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.
When installing
duct type in
ceiling chamber
system.
In the case of the ceiling chamber system (duct is not
installed at indoor unit inlet side and room air is sucked
into the indoor unit through the inside of the ceiling), the
thermistor inside the 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.
Replace the indoor unit thermistor
with optional Remote sensor unit,
and install the sensor where the
room temperature can be correctly
detected.
When the outlet
air is sucked in
at duct type.
Cooling operation does not cool the room and heating
operation does not heat the room because the short
circuited indoor unit is not turned on by the thermostat.
1. Reconsider the ventilation port
construction.
2. Replace the indoor unit
thermistor with optional
Remote sensor unit, and install
the sensor where the room
temperature can be correctly
detected.
When using the
wireless remote
controller.
Signals may not be received when using it in a room
illuminated by an inverter fluorescent lamp.
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.
When installing
the inverter
type.
It may generate noise in TV sets, stereos and PCs.
The inverter type should be installed
at a sufficient distance from these
equipments.
Condition which
requires addition
of outside heat
insulation
Relative humidity 80 %
Dry bulb temperature 30 °C
Figure 1-1
Moist air curve
- 176 -
1-1. Indoor unit installation precautions
1. Installation precautions
SYSTEM
DESIGN
SYSTEM
DESIGN
Summary of Contents for AUYG18LVLB
Page 151: ...Part 2 OUTDOOR UNIT SIMULTANEOUS MULTI AOYG72LRLA AOYG90LRLA ...
Page 181: ...Part 3 SYSTEM DESIGN ...
Page 333: ...Part 4 OPTIONAL PARTS ...
