Design Technical Manual

Table Of Contents
NOTES
NOTES
[Installation precautions]
Contents Countermeasures (Reference)
When
installing duct
type in an attic
In are is returned through the attic, the
thermistor in the indoor unit may not correctly
detect the room temperature.
Heating operation: Room is not heated
because the indoor unit is easily turned o󰀨 by
the thermostat.
Cooling operation: Room is too cold because
the indoor unit is di󰀩cult to turn o󰀨 by the
thermostat.
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.
When the duct
type outlet
blows on the
inlet (short
circuit)
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 a Remote
sensor unit (optional
parts) 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 uorescent
lamp.
1) Turn on the uorescent
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.
1) The inverter type should
be installed at a su󰀩cient
distance from these
equipment.
- (09-06) -