Installation condition check
Normal
(R0287)
Abnormal
YES
YES
YES
NO
NO
NO
Is the heat
exchanger very dirty?
Check the
allowable dimensions
of the air suction and
discharge area.
Is the airflow
blocked by obstacles or
winds blowing in the
opposite direction?
Does the
discharged air from
other outdoor unit cause an
increase of the suction air
temperature?
Change the position of the air
discharge grille or the
installation location.
Change the position of the air
discharge grille or the
installation location.
Change the installation
location or direction.
Check the outside air
temperature (temperature of air
taken in by the outdoor unit).
(The outside air temperature
shall be 109°F (43°C) or lower.)
Clean the heat exchanger.