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SM830035
2
2. Processes and functions
2-4 Outdoor Fan Speed Control
To optimize the performance of air conditioner, the outdoor fan speed is selected
automatically according to the outdoor temperature.
❑ Note that in both Cooling and Heating modes, the fan comes on at first at
high speed (H mode) for 5 seconds. Since outdoor conditions sometimes
make it difficult for the fan to start, this sudden surge of power may be
necessary.
❑ The outdoor fan operates in H mode for 3 minutes after the compressor stops
(excluding defrosting operation period).
❑ Charts below show how the outdoor fan speed changes with the change in
outdoor temperature.
(A) Cooling
Outdoor unit coil Outdoor fan
temperature [C2] motor (FMo)
Not less than 25° cH
Not more than 25° cM
OUTDOOR TEMPERATURE (°C)
25
H
M
OUTDOOR TEMPERATURE (°C)
14
M
H
Outdoor coil Outdoor fan
temperature [C2] motor (FMo)
Not less than 14° cM
Not more than 14° cH
(B) Heating
Fig. 6
Fig. 7
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