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5. OPERATION
SETTING METHOD
About the AUTO setting of fan speed
Heating: Fan operates so as to optimally circulate warmed air. However, the fan will operate at very
low speed when the temperature of the air issued from the indoor unit is low.
Cooling: As the room temperature approaches that of thermostat setting, the fan speed becomes
slower.
Fan: The fan alternately turns on and off; when the fan turns on, it rotates at a low fan speed.
• The fan will operate at a very low speed during the monitor operation by which the room tempera-
ture is deleted.
Note If fan speed setting is attempted on a cooling & heat pump type refrigerant system, the central control
number will flash and fan operation will not be affected by the settings.
This occurs when a group is comprised of indoor units which are in different types of refrigerant
systems. (HEAT RECOVERY TYPE / HEAT PUMP TYPE / COOLING ONLY TYPE ) (Actually, the
command for the fan speed setting is sent to the relevant indoor units, it will not be conducted by those
indoor units where the fan speed setting is not permitted by the type of refrigerant system where they
exist.)
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