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English
What to do before Operation
This operation manual is for the following system with standard control. Before initiating operation, contact your local dealer for
the operation that corresponds to your system type.
Operation Range
COOLING
HEATING
Outdoor temperature
Indoor temperature
57 to 77°FWB (14 to 25°CWB)
59 to 80°FDB (15 to 27°CDB)
Indoor humidity
80%
—
Note
• Cooling operation:
If the air conditioner is operated continuously while the indoor temperature is 70°FDB (21°CDB) or below and the humidity is 80% or
over, the interiors of the indoor units may cause icing and water leakage may result.
• Heating operation:
The air conditioner may stop operating for the protection of the machine if the outdoor temperature is 70°FDB (21°CDB) or over.
Cool/heat changeover
remote controller
If your installation has a customized control system, ask your local dealer for the operation that corresponds to your system.
23 to 122°FDB (– 5 to 50°CDB) – 4 to 60°FWB (– 20 to 15.5°CWB)
Name and Function of Each Switch and Display
Cool/Heat Selector
When the Cool/Heat selector remote controller is installed, the remote controller connected to the indoor unit cannot be used
to switch between cooling and heating operation.
<Cool/Heat selector>
1. Fan only/air conditioning selector switch
• Set the switch to “
” for fan only operation or to “
” for heating or cooling
operation.
2. COOL/HEAT changeover switch
• Set the switch to “
” for cooling operation or to “
” for heating operation.
Remote controller
• For more information, see the operation manual that came with the remote controller.
Operation Procedure
• Operation procedure varies according to the combination of outdoor unit and remote controller. Read the chapter “What to do
before Operation”.
• Do not turn it off during the air conditioning season for starting operation smoothly.
• If the main power supply is turned off during operation, operation will restart automatically after the power turns back on again.
Cooling, Heating and Fan only operation
• Select operation mode with the Cool/Heat selector as follows:
Cooling operation
Heating operation
Fan only operation
• Press On/Off button.
The operation lamp lights up and the system starts operation.
• The system can now be controlled from the remote controller.
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