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16. Inspection/test operation button
This button is only used by qualified service
persons for maintenance purposes.
17. Programming time button
Use this button for setting the programming start
and/or stop time.
18. Temperature setting button
Use this button for setting the desired temperature.
19. Filter sign reset button
Refer to the operation manual of indoor unit.
20. Fan speed control button
Press this button to select the fan speed of your
preference.
21. Operation mode selector button
Press this button to select the operation mode of
your preference.
22. Air flow direction adjust button
Refer to the chapter "Operation procedure -
Adjusting the air flow direction".
23. Fan only/air conditioning selector switch
Set the switch to "
"
" for heating or cooling operation.
24. Cool/heat changeover switch
Set the switch to "
"
" for heating operation.
25. Thermistor
It sense the room temperature around the
remote controller.
26. These button are used when the ventilation unit
are installed (These are optional accessories)
Refer to the operation manual of the ventilation unit.
NOTE
• In contradistinction to actual operating situations, the
display on figure 1 shows all possible indications.
• Figure 2 shows the remote controller which is
opened the cover.
• For FXS, FXM, FXL, FXD and FXN, the air flow
direction adjust button (22) is not available and
the display (4) shows "NOT AVAILABLE" when
pressed.
5
" for fan only operation or to
" for cooling operation or to
5. OPERATION RANGE
Use the system in the following temperature and
humidity ranges for safe and effective operation.
outdoor temperature
indoor temperature
indoor humidity
NOTE
To avoid condensation and water dripping out the unit.
If the temperature or the humidity is beyond these
conditions, safety devices may work and the air con-
ditioner may not operate.
6. OPERATION PROCEDURE
• Operation procedure varies according to the com-
bination of outdoor unit and remote controller.
Read the chapter "What to do before operation".
• To protect the unit, turn on the main power switch
6 hours before operation.
And do not turn off the power supply during the air
conditioning season because of smoothly start
up.
• If the main power supply is turned off during oper-
ation, operation will restart automatically after the
power turns back on again.
6-1 COOLING, HEATING AND FAN ONLY
OPERATION
• The operation mode cannot be changed with the
remote controller whose display shows
"
" (changeover under control).
Change the operation mode with the remote con-
troller whose display does not show "
• When the display "
control) flashes, refer to the chapter "Operation
procedure - Setting the master remote controller".
• The fan may keep on running for about 1 minute
after the heating operation stops for removing the
heat in the indoor unit.
• The air flow rate may be adjusted automatically
depending on the room temperature or the fan
may stop immediately. This is not a malfunction.
• For machine protection the system may control
the air flow rate automatically.
• It may take sometime for finishing to change the
air flow rate.
This is normal operation.
COOLING
HEATING
–5°~43°CDB
–20°~21°CDB
–20°~15.5°CWB
21°~32°CDB
15°~27°CDB
14°~25°CWB
≤ 80%
" (changeover under
English
".
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