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7
English
5. OPERATION RANGE
Use the system in the following temperature and
humidity ranges for safe and effective operation.
NOTE
•
Cooling operation:
If the air conditioner is operated continuously while
the indoor temperature is 70°F 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 pro-
tection of the machine if the outdoor temperature
is 70°F or over.
6. OPERATION PROCEDURE
• Operation procedure varies according to the com-
bination of outside 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 it off during the air conditioning
season for starting operation smoothly.
• 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, AUTOMATIC AND
FAN ONLY OPERATION
FOR SYSTEMS WITHOUT COOL/HEAT SELEC-
TOR (Refer to figure 4)
Press the operation mode selector button sev-
eral times and select the operation mode of
your choice;
“
” Cooling operation
“
” Heating operation
“
” Automatic operation
“
” Fan only operation
NOTE
• Automatic operation (REYQ only)
In this operation mode, cool/heat
changeover is automatically conducted.
• The operation mode cannot be changed with
the remote controller whose display shows
“
” (changeover under control).
Change the operation mode with the remote
controller whose display does not show
“
”.
• When the display “
” (changeover
under control) flashes, refer to the chapter
“6-5 SETTING THE MASTER REMOTE
CONTROLLER”.
Press the on/off button.
The operation lamp lights up and the system
starts operation.
FOR SYSTEMS WITH COOL/HEAT SELECTOR
(Refer to figure 4 and 7)
Select operation mode with the Cool/Heat
selector as follows:
“
” “
” Cooling operation
(Refer to figure 7.1)
“
” “
” Heating operation
(Refer to figure 7.2)
“
”
“
”
Fan only operation
(Refer to figure 7.3)
Press the on/off button.
(Refer to figure 4)
The operation lamp lights up and the system
starts operation.
ADJUSTMENT (Refer to figure 4)
To adjust the desired temperature, fan speed
and air flow direction (only for the remote con-
troller BRC1A51: FXF, FXH, FXA), follow the
procedure shown below.
Press the temperature setting button and set
the desired temperature.
Each time this button is pressed, the tem-
perature setting rises or lowers 1°F.
NOTE
• Set the temperature within the operation
range.
• The temperature setting is impossible for fan
only operation.
Press the fan speed control button and select
the fan speed of your preference.
COOLING
HEATING
outdoor temperature
23°~110°FDB
0°~60°FWB
indoor temperature
57°~77°FWB
59°~80°FDB
indoor humidity
≤
80%
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