44
12.6 Quiet Operation (Heating)
Purpose
o
To provide quiet heating operation compare to normal operation.
Control
condition
o
Quiet operation start condition
When “POWERFUL/QUIET” button at remote control is pressed.
POWERFUL/QUIET LED illuminates.
o
Quiet operation stop condition
When one of the following conditions is satisfied, quiet operation stops:
POWERFUL/QUIET button is pressed again.
Stop by OFF/ON switch.
Timer “off” activates.
When quiet operation is stopped, operation is shifted to normal operation with previous setting.
When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.
When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, except
fan mode only.
During quiet operation, if timer “on” activates, quiet operation maintains.
After off, when on back, quiet operation is not memorised.
Control
contents
o
Fan speed manual
Fan speed is changed from normal setting to quiet setting of respective fan speed.
Fan speed for quiet operation is reduced from setting fan speed.
o
Fan Speed Auto
Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger.
12.7 Powerful Mode Operation
When the powerful mode is selected, the internal setting temperature will shift lower up to 2°C (3.6°F) (for
Cooling/Soft Dry) or higher up to 3.5°C (6.3°F) (for Heating) than remote control setting temperature for
20 minutes to achieve the setting temperature quickly.
12.8 Timer Control
There are 2 sets of ON and OFF timer available to turn the unit ON or OFF at different preset time.
If more than one timer had been set, the upcoming timer will be displayed and will activate in sequence.
12.8.1 ON
Timer
Control
ON timer 1 and ON timer 2 can be set using remote control, the unit with timer set will start operate earlier than
the setting time.
This is to provide a comfortable environment when reaching the set ON time.
60 minutes before the set time, indoor (at fan speed of Lo-) and outdoor fan motor start operate for 30 seconds to
determine the indoor intake air temperature and outdoor air temperature in order to judge the operation starting
time.
From the above judgment, the decided operation will start operate earlier than the set time as shown below.
12.8.2 OFF Timer Control
OFF timer 1 and OFF timer 2 can be set using remote control, the unit with timer set will stop operate at set time.
Indoor intake air
temperature °C (°F)
Outdoor air
temperature °C (°F)
30 (86)
30
(86)
35
(95)
Cooling/Soft Dry
10 min
15 min
5 min
25 (79)
Indoor intake air
temperature °C (°F)
Outdoor air
temperature °C (°F)
15 (59)
0
(32)
5
(41)
Heating
30 min
25 min
35 min
5 (41)