Algorithm & Control
20
2.7 Sleep Mode
SLEEP Mode can be activated through the remote controller to keep the thermal comfort while sleeping.
SLEEP Mode continues operation at the target temperature for the first hour, then automatically raises the target
temperature slightly in case of cooling, or lowers it slightly in case of heating. This prevents excessive cooling in
summer and excessive heating in winter to ensure comfortable sleeping conditions, and also saves electricity.
ON signal of sleep operation
ON signal of sleep opoperation ON signal
OFF signal of sleep operation
operation OFF signal
run
sleep operation
1hr
1hr
(shift 0.5°C/0.9°F)
(shift 1.0°C/1.8°F)
target temperature
<COOL or DRY>
target temperature
<HEAT>
(no offset on target
temperature)
(shift 1.0°C/1.8°F)
(shift 1.0°C/1.8°F)
2.8 Quiet function
• Press for quiet operation (for FTK(X)B-AX models) or (for FTK(X)N-AX models) for quiet operation
• Fan speed turns to minimum speed.
• Press again to deactivate the function.
• Available in HEAT and COOL modes only.
• Any change of fan speed will deactivate this function.
2.9 ECO+ function (Applicable for FTK(X)B-AX models)
• Press for eco-friendly mode cooling or heating operation.
• Set temperature automatically adjusts to eco-friendly level.
• Press again to deactivate the function.
• Available in HEAT and COOL modes only.
Cool mode
Heat mode
User set
temperature <
24°C (75°F)
Unit runs at 24°C (75°F)
24
ECO+
activated
User set
temp
Unit runs at (user set temperature - 1°C/2°F)
24
ECO+
activated
User
set temp
(User set temp - 1
0
C/2
0
F)
User set
temperature =
24°C (75°F)
Unit runs at 24°C (75°F)
Unit runs at 24°C (75°F)
User set
temperature >
24°C (75°F)
Unit runs at (user set tempe 1°C/2°F)
24
ECO+
activated
User
set temp
(User set temp +
1
⁰
C/2
°
F)
Unit runs at 24°C (75°F)
24
ECO+ activated
User
set temp
