7
8
Rustling of leaves
Pendulum of a wall clock
Normal office
Indoor unit
Library
Outdoor unit
Side view
7 m
Top view
7 m
110˚
This series gives you the choice of 5-step, Quiet or
Automatic settings for the fan speed. The Quiet setting
selects Indoor Unit Quiet Operation. This function
decreases the sound pressure level by 3 to 4 dB (A)
below the Low setting. This wide range of settings
allows you to precisely control the fan speed according
to your requirements. For example, Indoor Unit Quiet
Operation provides you with a good night’s sleep. The
sound pressure level for the FTKS25G is 22 dB (A).
This function decreases the sound pressure level by 3
to 4 dB (A) below the rated operation. It provides a
sound pressure level of 43 dB (A) for the RKS25EB.
Capacity may decrease when Outdoor Unit Quiet Operation is selected.
Fan speeds
High (H)
Low (L)
Quiet (SL)
Sound pressure levels
37 dB (A)
25 dB (A)
22 dB (A)
FTKS25G
(dB (A))
22
30
40
43
50
20
22 dB (A) Is So Quiet You Can Even Hear Whispers
Indoor Unit Quiet Operation
Intelligent Eye prevents energy wastage by using its
infrared sensor to detect human movement in a room.
When there is no movement, Intelligent Eye increases the
temperature by 2 C to give energy savings. This reduces
energy wastage if, for example, you forget to turn off the
air conditioner. This function can be conveniently
activated from the remote controller.
Once Intelligent Eye is set, it continues to work to save energy. You do not
need to push the SENSOR button each time you wish to use this function.
Intelligent Eye
Outdoor Unit Quiet Operation
3 dB(A)
RKS25EB
Operations
Rated (H)
Quiet (SL)
Sound pressure levels
46 dB (A)
43 dB (A)
3 dB (A)
Selects fan speed and
Indoor Unit Quiet Operation
Indoor Unit Quiet Operation icon
Outdoor Unit Quiet Operation
The Intelligent Eye
indicator lights when
movement is detected.
Intelligent Eye
sensor
Intelligent Eye button
Econo Mode button
When you are in the room, the air
conditioner maintains the set
temperature.
If Intelligent Eye detects no human
movement for 20 minutes, it
automatically adjusts the set
temperature by 2 C.
When you enter the room,
Intelligent Eye automatically
returns the temperature to the
set level.
Each decrease in airflow volume
reduces the sound pressure level.
Fan
speed
Sound
pressure
level
H
h
g
i
H
w
o
L
L
SL
M
o
t
u
A
This function limits both the maximum running current
and maximum power consumption. It is particularly
effective if the cooling load is high, for example, at start-
up or during large gatherings and periods of direct
sunshine.
Econo Mode is also useful for preventing circuit
breakers from being overloaded during temporary
peaks in the running current. The function is easily
activated from the remote controller by pushing the
ECONO button.
Econo Mode
Based on “Examples of Sound Pressure Levels”, Ministry of the Environment,
Japan, November 12, 2002
Special Features
From start-up until set
temperature is reached
• This diagram is a representation for illustrative purposes only.
• Maximum capacity decreases during Econo Mode, requiring
more time to reach the set temperature.
Maximum during
normal operation
Running current and
power consumption
Time
Normal
operation
Econo
Mode
Maximum during
Econo Mode
