Indoor Unit
SEZ-KD09NA(4)
SEZ-KD12NA(4)
SEZ-KD15NA(4)
SEZ-KD18NA(4)
Wired remote controller
Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Operation buttons
2
● Display
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
˚F˚C
˚F˚C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
Identifies the current operation
Shows the operating mode, etc.
* Multilanguage display is sup-
ported.
“Centrally Controlled” indicator
Indicates that operation of the remote controller has been prohibited by a master controller.
“Timer Is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time (The 12 hour clock or The 24
hour clock), unless the simple or Auto Off timer is set.
If the simple or Auto Off timer is set, shows the time
remaining.
“Sensor” indication
Displayed when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller buttons have been locked.
“Clean The Filter” indicator
Comes on when it is time to clean the
filter.
Timer indicators
The indicator comes on if the corresponding timer is set.
Up/Down Air Direction indicator
The indicator shows the direction of the outcoming airflow.
“One Hour Only” indicator
Displayed if the airflow is set to
Low and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow direction also changes.
Room Temperature display
Shows the room temperature.
Louver display
Indicates the action of the swing
louver. Does not appear if the
louver is stationary.
(Power On indicator)
Indicates that the power is on.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Caution
● Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
● If you press a button for a feature that is not installed in the indoor unit, the remote controller will display the “Not Available”
● When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indication
message.
If you are using the remote controller to operate multiple indoor units, this message will appear only if the feature is not
present at the parent unit.
(For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappears then start the operation.
3
2
SPECIFICATIONS
Model Name
Capacity
Power source
Power input
Current
Temperature set range Remote controller
Airflow direction
Fan
Type x Quantity
External static press
Motor type
Motor output
Driving mechanism
Airflow rate(Low-Mid-High)
Airflow rate(Low-Mid-High)
Airflow rate(Low-Mid-High)
External finish
External dimension
H x W x D
Net weight
Wiring
Refrigerant
piping diameter
Drain piping diameter
Sound level (Low-Mid-High)
(measured in anechoic room)
Insulation material
Air filter
Refrigerant control device
Protection devices
Heat exchanger
Varistor
Terminal block
Power outlet A
Standard
attachment
Remark
Note
Min.size of wire
Amperage of wire breaker
Liquid
Gas
Document
Accessory
1.Cooling/Heating capacity indicates the maximum value at operation under the following condition.
Drain piping diameter
Sound level (Low-Mid-High)
(measured in anechoic room)
Insulation material
Air filter
Refrigerant control device
Protection devices
Heat exchanger
Varistor
Terminal block
Power outlet A
Standard
attachment
Min.size of wire
Amperage of wire breaker
Liquid
Gas
R410A
R410A
Document
Accessory
Remark
Note
1.Cooling/Heating capacity indicates the maximum value at operation under the following condition.
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD09NA(4)
External static pressure:
0.06[in.WG](15Pa)
High
Middle
30
SPL(dB)
26
Low
23
LINE
<60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD09NA(4)
External static pressure:
0.02[in.WG](5Pa)
High
Middle
29
SPL(dB)
25
Low
22
LINE
<60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD09NA(4)
External static pressure:
0.20[in.WG](50Pa)
High
Middle
33
SPL(dB)
29
Low
25
LINE
<60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD09NA(4)
External static pressure:
0.14[in.WG](35Pa)
High
Middle
31
SPL(dB)
28
Low
24
LINE
<60Hz>
NOTCH
SOUND CRITERION CURVES
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than displayed level under actual installation condition by surrounding echoes. The sound level
can be higher by about 2 dB than the displayed level during cooling and heating operation.
6
SEZ-KD12NA(4)
External static pressure:
0.02[in.WG](5Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
33
28
23
<60Hz>
LINE
SEZ-KD12NA(4)
External static pressure:
0.06[in.WG](15Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
33
28
23
<60Hz>
LINE
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SEZ-KD12NA(4)
External static pressure:
0.14[in.WG](35Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
34
29
24
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
<60Hz>
LINE
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SEZ-KD12NA(4)
External static pressure:
0.20[in.WG](50Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
35
31
25
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
<60Hz>
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than displayed level under actual installation condition by surrounding echoes. The sound level
can be higher by about 2 dB than the displayed level during cooling and heating operation.
7
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD15NA(4)
External static pressure:
0.06[in.WG](15Pa)
High
Middle
37
SPL(dB)
34
Low
30
LINE
<60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD15NA(4)
External static pressure:
0.02[in.WG](5Pa)
High
Middle
36
SPL(dB)
33
Low
29
LINE
<60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD15NA(4)
External static pressure:
0.20[in.WG](50Pa)
High
Middle
39
SPL(dB)
36
Low
32
LINE
<60Hz>
NOTCH
90
80
70
60
50
40
30
20
10
631252505001000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
SEZ-KD15NA(4)
External static pressure:
0.14[in.WG](35Pa)
High
Middle
38
SPL(dB)
35
Low
31
LINE
<60Hz>
NOTCH
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than displayed level under actual installation condition by surrounding echoes. The sound level
can be higher by about 2 dB than the displayed level during cooling and heating operation.
8
SEZ-KD18NA(4)
External static pressure:
0.02[in.WG](5Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
37
33
29
<60Hz>
LINE
SEZ-KD18NA(4)
External static pressure:
0.06[in.WG](15Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
38
34
30
<60Hz>
LINE
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SEZ-KD18NA(4)
External static pressure:
0.14[in.WG](35Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
39
35
31
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
<60Hz>
LINE
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SEZ-KD18NA(4)
External static pressure:
0.20[in.WG](50Pa)
90
NOTCH
High
Middle
Low
SPL(dB)
39
36
32
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
<60Hz>
LINE
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
80
70
60
50
40
30
APPROXIMATE
20
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NOTE: The sound level is measured in an anechoic room where echoes are few, when compressor stops. The sound
may be bigger than displayed level under actual installation condition by surrounding echoes. The sound level
can be higher by about 2 dB than the displayed level during cooling and heating operation.