Daikin CTXU25G2V1B User manual

SiBE12-908
Specifications, designs and other content appearing in this brochure are current as of January 2009 but subject to change without notice.
SiBE12-908
Printed in Japan 01/2009 B AK
SiBE12-908
[Applied Models]
 Inverter Multi : Heat Pump
Service Manual / Inverter Multi System with Humidifying G-Series
Preliminary
Inverter Multi System
with Humidifying
G-Series

SiBE12-908
Table of Contents i
Inverter Multi System
with Humidifying
G-Series
zHeat Pump
Indoor Unit
CTXU25G2V1B
CTXU35G2V1B
CTXU42G2V1B
CTXU50G2V1B
Outdoor Unit
2MXU40GV1B
2MXU50GV1B

SiBE12-908
ii Table of Contents

SiBE12-908
Function and Control 1
Part 4
Function and Control
1. Main Functions........................................................................................2
1.1 Frequency Principle..................................................................................2
1.2 Thermostat Control...................................................................................4
1.3 Automatic Operation.................................................................................5
1.4 Programme Dry Function .........................................................................6
1.5 Airflow Direction Control...........................................................................7
1.6 Fan Speed Control for Indoor Units..........................................................8
1.7 HUMID HEAT Operation ..........................................................................9
1.8 Fresh Air Supply Ventilation ...................................................................14
1.9 2-AREA INTELLIGENT EYE ..................................................................16
1.10 Inverter POWERFUL Operation .............................................................18
1.11 ECONO Mode ........................................................................................19
1.12 NIGHT SET Mode ..................................................................................20
1.13 Other Functions......................................................................................21
1.14 Table for Special Modes.........................................................................23
2. Function of Thermistor ..........................................................................25
2.1 Heat Pump Model...................................................................................25
3. Control Specification .............................................................................27
3.1 Mode Hierarchy ......................................................................................27
3.2 Automatic switching for HUMID HEAT operation room..........................28
3.3 Frequency Control..................................................................................29
3.4 Controls at Mode Changing / Start-up....................................................31
3.5 Discharge Pipe Temperature Control.....................................................33
3.6 Input Current Control..............................................................................33
3.7 Freeze-up Protection Control .................................................................34
3.8 Heating Peak-cut Control .......................................................................34
3.9 Fan Control.............................................................................................35
3.10 Liquid Compression Protection Function 2.............................................35
3.11 Defrost Control .......................................................................................36
3.12 Electronic Expansion Valve Control .......................................................37
3.13 Malfunctions ...........................................................................................41
3.14 Forced Operation Mode .........................................................................42
3.15 Additional Function.................................................................................43

Main Functions SiBE12-908
2Function and Control
1. Main Functions
1.1 Frequency Principle
Main Control
Parameters
The compressor is frequency-controlled during normal operation. The target frequency is set by
the following 2 parameters coming from the operating indoor unit:
The load condition of the operating indoor unit
The difference between the room temperature and the set temperature
Additional
Control
Parameters
The target frequency is adapted by additional parameters in the following cases:
Frequency restrictions
Initial settings
Forced cooling operation
Inverter Principle To regulate the capacity, a frequency control is needed. The inverter makes it possible to vary
the rotation speed of the compressor. The following table explains the conversion principle:
Drawing of
Inverter
The following drawing shows a schematic view of the inverter principle:
Phase Description
1The supplied AC power source is converted into the DC power source for the present.
2The DC power source is reconverted into the three phase AC power source with variable
frequency.
When the frequency increases, the rotation speed of the compressor increases resulting
in an increased refrigerant circulation. This leads to a higher amount of the heat
exchange per unit.
When the frequency decreases, the rotation speed of the compressor decreases
resulting in a decreased refrigerant circulation. This leads to a lower amount of the heat
exchange per unit.
50 Hz
60 Hz
Refrigerant circulation rate (high)
Amount of heat
exchanged air (large)
Amount of heat
exchanged air (small)
AC
power
freq=
constant
DC
power
Amount of heat
exchanged air (large)
Amount of heat
exchanged air (small)
high f
low f
freq=variable capacity=
variable
Refrigerant circulation rate (low)
high speed
low speed
(R2812)

SiBE12-908 Main Functions
Function and Control 3
Inverter Features The inverter provides the following features:
The regulating capacity can be changed according to the changes in the outdoor air
temperature and cooling / heating load.
Quick heating and quick cooling
The compressor rotational speed is increased when starting the heating (or cooling). This
enables a quick set temperature.
Even during extreme cold weather, the high capacity is achieved. It is maintained even when
the outdoor air temperature is 2°C.
Comfortable air conditioning
A detailed adjustment is integrated to ensure a fixed room temperature. It is possible to air
condition with a small room temperature variation.
Energy saving heating and cooling
Once the set temperature is reached, the energy saving operation enables to maintain the
room temperature at low power.
Frequency Limits The following table shows the functions that define the minimum and maximum frequency:
Forced Cooling
Operation
For more information, refer to “Forced operation mode” on page 42.
60 120 300
45˚C
Air discharge
temperature
inverter
normal heat pump
Start seconds
(R1187)
Frequency limits Limited during the activation of following functions
Low Four way valve operation compensation. Refer to page 31.
High Discharge pipe temperature control. Refer to page 33.
Input current control. Refer to page 33.
Compressor protection function. Refer to page 32.
Heating peak-cut control. Refer to page 34.
Freeze-up protection control. Refer to page 34.
Defrost control. Refer to page 36.

Main Functions SiBE12-908
4Function and Control
1.2 Thermostat Control
Thermostat control is based on the difference between the room temperature and the set point.
Thermostat OFF Condition
The temperature difference is in the zone A.
Thermostat ON Condition
The temperature difference is above the zone C after being in the zone A.
The system resumes from defrost control in any zones except A.
The operation turns on in any zones except A.
The monitoring time has passed while the temperature difference is in the zone B.
(Cooling / Dry : 10 minutes, Heating : 10 seconds)
Cooling / Dry
Heating
B
A
OFF
ON
C
Cooling : –0.5˚C
Dry : –0.5˚C
Room temperature - set point
Cooling : –2.0˚C
Dry : –2.5~–2.0˚C
(R4668)
B
A
OFF
ON
C
2.0˚C
Room temperature - set point
0.5˚C
(R9424)

SiBE12-908 Main Functions
Function and Control 5
1.3 Automatic Operation
Automatic Cooling / Heating Function
When the AUTO mode is selected with the remote controller, the microcomputer automatically
determines the operation mode from cooling and heating according to the room temperature
and setting temperature at the time of the operation startup, and automatically operates in that
mode.
The unit automatically switches the operation mode to cooling or heating to maintain the room
temperature at the main unit setting temperature.
Detailed
Explanation of
the Function
1. Remote controller setting temperature is set as automatic cooling / heating setting
temperature (18 to 30°C).
2. Main unit setting temperature equals remote controller setting temperature.
3. Mode switching point are as follows.
Heating →Cooling switching point:
Room temperature ≥Main unit setting temperature +3.0 deg.
Cooling →Heating switching point:
Room temperature < Main unit setting temperature –2.5 deg.
Thermostat ON / OFF point is the same as the ON / OFF point of cooling or heating
operation.
4. During initial operation
Room temperature ≥Remote controller setting temperature: Cooling operation
Room temperature < Remote controller setting temperature: Heating operation
Ex: When the set point is 25°C
Cooling Operation →23°C: Thermostat OFF → 22°C: Switch to Heating Operation
Heating Operation → 27°C: Thermostat OFF →28°C: Switch to Cooling Operation
(R9417)
Set point +3.0ºC
Set point –2.0ºC
=Thermostat OFF
Set point +2.0ºC
=Thermostat OFF
Heating Operation
Set point –2.5ºC
Cooling Operation

Main Functions SiBE12-908
6Function and Control
1.4 Programme Dry Function
Programme dry function removes humidity while preventing the room temperature from
lowering.
Since the microcomputer controls both the temperature and airflow volume, the temperature
adjustment and fan adjustment buttons are inoperable in this mode.
In Case of
Inverter Units
The microcomputer automatically sets the temperature and fan settings. The difference
between the room temperature at startup and the temperature set by the microcomputer is
divided into two zones. Then, the unit operates in the dry mode with an appropriate capacity for
each zone to maintain the temperature and humidity at a comfortable level.
Room temperature at
startup
Set temperature
X
Thermostat OFF point
Y
Thermostat ON point
Z
24ºC or more
Room temperature at
startup
X –2.5ºC
X –0.5ºC
or
Y + 0.5ºC (zone B)
continues for 10 min.
23.5ºC
X –2.0ºC
X –0.5ºC
or
Y + 0.5ºC (zone B)
continues for 10 min.
~
18ºC
18ºC X –2.0ºC
X –0.5ºC = 17.5ºC
or
Y + 0.5ºC (zone B)
continues for 10 min.
17.5ºC
~
Z
Y
Zone B Zone B
Zone A = Thermostat OFF
Zone C = Thermostat ON
+0.5ºC
(R6841)

SiBE12-908 Main Functions
Function and Control 7
1.5 Airflow Direction Control
Power-Airflow
Dual Flaps
The large flaps send a large volume of air downwards to the floor. The flap provides an optimum
control area in cooling, heating, and dry mode.
Heating Mode
During heating mode, the large flap enables direct warm air straight downwards. The flap
presses the warm air above the floor to reach the entire room.
Cooling / Dry Mode
During cooling or dry mode, the flap retracts into the indoor unit. Then, cool air can be blown far
and pervaded all over the room.
Wide-Angle
Louvres
The louvres, made of elastic synthetic resin, provide a wide range of airflow that guarantees a
comfortable air distribution.
Auto-Swing The following table explains the auto swing process for heating, cooling, dry, and fan :
3-D Airflow Alternative repetition of vertical and horizontal swing motions enables uniform air-
conditioning of the entire room. This function is effective for starting the air conditioner.
When the horizontal swing and vertical swing are both set to auto mode, the airflow become
3-D airflow and the horizontal swing and vertical swing motions are alternated. The order of
swing motion is such that it turns counterclockwise, starting from the right upper point as
viewed to the front side of the indoor unit.
COMFORT
AIRFLOW
The vertical swing flap is controlled not to blow the air directly on the person in the room.
Vertical Swing (up and down) Horizontal Swing
(right and left:
automatic)
Cooling / Dry Heating Fan
15˚
50˚
30˚
55˚
(R8315) (R8316)
30˚
70˚
30˚
65˚
(R8317)
5˚
80˚
30˚ 65˚
(R8318)
45˚
45˚


(R1024)
Heating Cooling
(R8413)
80°
(R4302)
5°

Main Functions SiBE12-908
8Function and Control
1.6 Fan Speed Control for Indoor Units
Control Mode The airflow rate can be automatically controlled depending on the difference between the set
temperature and the room temperature. This is done through phase control and Hall IC control.
For more information about Hall IC, refer to the troubleshooting for fan motor on page 116.
Phase Steps Phase control and fan speed control contains 9 steps: LLL, LL, SL, L, ML, M, MH, H and HH.
In automatic fan speed operation, the step “SL” is not available.
= The airflow rate is automatically controlled within this range when the FAN setting
button is set to automatic.
Note: 1. During POWERFUL operation, fan operates H tap + 50 rpm.
2. Fan stops during defrost operation.
3. In time of thermostat OFF, the fan rotates at the following speed.
Cooling: The fan keeps rotating at the set tap.
Heating: The fan stops.
Dry: The fan will stop after keeps rotating for a few minutes at LL tap.
Automatic
Airflow Control
for Heating
On heating mode, the indoor fan speed will be regulated according to the indoor heat exchanger
temperature and the difference between the room temperature and the required set point.
Automatic
Airflow Control
for Cooling
The following drawing explains the principle of fan speed control for cooling:
Note: *In automatic fan speed operation, upper limit is at M tap in 30 minutes from the operation start.
COMFORT
AIRFLOW Mode
The airflow rate is controlled automatically within the following steps.
Cooling: L tap – MH tap (same as AUTOMATIC)
Heating: ML tap – MH tap
The latest command has the priority between POWERFUL and COMFORT AIRFLOW.
Step Cooling Heating
LLL
LL
L
ML
M
MH
H
HH (POWERFUL)
(R6833) (R6834)
+1.5˚C
+2.5˚C
+0.5˚C
+2˚C
+1˚C
M+2˚C
MH*
ML
L
fan speed
Difference between room
and set temperature
Phase control
Thermostat
setting
temperature (R8301)

SiBE12-908 Main Functions
Function and Control 9
1.7 HUMID HEAT Operation
Operation
∗Refer to the operation manual for details.
Features A world first new humidifying method has adopted
What is new in this method is to intake vapor in the outdoor air with the hygroscopic element
mounted in outdoor unit, and send indoors. This has enabled powerful and speedy
humidification apart from other company's methods which just absorb moisture in the indoor
air.
The room is uniformly humidified.
• Humidifier + heating operation by air conditioner
Moisture gathers around the ceiling, as it is lighter than the air even if the humidifier is
operated. The air on the floor is kept dry.
1. Select HEAT mode.
2. Set humidity.
(R9409)
2
1
fully humidifying the room
(R9410)
fully humidifying the room
by taking in outdoor moisture
by taking in outdoor moisture
When using humidifier, moisture gathers around the ceiling.
80
70
60
50
40
30
20
(R3325)

Main Functions SiBE12-908
10 Function and Control
• HUMID HEAT operation by URURU
This air conditioner enables uniformly humidifying the room by circulating vapor with warm
air.
Powerful humidifying ability
The humidifying capacity is 450 ml/h and equivalent to that of a normal humidifier.
The value is measured at 7°C DB / 6°C WB of outdoor air and with 4.0 m of humidifying hose
length.
No need for water supply nor cleaning
Water supply and cleaning are unnecessary as it does not have water tank, unlike
humidifiers, and there is no proliferations of bacteria.
Humidity control
The target of the humidity level is 40 to 50%RH.
You can select from Low, STD (standard), Hi (high), and CONT (continuous). The target
humidity (%) cannot be set.
Note When the outdoor temperature and humidity are low, the humidifying capacity is decreased.
In addition, the moisture in the room may not attain sufficient humidity when the ventilation
volume is high, the preset temperature is high, or the preset humidity is HIGH.
After the “humid heating” operation starts, the relative humidity in the room lowers
temporarily. This phenomenon is caused by the increase of the saturation water vapor.
Therefore, the humidity raises gradually after the temperature reaches the preset
temperature.
In the humidifying operation, the operation sound increases by about 2 dB in the indoor unit
and 3 dB in the outdoor unit.
This system does not suppose the storage of musical instruments or the like.
Conditions for
Humidifying
Operation
While heating mode, humidifying operation can be available when the following conditions 1~5
are met at the same time.
1. Indoor heat exchanger temperature is 12°C or more.
2. Outdoor temperature is from –10°C to 24°C (meanwhile, in test operation, up to 34°C is
possible). Humidifying operation does not work under –10°C.
3. Approx. 1 minute has already passed after heating operation startup. (See Note.)
4. Heating operation does not work to its full capacity. (Meanwhile, the “continuous”
humidification is selected, humidifying operation has the priority.)
5. Room humidity is under 70%RH.
Note Exclude the case when it is recovered from thermostat-off or when the defrosting operation
finished.
80
70
60
50
40
30
20
(R3326)
The room is uniformly humidified.

SiBE12-908 Main Functions
Function and Control 11
How to Check the
Motion of
Humidifying
Operation
You can check whether the humidifying unit is in good working order. If you set HUMID HEAT
test operation (refer to the installation manual for details), you can check even beyond the range
of the conditions for humidifying operation.
1. Hygroscopic fan .......................... Air is exhaled from the front exhaust outlet of outdoor unit.
2. Humidifying fan/heater/damper ... Warm air is blown from the duct of outdoor unit.
3. Humidification rotor ..................... The rotor is rotating with top panel off.
As for the performance, estimate from psychrometric chart with the measured temperature and
humidity of the outdoor air and of the humidified air (in front of the indoor outlet) using thermal
hygrometer.
Humidity
Fluctuation by
Temperature
Settings
At HUMID HEAT operation, as room temperature rises, relative humidity is temporarily lowered.
This is because as room temperature rises, relative humidity is lowered even if the moisture
content is the same.
e.g.) The rise in the room temperature from 15°C to 25°C will result in the fall in humidity from
40%RH to about 22%RH.
As humidifying operation starts concurrently with heating, humidity rises gradually as shown in
the figure below.
Some room conditions (floor space, ventilation frequency, number of residents, etc.) and
temperature settings (mostly higher settings) may result in unsatisfactory humidity settings.
Airflow rate (m3/min)
0.38
90
100
Humidity
(%)
80
70
60
50
40
30
20
10
0
20 40 60 80 100 Time (min.)
17
Setting temp.
“HUMID HEAT” start
20
23
Heating
without humidifying
setting temp. 23
Humidity Fluctuation on HUMID HEAT Operation
When room temperature rises,
relative humidity is lowered
even if the moisture
content is same.
Humidity rises
gradually.
(R9411)
Measurement Conditions
Outdoor temp.: 7
HUMID HEAT operation setting:
Temp.; each setting as below, Humidity; “CONT” (Continuous)
Airflow rate setting: H tap
Area of the room: 26.4 m²
Humidifying hose length: 4.0 m
Ventilation: 0.75 times/hour
0.5 times of natural ventilation
0.25 times of humidity absorption by a carpet, a curtain, etc.

Main Functions SiBE12-908
12 Function and Control
Time chart for
humidifying
operation control
Approx. 1min. after HUMID HEAT operation start up, it repeats humidifying and drying
alternately (to protect condensation for inside the hose).
Time chart for HUMID HEAT operation on trial mode
HUMID HEAT operation on trial mode works in the same sequence as HUMID HEAT
operation, but about 30 min. later it automatically stops.
Remark
When a room is spacious such as loft style or partitioned by accordion style curtain, the
ventilation volume is large and may not sometimes reach the set humidity.
. Humidifying time Approx. 70min. Decide time according to the outdoor temperature
and hose length set by remote controller.
. Drying time Approx. 2~10min. Decide time according to the hose length set by
remote controller.
’. Drying time Approx. 2~10min.
HUMID HEAT
operation
ON
OFF
Humidifying fan
and damper
ON
OFF
Hygroscopic
fan
ON
OFF
Heater
ON
OFF
Rotor ON
OFF
Approx. 1min
Approx. 3min
15 sec. 15 sec.
Dry mode
b'b'aaabb
(R9412)

SiBE12-908 Main Functions
Function and Control 13
Humidification
performance by
outdoor
temperature
The humidifying of this system is different from that of the normal humidifier. Therefore, the
humidifying performance varies with the outdoor temperature or installation condition.
Sufficient humidifying capacity may not be attained depending on the weather condition in
operation.
When the outdoor temperature lowers by 5°C, the humidifying capacity is decreased by about
15%.
When the outdoor humidity lowers by 20%, the humidifying capacity is decreased by about
20%.
Performance
compensation by
hose length
The max. piping length is 15 m, but the longer the length of the humidifying hose becomes, the
less the humidifying performance becomes.
Applicable hose (Hose diameter)
A : KPMH996A10S (I.D.25mm)
B : KPMH996A15S (I.D.30mm)
Hose length setting
a : ~3.0m, b : 3.1~4.0m, c : 4.1~6.0m, d : 6.1~8.0m,
e : 8.1~10.0m, f : 10.1m~
00246810
100
200
300
400
500
600
Humidifying Capacity (ml/h)
Outdoor temperature (ºC)
Humidifying hose length : 4.0m
87%RH
80%RH
70%RH
60%RH
50%RH
40%RH
30%RH
20%RH
Outdoor relative humidity
rated : 450ml/h
(Indoor 20ºCDB, Outdoor 7ºCDB/6ºCWB)
(R9413)
80.0%
85.0%
90.0%
95.0%
100.0%
105.0%
2435
61097 8 11 12 13 14 15
ab c d e f
B
A
Hose length (m)
Humidifying Capacity Ratio
(Piping length = 4m nominal)
(R9414)
Outdoor temp. 7˚CDB, 6˚CWB

Main Functions SiBE12-908
14 Function and Control
1.8 FRESH AIR SUPPLY VENTILATION
Operation
∗Refer to the operation manual for details.
Features The air supply ventilation system using only fresh air.
Any contaminated outdoor air is purified in two stages of indoor unit and outdoor unit. Fresh
air from which bacteria were removed is supplied into the room.
1. Purifying air in the outdoor unit
Thermal catalyst containing in the humidifying rotor analyzes unpleasant odor and also
removes exhaust gases (NOX, SOX).
Manganese catalyst used to treat the automotive exhaust gas is adopted for the thermal
catalyst.
2. Purifying air in the indoor unit
The air supply filter is placed at the humidifying hose outlet of the indoor unit side.
The air supply filter removes about 97% pollen and dust.
3. Controlling temperature
The fresh air passed through the air supply filter is cooled (or heated) in the indoor unit and
supplied into the room.
You can keep comfortable temperature and also replace air because the ventilation is
performed while temperature is controlled.
Pollen, exhaust gas and odor that could not be removed by the thermal catalyst and air supply
filter will be decomposed by photocatalyst.
FRESH AIR SUPPLY
VENTILATION
(R9425)
Outdoor
Indoor
Odor Pollen Dust
Indoor Unit
Fresh Air Fresh Air
Air Supply
Filter
Outdoor Unit
Indoor
Unit
2. Pollen and dust are
removed.
3. Temperature
Control
(R9415)
1. Unpleasant odors
are decomposed.
Unpleasant
Odors,
Pollen
Thermal
Catalyst

SiBE12-908 Main Functions
Function and Control 15
Ventilation System
The ventilation type is mainly divided into two. The convenient system is supply ventilation.
- Quiet because the ventilation fan is located in
the outdoor unit
- Energy saving system due to low heat loss
- The room temperature changes little because
no wind enters
- Operation noise is heard because the ventilation
fan is located in the room.
- Electricity charges are high because heat loss is
high.
- Draft enters easily to prevent comfortable
temperature from being kept.
Exhaust Ventilation
Air Supply Draft
Air
Supply Ventilation
Fresh
(R5979)

Main Functions SiBE12-908
16 Function and Control
1.9 2-AREA INTELLIGENT EYE
The following functions can be performed by a human motion sensor (INTELLIGENT EYE).
1. Reduces the capacity when there is no human in the room in order to save electricity.
(energy saving operation)
2. Divides the room into plural areas and detects existence of humans in each area.
Shifts the airflow direction to the area having no human automatically to avoid direct airflow
on humans.
Processing 1. Detection method by INTELLIGENT EYE
This sensor detects human motion by receiving infrared rays and displays the pulse wave
output.
A microcomputer in an indoor unit carries out a sampling every 20 msec. and if it detects 10
cycles of the wave in one second in total (corresponding to 20msec.× 10 = 200msec.), and
when the ON signal continues 3 sec., it judges human is in the room as the motion signal is
ON
INTELLIGENT EYE sensor is divided into 2 areas and detects humans in each area.
If the sensor detects the outputs 10 times/sec.
or more, it judges humans exist.
1sec
sampling (20msec)
High
Low
ON
OFF
Sensor output
(Human motion)
Human detection
signal
ON
OFF
Detection signal
from the sensor
(R2821)
(Condition of 10 times or more output)
(Continue 3 sec.) If the detection signal (ON) continues 3 sec. or more,
it judges humans exist.
Image of 2-AREA INTELLIGENT EYE
Top view
(R3854)
Indoor unit
Wall
Area AArea B
· A microcomputer judges human existence in
area A and B by the sensor signal from each

SiBE12-908 Main Functions
Function and Control 17
2. The motions in energy saving operation (for example: in cooling)
When a microcomputer doesn’t have a signal from the sensor in 20 minutes, it judges that
nobody is in the room and operates the unit in temperature shifted 2°C from the set
temperature. (Cooling/Dry : 2°C higher, Heating : 2°C lower and AUTO : according to the
operation mode at that time.)
★1 In case of FAN mode, the fan speed reduces by 60 rpm.
3. Airflow direction in 2-AREA INTELLIGENT EYE operation
Detection method: The opposite area of detected area is set as the target direction.
1. Detection signal ON in both area A and B: Shift the airflow direction to area B (left side)
2. Detection signal ON in area A: Shift the airflow direction to area B (left side)
3. Detection signal ON in area B: Shift the airflow direction to area A (right side)
4. Detection signal OFF in both area A and B: No change
* When the detection signal OFF in both area A and B, the unit starts energy saving operation.
Others The dry operation can not command the setting temperature with a remote controller, but
internally the set temperature is shifted by 1°C.
ON
OFF RESET.
Cooling : Set temp. + 2˚C
Heating : Set temp. - 2˚C
Human detection
signal
(From area A or B)
20 min. 20 min.
within 20
minutes.
ON
OFF
ON
OFF
Operation
OFF
Fan speed (1) Set speed - 60 rpm
Set speed Set speed
Set temp.
(R8350)
Remote controller
INTELLIGENT EYE
button
ON
OFF
INTELLIGENT EYE
LED
Top view
Wall
Indoor unit
Area A
Area B
Left Right
Human
(R3853)