Skyworth SKVH09A-A3NAI User manual

MODEL
SKVH09A-A3NA(I)
SKVH12A-A3NA(I)
(Refrigerant R32)

CONTENT
1. Summary and Features .............................................................................. 1
2. Safety Precautions...................................................................................... 2
3. Specifications.............................................................................................. 4
4. Function and Control.................................................................................. 5
4.1 Remote Control Operations ...................................................................................... 5
4.2 Description of Each Control Operation.................................................................. 11
5. Installation Manual.................................................................................... 13
............................................................. 13
5.2 Selection of the Installation Location .................................................................... 15
5.3 Connection Pipe Requirement................................................................................ 16
5.4 Electrical Requirement ............................................................................................ 16
5.5 Installation of Indoor Unit........................................................................................ 17
6. Construction Views................................................................................... 20
7. Exploded Views and Parts List ................................................................ 21
8. Schematic Diagram................................................................................... 23
8.1 Electrical Wiring ....................................................................................................... 23
8.2 PCB Printed Diagram............................................................................................... 24
9. Troubleshooting ........................................................................................ 25
9.1 Error Code List ......................................................................................................... 25
9.2 Procedure of Troubleshooting................................................................................ 28
9.3 Troubleshooting for Normal Malfunction............................................................... 40

1
Summary and Features
1. Summary and Features
Indoor Unit
RA1A
Remote Controller
SKVH09A-A3NA(I)
SKVH12A-A3NA(I)
TIMERTIMER
ON
LIGHTECO
QUIET
CLOCK
I FEEL
OFF
HEALTH
CLEANTEMP
MODE FAN
TURBO SLEEP
Cooling mode Heating mode
ON/OFF
Receiving window
Power display
Temp. display
Horizontal louver
Filter
Air inlet
Air outlet
Panel
Air outlet
Display

2
Safety Precautions
2. Safety Precautions
Installing, starting up, and servicing air conditioner can be hazardous due to system pressure, electrical components, and equipment
location, etc.Only trained, qualied installers and service personnel are allowed to install, start-up, and service this equipment.Untrained
personnel can perform basic maintenance functions such as cleaning coils. All other operations should be performed by trained
service personnel.When handling the equipment, observe precautions in the manual and on tags, stickers, and labels attached to the
equipment. Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and re extinguisher nearby when
brazing.Read the instructions thoroughly and follow all warnings or cautions in literature and attached to the unit. Consult local building
codes and current editions of national as well as local electrical codes.
Recognize the following safety information:
◆ Make sure the outdoor unit is installed on a stable, level surface with no accumulation of snow, leaves, or trash beside.
◆ Make sure the ceiling/wall is strong enough to bear the weight of the unit.
◆ Make sure the noise of the outdoor unit does not disturb neighbors.
◆ Follow all the installation instructions to minimize the risk of damage from earth quakes, typhoons or strong winds.
◆ Avoid contact between refrigerant and re as it generate spoisonous gas.
◆ Apply specied refrigerant only. Never have it mixed with any other refrigerant. Never have air remain in the refrigerant line as it may
lead to rupture and other hazards.
◆ Make sure no refrigerant gas is leaking out when installation is completed.
◆ Should there be refrigerant leakage, the density of refrigerant in the air shall in no way exceed its limited value, or it may lead to
explosion.
◆ Keep your ngers and clothing away from any moving parts.
◆ Clear the site after installation. Make sure no foreign objects are left in the unit.
◆ Always ensure effective grounding for the unit.
Incorrect handling could result inpersonal injury or death. Incorrect handling may result inminor injury,or damage to product
or property.
Warning Caution
Warning Caution
All electric work must be performed by a licensed technician
according to local regulations and the instructions given in this
manual.
Before installing, modifying, or servicing system, mainelectrical
disconnect switch must be in the OFF position.There may be
more than 1 disconnect switch. Lock out and tag switch with a
suitable warning label.
Never supply power to the unit unless all wiring and tubing are
completed, reconnected and checked.
This system adopts highly dangerous electrical voltage.Incorrect
connection or inadequate grounding can cause personal injury
or death. Stick to the wiring diagram and all the instructions
when wiring.
Have the unit adequately grounded in accordance with local
electrical codes.
Have all wiring connected tightly. Loose connection may lead to
overheating and a possible re hazard.
All installation or repair work shall be performed by your dealer
or a specialized subcontractor as there is the risk of re, electric
shock, explosion or injury.
Never install the unit in a place where a combustible gas might
leak, or it may lead to re or explosion.
Make a proper provision against noise when the unit is installed
at a telecommunication center or hospital.
Provide an electric leak breaker when it is installed in a watery
place.
Never wash the unit with water.
Handle unit transportation with care. The unit should not be
carried by only one person if it is more than 20kg.
Never touch the heat exchanger ns with bare hands.
Never touch the compressor or refrigerant piping without
wearing glove.
Do not have the unit operate without air lter.
Should any emergency occur, stop the unit and disconnect the
power immediately.
Properly insulate any tubing running inside the room to prevent
the water from damaging the wall.

3
Safety Precautions
Please read this operating manual carefully before operating the unit.
Appliance lled with ammable gas R32.
Before use the appliance, read the owner's manual rst.
Befoer install the appliance,read the installation manual rst.
Befoer repair the appliance ,read the service manual rst.
The gures in this manual may be different with the material objects ,please refer to the material objects for reference.
To realize the function of the air conditioner unit, a special refrigerant circulates in the system.The used refrigerant is the fluoride
R32,which is specially cleaned.The refrigerant is flammable and inodorous. Furthermore,it can leads to explosion under certain
condition.But the ammability of the refrigerant is very low. It can be ignited only by re.
Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the ozonosphere.The influence upon the
greenhouse effect is also lower. R32 has got very good thermodynamic features which lead to a really high energy efciency. The units
therefore need a less lling.
The Refrigerant
WARNING:
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacture.Should repair
be necessary, contact your nearest authorized Service Center.
Any repairs carried out by unqualied personnel may be dangerous.
The appliance shall be stored in a room without continuously operating ignition sources.
(For example: open ames, an operating gas appliance or an operating electric heater.)
Do not pierce or burn.
Appliance shall be installed, operated and stored in a room with a oor area larger than
"X"m2(see table 1).(only applies to appliances that are not xed appliances)
Appliance lled with ammable gas R32. For repairs,strictly follow manufacturer's
instructions only.
Be aware that refrigerants not contain odour.
Read specialist’s manual.

4
Specifications
3. Specifications
Indoor Unit Specifications
Model -- SKVH09A-A3NA(I) SKVH12A-A3NA(I)
Product Code -- KEZ001N0010 KEZ001N0020
Power Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases -- 1 1
Power Supply Mode -- outdoor outdoor
Cooling Capacity W 2600 3500
Cooling Capacity Btu/h 8871 11942
Heating Capacity W 2600 3500
Heating Capacity Btu/h 8871 11942
Cooling Power Input W 90 90
Heating Power Input W 90 90
Cooling Current A 0.4 0.4
Heating Current A 0.4 0.4
Air Flow Volume m3/h 650 650
Application Area m212-18 19-29
Fan Type -- Centrifugal Centrifugal
Fan Diameter Length(D×L) mm φ370/80 φ370/80
Cooling Speed r/min 700/650/600/550/500 700/650/600/550/500
Heating Speed r/min 700/650/600/550/500 700/650/600/550/500
Fan Motor Power Output W 30 30
Evaporator Form -- Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm φ7 φ7
Evaporator Pipe Diameter inch φ0.275 φ0.275
Evaporator Row-fin Gap mm 1.4 1.4
Evaporator Row-fin Gap inch 0.055 0.055
Evaporator Coil Length (L×D×W) mm 530×25.4×400 530×25.4×400
Evaporator Coil Length (L×D×W) inch 20.8x1.0x15.7 20.8x1.0x15.7
Set Temperature Range ℃16-31 16-31
Sound Pressure Level dB (A) 42 42
Dimension (W×D×H) mm 700×215×600 700×215×600
Dimension (W×D×H) inch 27.6×8.5×23.6 27.6×8.5×23.6
Dimension of Carton Box (W×D×H) mm 775×275×680 775×275×680
Dimension of Carton Box (W×D×H) inch 30.5×10.8×26.8 30.5×10.8×26.8
Dimension of Package(W×D×H) mm 778×278×683 778×278×683
Dimension of Package(W×D×H) inch 30.6×10.9×26.9 30.6×10.9×26.9
Net Weight kg 14 14
Gross Weight kg 16 16
Piping Connection Gas mm φ9.52 φ9.52
Piping Connection Liquid mm φ6 φ6
Set Temperature Range ℉60.8-87.8 60.8-87.8

5
Function and Control
4. Function and Control
4.1 Remote Control Operations
After connecting the power, the air conditioner will make a sound.
Power indicator is ON. After that, you can operate the air conditioner by using remote controller.
Under on status, pressing the button on the remote controller, the signal icon " "on the display of remote controller will blink once
and the air conditioner will give out a “de” sound, which means the signal has been sent to the air conditioner.The display will show the
corresponding set function icons.
Under off status, light and clock icon will be displayed on the display of remote controller (If timer on, timer off and light functions are
set, the corresponding icons will be displayed on the display of remote controller at the same time).
TIMERTIMER
ON
LIGHTECO
QUIET
CLOCK
I FEEL
OFF
HEALTH
CLEANTEMP
MODE FAN
TURBO SLEEP
Turbo mode
Health function
Send signal
Set fan speed
Child lock
Sleep mode
Up&down swing
Light
Temperature diaplay
Auto mode
Cool mode
Dry mode
Fan mode
Heat mode
Set time
Fan button
+ button
Left&right swing button
Light button
Timer off button
Timer on button
Health button
Clean button
Temp button
I feel
Left&right swing
Up&down swing button
Turbo button Sleep button
Clock button
ECO button
I feel button
Quiet button
- button
ON/OFF button
Mode button
Quiet mode
Clean mode
ECO mode
Temp. display type
Outdoor ambient temp.
Indoor ambient temp.

6
Function and Control
MODE button
Press this button to select your required operation mode.
●
When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can’t be adjusted
and will not be displayed as well. Press "FAN" button can adjust fan speed. Press " " or " " button can adjust fan blowing angle.
● After selecting cool mode, air conditioner will operate under cool mode. Press "+" or "-" button to adjust set temperature. Press "FAN"
button to adjust fan speed. Press " " or " " button to adjust fan blowing angle.
●
When selecting dry mode, the air conditioner operates at fan1, fan speed can’t be adjusted. Press " " or " " button to adjust fan
blowing angle.
● When selecting fan mode, the air conditioner will only blow fan, no cooling and no heating. Press "FAN" button to adjust fan speed.
Press " " or " " button to adjust fan blowing angle.
● When selecting heat mode, the air conditioner operates under heat mode. Press "+" or "-" button to adjust set temperature. Press
"FAN" button to adjust fan speed. Press " " or " " button to adjust fan blowing angle. (Cooling only unit won’t receive heat mode
signal. If setting heat mode with remote controller, press "ON/OFF" button can’t start up the unit).
Note:
● For preventing cold air, after starting up heating mode, indoor unit will delay 1~5 minutes to blow air (actual delay time is depend on
indoor ambient temperature).
● Set temperature range from remote controller: 16~31°C; Fan speed: auto, fan1, fan2 , fan3 , fan4, fan5, stepless speed.
Auto Cool Dry Fan Heat
ON/OFF button
Press this button can turn on or turn off the air conditioner.
FAN button
Pressing this button can set fan speed circularly as: auto (AUTO), fan1( ), fan2 ( ) ,fan3 ( ) , fan4 ( ),
fan5 ( ), stepless speed.
Note:
● In AUTO speed, air conditioner will select proper fan speed automatically according to ambient temperature.
● Fan speed under dry mode is fan1.
●After entering the stepless speed mode, users can adjust the fan speed according to the button "+" or "-".
button
Note:
●
When selecting " " with remote controller, it’s auto swing. Up&down swing louver of air conditioner will swing up&down automatically
at the maximum angle.
● When selecting " , , , , " with remote controller swing.
Up&down swing louver of air conditioner
will stop at that position as shown by the icon to swing.
● Press this button the up&down swing function can be started and canceled. The remote controller defaults to static swing condition.
●
Press "MODE" button and " " button at the same time when remote controller OFF to switch between simple swing and static swing.
● In static swing condition, pressing this button, the swing angle of up&down swing louver changes as below:
fan1 fan2 fan3
fan4fan5
stepless speed
AUTO
No display

7
Function and Control
button
● Press this button the left&right swing function can be started and canceled. The remote controller defaults to static swing condition.
● Press "MODE" button and " " button at the same time at remote controller OFF to switch between simple swing and static swing.
●
In static swing condition, pressing this button, the swing angle of left&right swing louver changes as below:
+ and - button
Press "+" or "-" button once to increase or decrease 1°C of set temperature. Holding "+" or "-" button, set temperature on remote
(Temperature can’t be adjusted under auto mode)
● When setting TIMER ON, TIMER OFF or CLOCK, press "+" or "-" button to adjust time.
(Refer to CLOCK, TIMER ON, TIMER OFF buttons)
TURBO button
Press this button to turn on or turn off the TURBO function in cool、heat、fan mode.
Note:
● Press "QUIET" or "FAN" button the unit will quit this function.
● This function is no use in auto mode or dry mode.
●
When selecting " " with remote controller, it’s auto swing. Left&right swing louver of air conditioner will swing left&right automatically
at the maximum angle.
●
When selecting " , , , , ,
will stop at that position as shown by the icon to swing.
● When selecting " ", it’s the circulating swing.
Left&right swing louver of air conditioner will swing circularly according to the angle
as shown by the icon.
Note:
There is no this function for the units. If press this button, the main unit will sound, but it also runs under original status.
HEALTH button
Press this button to turn on or turn off the health function.
Note:This function is not available for some models.
SLEEP button
Press this button to turn on or turn off the SLEEP function under cool、heat、dry mode.
Note:
● This function is off as defaulted after power on.
● It will be cleared after changing mode.
● It is no use under "FAN" mode and "AUTO" mode.
No display
I FEEL button
Press this button to start I FEEL function and " " will be displayed on the remote controller. After this function is set, the remote
controller will send the detected ambient temperature to the indoor unit and the unit will automatically adjust the indoor temperature
according to the detected temperature. Press this button again to close I FEEL function and " " will disappear.
Note:
remote controller near the object of high temperature or low temperature in order to avoid detecting inaccurate ambient temperature.

8
Function and Control
CLOCK button
Press this button to set clock time. " "and " " icon on remote controller will blink. Press "+" or "-" button within 5s to set clock
time. Each pressing of "+" or "-" button, clock time will increase or decrease 1 hour. Press this button again, " " and " " icon on
remote controller will blink. Press "+" or "-" button within 5s to set clock time. Press this button another time, " " and " " icon
on remote controller will blink. Press "+" or "-" button within 5s to set clock time. If hold "+" or "-" button, clock time will change quickly.
" icon stops blinking.
Note:
● Clock time adopts 24-hour mode.
●The interval between two operation can’t exceeds 5s. Otherwise, remote controller will quit setting status.
Operation for TIMER ON/TIMER OFF is the same.
TIMER ON button
This button can set the time for timer on. After pressing this button, " " icon disappears, "ON" and " " icon on remote controller
blinks. Press "+" or "- "button within 5s to set "TIMER ON" time. Each pressing of "+" or "-" button, the time will increase or decrease 1
hour. Press this button again, "ON" and " " icon on remote controller will blink. Press "+" or "-" button within 5s to set the time.
Press this button another time, "ON" and " " icon on remote controller will blink. Press "+" or "-" button within 5s to set the time.
Hold "+"
or "-" button, the time will change quickly until reaching your required time. Press "TIMER ON"
stop blinking. " " icon resumes displaying.
Cancel TIMER ON
Under the condition that TIMER ON is started up, press "TIMER ON" button to cancel it.
TIMER OFF button
This button can set the time for timer off. After pressing this button, " " icon disappears, "OFF" and " " icon on remote controller
blink. Press "+" or "-" button within 5s to set "TIMER OFF" time. Each pressing of "+" or "-" button,the time will increase or decrease 1
hour. Press this button again, "OFF" and " " icon on remote controller will blink. Press "+" or "-" button within 5s to set the time.
Press this button another time, "OFF" and " " icon on remote controller will blink. Press "+" or "-" button within 5s to set the time.
will stop blinking. " " icon resumes displaying.
Cancel TIMER OFF
Under the condition that TIMER OFF is started up, press "TIMER OFF" button to cancel it.
TEMP button
By pressing this button, you can see indoor set temperature, indoor ambient temperature or outdoor ambient temperature on indoor
unit’s display. The setting on remote controller is selected circularly as below:
● When selecting "no display" on the remote controller, the temperature indicator which on the indoor units will display the set
temperature.
● When selecting " " with remote controller, temperature indicator on indoor unit displays indoor ambient temperature.
● When selecting " " with remote controller, temperature indicator on indoor unit displays outdoor ambient temperature.
Note:
Outdoor temperature display is not available for some models. At that time, indoor unit receives " " signal, it displays indoor set
temperature.
● Press this button to start or cancel clean function.
● It is unable to set clean function when the unit is on; if the air conditioner runs in cool or dry mode before turning off, press "CLEAN"
button and show " " then the clean function is on; press "CLEAN" button again, " " disappeared, then the clean function is off,
or running 10 mins in clean function then turn off automatically.
●The clean function can not be set and displayed when the air conditioner is in auto, fan and heat mode before turn off.
CLEAN button
No display

9
Function and Control
Function introduction for combination buttons
Child lock function
Press "+" and "-" simultaneously to turn on or turn off child lock function. When child lock function is on, " " icon is displayed on
remote controller. If you operate the remote controller, the " " icon will blink three times without sending signal to the unit.
Temperature display switchover function
In the off mode, press "-" and "MODE" buttons simultaneously to switch temperature display between °C and °F.
QUIET button
Press this button to turn on or turn off the QUIET function in cool、heat、auto mode.
Note:
● Press "TURBO" or "FAN" button the unit will quit this function.
●This function is no use in fan mode or dry mode.
ECO button
In cool mode, press "ECO" button and the unit will operate under ECO mode.
Note:
● Remote controller displays " ".
●Air conditioner will operate at auto speed. Set temperature can’t be adjusted.
● Under cool mode, sleep function can not work with ECO mode together at the same time.
● Change mode will exit the ECO mode.
LIGHT button
Press this button can turn off the light for indoor unit’s display. " " icon on remote controller will disappear.Press this button again to
turn on the light for indoor unit’s display. " " icon on remote controller will be displayed.
In the heating mode, press "SLEEP" and "TURBO" buttons together for 3s would start or cancel the Timing defrost.
Timing defrost
The minimum cooling temperature setting
In the off mode,pressing "TEMP"and "-" button at the same time,the LCD will display the minimum cooling temperature.The default
temperature is 16°C and you can adjust the temperature with "+" or "-" from 16°C to 31°C, 3 seconds later it will return to the standby
mode.
In the off mode,pressing "TEMP" and "+" button at the same time,the LCD will display the maximum heating temperature.The default
temperature is 31°C and you can modulate the temperature with "+" or "-" from 16°C to 31°C, 3 seconds later it will return to the
standby mode.
The maximum heating temperature setting
Press the "FAN" and "MODE" 3s at the same time in heating mode,it will enter or exit the manually defrost.Remote controller will display
"dF" 5s,and it will show the setting temperature after 5s.
Manually defrost
Repowered within 5mins, set 16 degree under cooling mode, then press the "TURBO" button 6 times within 3s, will enter this function.
Collecting freon

10
Function and Control
● During operation, point the remote control signal sender at the receiving window on indoor unit.
● The distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between
them.
to indoor unit during operation.
● Replace new batteries of the same model when replacement is required.
● When you don’t use remote controller for a long time, please take out the batteries.
● If the display on remote controller is fuzzy or there’s no display, please replace batteries.
NOTE:
Replacement of Batteries
1. Press the back side of remote controller marked with "
arrow direction.
2. Installation two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar are correct.
3. Reinstall the cover of battery box.
● In heating mode, pressing "Mode" and "+" button at the same time will enter/exit the low temperature heating function.
● "LA" would be showed on the remote controller after entered into the low temperature heating funtion.
● When switching from one mode to another mode, low temperature heating function was canceled. Turn off and then turn on air
conditioner that will remain the low temperature heating function. After powered on, the low temperature heating mode was default to
off status.
● In the low temperature heating mode, "Sleep" and "Low temperature heating" function cannot start at same time.When low
temperature heating mode has already started,
meanwhile you press the "SLEEP" button, the air conditioner will exit low temperature
heating
mode and enter the sleep mode. Vice versa.
Note:
1. In the low temperature heating mode, the fan speed was default to Auto and non-ajusatable.
2. In the low temperature heating mode, "Turbo" and "Quiet" can't be set. If enter the low temperature heating mode, the turbo and quiet
function that started before will be canceled.
As well as when exit the low temperature heating mode, it will not resume .
3. When exit from the low temperature heating mode, the speed and temperature will turn into the original condition before it started.
4. You can set up other function.
Low temperature heating function setting
Setting the dehumidifying mode with 30 degree after the unit is powered on within 60s.And then press "LIGHT" →"SLEEP" →"LIGHT"
→"SLEEP",it could change the memory to not memory function.The light blink and show the error code 3s.
Memory setting
Press "light" and "-" button together for 3s,It could enter or exit this function.It will show the error code when this function is on.
Display by remote controller

11
Function and Control
4.2 Description of Each Control Operation
4.2.1 The mainboard design with below function
(1) Auto (2) Cooling (3) Dehumidifying (4) Air fan (5) Heating
4.2.2 Control
Indoor fan(Quiet、speed 1、speed 2、speed 3、speed 4、speed 5、Turbo), left and right louver, up and down louver, buzzer, display,
outdoor electric heater(option), outdoor power, healthy(option).
4.2.3 Basis control function
Cooling mode
(1) Setting Temp 16-31 degree,the indoor fan and louver run as the original mode.
(2) The indoor will run as original mode if the outdoor does not work,and the indoor will show error code.
Fan
(1) Setting Temp 16-31 degree,the indoor fan and louver run as the original mode.
(2) The indoor will run as original mode if the outdoor does not work,and the indoor will show error code.
Heating mode
(1) Setting temperature range 16-31 degree.
f.
(3) Indoor power light blink and then indoor fan stop after unit entering defrost mode.
(4) Indoor blow hot air one minute if outdoor is malfunction.
(5) Indoor blow hot air 10 minutes after turn off unit when indoor fan is running.
4.2.4 Auto mode
(1) When environment temperature is equal or above 26 degree,and setting the cooling mode,the setting temperature will reach 25
degree.
(2) When the environment temperature i is equal or below 19 degree plus additional temperature,it will run in heating mode,and the
setting temperature reach 20 degree at that time.
entering auto mode.It will run in original mode if it change from cooling and heating mode.If original mode is dehumidifying,it will be
in airfan after change into auto mode.
4.2.5 Protect
(1)Anti cold air
The louver will be in horizontal level when evaporator temperature is too low,and indoor fan does not work or run in low speed.
(2)Blow hot air
Indoor will run in few minutes before turn off when turn off in heating or indoor temperature above environment temperature.
(3)Sensor malfunction
If the environment sensor or pipe sensor AD is above or equal 250 5s continually or the environment sensor or pipe sensor AD is below
5 when the unit is on ,it means sensor malfunction.
(4)Motor blockage
fan and louver stop running.Indoor will show error code.
(5)Jumper malfunction
Un-install the jumper
(6)Communication malfunction
When the unit is running except for airfan mode,outdoor and indoor can not communicate 3 minutes.It will show error code.
(7)Defrost
When outdoor condensing defrost,it will start defrost mode.
(8)Manually Defrost
Press the "FAN" and "MODE" 3s at the same time in heating mode,it will enter or exit the manually defrost,and indoor will buzz.

12
Function and Control
4.2.6 Other Function
(1) Auto button
when you press this button,it will enter auto mode,indoor motor in auto fan speed,Indoor fan run and louver motor stop. Press the auto
button,unit will be off.
(2) Filter cleaning
(3) Health
Indoor healthy function start when push healthy button.
(4) Dry
Unit will run in cooling 10 min after set up dry function.
(5) Saving energy
Indoor will show in ECO after unit run in energy saving mode.
(6) Low temperature heating
Press "MODE" and "+" button at the same time in heating mode,it will show LA.
(7) Environment temperature
push temperature button,it will show environment temperature 5s and the setting temperature.
(8) Outdoor power
Power on,outdoor power is off.
(9) When unit is on except for fan mode,outdoor power supply input high frequency.
(10) Entering off mode or fan mode,outdoor power is off after 4 minutes.
(11) 1W Standby.
4.2.7 Display
(1) Basis display,Power on,it maintain 2s-3s display,and then power light is on.
(2) The running light is on when remote controller turn on unit,and indoor show the running mode.
(3) If turn off the light button,and all display is off.
(4) It displays as original mode after setting sleeping function.

13
Installation Manual
5. Installation Manual
All the work men who are engaging in the refrigeration system should bear thevalid certification awarded by the authoritative
organization and the qualificationfor dealing with the refrigeration system recognized by this industry. If it needsother technician
to maintain and repair the appliance, they should be supervisedby the person who bears the qualification for using the flammable
refrigerant.It can only be repaired by the method suggested by the equipment’s manufacturer.
5.1.2 Installation notes
1.The air conditioner is not allowed to use in a room that has g heater).
2.It is not allowed to drill hole or burn the connection pipe.
3.The air conditioner must be installed in a room that is larger than the minimum roomarea.
The minimum room area is shown on the nameplate or following table 1.
4.Leak test is a must after installation.
Minimum
room area
( m2 )
Charge amount (kg) ≤1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
/ 14.5 16.8 19.3 22.0 24.8 27.8 31.0 34.4 37.8 41.5 45.4 49.4 53.6
window mounted / 5.2 6.1 7.0 7.9 8.9 10.0 11.2 12.4 13.6 15 16.3 17.8 19.3
wall mounted / 1.6 1.9 2.1 2.4 2.8 3.1 3.4 3.8 4.2 4.6 5 5.5 6.0
ceiling mounted / 1.1 1.3 1.4 1.6 1.8 2.1 2.3 2.6 2.8 3.1 3.4 3.7 4.0
5.1.3 Maintenance notes
Check whether the maintenance area or the room area meet the requirement of the nameplate.
—It’s only allowed to be operated in the rooms that meet the requirement of the nameplate.
Check whether the maintenance area is well-ventilated.
—The continuous ventilation status should be kept during the operation process.
Check whether there is fire source or potential fire source in the maintenance area.
—
Check whether the appliance mark is in good condition.
—Replace the vague or damaged warning mark.
5.1.4 Welding
If you should cut or weld the refrigerant system pipes in the process of maintaining, please follow the steps as below:
1. Shut down the unit and cut power supply.
2. Eliminate the refrigerant.
3. Vacuuming.
4. Clean it with N2 gas.
5. Cutting or welding.
6. Carry back to the service spot for welding.
vacuum pumpand it’s well-ventilated.
Table 1:Minimum room area (m2)
5.1.5 Filling the refrigerant
ferent kinds of refrigerant won’t contaminate with each
other.
removed.
5.1.6 Safety instructions for transportation and storage
.
3.According to the local rules and laws.

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Installation Manual
1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the
specified refrigerant.
— Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture,
resulting in injury.
2. When installing or moving this unit, do not charge the refrigerant which is not comply with that on the nameplate or
unqualified refrigerant.
— Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or even series safety accident.
3. When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in cooling
mode.Then, fully close the valve at high pressure side (liquid valve).About 30-40 seconds later, fully close the valve at low
pressure side (gas valve), immediately stop the unit and disconnect power. Please note that the time for refrigerant
recovery should not exceed 1 minute.
— If refrigerant recovery takes too much time, air may be sucked in and cause pressure rise or compressor rupture, resulting in injury.
4. During refrigerant recovery, make sure that liquid valve and gas valve are fully closed and power is disconnected before
detaching the connection pipe.
— If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause
pressure rise or compressor rupture, resulting in injury.
5. When installing the unit, make sure that connection pipe is securely connected before the compressor starts running.
— If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause
pressure rise or compressor rupture, resulting in injury.
6.
— If there leaked gas around the unit, it may cause explosion and other accidents.
7. Do not use extension cords for electrical connections. If the electric wire is not long enough, please contact a local service
center authorized and ask for a proper electric wire.
8. Use the specified types of wires for electrical connections between the indoor and outdoor units. Firmly clamp the wires
so that their terminals receive no external stresses.
—
WARNING
To ensure safety, please be mindful of the following precautions.
5.1.6 Installation prepare

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Installation Manual
5.2 Selection of the Installation Location
WARNING!
CAUTION!
or fall off.
● Do not install where there is a danger of combustible gas leakage.
● Children under 10 years old must be supervised not to operate the unit.
2 (see table 1).
2. Make sure that the installation meets the requirement of the schematic diagram of installation spaces.
3. Select a location where the condensation water can be dispersed easily and won't affect other people.
4. The horizontality of the installation place should be guaranteed.
5. Select the place where is easy to drain out the condensate water, and connect with outdoor unit.
6. Select a location which is out of reach for children.
7.The application must be installed 0.1 to 0.2m above floor. Please try your best to keep away from flourescent lamp.
8. The location should be ableto withstand the weight of indoor unit and won't increase noise and vibration.
9. An indoor unit should not have a height difference greater than 10 m with an outdoor unit and the connection pipe should not be
more than 15 m long.
Note:
There will be large amount of greasy dirt accumulated on the fan, heat exchanger and water pump located in the dinning room and
kitchen, which would reduce the capacity of the heater exchanger, lead to leakage and abnormal operation of the water pump.
Decide the installation location with the customer as follows:
Indoor Unit
damages of people andmaterial. Details to this refrigerant are found in chapter "refrigerant".
At least 50cm
At least 50cm
Atleast 7 mc0
Embedded Wall mounted

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Installation Manual
CAUTION!
The maximum length of the connection pipe is listed in the table below. Do not place the
units between which the distance exceeds the maximum length of the connection pipe.
Model
Size of Fitting Pipe (Inch)
Max.Pipe Length (m) Max.height Difference between Indoor Unit
and Outdoor Unit (m)
Liquid Gas
SKVH09A-A3NA(I) 1/4 3/8 20 15
SKVH12A-A3NA(I) 1/4 3/8 20 15
Note:
1. The connection pipe should be insulated with proper water-proof insulating material.
2. The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand the pressure of 6.0 MPa.The longer the
connecting pipe, the lower the cooling and heating effect performs.
5.3 Connection Pipe Requirement
Model Power Supply Capability of Air Switch
(A)
Minimum Sectional Area of Power Cable and Earth
line (mm2)
SKVH09A-A3NA(I)
220-240V~,50Hz
16 1.5
SKVH12A-A3NA(I) 16 1.5
5.4 Electrical Requirement
Electric Wire Size and Fuse Capacity.
Note:
1.The fuse is located on the main board.
2. Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units.The appliance must be positioned so
that the plug is accessible.
amps) of the unit.
copper cable, consisting of PE insulated wires and a PVC cable jacket) used at 40°С and resistible to 90°С(see IEC 60364-5-52).
6. Take 2 pieces of power cord of 0.75mm2as the communication lines between indoor and outdoor unit, with their longest lengths of
50m. Please select the appropriate line length as per the actual installation conditions. The communication lines can not be twisted
together. For the unit, it’s recommended to use 8m long communication line.
7. Take 2 pieces of power cord of 0.75mm2as the communication lines between the wired controller and the indoor unit, with their
longest lengths of 30m. Please select the appropriate line length as per the actual installation conditions. The communication lines
can not be twisted together. It’s recommended to use 8m long communication line.
8.
The wire size of the communication line should be no less than 0.75mm
2
. It’s recommended to take 0.75mm2power cords as the
communication line.

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Installation Manual
1. Recommend the installation location to the client and then confirm it with the client.
2. Installing a hook
(1) Attach an installation cardboard horizontally to a wall.
(2) Make a mark on the wall according to the hole location indicated on the installation cardboard.
(3) On the top mounting holes, secure two hooks in locations 1 and 2.
(4) After identifying the installation location, thread two screws into holes on the left and right sides.
5.5 Installation of Indoor Unit
Installing the indoor Unit
Hook
700mm(Product dimensions)
Floor
Space to the floor
100~200mm
600mm(Product dimensions)
510mm(Minimum height of hanging wall plate)
3. Open piping hole
(1) Open a piping hole with the diameter of Φ55 on the selected outlet pipe position. In order to
drain smoothly, slant the piping hole on the wall slightly downward to the outdoor side with
the gradient of 5-10°.
(2) To prevent damage to the pipes and cables passing through a wall hole and also to avoid
damage caused by rats in a hollow wall, install a wall pipe. Seal the wall hole on the inner
and outer sides with sealant.
(3) The highest point of the wall hole cannot exceed the bottom of a wall-mounted AC to
prevent water leakage.
Notice:
●Pay attention to dust prevention and take relevant safety measures when opening the hole.
●The plastic expansion particles are not provided and should be bought locally.
Indoor Outdoor
5~10° Φ55
4. Identifying a pipe outlet
Pipes can be led out from the right, rear right, left or left rear side. When pipes (cables) are routed on the right or left side, cut off the
lower parts remaining on the bottom of the case and the side panel of the AC as required.
●Cut off lower part 1 only when a power cable is led out.
●Cut off lower parts 1 and 2 when both the drain pipe and power cable are led out.
●Cut off lower parts 1, 2, and 3 when the connection pipe, drain pipe and power cable are led out.
Proceed as follows when cutting off the lower parts:
(1) Open the panel cover and remove the 4 screws on the panel. Remove the panel in the direction as indicated by the arrow.
Panel cover
Panel
Screw
A

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Installation Manual
5. Conect the pipe of indoor unit
(1) Aim the pipe joint at the corresponding bellmouth.
(2) Pretightening the union nut with hand.
(3) Adjust the torque force by referring to the following sheet. Place the open-end wrench on the pipe joint and place the torque
wrench on the union nut. Tighten the union nut with torque wrench.
(2) First, remove the screws on the upper panel to remove the upper panel, then remove the screws on the left and right panels to
remove the left and right panels.
Upper panel
Screw hole
Left side panel
Right side
panel
Bottom shell
Right Side Panel
Lower part 1
Lower part 2
Lower part 3
union nutpipe joint pipe
torque wrench
open-end
wrench
indoor pipe
pipe
union nut
Hex nut diameter Tightening torque (N.m)
Φ 6 15~20
Φ 9.52 30~40
Φ 12 45~55
Φ 16 60~65
Φ 19 70~75
(4) Wrap the indoor pipe and joint of connection pipe with insulating pipe, and then wrap it with tape.
insulating pipe
6. Install drain hose
(1) Connect the drain hose to the outlet pipe of indoor unit.
(2) Bind the joint with tape.
drain hose
tape
outlet pipe
drain hose
insulating pipe
●Add insulating pipe in the indoor drain hose in order to prevent condensation.
●The plastic expansion particles are not provided.
6. Connect wire of indoor unit
(1) Open the panel,Pay attention to up and down joint when you take off four screw in the cover,remove the screw on the wiring
cover and then take down the cover.
(2) Make the power connection wire go through the cable-cross hole at the back of indoor unit and then pull it out from the front
side.
(3) Remove the wire clip,connect the power connection wire to the wiring terminal according to the color; tighten the screw and
then fix the power connection wire with wore clip.
(4) Make the power connection wire go through the cable-cross hole at the back of indoor unit and then pull it out from the front
side.