aiwa ACD-18KBTU Mini Split Air Conditioner Instruction Manual

aiwa ACD-18KBTU Mini Split Air Conditioner

Product Information

• Product Name: ACD-18KBTU
• Product Type: Mini-Split Air Conditioner
• Features: Inverter with Smart Control & Remote Control

Product Usage Instructions

1. Read the user manual before installing and using the appliance.
2. Ensure that children do not have access to the working area during installation of the indoor and outdoor units to prevent accidents.
3. Firmly fix the base of the outdoor unit to ensure stability.
4. Avoid air entering the refrigerant system and check for refrigerant leaks when moving the air conditioner.
5. After installation, perform a test cycle and record the operating data.
6. Protect the indoor unit with a fuse or overload protection device suitable for the maximum input current.
7. Check that the mains voltage matches the rating plate and keep the switch or power plug clean. Ensure proper contact when inserting the power plug into the socket to avoid electric shock or fire risks.
8. If the socket is not suitable for the plug, have the socket changed.
9. The appliance must be fitted with means for disconnection from the supply mains in accordance with wiring rules.
10. The air conditioner should be installed by professional or qualified persons.
11. Avoid installing the appliance less than 50 cm away from inflammable substances or pressurized containers.
12. In areas without ventilation, take precautions to prevent leaks of refrigerant gas that could create a fire hazard.
13. Dispose of packaging materials in separate waste bins. Properly dispose of the air conditioner at the end of its useful life at a special waste collection center.
14. Follow the instructions in the user manual for correct usage of the air conditioner. Use common sense and caution during installation, operation, and maintenance.
15. Ensure compliance with applicable national regulations during installation.
16. Disconnect all power circuits before accessing the terminals.
17. Install the appliance in accordance with national wiring regulations.
18. This appliance can be used by children aged 8 years and above, as well as individuals with reduced physical, sensory, or mental capabilities or lack of experience.

ACD-18KBTU
INSTRUCTION MANUAL , INSTALLATION, FEATURES EN GEBRAUCHSANWEISUNG, INSTALLATION, AUSSTATTUNG DE MANUAL DE INSTRUCCIONES , INSTALACIÓN, CARACTERÍSTICAS ES MANUEL D’INSTRUCTION, INSTALLATION, CARACTÉRISTIQUE FR MANUALE DI ISTRUZIONI, INSTALLAZIONE, CARATTERISTICA IT
INSTRUKCJA OBSLUGI, INSTALACJA, FUNKCJE PL
ACD-18KBTU
MINI-SPLIT AIR CONDITIONER
INVERTER WITH SMART CONTROL & REMOTE CONTROL

The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. The shape and position of buttons and indicators may vary according to the model, but their function are the same.

SAFETY PRECAUTIONS

SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLER
1. Read this guide before installing and using the appliance.
2.During the installation of the indoor and outdoor units, access to the working area should be forbidden to children. Unforeseeable accidents could happen.
3. .Make sure that the base of the outdoor unit is firmly fixed.
4. Check that air cannot enter the refrigerant system and check for refrigerant leaks when moving the air conditioner.
5.Carry out a test cycle after installing the air conditioner and record the operating data.
6.Protect the indoor unit with a fuse of suitable capacity for the maximum input current or with another overload protection device.
7. Ensure that the mains voltage corresponds to that stamped on the rating plate. Keep the switch or power plug clean. Insert the power plug correctly and firmly into the socket, thereby avoiding the risk of electric shock or fire due to insufficient contact.
8.Check that the socket is suitable for the plug , otherwise have the socket changed.
9.The appliance must be fitted with means for disconnection from the supply mains having a contact separation in all poles that provide full disconnection under over voltage category III conditions, and these means must be incorporated in the fixed wiring in accordance with the wiring rules.
10. The air conditioner must be installed by professional or qualified persons.
11. Do not install the appliance at a distance of less than 50 cm from inflammable substances(alcohol, etc.) Or from pressurized containers (e.g. spray cans).
12. If the appliance is used in areas without the possibility of ventilation, precautions must be taken to prevent any leaks of refrigerant gas from remaining in the environment and creating a danger of fire.
13. The packaging materials are recyclable and should be disposed of in the separate waste bins. Take the air conditioner at the end of its useful life to a special waste collection center for disposal.
14. Only use the air conditioner as instructed in this booklet. These instructions are not intended to cover every possible condition and situation. As with any electrical household appliance, common sense and caution are therefore always recommended for installation, operation and maintenance.
15. The appliance must be installed in accordance with applicable national regulations.
16. Before accessing the terminals, all the power circuits must be disconnected from the power supply.
17. The appliance shall be installed in accordance with national wiring regulations.
18. This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience

and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
19. Do not try to install the conditioner alone, always contact specialized technical personnel.
20.Cleaning and maintenance must be carried out by specialized technical personnel. In any case disconnect the appliance from the mains electricity supply before carrying out any cleaning or maintenance.
21. Ensure that the mains voltage corresponds to that stamped on the rating plate. Keep the switch or power plug clean. Insert the power plug correctly and firmly into the socket, thereby avoiding the risk of electric shock or fire due to insufficient contact.
22. Do not pull out the plug to switch off the appliance when it is in operation, since this could create a spark and cause a fire, etc.
23. This appliance has been made for air conditioning domestic environments and must not be used for any other purpose, such as for drying clothes, cooling food, etc.
24.Always use the appliance with the air filter mounted. The use of the conditioner without air filter could cause an excessive accumulation of dust or waste on the inner parts of the device with possible subsequent failures.
25. The user is responsible for having the appliance installed by a qualified technician, who must check that it is earth in accordance with current legislation and insert a thermos magnetic circuit breaker.
26. The batteries in the remote controller must be recycled or disposed of properly. For disposal of scrap batteries, please discard the batteries as sorted municipal waste at the accessible collection point.
27. Never remain directly exposed to the flow of cold air for a long time. The direct and prolonged exposition to cold air could be dangerous for your health. Particular care should be taken in the rooms where there are children, old or sick people.
28.If the appliance gives off smoke or there is a smell of burning, immediately cut off the power supply and contact the Service Center.
29. The prolonged use of the device in such conditions could cause fire or electrocution.
30. Have repairs carried out only by an authorised Service Centra of the manufacturer. Incorrect repair could expose the user to the risk of electric shock, etc.
31. Unhook the automatic switch if you foresee not to use the device for a long time. The airflow direction must be properly adjusted.
32. The flaps must be directed downwards in the heating mode and upwards in the cooling mode.
33. Ensure that the appliance is disconnected from the power supply when it will remain inoperative for a long period and before carrying out any cleaning or maintenance.
34.Selecting the most suitable temperature can prevent damage to the app

4 ACD-18KBTU

EN

SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLER
1. Do not bend, tug or compress the power cord since this could damage it. Electrical shocks or fire are probably due to a damaged power cord. Specialized technical personnel only must replace a damaged power cord.
2. Do not use extensions or gang modules.
3. Do not touch the appliance when barefoot or parts of the body are wet or damp.
4. Do not obstruct the air inlet or outlet of the indoor or the outdoor unit. The obstruction of these openings causes a reduction in the operative efficiency of the conditioner with possible consequent failures or damages.
5. In no way alter the characteristics of the appliance.
6. Do not install the appliance in environments where the air could contain gas, oil or sulphur or near sources of heat.
7. This appliance is not intended for use by persons (including children ) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

8. Do not climb onto or place any heavy or hot objects on top of the appliance.
9. Do not leave windows or doors open for long when the air conditioner is operating.
10. Do not direct the airflow onto plants or animals.
11. A long direct exposition to the flow of cold air of the conditioner could have negative effects on plants and animals.
12. Do not put the conditioner in contact with water. The electrical insulation could be damaged and thus causing electrocution.
13. Do not climb onto or place any objects on the outdoor unit.
14. Never insert a stick or similar object into the appliance. It could cause injury.
15. Children should be supervised to ensure that they do not play with the appliance. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

ACD-18KBTU 5

NAME OF PARTS

Indoor Unit

Mounting plate

Air outlet
Outdoor Unit

Air inlet Front panel Emergency button
Ref rigerant connecting pipe

Air outlet

Air inlet
Wiring cover
Drainage pipe Connection wiring Valve protective cover
Gas valve (Low pressure valve) Liquid valve (High pressure valve)
With the protective cover removed

6 ACD-18KBTU

EN
Indoor Display

2

1

3

NO

LED

FUNCTION

1

Indicator for Timer, temperature and Error codes.

2

Lights up during Timer operation.

3

SLEEP mode

The shape and position of switches and indicators may be different according to the model, but their function is the same.

ACD-18KBTU 7

REMOTE CONTROLLER
19 2 3 4 5 6 1

13 9
14

10

16

11

21

10

12

15 17 20 4 18 8 22 24 25

23
26 29
28 33
31 35

30 36 34 32 27 37

1. Battery indicator 2) Auto Mode 3) Cooling Mode 4) Dry Mode 5) Fan only Mode

2. Heating Mode 7) ECO Moder 8) Timer 9) Temperature indicator 10) Fan speed: Auto/low/ low-mid/ mid/ mid-high/ high

3. Mute function 12) TURBO function 13) Up-down auto swing 14) Left-right auto swing 15) SLEEP function 16) Health function 17) I FEEL function 18) 8ºC heating function 19) Signal indicator 20) Gentle wind

8 ACD-18KBTU

21. Child-Lock 22) Display ON/OFF 23) To turn on/off the air conditioner. 24) To increase temperature, or Timer setting hours. 25) To decrease temperature, or Timer setting hours. 26) MODE To select the mode of operation (AUTO,
    COOL, DRY, FAN, HEAT). 27) ECO To activate/deactivate the ECO function.
    Long press to activate/deactivate the 8ºC heating function (depending on models). 28) TURBO To activate/deactivate the TURBO function. 29) FAN To select the fan speed of auto/low/mid/high. 30) TIMER To set the time for timer on/off. 31) SLEEP To switch-on/off the function SLEEP. 32) DISPLAY To switch- on/off the LED display. 33) SWING To stop or start horizontal flaps louver

movement or set the desired up/down air flow direction.
34) SWING To stop or start vertical deflectors louver movement or set the desired left/right air flow direction.
35) I FEEL To switch-on/off the I FEEL function.
36) MUTE To switch-on/off the MUTE function. Long press to activate/deactivate the GEN function (depending on models).
37) I SET To memory the setting temperature, setting mode and setting fan speed as you need.
The display and some functions of the remote control may vary according to the model.
The shape and position of buttons and indicators may vary according to the model, but their function is the same.
The unit confirms the correct reception of each button with the beep.

EN

REPLACEMENT OF BATTERIES

Remove the battery cover plate from the rear of the remote control, by sliding it in direction as the arrow. Install the batteries according the direction (+ and -) shown on the Remote Control. Reinstall the battery cover by sliding it into place.
Use 2 pieces LRO3 AAA (1.5V) batteries. Do not use rechargeable batteries. Replace the old batteries with new ones of the same type when the display is no longer legible. Do not dispose batteries as unsorted municipal waste. Collection of such waste separately for special treatment is necessary.
For some model, each time when insert the batteries in the remote controller for the first time, you can set the Cooling only or Heating pump control type. As soon as you insert the batteries, turn off the remote controller, and operate as below.
1. Long press the MODE button, until the ( ) icon flash, to set the Cooling only type.
2. Long press the MODE button, until the ( ) icon flazsh, to set the Heating pump type.
Note: If you set the remote control in cooling mode, it will not be possible to activate the heating function in units with a heating pump. If you need to reset, take out the batteries and install again.
For some models of the remote controller, you can program the temperature display between ºC and ºF.
1. Press and hold the TURBO ,button over 5 seconds to get into the change mode;
2.Press and hold the TURBO until it switch to ºC and ºF.;
3. Then release the pressing and wait for 5 seconds, the function will be selected.z

Note:
1. Direct the remote control toward the Air conditioner
2. Check that there are no objects between the remote control and the Signal receptor in the indoor unit.
3. Never leave the remote control exposed to the rays of the sun.
4. Keep the remote control at a distance of at least 1m from the television or other electrical appliances.

ACD-18KBTU 9

COOLING MODE

The cooling function allows the air

COOL

conditioner to cool the room and reduce

Air humidity at the same time.

To activate the cooling function (COOL), press the

MODE button until the symbol appears on the

display.

With the button or set a temperature lower

than that of the room.

FAN MODE (Not FAN button)

FAN DRY MODE

Fan mode, air ventilation only. To set the FAN mode, press MODE until appears on the display.

DRY

This function reduces the humidity of the air to make the room more

comfortable. To set the DRY mode, Press MODE until appears

in the display. An automatic function of pre-setting is

activated.

AUTO MODE

AUTO

Automatic mode. To set the AUTO mode, press MODE

until appears on the display.

In AUTO mode the run mode will be set

automatically according to the room temperature.

HEATING MODE

The heating function allows the air

HEAT

conditioner to heat the room.

To activate the heating function (HEAT),

press the MODE button until the symbol appears on

the display.

With the button or set a temperature higher than that

of the room.

In HEATING operation, the appliance can automatically activate a defrost cycle, which is essential to clean the frost on the condenser so as to recover its heat exchange function. This procedure usually lasts for 2-10 minutes. During defrosting, indoor unit fan stop operation. After defrosting, it resumes to HEATING mode automaticall

FAN SPEED function (FAN button)

Change the operating fan speed.

FAN

Press button FAN to set the running fan

speed,

it can be set to AUTO/ MUTE/ LOW/ LOW-MID

/ MID/ MID-HIGH/ HIGH/ TURBO speed circularly.

CHILD-LOCK FUNCTION
1. Long press MODE and TIMER button together to active this function, and do it again to desactivate this function.
2. Under this function, no single button will active.

TIMER function —- TIMER ON

TIMER

To automatic switch on the appliance. When the unit is switch-off, you can set

the TIMER ON.

To set the time of automatic switch-on as below:

1. Press TIMER button first time to set the switch-on,

and

will appear on the remote display and

flashes.

2. Press or to button to set desired Timer-on time. Each time you press the button, the time increases/ decreases by half an hour between 0 and 10 hours and by one between 10 and 24 hours.
3. Press TIMER button second time to confirm.

4. After Timer-on setting, set the needed mode (Cool/ Heat/ Auto/ Fan/ Dry), by press the MODE button. And set the needed fan speed, by press FAN button. And press or to set the needed operation temperature.
CANCEL it by press TIMER button.

TIMER function —- TIMER OFF

TIMER

To automatic switch off the appliance. When the unit is switch-off, you can set

the TIMER ON.

To set the time of automatic switch-on as below:

When the unit is switch-on, you can set the TIMER OFF.

1. Confirm the appliance is ON. 2. Press the TIMER button at first time to set the
switch-off. 3. Press TIMER button at the second time to confirm.
CANCEL it by press TIMER button.
Note: All programming should be operated within 5 seconds, otherwise the setting will be cancelled.

SWING function

SWING

SWING

1. Press the button SWING to activate the louver,
1.1 Press to activate the horizontal flaps to swing from up to down, the will appear on the remote display. Press again to stop the swing movement at the current angle. 1.2 Press to active the vertical deflectors to swing from left to right, the will appear on the remote display. Press again to stop the swing movement at the current angle.

2. If the vertical deflectors are positioned manually which placed under the flaps, they allow to move the air flow direct to rightward or leftward.

3. For some inverter heating models, press horizontal SWING and vertical SWING together button at the same time, it will activate the Self-Clean function.

10 ACD-18KBTU

This adjustment must be done while the appliance is switched off
Never position Flaps manually, the delicate mechanism might seriously damaged!
Never put fingers, sticks or other objects into the air inlet or outlet vents. Such accidental contact with live parts might cause unforeseeable damage or injury.
TURBO function

To activate turbo function, press the

TURBO

TURBO button, and will appear on

the display.

Press again to cancel this function.

In COOL/ HEAT mode, when you select TURBO feature,

the appliance will turn to quick COOL or quick HEAT

mode, and operate the highest fan speed to blow

strong airflow.

MUTE function

MUTE

1. Press MUTE button to active this function, and will appears on the remote display. Do it again to deactivate this function.
2. When the MUTE function runs, the remote controller will display the auto fan speed, and the indoor unit will operate at lowest fan speed to be quiet feeling.
3. When press FAN/ TURBO/ SLEEP button, the MUTE function will be cancel. MUTE function can not be activated under dry mode.
SLEEP function

SLEEP

Pre-setting automatic operating program.

Press SLEEP button to activate the

SLEEP function, and appears on the display. Press

again to cancel this function.

After 10 hours running in sleep mode, the air conditioner will change to the previous setting mode.

I FEEL function (Optional)

I FEEL function.

Press I FEEL button to active the function, the will appear on the remote
display. Do it again to deactivate this

This function enables the remote control to measure the temperature at its current location, and send this signal to the air conditioner to optimize the temperature around you and ensure the comfort.

It will automatically deactivate 2 hours later.

ECO function

In this mode the appliance automatically

ECO

sets the operation to save energy.

Press the ECO button, the appears on

the display, and the appliance will run in ECO mode.

Press again to cancel it.

Note: The ECO function is available in both COOLING and HEATING modes. DISPLAY function

Switch ON/OFF the LED display on panel. DISPLAY Press DISPLAY button to switch off the
LED display on the panel. Press again to switch on the LED display.
GEN function (Optional)
1. Turn on the indoor unit at first, and long press MUTE button 3 seconds to active, and do it again to deactivate this function.
2. Under this function, short press MUTE button to select the General type L3 – L2 – L1 – OF.
3. Select OF and wait 2 seconds to exit it.

• If the indoor unit displays “0A”, please use the remote to raise the operating gear of the GEN mode, and the compressor will restart after stopping for 3 minutes.
  SELF-CLEAN function (Optional)
  Only optional for some heating pump inverter appliance. To active this function, turn off the indoor unit at first, then press SWING and SWING button at the same time toward the indoor unit, until hear a beep, and AC will appear on the remote controller display and the indoor LED display.
  1. This function helps carry away the accumulated dirt, bacteria, etc from the indoor evaporator.
  2. This function will run about 30 minutes, and it will return to the pre- setting mode. You can press button to cancel this function during the process.
  You will hear 2 beeps when it’s finished or cancelled.
  It’s normal if there is some noise during this function process, as plastic materials expand with heat and contract with cold.
  We suggest operating this function at the following ambient conditions to avoid certain safety protection features.
  Indoor unit Temp < 86ºF (30ºC)
  Outdoor unit 41ºF (5ºC) < Temp < 86ºF(30ºC)
  It’s suggested to utilize this function every 3 months.
  8ºC HEATING function (Optional)
  1. Long press ECO button over 3 seconds to active this function, and 8ºC ( 46ºF ) will appear on the remote display.
  2. Do it again to deactivate this function 8ºC 46ºF This function will auto start the heating mode when the room temperature is lower than 8ºC (46ºF), and it will return to standby if the temperature reaches 9ºC (48ºF).
  3. If the room temperature is higher than 18ºC (64ºF), the appliance will cancel this function automatically.

EN

ACD-18KBTU 11

Gentle Wind function (Optional)
1. Turn on the indoor unit, and change to COOL mode, then long press FAN and MUTE button together 3 seconds to active this function, will appear on the display. Do it again to deactivate it.
2. This function will auto close the vertical flaps, and give you the comfortable gentle wind feeling.
Health function (Optional)
1. Turn on the indoor unit at first, and long press SLEEP and DISPLAY button together 3 seconds to active this function, will appear on the display. Do it again to deactivate it
2. When the HEALTH function is initiated, the Ionizer/ Plasma/ Bipolar Ionizer/ UVC Lights (depending on models) will be energized and running.

I SET function (Optional)
Remember your favorite setting and run into it by press One button Remember the favorite setting:
1. In each mode (COOLING/ HEATING/ FAN/ DRY), long press ” I SET ” button over 3 seconds to remember it;
2. When “AU” flashing appears on the remote controller display, that means the remote controller remember your favorite setting;

• Press any button to quit, and you can reset it by repeat 1, 2 operation.
  Run into the favorite setting:
  1. In each mode (COOLING/ HEATING/ FAN/ DRY), one press ” I SET ” button to active;
  2. The appliance will run as your favorite setting and you will see [AU] flashing on the remote controller;
  3. Press it again or other buttons to cancel this function.

OPERATION INSTRUCTIONS

Attempt to use the air conditioner under the temperature beyond the specified range may cause the air conditioner protection device to start and the

air conditioner may fail to operate. Therefore, try to use the air conditioner in the following temperature conditions.

Inverter air conditioner:

Temperature

MODE

Room temperature

Outdoor temperature

Heating 0 ºC~30ºC -20ºC~30ºC

Cooling

Dry

17ºC ~32ºC

-15ºC~53ºC

With the power supply connected, restart the air conditioner after shutdown, or switch it to other mode during operation, and the air conditioner
12 ACD-18KBTU

protection device will start. The compressor will resume operation after 3 minutes.

Characteristics of heating operation (applicable to Heating pump)
Preheating:
When the heating function is enabled, the indoor unit will take 2~5 minutes for preheating, after that the air conditioner will start heating and blow s warm air.
Defrosting:
During heating, when the outdoor unit frosted, the air conditioner will enable the automatic

defrosting function to improve the heating effect. During defrosting, the indoor and outdoor fans stop running. The air conditioner will resume heating automatically after defrosting finish.
Emergency button:
Open the panel and find the emergency button on the electronic control box when the remote controller fails . (Always press the emergency button with insulation material.)

EN

Current status
Standby
Standby (Only for heating pump)
Running

Operation Press the emergency button once Press the emergency button twice in
3 seconds
Press the emergency button once

Respond It beeps briefly once. It beeps briefly twice.
It keeps beeping for a while

Enter mode Cooling mode Heating mode
Off mode

CONTROL-BOX COVER

(open the panel of indoor unit)

INSTRUCTIONS FOR SERVICING(R32)

1. Check the information in this manual to find out the dimensions of space needed for proper installation of the device, including the minimum distances allowed compared to adjacent structures.
2. Appliance shall be installed, operated and stored in a room with a floor area larger than 4m2.
3. The installation of pipe-work shall be kept to a minimum.
4. The pipe-work shall be protected from physical damage, and shall not be installed in an unventilated space if the space is smaller than 4m2.
5. The compliance with national gas regulations shall be observed.
6. The mechanical connections shall be accessible for maintenance purposes.
7. Follow the instructions given in this manual for

handling, installing, cleaning, maintaining and disposing of the refrigerant.
8. Make sure ventilation openings clear of obstruction.
9. Notice: The servicing shall be performed only as recommended by the manufacturer.
10. Warning:The appliance shall be stored in a wellventilated area where the room size corresponds to the room area as specified for operation.
11. Warning: The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater).
12. The appliance shall be stored so as to prevent mechanical damage from occurring.
13. It is appropriate that anyone who is called upon to work on a refrigerant circuit should hold a valid and

ACD-18KBTU 13

up-to-date certificate from an assessment authority accredited by the industry and recognizing their competence to handle refrigerants, in accordance with the assessment specification recognized in the industrial sector concerned. Service operations should only be carried out in accordance with the recommendations of the equipment manufacturer. Maintenance and repair operations that require the assistance of other qualified persons must be conducted under the supervision of the person competent for the use of flammable refrigerants.
14. Every working procedure that affects safety means shall only be carried out by competent persons.

15.Warning:

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not contain an odor.

Caution: Risk of fire

Operating instructions

Read technical manual

16. Information on servicing:

1. Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.
2. Work procedure Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor being present while the work is being performed.
3. General work area All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material
4. Checking for presence of refrigerant The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.
5. Presence of fire extinguisher If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO 2 fire extinguisher adjacent to the charging area.
6. No ignition sources No person carrying out work in relation to a refrigeration system which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to
   14 ACD-18KBTU

make sure that there are no flammable hazards or ignition risks. No Smoking signs shall be displayed.
7) Ventilated area Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
8) Checks to the refrigeration equipment Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed.
If in doubt consult the manufacturer’s technical department for assistance.
The following checks shall be applied to installations using flammable refrigerants:
— The charge size is in accordance with the room size within which the refrigerant containing parts are installed;
— The ventilation machinery and outlets are operating adequately and are not obstructed;
— If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant;
— Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected;
— Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.

The following checks shall be applied to installations using flammable refrigerants:
— The charge size is in accordance with the room size within which the refrigerant containing parts are installed;
— The ventilation machinery and outlets are operating adequately and are not obstructed;
— If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant;
— Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected;
— Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
9) Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include:
— That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
— That there no live electrical components and wiring are exposed while charging, recovering or purging the system;
— That there is continuity of earth bonding.
17. Repairs to sealed components

1. During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
2. Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc. Ensure that apparatus is mounted securely. Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be in accordance with the manufacturer’s specifications.
   NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not

have to be isolated prior to working on them.
18. Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere. The test apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak.
19. Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
20. Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
21. Leak detection methods
The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area). Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/ extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged through the system both before and during the brazing process.
22. Removal and evacuation
When breaking into the refrigerant circuit to make repairs or for any other purpose conventional procedures shall be used. However, it is important that best practice is followed since inflammability is a consideration. The following procedure shall be adhered to:
— Remove refrigerant; — Purge the circuit with inert gas; — Evacuate; — Purge again with inert gas; — Open the circuit by cutting or brazing.

EN

ACD-18KBTU 15

The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall be flushed with OFN to render the unit safe. This process may need to be repeated several times. Compressed air or oxygen shall not be used for this task. Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the system. When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation is absolutely vital if brazing operations on the pipe-work are to take place. Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is ventilation available.
23. Decommissioning
Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure, ensure that:
· mechanical handling equipment is available, if required, for handling refrigerant cylinders;
· all personal protective equipment is available and being used correctly
· the recovery process is supervised at all times by a competent person;
· recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
f) Make sure that the cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with manufacturer’s instructions.
h) Do not overfill cylinders. (No more than 80 % volume liquid charge).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
k) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.

24. Labeling
Equipment shall be labeled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.
25. Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge are available. All cylinders to be used are designated for the recovered refrigerant and labeled for that refrigerant (i.e. Special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-relief valve and associated shut-off valves in good working order.
Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in good working order with a set of instructions concerning the
equipment that is at hand and shall be suitable for the recovery of all appropriate refrigerants including, when applicable, flammable refrigerants. In addition, a set of calibrated weighing scales
shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recover cylinder, and the relevant waste transfer note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant.
The evacuation process shall be carried out prior to returning the compressor to the suppliers.
Only electric heating to the compressor body shall be employed to accelerate this process. When oil is drained from a system, it shall be carried out safely.

16 ACD-18KBTU

INSTALLATION PRECAUTIONS

(R32)

EN

Important Considerations
1. The air conditioner must be installed by professional personnel and the Installation manual is used only for the professional installation personnel! The installation specifications should be subject to our after-sale service regulations.
2. When filling the combustible refrigerant, any of your rude operations may cause serious injury or injuries to human body and objects.
3. A leak test must be done after the installation completed.
4. It is a must to do the safety inspection before maintaining or repairing an air conditioner using combustible refrigerant in order to ensure that the fire risk is reduced to minimum.
5. It is necessary to operate the machine under a controlled procedure in order to ensure that any risk arising from the combustible gas or vapor during the operation is reduced to minimum.
6. Requirements for the total weight of filled refrigerant and the area of a room to be equipped with an air conditioner (are shown as in the following Tables GG.1 and GG.2)

The maximum charge and the required minimum floor area
m1= (4m3) x LFL , m2 = (26 m3)) x LFL, m3 = (130m3 )x LFL
Where LFL is the lower flammable limit in kg/ m3 ,R32 LFL is 0.038 kg/ m3 .
For the appliances with a charge amount m1 < M = m2
The maximum charge in a room shall be in accordance with the following:
mmax = 2.5 x (LFL)(5/4) x h0 x (A)1/2 The required minimum floor area Amin to install an appliance with refrigerant charge M (kg) shall be in accordance with following: Amin = (M/ (2.5 x (LFL)(5/4) x h0))2

Table GG.1 – Maximum charge (kg)

Category

LFL (kg/m3)

h0 (m)

Floor area (m)2

R32

0.306

1

4

7

10

15

20

1.14

1.51

1.8

2.2

2.54

1.8

2.05

2.71

3.24

3.97

4.58

2.2

2.5

3.31

3.96

4.85

5.6

Table GG.2 – Minimum room area (m)2

Category

LFL (kg/m3)

R32

0.306

h0 (m) 0.6

1.224kg

1.836kg 29

Charge amount (M) (kg) Minimum room area (m2) 2.448kg 3.672kg 4.896kg

51

116

206

30 3.12 5.61 6.86

50 4.02 7.254 8.85

6.12kg 321

7.956kg 543

1

10

19

42

74

116

196

1.8

3

6

13

23

36

60

2.2

2

4

9

15

24

40

1. Installation Safety Principles

Open Flames Prohibited

Ventilation Necessary

ACD-18KBTU 17

2. Operation Safety

from open fire or welding, smoking, drying oven or any other heat source higher than 548 which easily produces open fire.

3. When installing an air conditioner, it is necessary to take appropriate anti-static measures such as wear anti-static clothing and/or gloves.

4. It is necessary to choose the site convenient for

Mind Static Electricity

Must wear protective clothing

Don`t use mobile phone

installation or maintenance wherein the air inlets and outlets of the indoor and outdoor units should be not surrounded by obstacles or close to any

heat source or combustible and/or explosive

3. Installation Safety

environment. 5. If the indoor unit suffers refrigerant leak during the

Refrigerant Leak Detector Appropriate Installation Location

installation, it is necessary to immediately turn off the valve of the outdoor unit and all the personnel should go out until the refrigerant leaks completely

The left picture is the schematic diagram of a refrigerant leak detector.

for 15 minutes. If the product is damaged, it is a must to carry such damaged product back to the maintenance station and it is prohibited to weld the

refrigerant pipe or conduct other operations on the

user’s site.

Please note that:
1. The installation site should be well-ventilated.
2. The sites for installing and maintaining an air conditioner using Refrigerant R32 should be free

6. It is necessary to choose the place where the inlet and outlet air of the indoor unit is even.
7. It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets, kitchen cabinet, bed, sofa and other valuables right under the lines on two sides of the indoor unit.

Tool
Standard Wrench

Picture

Adjustable/ Crescent Wrench
Torque Wrench

Hex Keys or Allen Wrenches
Drill & Drill Bits

Tool Pipe Cutter
Screw drivers (Phillips & Flat
blade)
Manifold and Gauges
Level
Flaring tool

Picture

Tool Vacuum Pump

Safety Glasses

Work Gloves
Refrigerant Scale
Micron Gauge

Picture

Hole Saw

Clamp on Amp Meter

18 ACD-18KBTU

Pipe Length and Additional Refrigerant

EN

Inverter Models Capacity (Btu/h)
Length of pipe with standard charge
Length of pipe with standard charge (Like: North American, etc.) Maximum distance between indoor and outdoor unit Additional refrigerant charge
Max. diff. in level between indoor and outdoor unit
Type of refrigerant

9K-12K

5m/16ft

5m/16ft

7.5m/24ft

7.5m/24ft

15m/49ft

15m/49ft

20g/m 10m/32ft R22/R410A

15g/m 10m/32ft R32

18K-36K

5m/16ft

5m/16ft

7.5m/24ft

7.5m/24ft

25m/82ft

25m/82ft

30g/m 10m/32ft R22/R410A

25g/m 10m/32ft R32

ON-OFF Models Capacity (Btu/h) Length of pipe with standard charge Maximum distance between indoor and outdoor unit Additional refrigerant charge Max. diff. in level between indoor and outdoor unit Type of refrigerant
Torque Parameters

9K-12K

5m/16ft

5m/16ft

15m/49ft

15m/49ft

20g/m

15g/m

5m/16ft

5m/16ft

R22/R410A

R32

18K-36K

5m/16ft

5m/16ft

15m/49ft

15m/49ft

30g/m

25g/m

5m/16ft

5m/16ft

R22/R410A

R32

PIPE Size
1/4” ( 6.35) 3/8 ”( 9.52)
1/2” ( 12) 5/8 ”( 15.88)

Newton meter[N x m] 18 – 20 30 – 35 45 – 50 60 – 65

Pound-force foot (Ibf-ft)
24.4 – 27.1 40.6 – 47.4 61.0 – 67.7 81.3 – 88.1

Kilogram-force meter (kgf-m) 2.4 – 2.7 4.1 – 4.8 6.2 – 6.9 8.2 – 8.9

Dedicated Distribution Device and Wire for Air Conditioner
INVERTER TYPE MODEL capacity (Btu/h)
N L Power supply cable

Connection cable

N L or (L)
1

18k
1.5mm2 1.5mm2 1.5mm2

24k sectional area
2.5mm2 2.5mm2 2.5mm2

0.75mm2 0.75mm2 0.75mm2 0.75mm2

0.75mm2 0.75mm2 0.75mm2 0.75mm2

Note: This table is only for reference, the installation shall meet the requirements of local laws and regulations.

ACD-18KBTU 19

INDOOR UNIT INSTALLATION

Step 1: Select Installation location

1. Ensure the installation complies with the installation minimum dimensions (defined below) and meets the minimum and maximum connecting piping length and maximum change in elevation as defined in the System Requirements section.

2. Air inlet and outlet will be clear of obstructions, ensuring proper airflow throughout the room.
   3)Condensate can be easily and safely drained.

3. All connections can be easily made to outdoor unit.
   5)Indoor unit is out of reach of children.

4. A mounting wall strong enough to withstand four times the full weight and vibration of the unit.

5. Filter can be easily accessed for cleaning.

6. Leave enough free space to allow access for routine maintenance.

7. Install at least 10 ft. (3 m) away from the antenna of TV set or radio. Operation of the air conditioner may interfere with radio or TV reception in areas where reception is weak. An amplifier may be required for the affected device.

Do not install in a laundry room or by a

swimming pool due to the corrosive environment.

11. For ETL certification area, Caution: Mount with the lowest moving parts at least 8 ft. (2.4 m) above floor or grade level.

13cm / 5 in.

Ceiling

20cm / 8 in.

13cm / 5 in.

250cm / 8ft.

Floor

Step 2: Install Mounting Plate

1. Take the mounting plate from the back of indoor unit.
   2)Ensure to meet the minimum installation dimension requirements as step 1, according to the size of mounting plate, determine the position and stick the mounting plate close to the wall.
   3)Adjust the mounting plate to a horizontal state with

a spirit level, then mark out the screw hole positions on the wall.
4) Put down the mounting plate and drill holes in the marked positions with drill.
5)Insert expansion rubber plugs into the holes, then hang the mounting plate and fix it with screws.

Reference screw positions

Spirit level

Mounting plate

Note: (I) Make sure the mounting plate is firm enough and flat against the wall after installation.

(II)This figure shown may be different from the actual object, please take the latter as the standard.

20 ACD-18KBTU

Step 3: Drill Wall Hole
A hole in the wall should be drilled for refrigerant piping, the drainage pipe, and connecting cables.

1. Determine the location of wall hole base on the position of mounting plate.
2. The hole should be have a 70mm diameter at least and a small oblique angle to facilitate drainage.
3. Drill the wall hole with 70mm core drill and with

small oblique angle lower than the indoor end about 5mm to 10mm. 4) Place the wall sleeve and wall sleeve cover(both are optional parts) to protect the connection parts.
Caution: When drill the wall hole, maker sure to avoid wires, plumbing and other sensitive components.

EN

70 mm

Wall sleeve Cover (Optional)
Indoor

Wall sleeve (Optional)
Outdoor
5-10mm Small bolique angle

Step 4: Connecting Refrigerant Pipe

1. According to the wall hole position, select the appropriate piping mode.
   There are three optional piping modes for indoor units as shown in the figure below: In Piping Mode 1 or Piping Mode 3, a notch should

be made by using scissors to cut the plastic sheet of piping outlet and cable outlet on the corresponding side of the indoor unit.
Note: When cutting off the plastic sheet at the outlet, the cut should be trimmed to smooth.

1 23

Piping outlet Cable outlet

2. Bending the connecting pipes with the port facing up as shown in the figure.

YES

NO

ACD-18KBTU 21

3. Take off the plastic cover in the pipe ports and take off the protective cover on the end of piping connectors.
4. Check whether there is any sundry on the port of the connecting pipe and make ensure the port is clean.
5. After align the center, rotate the nut of the

connecting pipe to tighten the nut as tightly as possibleby hand. 6) Use a torque wrench to tighten it according to the torque values in the torque requirements table; (Refer to the torque requirements table on section INSTALLATION PRECAUTIONS) 7) Wrap the joint with the insulation pipe.

Note: For R32 refrigerant, the connector should be placed outdoors.

Indoor

Outdoor The connector should be outdoor

Step 5: Connect Drainage Hose

1. Adjust the drainage hose(if applicable)
   In some model, both sides of the indoor unit are provided with drainage ports, you can choose one

of them to attache the drainage hose. And plug the unused drain port with the rubber attached in one of the ports.

Drainage ports

2. Connect the drainage hose to the drainage port, ensure the joint is firm and the sealing effect is good.
3. Wrap the joint firmly with teflon tape to ensure no leaks.

Note: Make sure there is no twists or dents, and the pipes should be placed obliquely

22 ACD-18KBTU

Step 6: Connect Wiring

1. Choose the right cables size determined by the maximum operating current on the nameplate.
   (Check the cables size refer to section INSTALLATION PRECAUTIONS) 2) Open the front panel of indoor unit. 3) Use a screwdriver, open the electric control box cover, to reveal the terminal block. 4) Unscrew the cable clamp.

2. Insert one end of the cable into the position of control box from the back of the right end of the indoor unit.

3. Connect the wires to corresponding terminal according to the wiring diagram on the electric control box cover. And make sure that they are well connected.

4. Screw the cable clamp to fasten the cables.

5. Reinstall the electric control box cover and front panel.

EN

Control box cover

Cable clamp

Wiring diagram

Step 7: Wrap Piping and Cable

After the refrigerant pipes, connecting wires and drainage hose are all installed, in order to save space, protect and insulate them, it must be bundle with insulating tape before passing them through the wall hole.

Connecting wiring

1. Arrange the pipes ,cables and drainagehose well as the following picture.
   Note:

Insulation tape

(I) Make sure the drainage hose is at the bottom. (II) A void crossing and bending of parts.

2. Using the insulating tape wrap the refrigerant pipes, connecting wires and drainage hose together tightly.

Refrigerant piping Drainage hose

Step 8: Mount Indoor Unit

1. Slowly pass the refrigerant pipes, connecting wires and drainage hose wrapped bundle through the wall hole.
2. Hook the top of indoor unit on the mounting plate.
3. Apply slight pressure to the left and right sides of the indoor unit, make sure the indoor unit is hooked firmly.
4. Push down the bottom of indoor unit to let the snaps onto the hooks of the mounting plate, and make sure it is hooked firmly.

Sometimes, if the refrigerant pips were already embedded in the wall, or if you want to connecting the pips and wires on the wall, do as below:
(I) Gab both ends of the bottom plate, apply a little outward force to take off the bottom plate.
(II) Hook the top of the indoor unit on the mounting plate without piping and wiring.
(III) Lift the indoor unit opposite the wall, unfold the bracket on the mounting plate, and use this bracket to prop up the indoor unit, there will be a big space for operation.
(IV) Do the refrigerant piping, wiring, connect drainage hose, and wrap them as Step 4 to 7.
(V) Replace the bracket of mounting plate.
(VI)Push down the bottom of indoor unit to let the snaps onto the bottom hooks of the mounting plate, and make sure it is hooked firmly.
(VII)Replace the bottom plate of the indoor unit.

ACD-18KBTU 23

Take off the bottom plate

Unfold the bracket on the mounting plate

OUTDOOR UNIT INSTALLATION

Over 50cm/ 20 in. Over 30cm/ 12 in.

Step 1: Select Installation Location
Select a site that allows for the following:

1. Do not install the outdoor unit near sources of heat, steam or flammable gas.
2. Do not install the unit in too windy or dusty places.
3. Do not install the unit where people often pass. Select a place where the air discharge and operating sound will not disturb the neighbors.
4. Avoid installing the unit where it will be exposed to direct sunlight ( other wise use a protection, if necessary, that should not interfere with the air flow).
5. Reserve the spaces as shown in the picture for the air to circulate freely.
6. Install the outdoor unit in a safe and solid place.
7. If the outdoor unit is subject to vibration, place rubber blankets onto the feet of the unit.

Over 30cm/ 12 in. Step 1

Over 50cm/ 20 in.
Over 200cm/ 79 in.

Step 2: Install Drainage Hose

1. This step only for heating pump models. 2) Insert the drainage joint to the hole at the bottom
   of the outdoor unit. 3) Connect the drainage hose to the joint and make
   the connection well enough.

Step 2 Drainage hose

Drainage joint

Step 3: Fix Outdoor Unit

1. According to the outdoor unit installation dimensions to mark the installation position for expansion bolts.
2. Drill holes and clean the concrete dust and place the bolts .
3. If applicable install 4 rubber blankets on the hole before place the outdoor unit (Optional). This will reduce vibrations and noise.
4. Place the outdoor unit base on the bolts and predrilled holes.
5. Use wrench to fix the outdoor unit firmly with bolts.

Step 3 Install 4 rubber blankets (Optional)

24 ACD-18KBTU

Step 4: Install Wiring

1. Use a phillips screwdriver to unscrew wiring cover, grasp and press it down gently to take it down
2. Unscrew the cable clamp and take it down.
3. According to the wiring diagram pasted inside the wiring cover, connect the connecting wires to the corresponding terminals, and ensure all connections are firmly and securely.

EN
4) Reinstall the cable clamp and wiring cover. Note: When connecting the wires of indoor and outdoor units, the power should be cut off.

Terminal block Cable clamp Wiring cover
Wiring diagram

Outdoor

POWER SUPPLY

Wiring diagram

Indoor

Step 5: Connecting Refrigerant Pipe

1. Unscrews the valve cover, grasp and press it down gently to take it down(if the valve cover is applicable).

2. Remove the protective caps from the end of valves.

3. Take off the plastic cover in the pipe ports and check whether there is any sundry on the port of the connecting pipe and make ensure the port is clean.

4. After align the center, rotate the flare nut of the connecting pipe to tighten the nut as tightly as possible by hand.

5. Use a spanner hold the body of the valve and use a torque wrench to tighten the flare nut according to the torque values in the torque requirements table.
   (Refer to the torque requirements table on section INSTALLATION PRECAUTIONS)

Take down the valve cover

ACD-18KBTU 25

Step 6: Vacuum Pumping

1. Use a spanner to take down the protective caps from the service port, low pressure valve and high pressure valve of the outdoor unit.

2. Connect the pressure hose of manifold gauge to the service port on the outdoor unit low pressure valve.

3. Connect the charge hose from the manifold gauge to the vacuum pump.

4. Open the low pressure valve of the manifold gauge and close the high pressure valve.

5. The vacuum time should not be less than 15 minutes, or make sure the compound gauge indicates -0.1 MPa (-76 cmHg)

6. Turn on the vacuum pump to vacuum the system

7. Close the low pressure valve of the manifold gauge and turn off the vacuum.

8. Hold the pressure for 5 minutes, make sure that the rebound of compound gauge pointer does not exceed 0.005 MPa.

9. Open the low pressure valve counterclockwise for 1/4 turn with hexagonal wrench to let a little refrigerant fill in the system, and close the low pressure valve after 5 seconds and quickly remove the pressure hose.

10. Check all indoor and outdoor joints for leakage with soapy water or leak detector.

11. Fully open the low pressure valve and high pressure valve of the outdoor unit with hexagonal wrench

12. Reinstall the protective caps of the service port, low pressure valve and high pressure valve of the outdoor unit.

13. Reinstall the valve cover.

Compound gauge
Low pressure valve Service port
High pressure valve Valve protective caps
Pressure hosecaps

Manifold gauge
Pressure gauge High pressure valve Low pressure valve
Charge hose Vacuum pump

TEST OPERATION

Inspections Before Test Run Do the following checks before test run.

Description
Electrical safety inspection

Inspection method
· Check whether the power supply voltage complies with specification. · Check whether there is any wrong or missing connection between the power lines,
signal line and earth wires. · Check whether the earth resistance and insulation resistance comply with
requirements.

Installation safety
inspection

· Confirm the direction and smoothness of drainage pipe. · Confirm that the joint of refrigerant pipe is installed completely. · Confirm the safety of outdoor unit, mounting plate and indoor unit installation. · Confirm that the valves are fully open. · Confirm that there are no foreign objects or tools left inside the unit. · Complete installation of indoor unit air inlet grille and panel.

26 ACD-18KBTU

Description
Refrigerant leakage detection

Inspection method
· The piping joint, the connector of the two valves of the outdoor unit, the valve spool, the welding port, etc., where leakage may occur.
· Foam detection method: Apply soapy water or foam evenly on the parts where leakage may occur, and observe whether bubbles appear or not, if not, it indicates that the leakage detection result is safe.
· Leak detector method: Use a professional leak detector and read the instruction of operation, detect at the position where leakage may occur.
· The duration of leak detection for each position should last for 3 minutes or more; If the test result shows that there is leakage, the nut should be tightened and tested again until there is no leakage; After the leak detection is completed, wrap the exposed pipe connector of indoor unit with thermal insulation material and wrap with insulation tape.

Test Run Instruction

1. Turn on the power supply.

2. Press the ON/OFF button on the remote controller to turn on the air conditioner.

3. Press the Mode button to switch the mode COOL and HEAT. In each mode set as below: COOL-Set the lowest temperature HEAT-Set the highest temperature

4. Run about 8 minutes in each mode and check all functions are properly run and respond the remote controller. Functions check as recommended:
   · If the outlet air temperature respond the cool and heat mode
   · If the water drains properly from the drainage hose
   · If the Louver and deflectors(optional) rotate properly

5. Observe the test run state of the air conditioner at least 30 minutes.

6. After the successfully test run, return the normal setting and press ON/OFF button on the remot controller to turn off the unit.

7. Inform the user to read this manual carefully before use, and demonstrate to the user how to use the air conditioner, the necessary knowledge for service and maintenance, and the reminder for storage of accessories.
   Note:
   If the ambient temperature is excess the range refer to section OPERATION INSTRUCTIONS, and it can not run COOL or HEAT mode, lift the front panel and refer to the emergency button operation to run the COOL and HEAT mode.

EN

MAINTENANCE

Warning

· When cleaning, you must shut down the machine and cut off the power supply for more than 5 minutes.
· Under no circumstances should the air conditioner be flushed with water.
· Volatile liquid (e.g. thinner or gasoline) will damage the air conditioner, so only use soft dry cloth or wet cloth dipped with neutral detergent to clean the air conditioner.
· Pay attention to cleaning the filter screen regularly to avoid dust covering which will affect the filter screen effect. When the operating environment is dusty, the cleaning frequency should be increased appropriately.
· After removing the filter screen, do not touch the fins of the indoor unit to avoid scratching.

Clean the unit

<40ºC (104ºF)

Wring it dry Gentle wipe the unit surface Tip: Wipe frequently to keep air conditioner clean and good appearance .

ACD-18KBTU 27

Disassembly and
assembly
of filter

· Grasp the raised handle on the filter by hand, and then pull the filter out in the direction deviating from the unit, so that the upper edge of the filter is separated from the unit. The filter can be removed by lifting the filter upwards.
· When installing the filter, first insert the lower end of the filter screen into the corresponding position of the unit, and then squeeze the upper end of the filter into the corresponding buckling position of the unit body.
Handle

Clean the filter

<40ºC (104ºF)

Opposite to the direction of taking out the filter

Take out the filter from the unit

Clean the filter with soapy water and air dry it

Replace the filter

Cleaning of inner air duct

Tip: When you find accumulated dust in the filter, please clean the filter in time to ensure the clean, healthy and efficient operation inside the air conditioner.
· First, loosen the knob on the middle of louver and bend the louver outwards to take it out. · Then, grasp both sides of bottom plate push downwards to take down the bottom plate. · Finally, loosen the buckle of deflector assembly with your thumb and take it out. · Wipe the air duct and fan assembly with a clean and wrung wet rag. · Clean the removed parts with soapy water and air dry it. · After cleaning, restore the removed parts in turn.

Louver

Deflector assembly Bottom plate

<40ºC (104ºF)

Service and maintenance

· When the air conditioner is not in use for a long time, do the following work: Take out the batteries of the remote controller and disconnect the power supply of the air conditioner.
· When starting to use after long-term shutdown:
1. Clean the unit and filter screen;
2.Check whether there are obstacles at the air inlet and outlet of indoor and outdoor units;
3. Check whether the drain pipe is unobstructed;

Install the batteries of the remote controller and check whether the power is on.

28 ACD-18KBTU

TROUBLESHOOTING

EN

MALFUNCTION

POSSIBLE CAUSES

Power failure/plug pulled out.

Damaged indoor/outdoor unit fan motor.

Faulty compressor thermomagnetic circuit breaker.

The appliance does not operate

Faulty protective device or fuses. Loose connections or plug pulled out.

It sometimes stops operating to protect the appliance.

Voltage higher or lower than the voltage range.

Active TIMER-ON function.

Strange odor

Damaged electronic control board. Dirty air filter.

Noise of running water Back flow of liquid in the refrigerant circulation.

A fine mist comes from the air outlet
A strange noise can be heard

This occurs when the air in the room becomes very cold, for example in the COOLING or DEHUMIDIFYING/DRY modes.
This noise is made by the expansion or contraction of the front panel due to variations in temperature and does not indicate a problem.
Unsuitable temperature setting.

Obstructed air conditioner intakes and outlets.

Insufficient airflow, eitherhot or cold

Dirty air filter. Fan speed set at minimum. Other sources of heat in the room.

No refrigerant.

The appliance does not respond to commands

Remote control is not close enough to indoor unit. The batteries of remote control need to be replaced.

Obstacles between remote control and signal receiver in indoor unit.

The display is off

Active DISPLAY function. Power failure.

Strange noises during operation.

Faulty electronic control board.

Switch off the air conditioner immediately
and cut off the power supply in the event of:

Faulty fuses or switches. Spraying water or objects inside the appliance.

Overheated cables or plugs.

Very strong smells coming from the appliance.

ACD-18KBTU 29

ERROR CODE ON THE DISPLAY
In case of error, the display on the indoor unit shown the following error codes:

DISPLAY

Description of the trouble Indoor room temperature sensor fault Indoor pipe temperature sensor fault Outdoor pipe temperature sensor fault Refrigerant system leakage or fault Malfunction of indoor fan motor Outdoor ambient temperature sensor fault Indoor and outdoor communication fault Outdoor discharge temperature sensor fault Outdoor IPM module fault Outdoor current detect fault Outdoor PCB EEPROM fault Outdoor fan motor fault Outdoor suction temperature sensor fault

DISPOSAL GUIDELINE (European)

This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appliance,the law requires special collection and treatment. DO NOT dispose of this product as household waste or unsorted municipal waste. When disposing of this appliance, you have the following options:
· Dispose of the appliance at designated municipal electronic waste collection facility.
· When buying a new appliance, the retailer will take back the old appliance free of charge.
· The manufacturer will also take back the old appliance free of charge.

· Sell the appliance to certifid scrap metal dealers.
· Disposing of this appliance in the forest or other natural surroundings endangers your health and is bad for the environment. Hazardous substances may leak into the ground water and enter the food chain.

30 ACD-18KBTU

EN
ACD-18KBTU 31

32 ACD-18KBTU

References

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