Aiwa ACD-24KBTU Manuel utilisateur

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 OBSŁUGI, INSTALACJA, FUNKCJE PL

ACD-24KBTU

MINI-SPLIT AIR CONDITIONER

INVERTER WITH SMART CONTROL & REMOTE CONTROL



INDEX

 .......................................................................................................................................................................................................................................................................................................................

NAME OF PARTS .............................................................................................................................................................................................................................................................................................................................................. 6

REMOTE CONTROL .....................................................................................................................................................................................................................................................................................................................................8

 ...................................................................................................................................................................................................................................................................................................

 ...................................................................................................................................................................................................................................................................

............................................................................................................................................................................................................................................................................................17

 ............................................................................................................................................................................................................................................................................................

 .....................................................................................................................................................................................................................................................................................

TEST OPERATION ....................................................................................................................................................................................................................................................................................................................................... 

MAINTENANCE ............................................................................................................................................................................................................................................................................................................................................... 

 ............................................................................................................................................................................................................................................................................................................................ 

 .....................................................................................................................................................................................................................................................................

*The design and specications 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.

 ACD-24KBTU





INSTALLER

1. Read this guide before installing and using the

appliance.

During the installation of the indoor and outdoor

units, access to the working area should be forbidden

to children. Unforeseeable accidents could happen.

.Make sure that the base of the outdoor unit is rmly

xed.

 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 rmly

into the socket, thereby avoiding the risk of electric

shock or re due to insufcient contact.

8. Check that the socket is suitable for the plug ,

otherwise have the socket changed.

The appliance must be tted 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 xed wiring in

accordance with the wiring rules.

The air conditioner must be installed by professional

or qualied persons.

11. Do not install the appliance at a distance of less than

50 cm from inammable substances(alcohol, etc.) Or

from pressurized containers (e.g. spray cans).

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 re.

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.

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.

Do not try to install the conditioner alone, always

contact specialized technical personnel.

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.

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 rmly

into the socket, thereby avoiding the risk of electric

shock or re due to insufcient contact.

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 re, etc.

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.

Always use the appliance with the air lter mounted.

The use of the conditioner without air lter could

cause an excessive accumulation of dust or waste on

the inner parts of the device with possible subsequent

failures.

The user is responsible for having the appliance

installed by a qualied technician, who must check

that it is earth in accordance with current legislation

and insert a thermos magnetic circuit breaker.

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.

Never remain directly exposed to the ow 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.

If the appliance gives off smoke or there is a smell

of burning, immediately cut off the power supply and

contact the Service Center.

The prolonged use of the device in such conditions

could cause re or electrocution.

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.

Unhook the automatic switch if you foresee not to

use the device for a long time. The airow direction

must be properly adjusted.

The aps must be directed downwards in the

heating mode and upwards in the cooling mode.

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.

Selecting the most suitable temperature can prevent

damage to the app

ACD-24KBTU 5

EN



INSTALLER

1. Do not bend, tug or compress the power cord since

this could damage it. Electrical shocks or re are

probably due to a damaged power cord. Specialized

technical personnel only must replace a damaged

power cord.

 Do not use extensions or gang modules.

 Do not touch the appliance when barefoot or parts

of the body are wet or damp.

 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 efciency 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.

 Do not leave windows or doors open for long when

the air conditioner is operating.

Do not direct the airow onto plants or animals.

11. A long direct exposition to the ow of cold air of the

conditioner could have negative effects on plants

and animals.

Do not put the conditioner in contact with water.

The electrical insulation could be damaged and thus

causing electrocution.

Do not climb onto or place any objects on the

outdoor unit.

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 qualied persons in

order to avoid a hazard.

6 ACD-24KBTU

Refrigerant

connecting pipe

Indoor Unit

Out

door Unit

Mounting plate

Air inlet

Front panel

Emergency button

Air inlet

Wiring cover

Drainage pipe

Connection wiring

Valve protective cover

Gas valve

(Low pressure valve)

Liquid valve

(High pressure valve)

Air outlet

With the protective cover removed

NAME OF PARTS

ACD-24KBTU 7

EN

Indoor Display

1





NO LED 

1Indicator for Timer, temperature and Error codes.

2Lights up during Timer operation.

3SLEEP mode

The shape and position of switches and indicators may be different according to the model,

but their function is the same.

8 ACD-24KBTU





5



6 1

17



8



18





 

15



























16



 



11





1) Battery indicator

 Auto Mode

 Cooling Mode

 Dry Mode

5) Fan only Mode

6) Heating Mode

7) ECO Moder

8) Timer

 Temperature indicator

 Fan speed: Auto/low/ low-mid/ mid/ mid-high/ high

11) Mute function

 TURBO function

 Up-down auto swing

 Left-right auto swing

15) SLEEP function

16) Health function

17) I FEEL function

18) 8ºC heating function

 Signal indicator

 Gentle wind

REMOTE CONTROLLER

ACD-24KBTU 

EN

 Child-Lock

 Display ON/OFF

 To turn on/off the air conditioner.

 To increase temperature, or Timer setting hours.

 To decrease temperature, or Timer setting hours.

 MODE To select the mode of operation (AUTO,

COOL, DRY, FAN, HEAT).

 ECO To activate/deactivate the ECO function.

Long press to activate/deactivate the 8ºC heating

function (depending on models).

 TURBO To activate/deactivate the TURBO function.

 FAN To select the fan speed of auto/low/mid/high.

 TIMER To set the time for timer on/off.

 SLEEP To switch-on/off the function SLEEP.

 DISPLAY To switch-on/off the LED display.

 SWING To stop or start horizontal aps louver

movement or set the desired up/down air ow

direction.

 SWING To stop or start vertical deectors louver

movement or set the desired left/right air ow

direction.

 I FEEL To switch-on/off the I FEEL function.

 MUTE To switch-on/off the MUTE function. Long

press to activate/deactivate the GEN function

(depending on models).

 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 conrms the correct reception of each button

with the beep.



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 rst

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 ash, to set the Cooling only type.

Long press the MODE button, until the ( )

icon azsh, 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  ,button over 5

seconds to get into the change mode;

Press and hold the  until it switch to

ºC and ºF.;

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

 Check that there are no objects between the remote

control and the Signal receptor in the indoor unit.

 Never leave the remote control exposed to the rays

of the sun.

 Keep the remote control at a distance of at least 1m

from the television or other electrical appliances.

 ACD-24KBTU



COOL

The cooling function allows the air

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 Fan mode, air ventilation only.

To set the FAN mode, press MODE until

appears on the display.

DRY MODE

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.



 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.



 The heating function allows the air

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)

FAN

Change the operating fan speed.

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.



1. Long press MODE and TIMER button together to

active this function, and do it again to desactivate

this function.

 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 rst time to set the switch-on,

and will appear on the remote display and

ashes.

 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.

 Press TIMER button second time to conrm.

 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. Conrm the appliance is ON.

 Press the TIMER button at rst time to set the

switch-off.

 Press TIMER button at the second time to conrm.

CANCEL it by press TIMER button.

Note: All programming should be operated within 5

seconds, otherwise the setting will be

cancelled.



 

1. Press the button SWING to activate the louver,

1.1 Press to activate the horizontal aps to

swing from up to down, the will appear on the

remote display. Press again to stop the swing

movement at the current angle.

 Press to active the vertical deectors to

swing from left to right, the will appear on the

remote display.

Press again to stop the swing movement at the

current angle.

 If the vertical deectors are positioned manually

which placed under the aps, they allow to move the air

ow direct to rightward or leftward.

 For some inverter heating models, press horizontal

SWING and vertical SWING together button at the same

time, it will activate the Self-Clean function.

ACD-24KBTU 11

EN

This adjustment must be done while the appliance is

switched off

Never position Flaps manually, the delicate

mechanism might seriously damaged!

Never put ngers, sticks or other objects into the air

inlet or outlet vents. Such accidental contact with

live parts might cause unforeseeable damage or

injury.



TURBO To activate turbo function, press the

TURBO button, and will appear on

the display.

Press again to cancel this function.

In COOL/ HEAT mode, when you select  feature,

the appliance will turn to quick COOL or quick HEAT

mode, and operate the highest fan speed to blow

strong airow.





1. Press  button to active this function, and

will appears on the remote display. Do it again to

deactivate this function.

 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.

 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 Press I FEEL button to active the

function, the will appear on the remote

display. Do it again to deactivate this

function.

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

ECO

In this mode the appliance automatically

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

DISPLAY Switch ON/OFF the LED display on panel.

Press DISPLAY button to switch off the

LED display on the panel. Press again to

switch on the LED display.



1. Turn on the indoor unit at rst, and long press

MUTE button 3 seconds to active, and do it again to

deactivate this function.

 Under this function, short press MUTE button to

select the General type L3 - L2 - L1 - OF.

 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 rst,

then press  and  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.

 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 nished 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.

It's suggested to utilize this function every

3 months.

function (Optional)

1. Long press ECO button over 3 seconds to active

this function, and 8ºC ( 46ºF ) will appear on the

remote display.

 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).

 If the room temperature is higher than 18ºC

(64ºF), the appliance will cancel this function

automatically.

Indoor unit Temp < 86ºF (30ºC)

Outdoor unit 41ºF (5ºC) < Temp < 86ºF(30ºC)

 ACD-24KBTU



1. Turn on the indoor unit, and change to COOL mode,

then long press FAN and  button together 3

seconds to active this function, will appear on the

display. Do it again to deactivate it.

 This function will auto close the vertical aps, and

give you the comfortable gentle wind feeling.



1. Turn on the indoor unit at rst, 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

 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;

 When "AU" ashing 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;

 The appliance will run as your favorite setting and

you will see [AU] ashing on the remote controller;

 Press it again or other buttons to cancel this

function.

Attempt to use the air conditioner under the

temperature beyond the specied 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.

With the power supply connected, restart the air

conditioner after shutdown, or switch it to other

mode during operation, and the air conditioner

protection device will start. The compressor will

resume operation after 3 minutes.

  Dry

Room temperature 0 ºC~30ºC 17ºC ~32ºC

Outdoor temperature -20ºC~30ºC -15ºC~53ºC

Temperature MODE

Inverter air conditioner:



Current status Operation Respond Enter mode

Standby Press the emergency button once It beeps briey once. Cooling mode

Standby

(Only for heating

pump)

Press the emergency button twice in

3 seconds

It beeps briey twice. Heating mode

Running Press the emergency button once It keeps beeping for a

while

Off mode





(open the panel of indoor unit)

ACD-24KBTU 

EN







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.



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 nish.



Open the panel and nd the emergency button on

the electronic control box when the remote

controller fails . (Always press the emergency button

with insulation material.)

1. Check the information in this manual to nd out the

dimensions of space needed for proper installation

of the device, including the minimum distances

allowed compared to adjacent structures.

 Appliance shall be installed, operated and stored in

a room with a oor area larger than 4m2.

 The installation of pipe-work shall be kept to a

minimum.

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.

Notice: The servicing shall be performed only as

recommended by the manufacturer.

The appliance shall be stored in a well-

ventilated area where the room size corresponds to

the room area as specied for operation.

11. The appliance shall be stored in a room

without continuously operating open ames (for

example an operating gas appliance) and ignition

sources (for example an operating electric heater).

 The appliance shall be stored so as to prevent

mechanical damage from occurring.

 It is appropriate that anyone who is called upon to

work on a refrigerant circuit should hold a valid and



 ACD-24KBTU

up-to-date certicate from an assessment authority

accredited by the industry and recognizing their

competence to handle refrigerants, in accordance

with the assessment specication 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 qualied persons must be

conducted under the supervision of the person

competent for the use of ammable refrigerants.

Every working procedure that affects safety means

shall only be carried out by competent persons.

15. 

* 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 ames, an operating gas

appliance or an operating electric heater).

* Do not pierce or burn.

* Be aware that refrigerants may not contain an

odor.

16. Information on servicing:

1) Checks to the area Prior to beginning work on

systems containing ammable 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.

 Work procedure Work shall be undertaken under

a controlled procedure so as to minimize the risk of

a ammable gas or vapor being present while the

work is being performed.

 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

conned 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 ammable material

 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 ammable

atmospheres. Ensure that the leak detection

equipment being used is suitable for use with

ammable refrigerants, i.e. non-sparking,

adequately sealed or intrinsically safe.

5) Presence of re extinguisher If any hot work is

to be conducted on the refrigeration equipment or

any associated parts, appropriate re extinguishing

equipment shall be available to hand. Have a dry

powder or CO 2 re 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 re or explosion. All possible

ignition sources, including cigarette smoking,

should be kept sufciently 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

make sure that there are no ammable 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 t for the purpose and to the correct

specication. 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 ammable 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.

  

ACD-24KBTU 15

EN

The following checks shall be applied to installations

using ammable 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.

 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.

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 specication,

damage to seals, incorrect tting 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 ammable atmospheres.

Replacement parts shall be in accordance with the

manufacturer's specications.

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 ammable atmosphere. The test apparatus shall

be at the correct rating. Replace components only

with parts specied by the manufacturer. Other

parts may result in the ignition of refrigerant in the

atmosphere from a leak.

 

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.

 

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 ame) shall not be used.

 

The following leak detection methods are deemed

acceptable for systems containing ammable

refrigerants.

Electronic leak detectors shall be used to detect

ammable 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 conrmed. Leak detection uids 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

ames 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.

 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 inammability

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.

16 ACD-24KBTU

The refrigerant charge shall be recovered into

the correct recovery cylinders. The system shall

be ushed 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 ll until

the working pressure is achieved, then venting

to atmosphere, and nally pulling down to a

vacuum. This process shall be repeated until no

refrigerant is within the system. When the nal 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.

 

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.

Start the recovery machine and operate in

accordance with manufacturer's instructions.

Do not overll 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 lled 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.

 

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 ammable refrigerant.

 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, ammable 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 ammable

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.

ACD-24KBTU 17

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 specications should be subject to our

after-sale service regulations.

 When lling the combustible refrigerant, any of

your rude operations may cause serious injury or

injuries to human body and objects.

 A leak test must be done after the installation

completed.

 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

re 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 lled

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)





m1= (4m3) x LFL , m2 = (26 m3)) x LFL, m3 = (130m3 )x LFL

Where LFL is the lower ammable limit in kg/ m

3

,R32

LFL is 0.038 kg/ m

3

.

For the appliances with a charge amount m

1

< M = m

2

The maximum charge in a room shall be in accordance

with the following:

m

max

= 2.5 x (LFL)

(5/4)

x h

0

x (A)

1/2

The required minimum oor area Amin to install an

appliance with refrigerant charge M (kg) shall be in

accordance with following:

A

min

= (M/ (2.5 x (LFL)

(5/4)

x h

0

))

2

 LFL





)



(m) Floor area (m)



  17 15   

 1.51 1.8    

1.8      5.61 

     5.6 6.86 8.85







 LFL





)



(m) 

Minimum room area (m



)

        

  51 116   

1    116 

1.8 6   

    15  

1. Installation Safety Principles

Open Flames Prohibited Ventilation Necessary



18 ACD-24KBTU



Mind Static

Electricity

Must wear

protective clothing



Refrigerant Leak Detector

Appropriate Installation Location

The left picture is the schematic

diagram of a refrigerant leak detector.

Please note that:

1. The installation site should be well-ventilated.

 The sites for installing and maintaining an air

conditioner using Refrigerant R32 should be free

from open re or welding, smoking, drying oven or

any other heat source higher than 548 which easily

produces open re.

 When installing an air conditioner, it is necessary to

take appropriate anti-static measures such as wear

anti-static clothing and/or gloves.

 It is necessary to choose the site convenient for

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

environment.

5. If the indoor unit suffers refrigerant leak during the

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

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.

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.

Don`t use

mobile phone

Tool Picture Tool Picture Tool Picture

Standard

 Pipe Cutter 



Crescent



Screw drivers



blade)



 Manifold and

 



 Level 

Scale

  

 Clamp on Amp

Meter

ACD-24KBTU 

EN



  

Length of pipe with standard charge 5m/16ft 5m/16ft 5m/16ft 5m/16ft

Length of pipe with standard charge (Like: North

American, etc.) 7.5m/24ft 7.5m/24ft 7.5m/24ft 7.5m/24f t

Maximum distance between indoor and outdoor

unit 15m/49ft 15m/49ft 25m/82ft 25m/82ft

Additional refrigerant charge 20g/m 15g/m 30g/m 25g/m

Max. diff. in level between indoor and outdoor unit 10m/32ft 10m/32ft 10m/32ft 10m/32ft

Type of refrigerant R22/R410A R32 R22/R410A R32

  

Length of pipe with standard charge 5m/16ft 5m/16ft 5m/16ft 5m/16ft

Maximum distance between indoor and outdoor unit 15m/49ft 15m/49ft 15m/49ft 15m/49ft

Additional refrigerant charge 20g/m 15g/m 30g/m 25g/m

Max. diff. in level between indoor and outdoor unit 5m/16ft 5m/16ft 5m/16ft 5m/16ft

Type of refrigerant R22/R410A R32 R22/R410A R32



PIPE Size  Pound-force foot

(Ibf-ft) 



1/4'' ( 6.35) 18 - 20 24.4 - 27.1 2.4 - 2.7

3/8 ''( 9.52) 30 - 35 40.6 - 47.4 4.1 - 4.8

1/2'' ( 12) 45 - 50 61.0 - 67.7 6.2 - 6.9

5/8 ''( 15.88) 60 - 65 81.3 - 88.1 8.2 - 8.9

Dedicated Distribution Device and Wire for Air Conditioner

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





18k 

sectional area

Power supply cable

N1.5mm

2

2.5mm

2

L1.5mm

2

2.5mm

2

1.5mm

2

2.5mm

2

Connection cable

N0.75mm

2

0.75mm

2

L or (L) 0.75mm

2

0.75mm

2

10.75mm

2

0.75mm

2

0.75mm

2

0.75mm

2

 ACD-24KBTU

Step 1: Select Installation location

1) Ensure the installation complies with the installation

minimum dimensions (dened below) and meets the

minimum and maximum connecting piping length and

maximum change in elevation as dened in the System

Requirements section.

 Air inlet and outlet will be clear of obstructions,

ensuring proper airow throughout the room.

Condensate can be easily and safely drained.

All connections can be easily made to outdoor unit.

5) Indoor unit is out of reach of children.

6) A mounting wall strong enough to withstand four

times the full weight and vibration of the unit.

7) Filter can be easily accessed for cleaning.

8) Leave enough free space to allow access for routine

maintenance.

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 amplier 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 certication area, Caution: Mount with the

lowest moving parts at least 8 ft. (2.4 m) above oor or

grade level.



1) Take the mounting plate from the back of indoor unit.

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.

Adjust the mounting plate to a horizontal state with

a spirit level, then mark out the screw hole positions on

the wall.

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 x it with screws.

Note: (I) Make sure the mounting plate is rm enough

and at against the wall after installation.

(II)This gure shown may be different from the actual

object, please take the latter as the standard.

Ceiling

Floor

>250cm / 8ft.

>20cm / 8 in.

>13cm / 5 in.

Reference screw positions

Spirit level





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Aiwa ACD-24KBTU Manuel utilisateur

Aiwa ACD-24KBTU Manuel utilisateur

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