HITACHI RAK-AH10PCASM Remote Controller Air Conditioner Installation Guide

HITACHI RAK-AH10PCASM Remote Controller Air Conditioner

Product Information

Specifications:

• Models: RAK-AH10PCASM/RAC-AH10PCASM, RAK-AH13PCASM/RAC-AH13PCASM, RAK-AH18PCASM/RAC-AH18PCASM, RAK-AH24PCASM/RAC-AH24PCASM
• Model Number: HI2022480HA

Product Usage Instructions

Safety Instructions:

Before using the air conditioner, please read through all safety instructions provided in the manual to ensure safe operation.

Preparation Before Use:

Ensure that the unit is placed in a suitable location with proper ventilation and access to power source before operation.

Installation Instructions:

Follow the detailed installation instructions provided in the manual for both indoor and outdoor unit installations, including wiring diagrams and air purging steps.

Maintenance:

Regular maintenance is essential for optimal performance. Refer to the maintenance section in the manual for instructions on how to clean and protect the unit.

Troubleshooting:

If you encounter any issues with the air conditioner, refer to the troubleshooting guide in the manual to identify and resolve common problems.

FAQs

• Q: How do I adjust the room temperature using the remote controller?
  • A: To adjust the room temperature, use the setting buttons on the remote controller. Press the buttons to increase or decrease the temperature as desired.
• Q: What is the purpose of the Turbo button on the remote controller?
  • A: The Turbo button is used to activate fast cooling, operating at high fan speed with a preset temperature of 16°C automatically for quick cooling.

INSTALLATION & OPERATION MANUAL
MODEL RAK-AH10PCASM/RAC-AH10PCASM RAK-AH13PCASM/RAC-AH13PCASM RAK-AH18PCASM /RAC-AH18PCASM RAK-AH24PCASM/RAC-AH24PCASM
HI2022480HA

Remote controller operating instructions.See”remote controller instructions”.

Remote controller

Remote controller

The remote controller transmits signals to the system.

1 ON/OFF BUTTON

The appliance will be started when it is energized or will be

stopped when it is in operation, if you press this button.

1

2 MODE BUTTON
Press this button to select the operation mode.

2

MODE ON/OFF

3

FAN

TURBO

6

3 FAN BUTTON

4

TEMP

5

Used to select fan speed in sequence auto, high, medium or low. 15

4 5 ROOM TEMPERATURE

8

SETTING BUTTONS

14

Used to adjust the room temperature and the timer, also real time. 11

MUTE

LIGHT

9

SLEEP

TIMER ON

TIMER OFF

CLOCK

7 10

6 TURBO BUTTON

13

ECO IFEEL CLEAN

12

Used to start or stop the fast cooling.(Fast cooling operates at high

16

fan speed with 16Co set temp automatically).

17

7 SWING BUTTON

14 SWING BUTTON

Used to stop or start vertical adjustment

Used to stop or start Horizontal adjustment

louver swinging and set the desired up/down 15 louver swinging and set the desired left/right

airflow direction.

airflow direction.

8 SLEEP BUTTON

15 MUTE BUTTON

Used to set or cancel Sleep Mode operation.

Press it once,the MUTE function will be started.

9 LIGHT BUTTON

Press it again, the MUTE function will be shut off.

When you press this button, all the display of 17 IFEEL BUTTON

indoor unit will be closed.

Used to set IFEEL mode operation. Press it once,

10 CLOCK BUTTON
Used to set the current time.

the IFEEL function will be started. Press it again, the IFEEL function will be shut off. If the IFEEL function can’t be shut off, please try

11 12 TIMER ON/OFF BUTTON

to press this button about 5 seconds.

Used to set or cancel the timer operation.

Advice to put the remote controller in the place where the indoor unit receive signal easily.

13 ECO BUTTON

Advice to cancel the IFEEL mode so as to save

Used to set or cancel Economy Mode operation. energy when stopping the air conditioner.

16 CLEAN BUTTON
Used to set the CLEAN function.

+ 11 12 LOCK
Press them together for 3 seconds to start or stop operation .

LOCK

Indication symbols on LCD:

Cooling indicator Dry indicator Fan only indicator Heating indicator
Nanoe indicator Turbo indicator

Auto fan speed Higher fan speed High fan speed Medium fan speed Low fan speed Lower fan speed
Mute indicator

Smart indicator Sleep indicator Economy indicator Ifeel
Lock

Airflow left and right indicator

Airflow up and down indicator

Note: Each mode and relevant function will be further specified in following pages.

Signal transmit. ON Display set timer OFF Display current time
Display temperature

1

Remote controller

Remote controller

How to Insert the Batteries

Remove the battery cover according to the arrow direction.

Insert new batteries making sure that the (+) and (-) of

1

battery are matched correctly.

Reattach the cover by sliding it back into position.

Note:

Use 2 LR03 AAA(1.5volt) batteries. Do not use rechargeable batteries.

2

Replace batteries with new ones of the same type when the display

becomes dim.

3
Storage and Tips for Using the Remote Controller The remote controller may be stored mounted on a wall with a holder.
Note: The remote controller holder is an optional part.

How to Use
To operate the room air conditioner, aim the remote controller to the signal receptor. The remote controller will operate the air conditioner at a distance of up to 7m when pointing at signal receptor of indoor unit.
CAUTIONS
For appropriate signal transmission between remote controller and indoor unit, keep the signal receiver away from the following items:
Direct sunlight or other strong lights or heat Flat panel television screen or other electrical appliances that react to the remote controller Additionally, the air conditioner will not operate if curtains, doors or other materials block the signals from the remote controller to the indoor unit. If the signal may not be transmitted properly, either move these materials or consult your local dealer.
TEMP
2

TEMP
Signal receptor

Operation instructions

Operation modes

Selecting mode

Each time the “MODE” button is pressed, the operation mode is changed in sequence:

COOLING

DRY

FAN ONLY

HEATING AUTO

Heating mode is NOT available for cooling only air conditioner.

FAN mode
1
Each time the “FAN” button is pressed, the fan speed is changed in sequence:

Auto Higher High Medium

Low Lower

2

At “FAN ONLY” mode, only “Higher”,”High”,”Medium””Low” and “Lower” are available. At “DRY” mode, Fan speed is set at “Auto” automatically, “FAN” button is ineffective in this case.
Setting temperature
“” Press once to raise temperature setting by 1
“” Press once to lower temperature setting by 1

4

MODE ON/OFF

FAN

TURBO

TEMP
3

MUTE

LIGHT

SLEEP

TIMER ON

TIMER OFF

CLOCK

ECO IFEEL CLEAN

Range of available set temperature

*HEATING, COOLING

16-30

Note: Heating mode is NOT available for cooling only models.

Note: Press and hold ”

” button and ” TEMP ” button

together for 3 seconds will alternate the temperature display

between the and °F scale.

Turning on

Press ON/OFF button, when the appliance receives the signal, the RUN indicator of the indoor unit lights up.

SWING, SMART, TIMER ON, TIMER OFF, CLOCK, SLEEP and SUPER operation modes will be specified in the following pages.
Changing modes during operation, sometimes the unit does not response at once. Wait 3 minutes. During heating operation, air flow is not discharged at the beginning. After 25 minutes, the air flow will be discharged until temperature of indoor heat exchanger rises. Wait 3 minutes before restarting the appliance.
3

Operation instructions

Airflow direction control

Airflow direction control

Vertical airflow(Horizontal airflow) is automatically adjusted to a certain angle in accordance with the operation mode after turning on the unit.

Operation mode Direction of airflow

COOLING, DRY
*HEATING, FAN ONLY

horizontal downward

The direction of airflow can be also adjusted to your own
5 requirement by pressing the
“SWING” button of the remote controller.

*Heating mode is only available for heat pump models.

MODE ON/OFF

FAN

TURBO

TEMP

MUTE

LIGHT

SLEEP

TIMER ON

TIMER OFF

CLOCK

ECO IFEEL CLEAN

Vertical airflow control (with the remote controller)

Using remote controller to set various angles of flow or specific angle as you like.

Swinging airflow

Pressing

button once, the vertical adjustment louver

will swing up and down automatically.

Desired direction airflow

Pressing the

button again when the louvers swing

to a suitable angle as desired.

Horizontal airflow control (with the remote controller)
Using remote controller to set various angles of flow or specific angle as you like.

Swinging airflow
Pressing button once, the horizontal adjustment louver will swing left and right automatically.
Desired direction airflow
Pressing the button again when the louvers swing to a suitable angle as desired.

NOTE:This function is to keep global format standardization and for this model isn’t available. You can adjust the horizontal airflow by yourself
Do not turn the vertical adjustment louvers manually, otherwise malfunction may occur. If that happens, turn off the unit first and cut off the power supply, then restore power supply again. It is better not to let the vertical adjustment louver tilt downward for a long time at COOLING or DRY mode to prevent condensed water from dripping.
4

Operation instructions
CLOCK button
You can adjust the real time by pressing CLOCK button, then using “” and “” buttons to get the correct time, press CLOCK button again the real time is set.
Timer mode
It is convenient to set the timer on with TIMER ON button when you go out in the morning to achieve a comfortable room temperature at the time you get home. You can also set timer off at night to enjoy a good sleep.
How to set TIMER ON TIMER ON button can be used to set the timer programming as wished in order to switch on the appliance at your desired time. i) Press TIMER ON button, “ON 12:00” flashes on the LCD, then you can press the “” or “” buttons to select your desired time for appliance on.
Increase
Decrease Press the “” or “” button once to increase or decrease the time setting by 1 minute. Press the “” or “” button 2 seconds to increase or decrease the time setting by 10
minutes. Press the “” or “” button for a longer time to increase or decrease the time by 1 hour.
Note: If you don’t set the time in 10 seconds after you press TIMER ON button, the remote controller will exit the TIMER ON mode automatically.
ii) When your desired time displayed on LCD, press the TIMER ON button and confirm it.
“ON” stops flashing. The TIMER indicator on the indoor unit lights up.
iii) After the set timer displayed for 5 seconds the clock will be displayed on the LCD of the remote controller instead of set timer.
How to cancel TIMER ON Press the TIMER ON button again, the indicator disappears, the TIMER ON mode has been canceled.
Note: It is similar to set TIMER OFF, you can make the appliance switch off automatically at your desired time.
5

Operation instructions
SLEEP mode
SLEEP mode
SLEEP mode can be set in COOLING, HEATING or DRYING operation mode. This function gives you a more comfortable environment for sleep. In SLEEP mode,
The appliance will stop operation automatically after operating for 8 hours. Fan speed is automatically set at low speed. Set temperature will rise by 1 at mostif the appliance operates in cooling mode for 1 hour constantly, then keeps steady. Set temperature will decrease by 3 at most if the appliance operates in heating mode for 3 hours constantly, then keeps steady.
For some models, such as G1Q series
Set temperature will rise by 2 at mostif the appliance operates in cooling mode for 2 hour constantly, then keeps steady. Set temperature will decrease by 2 at most if the appliance operates in heating mode for 2 hours constantly, then keeps steady.
*Note: In cooling mode, if room temperature is 26or above, set temperature will not change.
Note: Heating is NOT available for cooling only air conditioner. Note: Press TURBO ,ON/OFF,FAN, MODE,ECO or SLEEP button cancel SLEEP mode.

TURBO mode

TURBO mode
TURBO mode is used to start or stop fast cooling when the unit is on. TURBO mode can be set when the appliance is in operation or energized. In TURBO mode, you can set airflow direction or timer.

How to set TURBO mode?

Press TURBO button at the cooling,fan only or dry mode.

Result :

At high fan speed ,the set temperature

automatically to 16.

Press TURBO button at the heating mode .

Result :

At AUTO fan speed ,the set temperature

automatically to 30.

How to cancel TURBO mode?

Press TURBO , MODE, FAN, ON/OFF,SLEEP,TURBO or MUTE button.

Result :

The display return to the original mode.. Escape from TURBO mode.

Cancel

6

Operation instructions

LOCK function

LOCK function

Press TIME ON and TIME OFF buttons together for 3 seconds to start LOCK function.

The icon will appears on the the LCD

Press TIME ON and TIME OFF buttons together for 3 seconds again to stop LOCK function.

The icon will disappeared from the the LCD

CLEAN

1

2

Press together

for 3 seconds

MUTE mode

MUTE mode

In this mode, the air conditioner will work with low noise performance.

In this mode, you can start the SLEEP mode at the same time.

Note:

PRESS

• MUTE button is only available in COOLING, HEATING and FAN ONLY mode.

• Press MODE, FAN SPEED, SMART or SUPER button to cancel MUTE mode.

ECO mode

ECO mode

In this mode, the air conditioner will bring you energy saving performance by lower running currency.

Note: ECONOMY button is ineffective in SMART and SUPER mode. SMART and SUPER buttons are not available in ECONOMY mode.

• Press ON/OFF, MODE, TEMP ±, FAN SPEED, SLEEP, QUIET or ECONOMY button to cancel ECONOMY mode.

PRESS

CLEAN

IFEEL function

IFEEL function

The temperature sensor built in remote controller is activated.It can sense its surrounding temperature,

and transmit the signal back the unit,the unit can adjust the temperature so as to provide maximum

comfort.

Note: Advice to put the remote controller in the place where the indoor unit receive signal easily. Advice to cancel the IFEEL mode so as to save energy when stopping the air conditioner.

CLEAN
PRESS

CLEAN function

LOCK function

When the air conditioner is in standby, and the mode of remote controller is in Cooling or Dry, Press CLEAN button to start Clean mode,then the indicator ” ” will display on LCD. .

Clean mode is ineffective in TURBO mode.

Press ON/OFF or MODE button can exit the Clean mode, then the

ECO

IFEEL CLEAN

indicator ” ” will disappear.

After the clean process finish, the air conditioner will return to Cooling or Dry as preset,

PRESS

while the indicator” ” on remote controller will display for about 10 mins.

7

Safety instructions

16. The batteries in remote controller must be recycled or disposed of properly. Disposal of Scrap

1. To guarantee the unit work normally, please read the manual carefully before installation, and try to install strictly according to this manual. 2. Do not let air enter the refrigeration system or discharge refrigerant when moving the air conditioner. 3. Properly ground the air conditioner into the earth. 4. Check the connecting cables and pipes carefully, make sure they are correct and firm before connecting the power of the air conditioner. 5. There must be an air-break switch. 6. After installing, the consumer must operate the air conditioner correctly according to this manual, keep a suitable storage for maintenance and moving of the air conditioner in the future. 7. Fuse of indoor unit:T3.15A 250VAC or T5A 250VAC. Please refer to the screen printing on the circuit board for the actual parameters, which must be consistent with the parameters on the screen printing. 8. For 5K~13K models, fuse of outdoor unit:T15A 250VAC or T 20A 250VAC. Please refer to the screen printing on the circuit board for the actual parameters, which must beconsistent with the parameters on the screen printing 9. For 14K~18K models, fuse of outdoor unit: T 20A 250VAC. 10. For 21K~36K models, fuse of outdoor unit: T 30A 250VAC.

Batteries — Please discard the batteries as sorted municipal waste at the accessible collection point. 17. If the appliance is fixed wiring, 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. 18. 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. 19.The appliance shall be installed in accordance with national wiring regulations. 20. Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. 21. The appliance shall not be installed in the laundry 22.Regarding to installation, please refer to section “Installation instructions”. 23. Regarding to maintenance, please refer to section “Maintenance”. 24. For models using R32 refrigerant, piping connection should be conducted on outdoor side.

11. The installation instructions for appliances that are Preparation before use
intended to be permanently connected to fixed wiring,

and have a leakage current that may exceed 10 mA, shall state that the installation of a residual current

Note

device (RCD) having a rated residual operating current not exceeding 30 mA is advisable

1. When charging refrigerant into the system, make sure to charge in liquid state,if therefrigerant of the

12. Warning: Risk of electric shock can cause injury or appliance is R32.Otherwise, chemical composition

death: Disconnect all remote electric power supplies of refrigerant (R32) inside the system may change

before servicing.

and thus affect performance of the air conditioner

13. The maximum length of the connecting pipe

2. According to the character of refrigerant (R32,the

between the indoor unit and outdoor unit should be less than 5 meters. It will affect the efficiency of the

value of GWP is 675), the pressure of the tube is very high, so be sure to be careful when you install

air conditioner if the distance longer than that length and repair the appliance.

14. This appliance is not intended for use by person 3. If the supply cord is damaged, it must be replaced (including children) with reduced physical, sensory or by the manufacturer, its service agent or similarly

mental capabilities, or lack of experience and

qualified persons in order to avoid a hazard.

knowledge, unless they have been given supervision 4. Installation of this product must be done by

or instruction concerning use of the appliance by a

experienced service technicians professional

person responsible for their safety.Children should be installers only in accordance with this manual.

supervised to ensure that they do not play with the appliance.Cleaning and user maintenance shall not

5. The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the

be made by childrenwithout supervision

copper tube.

15. This appliance can be used by children aged from 8 years and above and personswith reduced physical,

Preset

sensory or mental capabilities or lack of experience

Before using the air conditioner, be sure to check

and knowledge if they have been given supervision or and preset the following.

instruction concerning use of the appliance in a safe 1.Remote Control presetting

way and understand the hazards involved. Children Each time after the remote control is replaced with

shall not play with the appliance. Cleaning and user new batteries or is energized, remote control auto

maintenance shall not be made by children without

presettingheat pump.If the air conditioner you

supervision.

purchased is a Cooling Only one, heat pump remote

controller can also be used.

8

2. Back-light function of Remote Control(optional)

Hold down any button on remote control to activate

ON

the back light. It automatically shuts off 10 seconds

OFF

later. Note: Back-light is an optional function. 3. Auto Restart Presetting The air conditioner has an Auto-Restart function.
Safeguarding the environment

Do not use the power

supply circuit breaker or pull off the plug to turn it off during operation. This may cause a fire due to

Do not touch the operation buttons when your hands are wet.

spark, etc. ON OFF

Do not put any objects on the outdoor unit.

This appliance is made of recyclable or re-usable material. Scrapping must be carried out in

SMART

TEMP.

MODE

SUPER

TEMP.

FAN SPEED

FEEL

SLEEP

CLOCK

TIMER ON

TIMER OFF

QUIET

DIMMER

ECONOMY

compliance with local waste disposal regulations. Before scrapping it, make sure to cut off the mains cord so that the appliance cannot be re-used. For more detailed information on handling and recycling this product, contact your local authorities who deal with the separate collection of rubbish or the shop where you bought the

It is the user’s responsibility to make the appliance be grounded according to local codes or ordinances by a licenced

Turn off the

Do not knit, pull or

applianceby remote press the power supply

control firstly before cord, lest the power

cutting off power supply cord be broken.

supply if malfunction An electric shock or fire

occurs.

is probably caused by

technician.

a broken power supply

cord.

appliance. SCRAPPING OF APPLIANCE

Safety precautions

This appliance is marked according

to the European Directive 2012/19/EC,

Precautions for using R32 refrigerant

Waste Electrical and Electronic Equipment (WEEE). This marking indicates that this product should not be disposed with other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal,recycle it responsibly to promote the sustainable reuse of material resources. To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmental safe recycling.

The basic installation work procedures are the same as the conventional refrigerant(R22 or R410A). However, pay attention to the following points: 1.Transport of equipment containing flammable refrigerants
Compliance with the transport regulations 2.Marking of equipment using signs
Compliance with local regulations 3.Disposal of equipment using flammable refrigerants
Compliance with national regulations 4.Storage of equipment/appliances
The storage of equipment should be in

Safety precautions

accordance with the manufacturer’s instructions.

Symbols in this Use and Care Manual are

interpreted as shown below.

Be sure not to do.

Grounding is essential.

Pay attention to such a situation.

5.Storage of packed (unsold) equipment Storage package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge.

Warning: Incorrect handling could cause a

The maximum number of pieces of equipment

serious hazard, such as death, serious injury, etc. permitted to be stored together will be

determined by local regulations.

Use correct power

supply inaccordance

with the rating plate

requirement. Otherwise, serious faults or hazard may occur or a fire maybe break out.

It is harmful to your health if the cool air reaches you for a long time. It is advisable to let the air flow be

Never insert a stick or similar obstacle to the unit. Since the fan rotates at high speed,

6.Information on servicing 6-1 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 minimised. For repair to the refrigerating

ON OFF
Keep the power supply circuit

deflected to all the this may cause an injury. room.

system, the following precautions shall be complied with prior to conducting work on the system.

breaker or plug from

dirt. Connect the

power supply cord to

Do not repair the

it firmly and correctly,

appliance by yourself.

lest an electric shock Prevent the air flow If this is done

or a fire break out from reachingthe gas incorrectly, it may cause

due to insufficient burners and stove. an electric shock, etc.

6-2 Work procedure Work shall be undertaken under a controlled procedure so as to minimise the risk of flammable gas or vapour being present while the work is being performed.

contact.

9

6-3 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.
6-4 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.
6-5 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 CO2 fire extinguisher adjacent to the charging area.
6-6 No ignition sources No person carrying out work in relation to a refrigeration system which involves exposing any pipe work that contains or has contained flammable refrigerant 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 flammable 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 flammable hazards or ignition risks. “No Smoking” signs shall be displayed.
6-7 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
6-8 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.
6-9 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 7. Repairs to sealed components
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.

10

This shall include damage to cables,

­Leak detection fluids are suitable for use with

excessive number of connections, terminals

most refrigerants but the use of detergents

not made to original specification, damage to

containing chlorine shall be avoided as the

seals, incorrect fitting of glands, etc.

chlorine may react with the refrigerant and

Ensure that apparatus is mounted securely.

corrode the copper pipe-work.

Ensure that seals or sealing materials have not ­If a leak is suspected, all naked flames shall

degraded such that they no longer serve the

be removed/ extinguished.

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

­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

not have to be isolated prior to working on them.

during the brazing process.

8.Repair to intrinsically safe components Do not apply any permanent inductive or

12.Removal and evacuation When breaking into the refrigerant circuit to

capacitance loads to the circuit without

make repairs ­ or for any other purpose ­

ensuring that this will not exceed the permissible voltage and current permitted for

conventional procedures shall be used. However, it is important that best practice is

the equipment in use.

followed since flammability is a consideration.

Intrinsically safe components are the only

The following procedure shall be adhered to:

types that can be worked on while live in the

­Remove refrigerant;

presence of a flammable atmosphere. The test ­Purge the circuit with inert gas;

apparatus shall be at the correct rating.

­Evacuate;

Replace components only with parts specified

­Purge again with inert gas;

by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak. 9.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 10.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 11.Leak detection methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants:
­Electronic leak detectors shall be used to

­Open the circuit by cutting or brazing. 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

detect flammable refrigerants, but the sensitivity may not be adequate, or may need

not close to any ignition sources and there is ventilation available.

re-calibration. (Detection equipment shall be 13.Charging procedures

calibrated in a refrigerant-free area.)

In addition to conventional charging

­Ensure that the detector is not a potential

procedures, the following requirements shall

source of ignition and is suitable for the

be followed:

refrigerant used.

­Ensure that contamination of different

­Leak detection equipment shall be set at a

refrigerants does not occur when using

percentage of the LFL of the refrigerant and

charging equipment.

shall be calibrated to the refrigerant employed ­Hoses or lines shall be as short as possible to

and the appropriate percentage of gas (25 % maximum) is confirmed.
11

minimise the amount of refrigerant contained in them.

­Cylinders shall be kept upright.

15.Labelling

­Ensure that the refrigeration system is earthed Equipment shall be labelled stating that it has

prior to charging the system with refrigerant.

been de-commissioned and emptied of

­Label the system when charging is complete (if not already).
­Extreme care shall be taken not to overfill the refrigeration system.

refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contain flammable refrigerant.

Prior to recharging the system it shall be

16.Recovery

pressure tested with OFN. The system shall be leak tested on completion

When removing refrigerant from a system, either for servicing or decommissioning, it is

of charging but prior to commissioning.

recommended good practice that all

A follow up leak test shall be carried out prior to leaving the site.

refrigerants are removed safely. When transferring refrigerant into cylinders,

14.Decommissioning

ensure that only appropriate refrigerant

Before carrying out this procedure, it is essential that the technician is completely

recovery cylinders are employed. Ensure that the correct number of cylinders

familiar with the equipment and all its detail.

for holding the total system charge is available

It is recommended good practice that all refrigerants are recovered safely.

All cylinders to be used are designated for the recovered refrigerant and labelled for that

Prior to the task being carried out, an oil and

refrigerant (i.e. special cylinders for the

refrigerant sample shall be taken in case analysis is required prior to re-use of

recovery of refrigerant). Cylinders shall be complete with pressure

reclaimed refrigerant. It is essential that

relief valve and associated shut-off valves in

electrical power is available before the task is commenced.

good working order. Empty recovery cylinders are evacuated and,

a) Become familiar with the equipment and its

if possible, cooled before recovery occurs.

operation. b) Isolate system electrically.

The recovery equipment shall be in good working order with a set of instructions

c) Before attempting the procedure ensure

concerning the equipment that is at hand and

that:

shall be suitable for the recovery of

­Mechanical handling equipment is available, flammable refrigerants.

if required, for handling refrigerant cylinders; In addition, a set of calibrated weighing scales

­All personal protective equipment is available shall be available and in good working order.

and being used correctly;

Hoses shall be complete with leak-free

­The recovery process is supervised at all

disconnect couplings and in good condition.

times by a competent person;

Before using the recovery machine, check

­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 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

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 recovery 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.

closed off.

k) Recovered refrigerant shall not be charged

into another refrigeration system unless it

has been cleaned and checked.

12

Only electric heating to the compressor body

Mechanical connectors used indoors shall

shall be employed to accelerate this process.

comply with ISO 14903. When mechanical

When oil is drained from a system, it shall be

connectors are reused indoors, sealing parts

carried out safely.

shall be renewed. When flared joints are

When moving or relocating the air conditioner,

reused indoors, the flare part shall be

consult experienced service technicians for

re-fabricated.

disconnection and reinstallation of the unit

The installation of pipe-work shall be kept to

Do not place any other electrical products or

a minimum.

household belongings under indoor unit or

Mechanical connections shall be accessible

outdoor unit. Condensation dripping from the

for maintenance purposes.

unit might get them wet, and may cause

Explanation of symbols displayed on the indoor

damage or malfunction of your property.

unit or outdoor unit.

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.

This symbol shows that this appliance uses

WA R N I N G

[symbol ISO 7010-W021

a If

flammable refrigerant. the refrigerant is leaked

and

exposed

to

(2011-05)] an external ignition source, there is a risk

Caution, risk of fire

of fire

WA R N I N G
Waring;low burning velocity material

A2L symbol

This symbol shows that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire

[symbol ISO This symbol shows that the operation 7000-0790 manual should be read carefully.
CAUTION (2004-01)]

This symbol shows that a service [symbol ISO personnel should be handling this CAUTION 7000-1659 equipment with reference to the (2004-01)] installation manual.

To keep ventilation openings clear of obstruction. The appliance shall be stored in a

CAUTION

[symbol ISO 1641-0790

This symbol shows that information is available such as the operating manual

or

(2004-01)] installation manual.

Installation instructions well-ventilated area where the room size
corresponds to the room area as specified for

operation. The appliance shall be stored in a room

Installation diagram

without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example

Distance from wall should be over 50mm

Distance from ceiling should be over 200 mm

an operating electric heater).

Any person who is involved with working on or

breaking into a refrigerant circuit should hold

a current valid certificate from an industryaccredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an

Distance from the obstacle should be over 3000mm.
Distance from floor should be over 2500mm.

Distance from the wall should be over 50mm

industry recognised assessment specification. Servicing shall only be performed as

Distance from the obstacle should be

recommended by the equipment manufacturer.

over 500mm.

Maintenance and repair requiring the

assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. Do not use means to accelerate the defrosting

Air intake distance from the wall should be over 250mm

Air intake distance from the wal should be over 250mml

process or to clean, other than those

recommended by the manufacturer. Appliance shall be installed, operated and stored in a room with a floor arealarger than 10 m2. The installation of pipe- work shall be kept to a a room with a floor area largerthan 10 m2.

shaoiruoldutbleet odvisetra5n0ce0mfrmom the wall

over 250mm

The pipe-work shall be complianced with national gas regulations. The maximum refrigerant charge amount is

Above figure is only a simple presentation of the unit, it may not match the external appearance of the unit you purchased.

2.5 kg.The specific refrigerant charge is

Installation must be performed in accordance with

based on the nameplate of the outdoor unit

the national wiring standards by authorized personnel only.

13

Select the installation locations

Indoor unit installation

Location for Installing Indoor Unit

Where

there

is

no

obstacle

near Indoor

unit Pipe

length

the air outlet andair can be easily blown to every corner.

is 15 meters Max.

Height should be less than 5m

2. Where piping and wall hole can be easily arranged. 3. Keep the required space from

the unit to the ceiling and wall

according to the installation diagram on previous page.

4. Where the air filter can be easily removed.

Outdoor unit

5. Keep the unit and remote controller 1m or more

apart from television, radio etc.

6. Keep as far as possible from fluorescent lamps.

7. Do not put anything near the air inlet to obstruct it from air absorption. 8. Install on a wall that is strong enough to bear the

weight of the unit. 9. Install in a place that will not increase operation noise and vibration.

10. Keep away from direct sunlight and heating

sources. Do not place flammable materials or combustion apparatuses on top of the unit.

Location for Installing Outdoor Unit

1. Installing the Mounting Plate Decide an installing location for the mounting plate according to the indoor unit location and pipe direction. Keep the mounting plate horizontally with a horizontal ruler or level. Drill holes of 32mm in depth on the wall for fixing the plate. Insert the plastic plugs to the hole, fix the mounting plate with tapping screws. Inspect if the mounting plate is well fixed. Then drill a hole for pipe.

Tapping screw

Mounting plate

Note: The shape of your mounting plate may be different from the one above, but the installation method is similar.
Note: As the above figure shown, the six holes matched with tapping screw on the mounting plate must be used to fix the mounting plate, the others are prepared.

Height should be less than 5m
Indoor Outdoor

1. Where it is convenient to install and well ventilated.

2. Avoid installing it where flammable gas Outdoor unit could leak.

3. Keep the required distance apart from the wall.

Pipe length is 15 meters Max.

The pipe length between indoor and

2. Drill a Hole for Pipe
Decide the position of hole for pipe according to the location of mounting plate. Drill a hole on the wall about 50mm. The hole

Wall hole sleeve ( hard polythene tube
prepared by user)
5mm (tilt downward)

outdoor unit should be not more than

should tilt a littledownward toward outside.

5 meters in factory default status, but it can go up to maximum 15 meters with

Install a sleeve through the wall hole to keep the wall tidy and clean.

additional refrigerant charge.

3. Indoor Unit Pipe Installation

6. Keep the outdoor unit away

Put the pipes (liquid and gas pipe) and cables

from greasy dirt, vulcanization

through the wall hole from outside or put them

gas exit.

7. Avoid installing it by the

Indoor unit

roadside where there is a risk

of muddy water.

8. A fixed base where it is not subject to increased

operation noise.

through from inside after indoor pipe and cables connection complete so as to connect to outdoor unit. Decide whether saw the unloading piece off in accordance with the pipe direction.(as shown below) Pipe direction

9. Where there is not any blockage of the air outlet.

Trough

10. Avoid installing under direct sunlight, in an aisle

Knock-down panel

4

or sideway, or near heat sources and ventilation fans.

1

3

Keep away from flammable materials, thick oil fog,

and wet or uneven places.

Model

Max. allowed pipe

Limit of pipe Limit of Elevation Required amount of

length without additional length (m) Difference H (m) additional refrigerant

refrigerant (m)

(g/m)

5K~18K

5

15

5

20

21K~25K

5

15

5

30

28K~36K

5

15

5

40

If the height or pipe length is out of the scope of the

table, please consult the dealer.

Cut off the Knock-down panel

2

along the trough using needle

Note: When installing the pipe at the directions 1,2 or 4, saw

nose pliers or other suitable the corresponding unloading

tool.

piece off the indoor unit base.

After connecting pipe as required, install the drain

hose. Then connect the power cords. After

connecting, wrap the pipes, cords and drain hose

together with thermal insulation materials.

14

Pipe Joints Thermal Insulation: Wrap the pipes joints with thermal insulation materials and then wrap with a vinyl tape.

wrapped with vinyl type

Thermal insulation

Pipes Thermal Insulation:

a. Place the drain hose under the pipes. b. Insulation material uses polythene Thermal insulation tube Notfeo:aDmraionvheors6emismpreinpathreidckbnyeussse.r.(juPsotwaesrcLchaoerrgdmeaptiicp)e

Drain pipe should point downward

for easy drain flow. Do not arrange

the drain pipe twisted, sticking out

or wave around, do not immerse

Small

the end of it in water.

Drain hose

pipe

(prepared by user)

If an extension drain hose is connected to the drain

pipe, make sure to thermal insulated when passing

along the indoor unit.

When the pipes is directed to the right, pipes, power Cord and drain pipe should be thermal insulated and fixed onto the back of the unit with a pipe fixer.

Insert here

large pipe
drain small hose pipe

large pipe
drain small hose pipe

Base

Pipe fixer Base

Pipe fixer Base

Hook here

A. Insert the pipe fixer to the slot. B. Press to hook the pipe fixer onto the base.

Piping Connection:

a.Before unscrewing the big and the small sealing caps, press the small sealing cap with the finger until the exhaust noise stops, and then loosen the finger.
b.Connect indoor unit pipes with two wrenches. Pay special attention to the allowed torque as shown below to prevent the pipes, connectorsand flare nuts from being deformed and damaged.
c. Pre-tighten them with fingers at first, then use the wrenches.

For ON-OFF appliance

Model
5~12K,13~18K,21~24K

Pipe size Liquid Side (6mm or 1/4 inch)

Torque Nut width Min.thickness

15~20N·m 17mm

0.5mm

18K#,22,24K#,28,30,36K 5~10K,12K 12K#,14,15,18K 18K#,22,24,28,30,36K 36K#

Liquid Side (9.53mm or 3/8 inch) 30~35N·m Gas Side (9.53mm or 3/8 inch) 30~35N·m Gas Side (12mm or 1/2 inch) 50~55N·m Gas Side (16mm or 5/8 inch) 60~65N·m Gas Side (19mm or 3/4 inch) 70~75N·m

22mm 22mm 24mm 27mm 32mm

0.6mm 0.6mm 0.6mm 0.6mm 1.0mm

Note: The unit of 12K#,18K#,24K#,36K# is bigger than the unit of 12K,18K,24K,36K.

4. Connecting of the Cable

Indoor Unit

Connect the power cord to the indoor unit by connecting the wires to the terminals on the control board individuallyin accordance with the outdoor unit connection.
Note: For some models, it is necessary to remove the cabinet to connect to the indoor unit terminal.

Outdoor Unit

1. Remove the access door from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as follows.
2. Secure the power cord onto the control board w. ith cable clamp.
3. Reinstall the access door to the original position with the screw.
4. Use a recognized circuit breaker for 24K model between the power source and the unit. A disconnecting device to adequately disconnect all supply lines must be fitted.

Front panel Terminal (inside)

Indoor unit

Cabinet Chassis

Access door Terminal(inside)

If you don’t hear the exhaust noise, please contact with the merchant.

Outdoor unit
The figures in this manual are based on the external

For Inverter appliance

Model

Pipe size

Torque Nut width Min.thickness

view of a standard model. Consequently, the shape may differ from that of the air conditioner you have

5k~12K,13k~18K,21~24K Liquid Side (6mm or 1/4 inch) 15~20N·m 17mm

0.5mm

selected.

18K#, 21K~36K 5K~13K 12K#, 13K~18K 18K#, 21K~36K 36K#

Liquid Side (9.53mm or 3/8 inch) 30~35N·m Gas Side (9.53mm or 3/8 inch) 30~35N·m Gas Side (12mm or 1/2 inch) 50~55N·m Gas Side (16mm or 5/8 inch) 60~65N·m Gas Side (19mm or 3/4 inch) 70~75N·m

22mm 22mm 24mm 27mm 32mm

0.6mm 0.6mm 0.6mm 0.6mm 1.0mm

Note: The unit of 12K#,18K# and 36K# is bigger than the unit of 12K,

Caution:
1. Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring, refer to the circuit diagram posted on the inside of the access door. 2. Comfirm that the cable thickness is as specified in the power source specification.

18K and 36K.

3. Check the wires and make sure that they are all tightly

fastened after cable connection.

Note: Piping connection should be conducted on outdoor 4. Be sure to install an earth leakage circuit breaker in wet or

side !

15 moist areas.

Cable Specifications for Inverter appliance

Capacity (Btu/h) 5K~13K 5K~13K 14K~18K 14K~18K
21K~36K 21K~30K 21K~24K

Power cord

Type

Normal cross – sectional area

Power connecting cord

Type

Normal cross – sectional area

H07RN-F H07RN-F H05VV-F IS:694

0.75~1.5mm2X3 0.75~1.5mm2X3 0.75~1.5mm2X3 0.75~1.5mm2X3

H05RN-F H07RN-F H07RN-F IS:9968

0.75mm2X4 0.75~1.5mm2X5 0.75~1.5mm2X4 0.75~1.5mm2X4

H07RN-F 1.5mm2X3
H07RN-F 1.5mm2X3 H05VV-F 1.5/2.5mm2X3

H05RN-F H07RN-F H07RN-F

0.75mm2X4
1.5mm2X5 1.5/2.5mm2X4

IS:694 1.5/2.5mm2X3 IS:9968 1.5/2.5mm2X4

H07RN-F 2.5mm2X3

H05RN-F 0.75mm2X4

H07RN-F H07RN-F H05VV-F

2.5mm2X3 2.5mm2X3 2.5mm2X3

H07RN-F H07RN-F H07RN-F

1.0mm2X4 2.5mm2X5 2.5mm2X4

IS:694

2.5mm2X3

IS:9968

2.5mm2X4

H05VV-F 1.5mm2X3

H07RN-F 1.5mm2X4

NOTE: 1.K* means the power supply of this model comes from indoor unit. 2.K* indicates indoor power supply unit model with power line and
plug. 3.For 14K~18K* models under Tropical(T3) Climate condition, the
normal cross-sectionl area of Power cord and Power connecting cord is 2.5mm2×4. Attention:
The plug must be accessible even after the installation of the appliance in case there is a need to disconnect it. If not possible, connect appliance to a double-pole switching device with contact separation of at least 3 mm placed in an accessible position even after installation.
Cable Specifications for ON-OFF appliance

Capacity (Btu/h)
5K~13K 14K~24K 18K~30K
18K~30K 24K~36K 24K~36K

Power cord

Type

Normal cross – sectional area

Power connecting cord

Type

Normal cross – sectional area

Power connecting cord1

Type

Normal cross – sectional area

Main power supply

H05VV-F

0.75~1.5mm2X3

H07RN-F H05RN-F

1.5mm2X3 0.75~1.0mm2X3

H05RN-F

0.75mm2X2 (Heat-pump)

To indoor

H05VV-F 1.5~2.5mm2X3 H07RN-F

1.5~2.5mm2X3

H05RN-F

0.75mm2X2 (Heat-pump)

To indoor

H05VV-F
H07RN-F H07RN-F H07RN-F

1.5~2.5mm2X3
2.5mm2X3 2.5~4.0mm2X3
1.5mm2X5

H07RN-F
H05RN-F H07RN-F H05RN-F H07RN-F
H05RN-F

1.5~2.5mm2X4 H05RN-F
1.0mm2X3 1.0mm2X4Cooling only H05RN-F
0.75mm2X4 H05RN-F 1.0mm2X4 0.75mm2X4 H05RN-F

0.75mm2X2 To indoor (Heat-pump&Optional)

0.75mm2X3 (Heat-pump)

To outdoor

0.75mm2X2 (Heat-pump&Optional) To outdoor

0.75mm2X2 (Heat-pump)

To outdoor

NOTE:
The cord may be different from the list above. It may be used as the next list. And it can be larger.0-6A, use 0.75mm 2 or 18AWG. 0-10A, use 1mm2 or 16AWG. 0-16A, use 1.5mm 2 or 14AWG 0-20A, use 2.5mm2 or 14AWG. 0-25A, use 2.5mm 2or 12AWG. 0-32A, use 4mm 2

Wiring diagram

Outdoor unit installation

1. Install Drain Port and Drain Hose (for heat-pump

model only)

The condensate drains

Rubber pad (optional) Place under the leg pedestal

from the outdoor unit when

the unit operates in heating

mode. In order not to

disturb your neighbor and

Washer

protect the environment, install

Drain port Drain hose

a drain port and a drain hose to direct (prepared by user)

the condensate water. Just install the drain port and

rubber washer to the chassis of the outdoor unit,

then connect a drain hose to the port as the right

figure demonstrates.

2. Install and Fix Outdoor Unit Fix with bolts and nuts tightly on a flat and strong floor. If installed on the wall or roof, make sure to fix the supporter well to prevent it from shaking due to serious vibration or strong wind. 3. Outdoor Unit Piping Connection
Remove the valve caps from the 2-way and 3-way valve. Connect the pipes to the 2-way and 3-way valves separately according to the required torque.

4. Outdoor Unit Cable Connection (see previous page)

Air purging

The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. After connecting the indoor and outdoor units, release air and moisture from the refrigerant cycle using a vacuum pump, as shown below.
Note: To protect the environment, be sure not to discharge the refrigerant to the air directly.

Warning: Before obtaining access to terminals, all supply circuits must be disconnected. Make sure that the color of the wires in the outdoor unit and terminal No. are the same as those of the indoor unit, the details please refer to the wiring diagram which is near the terminal inside the unit.

Vacuum pump

indoor unit

Refrigerant flow direction

2-way valve

3-way valve diagram

3-way valve

connect to indoor unit

(6) Open 1/4 turn

Service port
(2) Turn (8) Tighten

(7) Turn to fully open the valve
(1) Turn

(7) Turn to fully open the valve valve cap
(1) Turn (8) Tighten

Valve cap

(8) Tighten

Connect to outdoor unit

open position spindle
needle

Valve core

service port cap

16

How to Purge Air Tubes:
(1) Unscrew and remove caps from 2 and 3-way valves. (2) Unscrew and remove cap from service valve. (3) Connect vacuum pump flexible hose to the service valve. (4) Start vacuum pump for 10-15 minutes until reaching a vacuum of 100Pa absolutes. (5) With vacuum pump still running close the low .pressure knob on vacuum pump manifold. Then stop the vacuum pump. (6) Open 2-way valve ,1/4 turn, then close it after 10 seconds. Check tightness of all joints using liquid soap or an electronic leak detector (7) Turn 2 and 3-way valves stem to fully open the valves. Disconnect the flexible vacuum pump hose. (8) Replace and tighten all valve caps.

Maintenance

Front panel maintenance

Cut off the power supply

a

Turn off the appliance first before disconnecting from power supply.

Grasp position “a”

and pull outward to

remove the front panel.

a

Wipe with a soft and dry cloth.
Use soft moisture cloth to clean if the front panel is very dirty;

Never use volatile
Use a dry and substance such as gasoline soft cloth to or polishing powder to clean
clean it. the appliance.

Protection

Operating condition

Operating temperature for Inverter appliance

Temperature Cooling operation Heating operation Drying operation

Indoor max temperature min

32 21

27 7

32 18

Outdoor max temperature min

note note

24 -15

43 21

NOTE: Optimum performance will be achieved within these operating temperature. If air conditioner is used outside of the above conditions, the protective device may trip and stop the appliance. Normally,the outdoor max temperature is 43,but some models will be achieved 46,48,or 50.For Tropical (T3) Climate condition models, the outdoor max temperature is 55 .

For some models, can keep cooling at -15 outdoor ambient via unique design. Normally, optimum cooling performance will be achieved above 21 . Please consult the merchant to get more information.
For some models, can keep heating at -15 outdoor
ambient , some models heat at -20 outdoor ambient, even heat at lower outdoor ambient The temperature of some products is allowed beyond the range. In specific situation, please consult the merchant.
When relative humidity is above 80%, if the air conditioner runs in COOLING or DRY mode with door or window
opened for a long time, dew may drip down from the outlet.

Operating temperature for ON-OFF appliance
The protective device maybe trip and stop the appliance in the cases listed below

Never sprinkle water onto the indoor unit

Reinstall and shut the

front panel.

Reinstall and shut the front panel by

pressing position “b” downward.

b

b

Dangerous! Electric shock!

Air filter maintenance

Stop the appliance, cut off

Clean and reinstall the

the power supply and remove air filter.

the air filter.

If the dirt is conspicuous, wash it with a solution of

detergent in lukewarm

water.After cleaning,

dry well in shade.

1

23
1.Open the front panel. 2.Press the handle of the filter gently from the front. 3.Grasp the handle and slide out the filter.

Close the front panel again It is necessary to clean the air filter
after using it for about 100 hours.
Clean the air filter every two weeks if the air conditioner operates in an extremely dusty environment.

Outdoor air temperature is over 24oC HEATING Outdoor air temperature is below -7oC
Room temperature is over 27oC
note COOLING
Room temperature is below 21oC DRY Room temperature is below 18oC
NOTE: Normally,the outdoor max temperature is 43,but some models will be achieved 46,48,or 50.For Tropical (T3) Climate condition models, the outdoor max temperature is 55 . The temperature of some products is allowed beyond the range. In specific situation, please consult the merchant. If the air conditioner runs in COOLING or DRY mode withdoor or window opened for a long time when relative humidity is above 80%,dew may drip down from the outlet.
Noise pollution
Install the air conditioner at a place that can bear its weight in order to operate more quietly. Install the outdoor unit at a place where the air discharged and the operation noise would not annoy your neighbors. Do not place any obstacles in front of the air outlet of the outdoor unit lest it increases the noise level.
17

Features of protector
1. The protective device will work at following cases. Restarting the unit at once after operation stops or changing mode during operation, you need to wait for 3 minutes. Connect to power supply and turn on the unit at once, it may start 20 seconds later.
2. If all operation has stopped, press ON/OFF button again to restart, Timer should be set again if it has been canceled.
Features of HEATING mode
Preheat
At the beginning of the HEATING operation, the airflow from the indoor unit is discharged 2-5 minutes later.
Defrost
In HEATING operation the appliance will defrost (de-ice) automatically to raise efficiency. This procedure usually lasts 2-10 minutes. During defrosting, fans stop operation. After defrosting completes, it returns to HEATING mode automatically. Note: Heating is NOT available for cooling only air conditioner models.

Troubleshooting

The following cases may not always be a malfunction, please check it before asking for service.

Trouble
Does not run
No cooling or heating air

Analysis
1. If the protector trip or fuse is blown. 2. Please wait for 3 minutes and start again, protector device may be preventing unit to work. 3. If batteries in the remote controller exhausted. 4. If the plug is not properly plugged.
1. Is the air filter dirty 2. Are the intakes and outlets of the air conditioner blocked 3. Is the temperature set properly

Ineffective control
Does not operate immediately

If strong interference(from excessive static electricity discharge, power supply voltage abnormality)presents, operation will be abnormal. At this time, disconnect from the power supply and connect back 2-3 seconds later.
Changing mode during operation, 3 minutes will delay.

Trouble

Analysis

A sound of flowing water Caused by the flow of refrigerant in the

air conditioner, not a trouble.

Defrosting sound in heating mode.

Cracking sound is heard The sound may be generated by the expansion or contraction of the front panel due to change of temperature.

Spray mist from the outlet Mist appears when the room air becomes very cold because of cool air discharged from indoor unit during COOLING or DRY operation mode.
The compressor indicator The unit is shifting from heating mode (red) lights on constantly, to defrost.The indicator will lights off and indoor fan stops. within ten minutes andreturns to
heating mode.
Display introduction

NO

Display

Introduction

1
2
3 4 5 6 7 8 9 10 11 12 13
14 AI
Example:

Temperature indicator Display set temperature. It shows FC after 200 hours of usage as reminder to clean the filter.After filter cleaning press the filter reset button located on the indoor unit behind the front panel in order to reset the display.(optional)
Running indicator It lights up when the AC is running. It flashes during defrosting.
Timer indicator
It lights up during set time.
Sleep indicator It lights up in sleep mode Compressor indicator It lights up when the compressor is on
Mode indicator Heating displays orange,others display white
Fan speed indicator
Signal Receptor
Smart WIFI indicator It lights up during WIFI is on
NANOE indicator It lights up in NANOE mode.
FAN ONLY mode indicator It lights up in FAN ONLY mode
Airflow Follow You/Airflow Avoid You indicator Humidity indicator It lights up in humidity mode. Artificial Intelligence Smart Running Indicator It lights up in AI mode

1

2 3 45

8

8

1

don’t run
Peculiar odor

This odor may come from another source such as furniture, cigarette etc, which issucked in the unit and blows out with the air.

3

2

4

The symbols may be different from these models, but the functions are similar.

18

Emergency button A

A

Pressing this button can let the AC run or stop.
The symbol may be different from your model, but the button is similar.

19

Specifications in this document are subject to change without notice, in order that Hitachi-Johnson Controls Air Conditioning, Inc. may bring the latest innovations to their customers.
Hitachi-Johnson Controls Air Conditioning, Inc.

© 2022 Hitachi- Johnson Controls Air Conditioning, Inc.

2022.05 Version.A Printed in China

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