NEC RSC1014 Series Room Air Conditioner Owner’s Manual

NEC RSC1014 Series Room Air Conditioner

Product Information

• Specifications:
  • Model Numbers: RSC1014, RSC1212, RSC1814, RSC2414, RSC2414PF, RSC2415, RSC1215, RSH1225, RSH1024, RSH1222, RSH1824, RSH1825, RSH2424, RSH2424PF, RSH2425
  • Brand: NEC
  • Type: Room Air Conditioner

Product Usage Instructions

• Safety Precautions
  • Before using the air conditioner, it is important to follow these safety precautions:
• Warning:
  • Ensure proper plug-in of the power plug.
  • Do not modify the power cord length or share the outlet to prevent electric shock or fire.
  • Do not operate the air conditioner with wet hands.
  • If any abnormality occurs (e.g., smell of burning), stop the air conditioner and disconnect the power plug or turn off the breaker.
  • Do not damage or use an unspecified power cord. Contact the manufacturer or a qualified person for replacement.
  • Do not insert anything into the air inlet or air outlet.
  • Repair or relocation should not be done by the customer. Contact the manufacturer or a qualified service agent.
• Caution:
  • When removing the air filter, avoid touching the metal parts of the indoor unit.
  • Do not clean the air conditioner with water.
  • Ensure proper ventilation when using the air conditioner together with a stove or other heat sources.
  • Switch off and turn off the circuit breaker before cleaning the unit.
  • Avoid applying insecticides or flammable sprays near the air conditioner.
  • Avoid placing pets or house plants in direct airflow.
  • Avoid placing stoves or other objects in direct airflow.
  • Do not leave the air conditioner on a damaged installation stand.
  • Avoid stepping on the indoor/outdoor unit and placing objects on it.
  • Do not insert hands through vanes while the air conditioner is operating.
  • Do not use the air conditioner for special purposes other than its intended use.
  • If the unit will not be used for a long time, turn off the circuit breaker.
  • Avoid stepping onto an unstable bench when cleaning and maintaining the unit.
  • Avoid operating the unit for a long time in high humidity conditions, such as leaving a door or window open.
• Operating Instructions
  • Preparation before Operation:
  • Ensure the power plug is properly plugged in.
  • Make sure the air filter is clean and properly installed.
  • Check that the circuit breaker is turned on.
  • Set the desired temperature and fan speed using the remote control.
  • Remote Control Features:
  • The remote control allows you to adjust various settings of the air conditioner, including temperature, fan speed, and operation mode.
  • Refer to the remote control manual for detailed instructions on how to use each feature.
  • Operation Mode Selection:
  • The air conditioner offers different operation modes to suit your needs:
  • Cooling Mode: Cools the room by removing heat and reducing humidity.
  • Heating Mode: Provides warmth by generating heat.
  • Dry Mode: Reduces humidity without significant cooling or heating.
  • Fan Mode: Circulates air without cooling or heating.
  • Auto Mode: Automatically adjust the operation mode based on the room temperature.
• Additional Features:
  • The air conditioner may have additional features such as:
  • Sleep Mode: Adjusts the temperature and fan speed for a comfortable sleep environment.
  • Timer: Allows you to schedule the air conditioner to turn on or off at specific times.
  • Eco Mode: Optimizes energy usage for efficient operation.
• Care and Maintenance
  • To ensure proper functioning and longevity of the air conditioner, follow these care and maintenance guidelines:
• Care and Maintenance:
  • Regularly clean the air filter to remove dust and debris.
  • Keep the indoor and outdoor units free from obstructions and clean them as needed.
  • Check for any leaks or abnormal noises during operation.
• Operation Tips:
  • Close doors and windows to prevent outside air from entering the room while using the air conditioner.
  • Avoid placing objects near the air conditioner that may obstruct airflow.
  • Set the temperature and fan speed according to your comfort level.
• Troubleshooting Tips
  • If you encounter any issues with the air conditioner, refer to the troubleshooting tips in the user manual.
  • If the problem persists, contact the manufacturer or a qualified service agent.
• FAQ
  • Q: How often should I clean the air filter?
  • A: It is recommended to clean the air filter every 2-4 weeks or as needed, depending on the usage and air quality.
  • Q: Can I use the air conditioner in a high-humidity environment?
  • A: While the air conditioner can operate in high humidity conditions, it is advisable to limit the exposure to prolonged high humidity as it may affect performance and efficiency.
  • Q: Can I install the air conditioner myself?
  • A: It is recommended to have the air conditioner installed by a qualified professional to ensure proper installation and avoid any potential hazards.

Safety precautions

• To prevent injury to the user or other people and property damage, the following instructions must be followed.
  • Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness is classified by the following indications.

WARNING

• This symbol indicates the possibility of death or serious injury.

CAUTION

• This symbol indicates the possibility of injury or damage to properties only.

Installation precautions

WARNING

• Do not install, remove, and reinstall the unit by yourself.
• Improper installation will cause water leakage, electrical shock, or fire. Please consult an authorized dealer or specialist for the installation work. Please note fault caused by improper installation is not covered by warranty.
• The unit must be installed in an easily accessible area. Any additional cost required to hire special equipment to service the unit will be the responsibility of the customer

WARNING

• Plug in the power plug properly.
  • Otherwise, it will cause electrical shock or fire due to heat generation.
• Do not operate or stop the unit by inserting or pulling out the power plug.
  • It will cause electrical shock or fire due to heat generation.
• Do not damage or use an unspecified power cord.
  • It will cause electrical shock or fire.
  • If the supply cord is damaged, it must be replaced by the manufacturer its service agent, or a similarly qualified person to avoid a hazard.
• Do not modify the power cord length or share the outlet with other appliances.
  • It will cause electrical shock or fire due to heat generation.
• Do not operate with a wet hand.
  • It may cause electrical shock.
• Do not insert anything into the air inlet/air outlet.
  • Since the fan rotates at high speed, this may cause an injury or damage to the unit.
• Do not expose the skin directly to cool air for long periods.
  • This could damage your health.
• When an abnormality (smell of burning, etc) occurs, stop the air conditioner, and disconnect the power plug or turn off the breaker.
  • If the unit continues to be operated in an abnormal condition, it may cause a fire, damage, etc. In this case, consult your dealer.
• Repair or relocation should not be done by the customer.
  • If this is done incorrectly, it may cause a fire, electric shock, injury by dropping of the unit, water leakage, etc. Consult your dealer.

CAUTION

• Contact the authorized Service technician for repair or maintenance of this unit.
• Contact the installer for the installation of this unit.
• The air conditioner is not intended for use by young children or infirm persons without supervision.
• Young children should be supervised to ensure that they do not play with the air conditioner.

Caution

• When the air filter is to be removed, do not touch the metal parts of the indoor unit.
  • It may cause an injury.
  • Should be disconnected from the supply
• Do not clean the air conditioner with water.
  • Water may enter the unit and degrade the insulation. It may cause an electric shock.
• Ventilate well when used together with a stove, etc.
  • An oxygen shortage may occur.
• When the unit is to be cleaned, switch off, and turn off the circuit breaker.
  • Since the fan rotates at high speed during operation, it may cause an injury.
• Do not put a pet or house plant where it will be exposed to direct airflow.
  • This could injure the pet or plant.
• Do not leave on installation stand which is damaged.
  • The unit may drop or fall and cause an injury.
• Do not apply an insecticide or flammable spray.
  • It may cause a fire or deformation of the cabinet.
• Do not put a stove, etc. where is exposed to direct airflow.
  • It may affect combustion.
• Do not step on the indoor/outdoor unit and do not put anything on it.
  • It may cause an injury through dropping or falling down.
• Do not insert hands through vanes when the air conditioner is operating.
  • It will cause an injury by the rotating blower.
• When the unit is not going to be used for a long time, turn off the circuit breaker.
  • If not, dirt may collect and cause a fire.
• Do not step onto an unstable bench when cleaning and/or maintaining the unit.
  • It may cause an injury, etc. by falling.
• Do not use it for special purposes.
  • Do not use this air conditioner to preserve precision devices, food, animals, plants, and art objects.
  • It may cause deterioration of quality, etc.
• Do not operate for a long time in high humidity, e.g. leaving a door or window open.
  • In the cooling mode, if it is operated in a room with high humidity (80%RH or more) for a long time, water condensed in the air conditioner may drop and may wet and spoil furniture, etc.

Preparation before operation

How to Insert the Batteries

1. Remove the battery cover by pulling it according to the arrow direction.
2. Insert new batteries making sure that the (+) and (-) of the battery are installed correctly.
3. Reattach the cover by sliding it back into position.
   • NOTES: Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries.

Storage and Tips For Using the Remote Control

• The remote control may be stored and mounted on a wall.
• To operate the room air conditioner, aim the remote control at the signal receptor.

Signal Receptor
Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.)

Operation Indication Lamps

• On/Off: Lights up during the system operation.
• Sleep Mode: Lights up during Sleep Mode Auto operation.
• Timer: Lights up during Timer operation.
• Defrost Mode: Lights up during Defrost Mode or Hot Start operation (Heat pump model only)
• OUTDOOR UNIT OPERATION: Lights up during outdoor unit operation. (Cooling model only)

About the remote control on the system

The remote control transmits the signals to the system.

Features of the Remote Control- Door Closed

1. START/STOP BUTTON

   • Operation starts when this button is pressed and stops when the button is pressed again.

2. OPERATION MODE SELECTION BUTTON

   • Used to select the operation mode.

3. ROOM TEMPERATURE SETTING BUTTONS
   

   • Used to select the room temperature.

4. INDOOR FAN SPEED SELECTOR

   • Used to select fan speed in four steps low, medium, high, or CHAOS.

5. JET COOL

   • Used to start or stop the speed cooling. (Speed cooling operates super high fan speed in cooling mode.)

6. CHAOS SWING BUTTON

   • Used to stop or start louver movement and set the desired up/down airflow direction.

Operation Mode

Features of the Remote Control- Door Opened

1. ON/OFF TIMER BUTTONS
   • Used to set the time of starting and stopping operation.
2. TIME SETTING BUTTONS
   • Used to adjust the time. (See page 13)
3. TIMER SET/CANCEL BUTTONS
   • Used to set the timer when the desired time is obtained and to cancel the Timer operation. (See page 13)
4. SLEEP MODE AUTO BUTTON
   • Used to set Sleep Mode Auto operation. (See page 13)
5. AIR CIRCULATION BUTTON
   • Used to circulate the room air without cooling or heating (turns the indoor fan on/off). (See page 14)
6. ROOM TEMPERATURE CHECKING BUTTON
   • Used to check the room temperature.
7. PLASMA
   • Used to start or stop the plasma-purification function. (See page 12)
8. HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (NOT ON ALL MODELS)
   • Used to set the desired horizontal airflow direction. (See page 14)
9. RESET BUTTON
   • Used before resetting time or after replacing batteries.

How to use the Operation

How to use the Operation Mode Selection button Cooling Operation

Natural wind by the CHAOS logic

• For a better feeling than other fan speeds, press the Indoor Fan Speed Selector and set to CHAOS mode.
• In this mode, the wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic.

Auto Operation

During Auto Operation:

• You cannot switch the indoor fan speed. It has already been set by the Fuzzy rule.
• If the system is not operating as desired, manually switch to another mode. The system will not automatically switch from the cooling mode to the heating mode, or from heating to cooling, it must be done by manually resetting.
• During Auto Operation, pressing the chaos swing button makes the horizontal louvers swing up and down automatically. If you want to stop auto-swing, press the chaos swing button again.

Healthy Dehumidification Operation

During Healthy Dehumidification Operation:

• If you select the dehumidification mode on the operation selection button, the A/C starts to run the dehumidification function, automatically setting the room temp. and airflow volume to the best condition for dehumidification based on the sensed current room temp.
• In this case, however, the setting temp. is not displayed in the remote control and you are not able to control the room temp. either.
• During the healthy dehumidification function, the airflow volume is automatically set according to the optimization algorithm responding to the current room temp. status and makes the room condition healthy and comfortable even in the high humidity season.

Heating Operation(Heat pump model only)

Natural wind by the CHAOS logic

• For a better feeling than other fan speeds, press the Indoor Fan Speed Selector and set to CHAOS mode.
• In this mode, the wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic.

Jet Cool Operation

NOTE:

• During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely high speed for 30 minutes setting the room temp. automatically to 18°C. It is especially used to cool the room temp. in the shortest time in a hot summer.
• In heat pump mode or neuro fuzzy mode, however, the JET COOL function is not available.
• To return to the normal cooling mode from the JET COOL mode, you just press either the operation mode selection button, airflow volume selection or temp. setting button or the JET COOL button again.

PLASMA Purification Operation(Option)

PLASMA Air Purifying Operation only

• If you press the only PLASMA button, PLASMA air purifying operates only.
• Then, the fan speed is low. You can select the fan speed in four steps, medium, high, or CHAOS.
• Each time the button ( ) is pressed, the fan speed mode is shifted.

Additional features

Sleep Mode

1. Press the Sleep Mode Auto button to set the time you want the unit to turn off automatically.
2. The Timer is programmed in one-hour increments by pressing the Sleep Mode Auto button 1 to 7 times. The sleep mode is available for 1 to 7 times. To alter the period in steps of 1 hour, press the Sleep Mode Button while aiming at air conditioner.
3. Make sure the Sleep Mode Auto LED lights up.
   • To cancel the Sleep Mode, press the Sleep Mode Auto button several times until the star ( ) disappears from the operation display.
   • Note: The Sleep Mode will be operated at low fan speed (cooling) or medium fan speed (heat pump only) for quiet sleeping.
   • IN COOLING MODE: The temperature will automatically rise by 1°C over the next 30 minutes and by 2°C in 1 hour for comfortable sleeping.

Setting the Time

1. Time can be set only when you have pressed the Reset button. If you have just replaced the batteries, the Reset button should be pressed to reset the time. Press the Start/Stop button.
2. Press the Time Setting buttons until the desired time is set.
3. Press the Timer SET button.
   • Note: Check the indicator for A.M. and P.M.

Delay Start/Pre-Set Stop

1. Make sure the time is set correctly on the remote control display.
2. Press the ON/OFF Timer buttons to turn the Timer on or off.
3. Press the Time Setting buttons until the desired time is set.
   • NOTE: Select one of the following four types of operation.
4. Press the selected on/off setting by pressing the Timer SET button while aiming the remote control at the signal receptor.

To cancel the setting of the timer.

• Press the Timer Cancel button while aiming the remote control at the signal receptor.
• (The timer lamp on the air conditioner and the display will go out.)
  • NOTE: Select one of the following four types of operation.
  • With the unit running

Vertical Airflow Direction Control

The up/down airflow (Vertical Airflow) can be adjusted by using the remote control.

• Press the Start/Stop button to start the unit.
• Open the door on the remote control.
• Press the Chaos Swing button and the louvers will swing up and down.
• Press the Chaos Swing button again to set the vertical louver in the desired airflow direction.

Note:

• If you press the CHAOS swing button, the horizontal airflow direction is changed automatically based on the CHAOS algorithm to distribute the air in the room evenly and at the same time make the human body feel most comfortable, as if enjoying a natural breeze.
• Always use the remote control to adjust the up/down airflow direction. Manually moving the vertical airflow direction louver by hand could damage the air conditioner.
• When the unit is shut off, the up/down airflow direction louver will close the air outlet vent of the system.

To adjust left/right(Horizontal Airflow) direction

• Caution: Ensure the unit is turned off before adjusting the horizontal airflow direction control. Carefully open the vertical louver to allow access to the horizontal airflow direction.
  • Adjust the left/right airflow direction by hand.

Horizontal Airflow Direction Control (Option)

• The left/right(Horizontal Airflow) can be adjusted by using the remote control.
• Press the Start/Stop button to start the unit.
• Open the door on the remote control.
• Press the Airflow Direction Start/Stop button and the louvers will swing left and right.
• Press the Horizontal Airflow Direction Control Button again to set the horizontal louver at the desired airflow direction.

Air Circulation Mode

Circulates the room air without cooling or heating.

1. Press the Start/Stop button. the unit will respond with a beep.
2. Open the door on the remote control. Press the Air Circulation button. Close the door on the remote control. Now each time that you press the Indoor Fan Speed Selector, the fan speed is shifted from low to CHAOS and back to low again.

Note: CHAOS Air economizes power consumption and prevents overcooling. The fan speed is automatically changed from high to low or vice versa, depending on the ambient temperature.

Forced Operation

• Operation procedures when the remote control can’t be used.
• The operation will be started if the power button is pressed.
• If you want to stop the operation, re-press the button.

Room Temp. < 21°C
Operating mode| Cooling| Cooling| Healthy Dehumidification| Heating
Indoor FAN Speed| High| High| High| High
Setting Temperature| 22°C| 22°C| 23°C| 24°C

Test operation

• During the TEST OPERATION, the unit operates in cooling mode at the high-speed fan, regardless of room temperature, and resets in 18 minutes.
• During test operation, if a remote controller signal is received, the unit operates as remote controller sets.
• If you want to use this operation, open the front panel upward and Press the power button to let it be pressed for about 3 seconds.
• If you want to stop the operation, re-press the button.

Auto restart

• In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions.
• So there is no need to activate this function by pressing any key or button.
• In the initial mode, the fan operates at a low speed and the compressor starts 2.5~3 minutes later.
• As the compressor starts, the fan speed also resumes its previous setting mode.

Helpful information

• Fan speed and cooling capacity.
• The cooling capacity indicated in the specification is the value when the fan speed is set to high, and the capacity will be lower at low or medium fan speed.
• High fan speed is recommended when you wish to cool the room quickly.

Care and Maintenance

Care and maintenance of the air conditioner

CAUTION: Before performing any maintenance, turn off the main power to the system.

Indoor Unit

Grille, Case, and Remote Control

• Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.
  • NOTE: Supply power must be disconnected before cleaning the indoor unit.

AIR FILTERS

• The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if necessary.

PLASMA FILTER, DEODORIZER FILTER(OPTION)

• The PLASMA filter behind the air filters should be checked and cleaned once every 3 months or more often if necessary.
• Don’t touch this PLASMA Filter within 10 seconds after opening the inlet grille, it may cause an electric shock.

Never use any of the following:

• Water hotter than 40°C
  • Could cause deformation and/or discoloration.
• Volatile substances
  • Could damage the surfaces of the air conditioner.

1. Lift the front access panel and pull the filter tab slightly forward to remove the filter.
2. Clean the filter with a vacuum or warm, soapy water.
   • If dirt is conspicuous, wash with a solution of detergent in lukewarm water.
   • If hot water (40°C or more) is used, it may be deformed.
3. After washing with water, dry well in the shade.
4. Re-install the air filter.
5. After removing the air filters, pull slightly forward to remove the PLASMA filter.
6. Dip the PLASMA filter into the water mixed with neutral detergent, for 20~30 minutes.
7. Dry the PLASMA filter in the shade for a day (Especially, the humidity must be removed perfectly on this part).
8. Note the cuts of electric discharge lines.
9. Re-install the PLASMA filter to the original position.
10. After removing the air filters, pull slightly forward to remove the DEODORIZER filter.
11. Dry in the sunlight for two hours.
12. Re-install the DEODORIZER filter to the original position.

Replacement of Purifying Filter(Option)

Recommended use period: About 2 years

1. Open the front panel and remove air filters.
2. Remove air purifying filters.
3. Insert new air purifying filters.
4. Reinsert air filters and close the front panel.

Outdoor Unit

The heat exchanger coils and panel vents of the outdoor unit should be checked regularly. If clogged with dirt or soot, the heat exchanger and panel vents may be professionally steam cleaned. NOTE: Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs.

When the air conditioner is not going to be used for a long time.

When air conditioner is not going to be used for a long time.

1. Operate the air conditioner on Air circulation mode (Refer to page 14) for 2 to 3 hours.
   • This will dry out the internal mechanisms.
2. Turn off the circuit breaker, and disconnect the plug.
   • CAUTION: Turn off the circuit breaker when the air conditioner is not going to be used for a long time. Dirt may collect and may cause a fire.
3. Remove the batteries from the remote control.

When the air conditioner is to be used again.

1. Clean the air filter and install it in the indoor unit. (Refer to page 16 for cleaning filters.)
2. Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.

Operation Tips

• Do not overcook the room.
  • This is not good for the health and wastes electricity.
• Keep blinds or curtains closed.
  • Do not let direct sunshine enter the room when the air conditioner is in operation.
• Keep the room temperature uniform.
  • Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room.
• Make sure that the doors and windows are shut tight.
  • Avoid opening doors and windows as much as possible to keep the cool air in the room.
• Clean the air filter regularly.
  • Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks.
• Ventilate the room occasionally.
  • Since windows are kept closed, it is a good idea to open them and ventilate the room now and then.

Troubleshooting

Before you call for service…

Troubleshooting Tips! Save time and money!

Check the following points before requesting repairs or service… If the fault persists, please contact your dealer or service center.

Condensation occurs when the airflow from the air conditioner cools the warm room air.| –
Air conditioner does not operate for about 3 minutes when restarted.| •  This is the protector of the mechanism.

•  Wait about three minutes and the operation will begin.

| –
Does not cool or heat effectively.| •  Is the air filter dirty? See air filter cleaning instructions.| 16
•  Has the temperature been set incorrectly?| 7, 10
•  Are the indoor unit’s air inlet or outlet vents obstructed?| –
The air conditioner operation is noisy.| •  For a noise that sounds like water flowing.

-This is the sound of freon flowing inside the air conditioner unit.

•  For a noise that sounds like compressed air releasing into the atmosphere.

-This is the sound of the dehumidifying water being processed inside the air conditioning unit.

| –
Remote control display is faint, or no display at all.| •  Are the batteries depleted?

•  Are the batteries inserted in the opposite (+) and (-) directions?

|

4

Crack sound is heard.| •  This sound is generated by the expansion/constriction of the front panel, etc. due to temperature changes.| –

NOTE

• WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT. The indoor side is not water resistant and should not be exposed to excess water.
• NEC AUSTRALIA PTY. LTD.
• A.C.N 004 803 490
• P/No.: 3828A20266A

MODEL NO:

• RSC1014 RSH1024
• RSC1212 RSH1222
• RSC1814 RSH1824
• RSC2414 RSH1825
• RSC2414PF RSH2424
• RSC2415 RSH2424PF
• RSC1215 RSH2425
• RSH1225

Thank you for purchasing the NEC room air-conditioner. All NEC products have been carefully designed and prepared at the factory under strict quality guide lines. We are confident that this product will give you daily comfort and satisfaction if it is handled properly based on this owner’s manual. Before using your air conditioner please read this manual carefully and keep it for reference.

References

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