OPERATING INSTRUCTIONS

Introduction

Window Type Air Conditioner (Inverter Cooling)

Models: RC-S70H, RC-S90H, RC-S120H, RC-S180H, RC-S240H

Thank you for purchasing Rasonic window type air conditioner. Please read the user manual carefully before installation and keep it for your reference.

Window type room air conditioners can regulate the room temperature and dry the room. It is convenient for your work, study, and life. It can be widely used in residences, shops, hotels, offices, libraries, and laboratories, and so on.

Function

Cooling in summer

In hot summer, the air conditioner can cool down the room air by transferring heat out.

Illustration shows a person sleeping comfortably in a room with an air conditioner running, indicating cooling in summer.

Dehumidifying in rainy or humid season

Without reducing the room temperature, the air conditioner can dehumidify and make the room air dry and comfortable.

Illustration shows an air conditioner unit with a 'Dry' indicator, signifying dehumidification to make the room air dry and comfortable.

Exchange fresh air (Only for models with fresh air function)

Open the ventilation lever to keep the fresh air in the room.

Illustration shows an air conditioner unit with a 'Fresh Air' indicator, indicating the function to bring fresh air into the room via a ventilation lever.

Operating Condition

COOL mode operation

Outdoor temperature should be in the range of 18°C to 43°C, otherwise it is possible for the air conditioner to break down. Room humidity should be lower than 90%. Otherwise, it is possible for the air conditioner to dew at the air conditioner surface and even drop water after running for some time. This is normal.

DRY mode operation

Outdoor temperature should be in the range of 18°C to 43°C, otherwise it is possible for the air conditioner to break down.

Power requirement

The electric components will be damaged when the voltage is too high. If the voltage is too low, the compressor will vibrate violently to damage the refrigerant system and easily cause the compressor and electric components not to work.

The ground must be connected. A special socket must be used. Furthermore, the socket and wiring must conform to the wiring regulations. The earthing method must be reliable. In a fixed circuit, there must be an electricity leakage protection switch of enough power capacity and an air switch with enough space.

Diagrams illustrate potential electrical hazards: one shows a hand near an electrical outlet with a warning symbol, indicating damage from high/low voltage. Another shows incorrect grounding with crossed wires, emphasizing the need for proper grounding and a special socket. A third diagram shows a circuit with a leakage protection switch and air switch.

Installation

Installation precaution

Window type air conditioner is valuable, and improper installation can cause significant damage. Please engage a professional technician to install the unit and do not install it yourself. Otherwise, Rasonic is not responsible for any damage.

Diagram shows a truck and a house, implying professional installation is needed for relocation.

Location

• The condensation water must be drained away conveniently.
• Install the air conditioner unit far away from TV sets or radios, etc., to avoid disturbing video or voice.
• In salt and coastal areas, or places near thermal springs and polluted by sulphurous gas, or other special areas, please contact the seller before use.
• Avoid places where flammable gas might leak out.
• It is not allowed to be installed on unstable or motive base structures (such as trucks) or in corrosive environments (such as chemical factories).
• Avoid other heat sources or direct sunlight.
• Avoid places easily accessible to children.
• Do not use the unit in the immediate surroundings of a laundry, a bath, a shower, or a swimming pool.
• For window type air conditioners with remote control, install in a location where there is strong electromagnetic disturbance; contact the seller in advance to avoid malfunctions.

How to install

• Choose a location where there are no obstacles surrounding the unit, and the plug is accessible.
• Prepare the installation hole slightly bigger than the unit size.
• Choose the installation space according to the following diagram.

Diagrams show top, front, and side views of the air conditioner installation, indicating required clearances from walls, ceilings, and other objects (e.g., 'Over 500 mm', 'Over 150 mm', 'Less than 220 mm').

Installation procedure

1. Remove the sticker from the front panel.
2. Put the unit into the installation hole.
   • When installing the unit, it should slant down towards the back to ensure condensation water can be drained away conveniently. (Slant about 3°±1°)
   • Diagram shows the unit slanted slightly downwards towards the back (approx. 3°±1°) for condensation drainage.
   • The installation place should be strong enough to avoid the enlargement of noise or vibration.
3. Fill up seams in the cabinet with sponge or foam.

Installation assistance

• Use iron support: The installation hole should be strong enough to support the air conditioner. If it cannot, iron support must be used outdoors. Iron support should be fixed on the building.
• Use sunshade board: The air conditioner should be protected from anything being dropped into it and from direct sunshine. If there is no cover, contact the seller for installing a sunshade board. When installing the sunshade board, do not let it block the air inlet at the side grille.

Diagrams illustrate installation assistance: one shows an iron support bracket fixed to a wall to hold the air conditioner. Another shows a sunshade board installed above the unit, with a note to avoid blocking the air inlet.

Drain water

For one style

To achieve maximum cooling efficiency, the air conditioner is designed to splash condensate on the condenser coil. If the splashing sound is bothersome, you can provide an outside drain using the following procedure, which may cause a small loss of performance.

1. There is a drainage outlet at the back of the unit.
2. Remove the cover from the drainage outlet, and then connect the drainage joint with a screw.
3. Connect the drain hose to the outlet.

Note: Drain hose or tubing can be purchased locally to satisfy your particular needs.

Diagram shows the rear of the air conditioner with a drainage outlet, cover, screw, and drainage joint, illustrating how to connect a drain hose.

For another style

To achieve maximum cooling efficiency, the air conditioner is designed to splash condensation water on the condenser coil. Please install the drainage box when installing the air conditioner. For cooling-only units, if the splashing sound is bothersome, you can provide an outside drain using the following procedure, which may cause a small loss of performance.

1. Slide out the chassis from the cabinet.
2. Remove the rubber plug from the body base plate.
3. Install the drain pan to the corner of the cabinet with 2 screws.
4. Connect the drain hose to the outlet on the drain pan bottom.
5. Slide the chassis back into its original place in the cabinet.

Note: Drain pan and drain hose must be installed before using reverse cycle models. Drain hose or tubing can be purchased locally to satisfy your particular needs.

Diagrams show internal views of the air conditioner chassis, illustrating the removal of a rubber plug from the base plate and the installation of a drain pan with screws, followed by connecting a drain hose.

Notes for installation

Remove

Before moving the air conditioner to another location, contact the seller first. The move must be done under the direction of a professional technician, and any charges must be paid.

Diagram shows a truck, implying relocation requires professional service.

Noise

• Install in a location that is firm enough to avoid increased noise and vibration.
• Do not place anything in front of the unit's outlet to avoid increasing noise.
• Ensure that hot air or noise will not inconvenience neighbors.
• Please contact the seller as soon as any strange noise occurs during operation.
• Please use the safety support.

Diagram shows a house with sound waves, indicating neighbor consideration.

Electric wiring

• Must connect with ground reliably.
• An exclusive circuit must be used. Removable sockets cannot be used because poor contact can cause overheating or fire.
• Do not pull the power cord strongly.
• In a fixed circuit, there must be an electricity leakage protection switch with leakage current less than 30mA.
• An air switch (thermal-magnetic breaker) should be installed in the circuit with a capacity of 10A (for RC-S70H, RC-S90H, RC-S120H) and 16A (for RC-S180H, RC-S240H).
• The connection method between air conditioners, the power cord, and interconnecting method of each individual element must accord with the wiring diagram on the unit.
• The air conditioner should be installed in accordance with national wiring regulations.
• An all-pole disconnection switch with a contact separation of at least 3mm in all poles should be connected in fixed wiring. Fixed wiring should be at least 1.5mm² (for RC-S70H, RC-S90H, RC-S120H) and 2.5mm² (for RC-S180H, RC-S240H).
• If the supply cord is damaged, it must be replaced by the manufacturer, your dealer, or a qualified person to avoid a hazard.
• All electrical work must be done according to local wiring regulations.

Diagrams show electrical hazards: a hand near an outlet with sparks, a plug being pulled forcefully, and a circuit with a breaker.

Part identification

Panel outlook picture, just for reference; please take the real unit as standard.

Diagram shows the front and side view of the air conditioner with labels: Cabinet, Air inlet louver, Front grille, Front intake grille, Air filter (behind the front intake grille), Remote control panel, Power cord.

Air direction adjustment

Vertical airflow direction vane

(Airflow direction adjustment up and down)

The vertical airflow direction vane is controlled by positioning the vane to discharge the air upwards, downwards, or straight out.

Diagram shows the vertical airflow direction vane inside the air conditioner, illustrating its adjustable position for directing air upwards, downwards, or straight.

Remote control operation procedure

Note: This is a general-use remote controller that can be used for air conditioners with multiple functions. For functions the specific model does not have, pressing the corresponding button on the remote controller will result in the unit maintaining its original running status. (This model does not have "Wifi" function).

Diagram of the remote control with numbered buttons: 1. On/Off, 2. Mode, 3. +/- , 4. Swing, 5. Fan, 6. Sleep, 7. Timer, 8. Health (not applicable), 9. Light.

1 On/Off button

Press this button to turn the unit on. Press this button again to turn the unit off.

2 Mode button

Press this button to select your required operation mode. The corresponding indicator will be on.

Modes: Auto, Cool, Dry, Fan Only, Heat (not applicable for cooling only model).

• Auto: Under this mode, the unit operates automatically according to factory settings. The set temperature cannot be adjusted.
• Cool: Under this mode, the air conditioner operates in cooling mode. The cooling indicator will be on. Press the "Fan Speed" button to adjust the fan speed.

Dry mode

Under this mode, the unit runs in low fan speed for dehumidification, and the corresponding indicator is on. Under dry mode, the fan speed cannot be adjusted.

Fan Only mode

Under this mode, the air conditioner will not cool or heat, only blow wind. The fan indicator will be on. Press the "Fan Speed" button to adjust the fan speed.

Heat mode

Under this mode, the air conditioner operates in heating mode. Press the "Fan Speed" button to adjust the fan speed. (Cooling-only units will not receive heating mode signals. If setting heat mode with the remote controller, pressing the ON/OFF button will not start the unit).

3 +/- button

• Pressing "+" or "-" button once will increase or decrease the set temperature by 1°F(°C).
• Hold "+" or "-" button for 2 seconds; the set temperature on the remote controller will change quickly. Release the button after your required set temperature is reached.
• Under timer setting status, after each press of "+" or "-" button, the time will increase or decrease by 0.5h. Hold "+" or "-" button for 2 seconds; the time displayed on the dual-8 nixie tube will change quickly. Release the button when the time reaches your set time.

4 Swing button

Press this button to turn the automatic air swing function "ON" and "OFF".

5 Fan button

This button is used for setting Fan Speed in the sequence that goes from AUTO, Speed 1, Speed 2, Speed 3, then back to Auto.

Diagram shows fan speed progression: Auto -> Speed 1 -> Speed 2 -> Speed 3 -> Auto.

NOTE: There are 3 speeds for the Fan Speed of this model.

6 Sleep button

Press this button to enter the Sleep operation mode. Press it again to cancel this function. This function is available in COOL and HEAT (only for models with heating function) modes to maintain the most comfortable temperature.

7 Timer button

Under ON status, press this button to set timer OFF. Under OFF status, press this button to set timer ON. Press this button once, and the characters HOUR ON (OFF) will flash to be displayed. Meanwhile, press the "+" button or "-" button to adjust the timer setting (time will change quickly if holding "+" or "-" button). The time setting range is 0.5~24 hours. Press this button again to confirm the timer setting, and the characters HOUR ON (OFF) will stop flashing. If the characters are flashing but you haven't pressed the timer button, the timer setting status will quit after 5 seconds. If the timer is confirmed, press this button again to cancel the timer.

8 Health button

This function is not applicable for this model.

9 Light button

Press the "Light" button to turn on or off the lights on the display panel of the window air conditioner.

Function introduction for combination buttons

Temperature display switchover function

Under OFF status, press the "-" and "Mode" buttons simultaneously to switch the temperature display between °C and °F.

Light function

Under switch-on or switch-off state, you may hold the "+" and "FAN" buttons simultaneously to set the lamp on or off and send the code. After being energized, the lamp is defaulted on.

Replacement of batteries in remote controller

1. Press the back side of the remote controller marked with "OPEN" as shown in the figure, and then push out the cover of the battery box along the arrow direction.
2. Replace with two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar are correct.
3. Reinstall the cover of the battery box.

Diagram shows the back of the remote controller with an arrow indicating how to open the battery cover, and illustrations of batteries being removed and reinstalled.

NOTICE

• The distance between the signal sender and receiving window should be no more than 8m, and there should be no obstacles between them.
• As the signal can be interfered with by electronic fluorescent lamps, conversion fluorescent lamps, or wireless phones in the room, please get closer to the air conditioner when using the remote controller.
• Replace with new batteries of the same model when replacement is required.
• When you do not use the remote controller for a long time, please take out the batteries.

Remote control panel

Note: If the wireless remote controller is lost, you can use the remote control panel and operate manually.

Diagram of the control panel with numbered buttons: 1. ON/OFF, 2. SWING, 3. FAN SPEED, 4. TIME/TEMP, 5. SIGNAL RECEIVER, 6. MODE, 7. FILTER.

1 ON/OFF BUTTON

Operation starts when pressing this button, and stops when pressing this button again.

2 SWING BUTTON

Activate the automatic air swing function.

3 FAN SPEED BUTTON

Select the fan speed LOW, MID, HIGH, and AUTO in sequence.

4 TIME/TEMP BUTTON

Press the keypad to increase the set (operating) temperature of the unit. Press the keypad to decrease the set (operating) temperature of the unit. The temperature setting range is from 16~30°C. Press the keypad also to increase the selected time in 0.5-hour increments, and press the keypad to decrease the selected time in 0.5-hour decrements. The time setting range is from 0~10 hours. Press the keypad also to increase the selected time in 1-hour increments, and press the keypad to decrease the selected time in 1-hour decrements. The time setting range is from 0~24 hours.

5 SIGNAL RECEIVER

Receives signals from the remote controller.

6 MODE BUTTON

Select the operation mode: COOL, DRY, FAN, HEAT (for reverse cycle model) or COOL, DRY, FAN (for cooling-only model).

7 FILTER BUTTON

This feature is a reminder to clean the Air Filter (See Care and Cleaning) for more efficient operation and cooling. The LED (light) will illuminate after 250 hours of operation. To reset after cleaning the filter, press the "Check Filter" button, and the light will go off. Before the LED illuminates, pressing the "Check filter" button for 3 seconds will cancel the accumulated operation time.

Operation Tips

Operation for comfort and economy

• Do not overcool the room temperature. This is not good for health and wastes electricity.

  Illustration shows a thermometer and sun, warning against overcooling and direct sunlight.

• Keep blinds or curtains closed. Do not let sunshine enter the room directly when the air conditioner is in operation.

  Illustration shows curtains being closed to block sunlight.

• Keep the room temperature uniform. Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room. Air cannot be discharged towards the air inlet.

  Illustration shows an air conditioner unit with arrows indicating airflow direction adjustment for uniform temperature.

• Make sure that doors and windows are tightly closed. Avoid opening doors and windows as much as possible to keep the air conditioning in the room.

  Illustration shows closed doors and windows, emphasizing sealing the room.

• Clean the air filter regularly. Blockages in the air filter reduce dehumidifying effects. Clean the air filter at least once every two weeks.

  Illustration shows a hand cleaning an air filter, highlighting regular cleaning for efficiency.

• Ventilate the room occasionally. Since windows are kept closed, it is a good idea to open them and ventilate the room now and then. When starting the unit, curtains or windows should be closed to prevent cool air leakage.

  Illustration shows opening windows for ventilation, with a note to close them when starting the unit.

CAUTION

Operations for safety and health

• The plug must be accessible after the appliance is positioned.
• Do not use this appliance in the laundry.
• If the power cord is damaged, it must be replaced by the manufacturer or its service agent to avoid hazard.

• Do not pull out the power cord. Damage to the cord may result in serious electric shocks.

  Diagram shows a hand pulling a power cord, with sparks and a warning about electric shock.

• Do not use the air conditioner for purposes other than cooling the room. Do not use the air conditioner for other purposes such as drying clothes, preserving foods, or cultivating vegetables.

  Diagram shows an air conditioner unit with a 'no' symbol over it, indicating it should not be used for drying clothes or preserving food.

• Do not block the air intake and outlet vents. This causes lowered performance and irregular operation. Do not insert sticks or other objects into these vents, as it is dangerous to touch the electric components and the fan.

  Diagram shows an air conditioner unit with blocked air intake/outlet vents, with a warning about reduced performance and danger from inserting objects.

• Select the most appropriate temperature. Pay attention to adjust the temperature to suit the conditions. Rooms occupied by infants, the elderly, or the sick should be kept at an appropriate temperature.

  Illustration shows a thermometer and people (infant, elderly), advising appropriate temperature settings.

• Do not use heating apparatuses in the vicinity. The air conditioner's plastic parts will melt if exposed to excessive heat.

  Illustration shows an air conditioner unit near a fireplace, warning about melting plastic parts from excessive heat.

• Avoid exposing the body directly to a continuous unidirectional airflow for long periods. This is not recommended for health reasons.

  Illustration shows a person being blown by strong air, warning against continuous unidirectional airflow.

Always wait at least 3 minutes before switching the air conditioner on again after you have switched it off during cooling.

Diagram shows an air conditioner unit with a timer icon and a clock, indicating a 3-minute wait before restarting.

Care and maintenance

Always turn off the air conditioner and main power supply before cleaning to ensure safety.

Cleaning unit

1. Cut power off before cleaning.

   Diagram shows unplugging the air conditioner after it stops.

2. Use a soft cloth when cleaning the cabinet. If the cabinet is very dirty, dip the cloth into warm water below 40°C, dry the cloth, and then rub off the dirt.

   Illustration shows wiping the cabinet with a damp cloth.

3. Do not use gas, benzene, solvent, wash, or chemical solvent, etc., for cleaning.

   Illustration shows cleaning agents (gas, benzene, solvent) with a 'no' symbol, warning against their use.

4. Do not splash water directly into the unit, as there are micro-computers and circuit plates inside that must not be drenched with water.

   Illustration shows splashing water near the unit's electronic components with a warning about accidents.

Air filter

The air filter behind the intake grille should be washed at least once every two weeks or as often as it needs cleaning.

How to clean the air filter:

1. To remove the air intake grille, grasp the tab on the filter and pull to take it out.
2. Vacuum the filter on the dusty side to remove light dust.

   Illustration shows using a vacuum cleaner on the dusty side of the filter.

3. Wash the filter, cleaner side up, under gently flowing water to wash out accumulated dust and lint.

   Illustration shows washing the filter under gently flowing water.

4. If the filter is very dirty, use a mild household detergent in the wash water.

   Illustration shows using mild detergent for very dirty filters.

Let the filter dry thoroughly before reinstalling it. If necessary, please ask a professional for cleaning.

• Check if the air inlet and outlet of the unit are blocked or not. Air lock could result in bad efficiency.

  Diagram shows an air conditioner unit with blocked inlet/outlet, warning about bad efficiency.

• Check earth wire: Is it broken or loose?

  Diagram shows checking the earth wire for breaks or looseness.

Troubleshooting guide

Please check the following items before asking for repair; it saves your time and money.

Special Avowal

1. The information above has been checked; Rasonic reserves the right to any print errors or misunderstandings on the content.
2. Any technology improvement will be added into new instructions without prior notices. The product appearance and color refer to the practical air conditioner.
3. An e-copy of the user manual can be sent by e-mail upon request; please call Shun Hing Electric Works & Engineering Co. Ltd. hotline at 2861 2767.

After sale service

The guarantee period is from the date of purchase to one year. If the product is damaged under proper use, a free repair service is available. Please present the official invoice and the guarantee certificate with the sales point's chop / redemption center's chop for free maintenance. For inquiries, please contact Shun Hing Electric Service Centre Limited hotline at 2406 5666.

Turn off the power and contact Shun Hing Electric Service Centre Ltd. as soon as any of the following events occur:

• The circuit breaker frequently trips or the fuse blows regularly.
• If water or foreign objects have accidentally entered the air conditioner.
• If there is abnormal sound during operation.

Contact Information

Shun Hing Electric Works & Engineering Co., Ltd.

Office: 9/F, Peninsula Centre, 67 Mody Road, Tsimshatsui East, Kowloon, Hong Kong

Tel: (852) 2861 2767 | Fax: (852) 2865 6706

Website: www.rasonic.com | Email: shew@shunhinggroup.com

Shun Hing Electric Service Centre Ltd.

Office: 11th Floor, Shun Hing Centre, 2 Shing Yiu Street, Kwai Chung, New Territories, Hong Kong

Tel: (852) 2406 5666 | Fax: (852) 2408 0316

Website: www.shesc.com

Consumables/Accessories Sales Hotline

Tel: (852) 2406 5666

Customer Service Centres

Hong Kong: 1st Floor, Shun Hing Centre, 2 Shing Yiu Street, Kwai Chung, New Territories, Hong Kong

Tel: (852) 2406 5439 | Fax: (852) 2408 1389

Macau: Avenida de Venceslau de Morais, No. 193-199, 5 Andar-I, Edif. Industrial Nam Leng, Macau

Tel: (853) 2836 2928 | Fax: (853) 2833 6405

For the latest information of customer service centres, please visit www.shesc.com or call our hotline.