inventor U6RSL2-18 Air Conditioning Multi Split System User Manual

inventor U6RSL2-18 Air Conditioning Multi Split System

WARNING: 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. For more details ,please refer to the Information on servicing on INSTALLATION MAN-UAL .(This is only required for the unit adopts R32/R290 Refrigerant)

Safety Precautions

Thank you for purchasing this air conditioner. This manual will provide you with information on how to operate, maintain, and troubleshoot your air conditioner. Following the instructions will ensure the proper function and extended lifespan of your unit.

Please pay attention to the following signs:

WARNING Failure to observe a warning may result in death. The appliance must be installed in accordance with national regulations.
CAUTION Failure to observe a caution may result in injury or equipment damage.

WARNING

• Ask an authorized dealer to install this air conditioner. Inappropriate installation may cause water leakage, electric shock, or fire.
• The warranty will be voided if the unit is not installed by professionals.
• If abnormal situation arises (like burning smell), turn off the power supply and call your dealer for instructions to avoid elec-tric shock, fire or injury.
• DO NOT let the indoor unit or the remote control get wet. It may cause electric shock or fire.
• DO NOT insert fingers, rods or other objects into the air inlet or outlet. This may cause injury, since the fan may be rotating at high speeds.
• DO NOT use a flammable spray such as hair spray, lacquer or paint near the unit. This may cause fire or combustion.
• Do not use means to accelerate the de-frosting process or to clean, other than those recommended by the manufacturer.
• The appliance shall be stored so as to pre-vent mechanical damage from occurring.
• Be aware that the refrigerants may not contain an odour.
• Compliance with national gas regulations shall be observed.
• Keep ventilation openings clear of obstruction.
• DO NOT pierce or burn.
• A warning that the appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.
• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification.
• 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.

CAUTION

• DO NOT touch the air outlet while the swing flap is in motion. Fingers might get caught or the unit may break down.
• DO NOT inspect the unit by yourself. Ask an authorized dealer to perform the in-spection.
• To prevent product deterioration, do not use the air conditioner for preservation purposes (storage of food, plants, animals, works of art, etc.).
• DO NOT touch the evaporator coils inside the indoor unit. The evaporator coils are sharp and may cause injury.
• DO NOT operate the air conditioner with wet hands. It may cause electric shock.
• DO NOT place items that might be affected by moisture damage under the indoor unit. Condensation can occur at a relative humidity of 80%.
• DO NOT expose heat-producing appliances to cold air or place them under the indoor unit. This may cause incomplete combustion or deformation of the unit due to the heat.
• After long periods of usage, check the indoor unit to see if anything is damaged. If the indoor unit is damaged, it may fall and cause injury.
• If the air conditioner is used together with other heating devices, thoroughly ventilate the room to avoid oxygen deficiency.
• DO NOT climb onto or place objects on top of the outdoor unit.
• DO NOT operate the air conditioner when using fumigant insecticides. The chemicals may become layered with the unit and endanger those who are hypersensitive to chemicals.
• DO NOT let children play with the air conditioner.
• DO NOT operate the air conditioner in a wet room (e.g. bathroom or laundry room). This can cause electrical shock and cause the product to deteriorate.
• No children under the age of 8 should be permitted to operate this electric device. Be certain, that children, handicapped people, or people with the lack of knowledge and experience, must be supervised, depending the situation, by persons responsible for their well-being and do not undertake procedures such as the cleaning or the maintenance of this device.
• It is important that adequate supervision is provided and no minors are left unattended with this device.

Unit Parts And Major Functions

Wall-mounted type

Indoor unit

1. Panel frame
2. Rear air intake grille
3. Front panel
4. Air purifying filter & Air filter(behind)
5. Horizontal louver
6. LCD display window
7. Vertical louver
8. Manual control button(behind)
9. Remote controller holder
Outdoor unit
10. Drain hose, refrigerant connecting pipe
11. Connective cable
12. Stop valve
13. Fan hood

Duct type

Fig. 2.2

Indoor unit

1. Drain pump
(drain water from indoor unit)
2. Drain hose
3. Air outlet
4. Air inlet
5. Air filter
6. Electric control cabinet
7. Wire controller
Outdoor unit
8. Drain hose, refrigerant connecting pipe
9. Connective cable
10. Stop valve
11. Fan hood

Console type

Indoor unit

1. Airflow louver (at air outlet)
2. Air inlet (containing air filter)
3. Remote controller
4. Installation part
5. Display panel
Outdoor unit
6. Drain hose, refrigerant connecting pipe
7. Connective cable
8. Stop valve
9. Fan hood

Compact four-way cassette type

Indoor unit

1. Drain pump(drain water from indoor unit) (optional)
2. Drain hose (optional)
3. Air outlet
4. Air inlet
5. Air-in grill
6. Display panel
7. Remote controller
Outdoor unit
8. refrigerant connecting pipe
9. Connective cable
10. Stop valve
11. Fan hood

NOTE: For multi-split type air conditioners, one outdoor unit can be matched to different types of indoor units. All of the pictures in this manual are for demonstration purposes only. Your air conditioner may be slightly different, if similar in shape. The following pages introduce several kinds of indoor units that can be matched with the outdoor units.

Operating Conditions

Use the system under the following temperatures for safe and effective operation. If the air conditioner is used under different conditions, it may malfunction or become less efficient.

-15-24°C (5-75°F)

|

0-50°C (32-122°F)

-15-50°C (5-122°F)

(For models with low-temp cooling systems)

0-60°C (32-140°F)

(For special tropical models)

| -7-24°C (19-75°F)| 0-60°C (32-140°F)

Features

Protection of the air conditioner

Compressor protection
The compressor cannot restart for 3 minutes after it stops.

Anti-cold air

• The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the following three situations and the set temperature has not been reached.
  A) When heating has just started.
  B) During defrosting.
  C) Low temperature heating.

• The indoor or outdoor fan stop running when defrosting (Cooling and heating models only).

Defrosting

• Frost may be generated on the outdoor unit during a heat cycle when outdoor temperature is low and humidity is high resulting in lower heating efficiency in the air conditioner.
• Under these conditions, the air conditioner will stop heating operations and start defrosting automatically.
• The time to defrost may vary from 4 to 10 minutes, depending the outdoor temperature and the amount of frost buildup on the outdoor unit.

Auto-Restart
In case of power failure, the system will immediately stop. When power returns, the Operation light on the indoor unit will flash. To restart the unit, press the ON/OFF button on the remote control. If the system has an auto restart function, the unit will restart using the same settings.

White mist emerging from the indoor unit

•  A white mist may be generated due to a large temperature difference between air inlet and air outlet on COOL mode in places with high relative humidity.
• A white mist may be generated due to moisture created in the defrosting process when the air conditioner restarts in HEAT mode operation after defrosting.

Noise coming from the air conditioner

• You may hear a low hissing sound when the compressor is running or has just stopped running. This sound is the sound of the refrigerant flowing or coming to a stop.
• You may also hear a low “squeaking” sound when the compressor is running or has just stopped running. This is caused by tempera heat expansion and cold contraction of the plastic parts in the unit when the temperature is changing.
• A noise may be heard due to the louver restoring itself to its original position when power is first turned on.

Dust blowing out from the indoor unit.
This is happens when the air conditioner has not been used for a long time or during its first use.

Smell emitting from the indoor unit.
This is caused by the indoor unit giving off smells permeated from building materials, furniture,or smoke.

The air conditioner turns to FAN ONLY mode from COOL or HEAT mode.
When the indoor temperature reaches the set temperature setting, the compressor will stop automatically, and the air conditioner turns to FAN only mode. The compressor will start again when the indoor temperature rises on COOL mode or falls on HEAT mode to the set point.

Droplets of water may form on the surface of the indoor unit when cooling occurs in relatively high humidity (defined as higher than 80%). Adjust the horizontal louver to the maximum air outlet position and select HIGH fan speed.

Heating mode
The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating. When the outdoor tempera-ture falls, heat drawn in by the air conditioner decreases accordingly. At the same time, heat loading of the air conditioner increases due to larger difference between indoor and outdoor temperature. If a comfortable temperature cannot be achieved with the air conditioner alone, it is recommended that you use a sup- plementary heating device.

Lightning or a car wireless telephone operat-ing nearby may cause the unit to malfunction. Disconnect the unit from its power source and then re-connect the unit with the power source again. Push the ON/OFF button on the remote controller to restart operations.

Energy Saving Tips

• DO NOT set the unit to excessive temperature levels.
• While cooling, close the curtains to avoid direct sunlight.
• Doors and windows should be kept closed to keep cool or warm air in the room.
• DO NOT place objects near the air inlet and outlet of the unit. This will reduce the efficiency of the unit.
• Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.
• If you don’t plan to use the unit for a long time, remove the batteries from the remote control.
• Clean the air filter every two weeks. A dirty filter can reduce cooling or heating efficiency.
• Adjust louvers properly and avoid direct airflow.

Manual Operations And Maintenance

Energy Saving Tips
While two or more indoor units are simultaneously operating, make sure the modes do not conflict with each other. The heat mode claims precedence over all other modes. If the unit intially started to operate in HEAT mode, the other units can operate in HEAT mode only. For example: If the unit intially started operates under COOL (or FAN) mode, the other units can operate under any mode except HEAT. If one of the unit selects HEAT mode, the other operating units will stop operation and diplay (for units with display window only) or the auto and operation indication light will flash rapidly, the defrost indication light will turn off, and the timer indication light will remain on (for units without a display window). Alternatively, the defrost and alarm indication light (if applicable) will light up, or the operation indication light will flash rapidly, and the timer indication light will turn off (for the floor and standing type).

Maintenance
If you plan to leave the unit idle for a long time, perform the following tasks:

1. Clean the indoor unit and air filter.
2. Select FAN ONLY mode and let the indoor fan run for a time to dry the inside of the unit.
3. Disconnect the power supply and remove the battery from the remote control.
4. Check components of the outdoor unit periodically. Contact a local dealer or a customer service centre if the unit requires servicing.

NOTE: Before you clean the air conditioner, be sure to switch off the unit and disconnect the power supply plug.

Optimal operation
To achieve optimal performance, please note the following:

• Adjust the direction of the air flow so that it is not blowing directly on people.
• Adjust the temperature to achieve the highest possible level of comfort. Do not adjust the unit to excessive temperature levels.
• Close doors and windows in COOL mode or HEAT mode.
• Use the TIMER ON button on the remote controller to select a time you want to start your air conditioner.
• Do not place any object near the air inlet or air outlet, as the efficiency of the air conditioner may be reduced and the air condition-er may stop running.
• Clean the air filter periodically, otherwise cooling or heating performance may be reduced.
• Do not operate unit with horizontal louvre in closed position.

Suggestion:
For units that feature an electric heater, when the outside ambient temperature is below 0°C(32°F), it is strongly recommend-ed that you to keep the machine plugged in so as to guarantee smooth operation.

When the air conditioner is to be used again:

• Use a dry cloth to wipe off the dust accu-mulated on the rear air intake grille in order to avoid the dust being dispersed from the indoor unit.
• Check that the wiring is not broken off or disconnected.
• Check that the air filter is installed.
• Check if the air outlet or inlet is blocked after the air conditioner has not been used for a long time.

Troubleshooting

CAUTIONS If one of the following conditions occurs, switch off the power supply immediately and contact your dealer for further assistance.

• The operation light continues to flash rapidly after the unit has been restarted.
• The remote control buttons do not work.
• The unit continually trips fuses or circuit breakers.
• A foreign object or water enters the air conditioner.
• Other abnormal situations.

Common Problems
The following symptoms are not a malfunction and in most situations will not require repairs.

3-minute protection feature that prevents the unit from over- loading. The unit cannot be restarted within three minutes of being turned off.
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/ Defrost) indicators are lit up, the outdoor temperature is too cold and the unit’s anti-cold wind is activated in order to defrost the unit.
In Cooling-only Models: If the “Fan Only” indicator is lit up, the outdoor tem- perature is too cold and the unit’s anti-freeze protection is activated in order to defrost the unit.
The unit changes from COOL mode to FAN mode| The unit changes its setting to prevent frost from forming on the unit. Once the temperature increases, the unit will start operating again.
The set temperature has been reached, at which point the unit turns off the compressor. The unit will resume operating when the temperature fluctuates again.
The indoor unit emits white mist| In humid regions, a large temperature difference between the room’s air and the conditioned air can cause white mist.
Both the indoor and outdoor units emit white mist| When the unit restarts in HEAT mode after defrosting, white mist may be emit- ted due to moisture generated from the defrosting process.
Problem| Possible Causes
---|---
The indoor unit makes noises| A squeaking sound is heard when the system is OFF or in COOL mode. The noise is also heard when the drain pump (optional) is in operation.
A squeaking sound may occur after running the unit in HEAT mode due to ex- pansion and contraction of the unit’s plastic parts.
Both the in- door unit and outdoor unit make noises| A low hissing sound may occur during operation. This is normal and is caused by refrigerant gas flowing through both the indoor and outdoor units.
A low hissing sound may be heard when the system starts, has just stopped running or is defrosting. This noise is normal and is caused by the refrigerant gas stopping or changing direction.
The outdoor unit makes noises| The unit will make different sounds based on its current operating mode.
Dust is emitted from either the indoor or out- door unit| The unit may accumulate dust during extended periods of non-use, which will be emitted when the unit is turned on. This can be mitigated by covering the unit during long periods of inactivity.
The unit emits a bad odor| The unit may absorb odors from the environment (such as furniture, cooking, cigarettes, etc.) which will be emitted during operations.
The unit’s filters have become moldy and should be cleaned.
The fan of the outdoor unit does not operate| During operation, the fan speed is controlled to optimize product operation.

Troubleshooting Tips

When troubles occur, please check the following points before contacting a repair company.

The unit is not working

| Power failure| Wait for the power to be restored
The power switch is off| Turn on the power
The fuse is burned out| Replace the fuse
Remote control batteries are dead| Replace the remote control batteries
The unit’s 3-minute protection has been activated| Wait three minutes after restarting the unit

Poor cooling performance

| Temperature setting may be higher than the ambient room temperature|

Lower the temperature setting

The heat exchanger on the in- door or outdoor unit is dirty| Clean the affected heat exchanger
The air filter is dirty| Remove the filter and clean it according to instructions
The air inlet or outlet of either unit is blocked| Turn the unit off, remove the obstruction and turn it back on
Doors and windows are open| Make sure that all doors and windows are closed while operating the unit
Excessive heat is generated by sunlight| Close windows and curtains during peri- ods of high heat or bright sunshine
Low refrigerant due to leak or long-term use| Check for leaks, re-seal if necessary and top off refrigerant

The unit starts and stops fre- quently

| There’s too much or too little refrigerant in the system| Check for leaks and recharge the system with refrigerant
There is air, incompressible gas or foreign material in the refrig- eration system.| Evacuate and recharge the system with refrigerant
System circuit is blocked| Determine which circuit is blocked and replace the malfunctioning piece of equip- ment
The compressor is broken| Replace the compressor
The voltage is too high or too low| Install a manostat to regulate the voltage
Poor heating performance| The outdoor temperature is lower than 7°C (44.5°F)| Check for leaks and recharge the system with refrigerant
Cold air is entering through doors and windows| Make sure that all doors and windows are closed during use
Low refrigerant due to leak or long-term use| Check for leaks, re-seal if necessary and top off refrigerant

European Disposal Guidelines

Users in European Countries may be required to properly dispose of this unit. This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appli-ance, the law requires special collection and treatment. DO NOT dispose of this product as household waste or unsorted municipal waste.

When disposing of this appliance, you have the following options:

• Dispose of the appliance at designated municipal electronic waste collection facility.
• When buying a new appliance, the retailer will take back the old appliance free of charge.
• The manufacturer will also take back the old appliance free of charge.
• Sell the appliance to certified scrap metal dealers.

NOTE: Disposing of this appliance in the forest or other natural surroundings endan-gers your health and is bad for the environment. Hazardous substances may leak into the ground water and enter the food chain.

All the pictures in the manual are for explanatory purposes only. The actual shape of the unit you purchased may be slightly different, but the operations and functions are the same. The company may not be held responsible for any misprinted information. The design and the specifications of the product for reasons, such as product improvement, are subject to change without any prior notice.
Please consult with the manufacturer at +30 211 300 3300 or with the Sales agency for further details. Any future updates to the manual will be uploaded to the service website, and it is advised to always check for the latest version.

Scan here to download the latest version of this manual. www.inventorairconditioner.com/media- library

https://www.inventorairconditioner.com/warranty-inventor

References

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