1. Introduction
Thank you for choosing the Naicon Diloc Over 9000 BTU Inverter Monosplit Air Conditioner. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your new air conditioning system. Please read this manual thoroughly before using the appliance and keep it for future reference.
2. Safety Information
Important Safety Instructions:
- Installation must be performed by qualified personnel in accordance with local and national regulations.
- Do not attempt to repair or modify the unit yourself. Contact qualified service personnel.
- Ensure the power supply matches the unit's specifications.
- Do not block air inlets or outlets of the indoor or outdoor unit.
- Keep children and pets away from the unit during operation.
- If the power cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.
- This appliance uses R-32 refrigerant, which is mildly flammable. Handle with care and ensure proper ventilation during installation and servicing.
3. Product Overview
The Naicon Diloc Over 9000 BTU Inverter Monosplit Air Conditioner is designed for efficient cooling and heating, featuring advanced inverter technology and R-32 refrigerant for improved energy efficiency. It includes integrated Wi-Fi for smart control.
Key Features:
- 9000 BTU Cooling Capacity: Suitable for cooling and heating medium-sized rooms.
- Inverter Technology: Provides precise temperature control and energy savings.
- R-32 Refrigerant: Environmentally friendly and efficient.
- Integrated Wi-Fi: Allows remote control via a smartphone application.
- AUTO SWING: Automatic oscillation of the louvers for even air distribution.
- BLUE FIN: Anti-corrosion treatment for both indoor and outdoor heat exchangers, enhancing durability.
- Dehumidifier Function: Reduces humidity levels for increased comfort.
- ECO Function: Minimizes electrical consumption for energy efficiency.
- TIMER Function: Allows scheduled power-on and power-off.
- Low Noise Level: Operates quietly at 22 Decibels.
Components:

Figure 3.1: Indoor Unit. This image shows the sleek white indoor unit of the Naicon Diloc Over air conditioner, designed to be mounted inside the room. It features a digital display on the front panel.

Figure 3.2: Outdoor Unit. This image displays the compact outdoor unit of the Naicon Diloc Over air conditioner, featuring a large fan grille and the 'Diloc' brand logo. This unit houses the compressor and condenser.

Figure 3.3: Indoor Unit Display. A close-up view of the indoor unit's front panel, showing the digital temperature display (e.g., "26°") and the Diloc logo on the right side.

Figure 3.4: Product Features and Specifications. This image provides a visual summary of the Diloc Over series, highlighting energy saving, compact design, and various functions like Wi-Fi integration, ECO mode, and timer, along with a detailed specification table for different models.
4. Setup and Installation
Professional Installation Recommended: The installation of this monosplit air conditioning system, including refrigerant piping and electrical connections, requires specialized knowledge and tools. It is strongly recommended that installation be performed by a certified HVAC technician to ensure proper functioning, safety, and warranty validity.
General Steps (for qualified technicians):
- Site Selection: Choose appropriate locations for both the indoor and outdoor units, ensuring adequate space for airflow and maintenance.
- Mounting: Securely mount the indoor unit on the wall and the outdoor unit on a stable surface or wall bracket.
- Piping Connection: Connect the refrigerant lines between the indoor and outdoor units, ensuring proper insulation and leak-free connections.
- Drainage Connection: Install the condensate drain pipe for the indoor unit, ensuring proper slope for water drainage.
- Electrical Wiring: Connect the power supply and communication cables according to the wiring diagram provided in the detailed installation manual (not included here).
- Vacuuming and Refrigerant Charging: Evacuate the system to remove air and moisture, then charge with the correct amount of R-32 refrigerant.
- Test Run: Perform a test run to verify all functions and check for any abnormalities.
Wi-Fi Setup:
Once the unit is installed and powered on, refer to the separate Wi-Fi module instruction manual or the manufacturer's app for instructions on connecting your air conditioner to your home Wi-Fi network and controlling it via your smartphone.
5. Operating Instructions
Your Naicon Diloc Over air conditioner can be operated using the supplied wireless remote control or via the integrated Wi-Fi function through a smartphone application.
Basic Operation with Remote Control:
- Power ON/OFF: Press the ON/OFF button to start or stop the unit.
- Mode Selection: Press the MODE button to cycle through available modes:
- AUTO: The unit automatically selects the operating mode (cooling, heating, or fan) based on the room temperature.
- COOL: Provides cooling. Set desired temperature using TEMP ▲/▼ buttons.
- HEAT: Provides heating. Set desired temperature using TEMP ▲/▼ buttons.
- DRY (Dehumidify): Reduces humidity without significant temperature change.
- FAN: Circulates air without cooling or heating. Adjust fan speed using FAN SPEED button.
- Temperature Adjustment: Use the TEMP ▲/▼ buttons to set your desired temperature.
- Fan Speed: Press the FAN SPEED button to select between Auto, Low, Medium, or High fan speeds.
- Swing Function: Press the SWING button to activate or deactivate the automatic louver oscillation (AUTO SWING).
- Timer Function: Use the TIMER ON/OFF buttons to set a specific time for the unit to turn on or off. Refer to the remote control manual for detailed timer settings.
- ECO Function: Activate the ECO button for energy-saving operation.
For detailed instructions on advanced features and Wi-Fi control, please consult the specific remote control manual and the smartphone application guide.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your air conditioner. Always turn off the power supply to the unit before performing any maintenance.
Filter Cleaning:
- The air filters should be cleaned every two weeks or more frequently depending on usage and air quality.
- Open the front panel of the indoor unit.
- Carefully remove the air filters.
- Clean the filters with a vacuum cleaner or wash them with lukewarm water and a mild detergent.
- Rinse thoroughly and allow them to dry completely in a shaded area before re-installing.
- Do not expose filters to direct sunlight or heat for drying.
Unit Exterior Cleaning:
- Wipe the indoor and outdoor unit exteriors with a soft, damp cloth.
- Do not use harsh detergents, abrasive cleaners, or solvents, as these can damage the surfaces.
Seasonal Maintenance:
- At the beginning and end of each season, it is recommended to have a qualified technician inspect the refrigerant levels, electrical connections, and overall system performance.
7. Troubleshooting
Before contacting service, please check the following common issues:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not start | No power; circuit breaker tripped; remote control batteries low. | Check power supply; reset circuit breaker; replace remote control batteries. |
| Insufficient cooling/heating | Dirty air filters; blocked air inlets/outlets; wrong mode selected; temperature setting too high/low. | Clean air filters; ensure clear airflow; select correct mode; adjust temperature setting. |
| Unusual noise | Loose parts; foreign objects; unit not level. | Check for loose parts; remove foreign objects; ensure unit is level. If noise persists, contact service. |
| Water leakage from indoor unit | Blocked drain pipe; improper installation. | Check and clear drain pipe; contact qualified technician for inspection. |
| Remote control not working | Batteries dead or incorrectly inserted; obstruction between remote and unit. | Replace batteries; ensure correct polarity; remove obstructions. |
If the problem persists after trying these solutions, please contact a qualified service technician.
8. Specifications
Technical specifications for the Naicon Diloc Over 9000 BTU Inverter Monosplit Air Conditioner (Model D.OVER09W):
| Feature | Value |
|---|---|
| Brand | Naicon |
| Cooling Capacity | 9000 British Thermal Units (BTU) |
| Special Features | AUTO SWING, BLUE FIN anti-corrosion, Dehumidifier, ECO function, TIMER function, Integrated Wi-Fi |
| Product Dimensions (Outdoor Unit, D x W x H) | 32.5 x 81.8 x 52 cm |
| Model Year | 2023 |
| Seasonal Energy Efficiency Ratio (SEER) | 15 |
| Color | White |
| Noise Level | 22 Decibels |
| Refrigerant | R-32 |
| Filter Type | Prefilter |
Note: Specifications are subject to change without notice for product improvement.
9. Warranty and Support
For warranty information, please refer to the warranty card included with your product or contact your retailer/installer. Keep your purchase receipt as proof of purchase for warranty claims.
For technical support, service, or spare parts, please contact the authorized Naicon service center or your product supplier. Do not attempt to service the unit yourself.





