1. Introdución
This manual provides comprehensive instructions for the safe and efficient operation, installation, and maintenance of your Daitsu DS-12 UDIN Wall-Split Inverter Air Conditioner. Please read this manual thoroughly before using the appliance and keep it for future reference. This unit is designed to provide both cooling and heating functions for optimal indoor climate control.
2. Información de seguridade
Siga sempre as seguintes precaucións de seguridade para evitar lesións ou danos na unidade:
- Installation must be performed by a qualified professional in accordance with local electrical and safety regulations.
- Non intente reparar nin modificar a unidade vostede mesmo. Póñase en contacto co persoal de servizo autorizado para todas as reparacións.
- Ensure the power supply matches the specifications listed on the unit's nameplate.
- Non introduza os dedos nin obxectos na entrada/saída de aire.
- Manteña os materiais inflamables lonxe da unidade.
- Regularly clean the air filter to maintain efficiency and air quality.
- If abnormal operation, strange sounds, or smoke occurs, immediately turn off the unit and disconnect the power supply.
3. Produto rematadoview
The Daitsu DS-12 UDIN is a wall-mounted split-system air conditioner consisting of an indoor unit and an outdoor unit. It features inverter technology for energy-efficient climate control.

Image: The Daitsu DS-12 UDIN indoor unit, showcasing its sleek white design and 'inverter' and 'daitsu' branding.

Imaxe: Fronte view of the Daitsu DS-12 UDIN indoor unit with its digital display showing '25' degrees Celsius, indicating current temperature or setting.

Imaxe: En ángulo view of the Daitsu DS-12 UDIN indoor unit, highlighting its modern design and the digital temperature display.
Dimensións da unidade:
- Unidade interior: Alto 275 mm x Ancho 790 mm x Fondo 200 mm
- Unidade exterior: Alto 596 mm x Ancho 842 mm x Fondo 320 mm
4. Configuración e instalación
Installation of the Daitsu DS-12 UDIN split-system air conditioner requires specialized knowledge and tools. It is strongly recommended that installation be carried out by a certified HVAC professional to ensure proper functioning, safety, and compliance with warranty conditions.
Consideracións clave para a instalación:
- Localización: Choose a location for both indoor and outdoor units that allows for optimal airflow, minimal obstruction, and easy access for maintenance.
- Montaxe: Securely mount the indoor unit on a wall and the outdoor unit on a stable surface or wall bracket.
- Tubería de refrixerante: Connect the indoor and outdoor units with appropriate refrigerant piping, ensuring proper insulation and leak-free connections.
- Drenaxe: Install a drainage pipe for condensate water from the indoor unit.
- Conexión eléctrica: Connect the unit to a dedicated power supply circuit as per electrical codes. Ensure proper grounding.
- Vacuuming and Refrigerant Charge: The system must be thoroughly vacuumed to remove air and moisture before charging with the correct amount of refrigerant (R32).
5. Instrucións de funcionamento
Your Daitsu DS-12 UDIN air conditioner offers various modes and functions for customized comfort. Control is typically managed via a remote control (not detailed in this manual).

Image: Visual representation of the operating temperature range and various function icons including Turbo, Swing, Dry, Timer, Light, Sleep, 4 Speeds, X-FAN, Test, Start, Intelligent Defrosting, and Lock.
Main Operating Modes:
- Modo de arrefriamento: Reduces room temperature to the desired setting.
- Modo de calefacción: Increases room temperature to the desired setting.
- Modo seco: Dehumidifies the air, reducing humidity levels.
- Modo de ventilador: Circula o aire sen arrefriar nin quentar.
Funcións especiais:

Image: Detailed descriptions of various operating functions: Turbo, Active Carbon Filter, Swing, Dry, Timer, Light, Sleep, Four Air Speeds, X-FAN, Test, Start, Intelligent Defrosting, Reset, and Lock.
- Función Turbo: Rapidly increases cooling or heating capacity to reach the desired temperature quickly.

Image: Diagram illustrating the 'TURBO' function, which rapidly increases cooling capacity to reach the desired temperature quickly.
- Función de balanceo: Automatically moves the air outlet louvers vertically to distribute air evenly.
- Dry Function: Reduce a humidade na sala.
- Temporizador: Allows programming of operation for up to 24 hours.
- Función de luz: Turns off all indicator lights on the indoor unit display.
- Función de sono: Adjusts room temperature for optimal comfort and energy saving during sleep.
- Four Air Speeds: High for rapid dehumidification, Medium for normal operation, Low for silent operation, and Auto option to select appropriate speed.
- X-FAN Function: Ensures the internal unit's heat exchanger is dried to prevent mold formation.

Image: Diagram showing the 'X-FAN' function, which eliminates residual humidity to prevent mold formation on the heat exchanger, keeping the unit clean and healthy.
- Función de proba: Checks the appliance's operation and displays error codes on the indoor unit panel.
- Start Function: The indoor unit fan only activates when the heat exchanger reaches the ideal temperature.
- Desconxelación intelixente: An intelligent defrosting system that activates only when necessary, significantly increasing energy savings and comfort.
- Función de bloqueo: Locks the remote control settings to prevent accidental changes.
6. Mantemento
Un mantemento regular garante a lonxevidade e o funcionamento eficiente do seu aire acondicionado. Desconecte sempre a alimentación antes de realizar calquera mantemento.
Limpeza do filtro de aire:
- Abra o panel frontal da unidade interior.
- Retire os filtros de aire.
- Limpa os filtros cun aspirador ou lávaos con auga morna (por debaixo de 40 °C).
- Deixe que os filtros sequen completamente nunha zona á sombra antes de volvelos instalar.
- Limpar os filtros cada dúas semanas ou con máis frecuencia dependendo do uso e da calidade do aire.
Unit Surface Cleaning:
- Wipe the indoor and outdoor unit surfaces with a soft, damp pano.
- Do not use harsh detergents, abrasive cleaners, or solvents, as these can damage the plastic parts.
Mantemento estacional:
- At the beginning of each season (cooling/heating), check for any obstructions around the outdoor unit.
- Ensure the drainage hose is clear and not blocked.
- Consider professional inspection and cleaning annually.
7 Solución de problemas
Antes de contactar co servizo técnico, comproba os seguintes problemas comúns:
- A unidade non arranca: Check if the power plug is securely inserted, the circuit breaker is tripped, or the remote control batteries are dead.
- Refrixeración/quecemento insuficiente: Ensure air filters are clean, windows and doors are closed, and there are no obstructions to airflow. Check if the temperature setting is appropriate.
- Ruídos pouco comúns: A slight gurgling sound is normal due to refrigerant flow. Loud or persistent noises may indicate an issue.
- Water leakage from indoor unit: Check if the drainage hose is blocked or kinked.
If the problem persists after checking these points, or if an error code is displayed (use the Test function), please contact a qualified service technician. Do not attempt to repair the unit yourself.
8. Especificacións
Technical data for the Daitsu DS-12 UDIN Wall-Split Inverter Air Conditioner.

Image: Technical data sheet for the Daitsu DS-12 UDIN, detailing power, efficiency, sound levels, and refrigerant type.
| Característica | Especificación |
|---|---|
| Marca | Daitsu |
| Nome do modelo | DS-12 UDIN (ASD12UI DN) |
| Número de peza | 3NDA8325 |
| Tipo | Wall-Split Inverter Air Conditioner |
| Capacidade de refrixeración | 3.2 kW (Min 0.6 - Max 3.6 kW) / 12000 BTU / 1 Ton |
| Capacidade de calefacción | 3.4 kW (Min 0.6 - Max 3.8 kW) |
| SEER (índice de eficiencia enerxética estacional) | 6.1 |
| SCOP (Seasonal Coefficient of Performance) | 4.0 |
| Energy Label (Cooling/Heating) | A+++ / A+ |
| PDesign (Cooling/Heating) | 3.2 kW / 3.2 kW |
| Indoor Unit Sound Pressure (A/M/B) | 42/37/35 dBA |
| Outdoor Unit Sound Pressure | 52 dBA |
| Indoor Unit Airflow (Max/Min) | 560 / 410 m³/h |
| Outdoor Unit Airflow | 2200 m³/h |
| Fonte de alimentación | 230V / 1 Phase / 50 Hz |
| Absorbed Power (Cooling/Heating) | 0.99 kW / 0.94 kW |
| Annual Energy Consumption (Cooling/Heating) | 184 kWh/a / 1120 kWh/a |
| Pipe Diameter (Liquid/Gas) | 6.35 mm / 9.52 mm |
| Tipo de refrixerante | R32 (GWP approx. 675) (Note: Technical sheet image indicates R410A, please verify with product label) |
| Pre-charge / Max. Pipe Length | 5 m / 15 m |
| Operating Range (Cooling) | -15°C a 43°C |
| Operating Range (Heating) | -15°C a 24°C |
| Dimensións da unidade interior (Al x An x Pr) | 275 x 790 x 200 mm |
| Dimensións da unidade exterior (Al x An x Pr) | 596 x 842 x 320 mm |
| Cor | Branco |
| Método de instalación | Sistema dividido |
9. Garantía e soporte
For warranty information, please refer to the warranty card included with your product or contact your local Daitsu dealer. Keep your purchase receipt as proof of purchase.
For technical support, service requests, or spare parts, please contact the authorized Daitsu service center in your region. Do not attempt to service the unit yourself.