Introdución
This manual provides essential information for the safe and efficient operation of your Midea 12000 BTU Mini Split AC/Heating System. Please read this manual thoroughly before installation and use, and retain it for future reference.
Información de seguridade
Important: This unit requires professional installation. Do not attempt to install or service the unit yourself. Improper installation can result in electric shock, fire, or serious injury.
- Always ensure the power supply is disconnected before any maintenance or cleaning.
- Non introduza obxectos na saída ou entrada de aire.
- Manteña os nenos e as mascotas lonxe da unidade durante o funcionamento.
- Asegurar a posta a terra adecuada para evitar riscos eléctricos.
Características do produto
- Eficiencia enerxética: 12,000 BTU 20.8 SEER2 inverter system with DC Inverter technology, offering up to 71% energy saving in ECO mode.
- Funcionamento silencioso: Indoor unit operates as quietly as 19 dBa, ensuring minimal disturbance.
- Funcionalidade 4 en 1: Provides Cooling, Heating (heat pump), Dehumidifier, and Fan modes for year-round comfort.
- Control intelixente: Wi-Fi enabled, compatible with Alexa and Google Home for remote control via app or voice commands.
- Autolimpeza: Automatically washes away dust, mold, and allergens from the coil and blow-dries to maintain internal cleanliness.
- Amplio rango de operación: Designed to operate effectively in extreme high and low ambient temperatures.
- Flexible Airflow: Features 4 fan speeds (low/medium/high/auto) and sleep mode for personalized comfort.
Compoñentes incluídos
The Midea Mini Split AC/Heating System includes the following main components:
- Indoor Air Handler Unit
- Unidade condensadora exterior
- Unidade de control remoto

Image: Midea Mini Split AC/Heating System components, illustrating the indoor unit, outdoor unit, and remote control, packaged in two separate boxes. Dimensions for both units are provided.
Configuración e instalación
Note: This is NOT a DIY system. Professional installation is required to ensure proper function, safety, and warranty validity.
The system is pre-charged with refrigerant. Installation involves mounting the indoor and outdoor units, connecting refrigerant lines, electrical wiring, and drainage. Consult a certified HVAC technician for installation.

Image: Guide for selecting the appropriate BTU rating based on room size, with examples for 9K, 12K, 18K, and 24K BTU units.

Image: Infographic illustrating various factors that influence the required BTU rating for an AC unit, such as sunlight exposure, ceiling height, insulation, climate, family size, and presence of heat-generating appliances.
Instrucións de funcionamento
Control remoto
The system is controlled via the included remote. The remote allows you to select operating modes, adjust temperature, fan speed, and access special features.

Image: A woman controlling the Midea Mini Split AC indoor unit with her smartphone, highlighting the Wi-Fi connectivity and compatibility with voice assistants like Alexa and Google Home.
Modos de funcionamento
- Modo de arrefriamento: Provides efficient cooling to lower room temperature.
- Modo de calefacción: Utilizes the heat pump function to warm the room.
- Modo seco: Dehumidifies the air, reducing humidity levels without significant cooling.
- Modo de ventilador: Fai circular o aire sen quentar nin arrefriar.
- Modo ECO: Optimizes energy consumption for maximum efficiency.
- Modo de suspensión: Axusta a temperatura e a velocidade do ventilador para un sono cómodo e aforro de enerxía.

Image: The Midea Mini Split AC indoor unit demonstrating its rapid heating and cooling capabilities, with visual representations of warm and cool air distribution.
Funcións intelixentes
Connect your Midea Mini Split to your home Wi-Fi network to enable control via the Midea app, Alexa, or Google Home. This allows for remote temperature adjustments and scheduling.

Image: A user interacting with the Midea app on a smartphone to control the mini split AC unit, showcasing the convenience of remote operation.
Mantemento
Un mantemento regular garante un rendemento óptimo e unha maior duración da súa unidade.
- Limpeza de filtros: Clean the air filters regularly (every 2-4 weeks, depending on usage) to maintain airflow and efficiency. Refer to the full user manual for detailed instructions on filter removal and cleaning.
- Función de autolimpeza: Utilize the unit's self-cleaning feature to keep the internal coils free from dust and mold.
- Unidade exterior: Keep the outdoor condenser unit clear of debris, leaves, and snow to ensure proper airflow.
- Servizo profesional: Schedule annual professional maintenance to check refrigerant levels, electrical connections, and overall system health.

Imaxe: Unha detallada view of the Midea Mini Split AC's self-cleaning mechanism, illustrating how it cleans the internal components to prevent dust and mold buildup.
Resolución de problemas
If you encounter issues, refer to the following common troubleshooting tips. For complex problems, contact a qualified technician.
| Problema | Causa posible | Solución |
|---|---|---|
| A unidade non se acende | Sen electricidade, pilas do mando a distancia descargadas, disyuntor saltado. | Comprobe a fonte de alimentación, substitúa as pilas do mando a distancia e reinicie o disyuntor. |
| Refrixeración/quecemento insuficiente | Dirty air filters, blocked outdoor unit, incorrect mode setting, low refrigerant. | Clean filters, clear obstructions from outdoor unit, select correct mode, contact technician for refrigerant check. |
| Ruído insólito | Loose parts, fan obstruction, normal operating sounds (e.g., refrigerant flow). | Inspect for loose parts or obstructions. If persistent or loud, contact technician. |
Especificacións
| Característica | Detalle |
|---|---|
| Marca | Midea |
| Número de modelo | MASAG12-21HS1G |
| Potencia de refrixeración | 12000 unidades térmicas británicas (BTU) |
| Voltage | 115 voltios |
| Índice de eficiencia enerxética estacional (SEER2) | 20.8 |
| Nivel de ruído (unidade interior) | 19 decibeis (mínimo) |
| Método de instalación | Sistema dividido |
| Característica especial | Remote Controlled, Wi-Fi Enabled (Alexa/Google Home compatible) |
| Compoñentes incluídos | Indoor Air Handler, Outdoor Condenser, Remote Control |
| Dimensións do produto (unidade interior) | 11.93 cm de profundidade x 30.12 cm de ancho x 21.85 cm de alto (aproximadamente) |
| Peso do elemento | 29.7 libras (aproximadamente) |

Image: Official U.S. Government EnergyGuide label for the Midea Split System, displaying its Cooling Efficiency Rating (SEER2) of 20.80 - 20.90 and Heating Efficiency Rating (HSPF2) of 8.00 - 8.70.
Garantía e Soporte
Midea offers a comprehensive warranty for your peace of mind:
- Garantía de pezas: 2 anos
- Garantía do compresor: 5 anos
For technical assistance, warranty claims, or any product-related inquiries, please contact our professional US-based technical support team. Refer to your purchase documentation for specific contact details.





