1. Introdución
Thank you for choosing the Hisense AH121CK Split Air Conditioner. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your new air conditioning unit. Please read this manual thoroughly before using the appliance and retain it for future reference.
This unit is designed to provide comfortable cooling for your indoor environment with features like Smart Mode, Super Cool, and easy maintenance.

Image: Hisense CK Series Split Air Conditioner indoor unit.
2. Información de seguridade
Siga sempre as precaucións de seguridade básicas ao usar electrodomésticos para reducir o risco de incendio, descarga eléctrica ou lesións.
- Instalación profesional: Installation and maintenance should be performed by qualified service personnel. Improper installation can lead to electric shock, fire, or water leakage.
- Fonte de alimentación: Ensure the power supply matches the specifications of the unit (115V). Do not use extension cords or multi-outlet adapters.
- Conexión a terra: The appliance must be properly grounded to prevent electric shock.
- Nenos e animais: Manteña os nenos e as mascotas lonxe da unidade durante o funcionamento e o mantemento.
- Limpeza: Disconnect power before cleaning. Do not use water directly on the unit.
- Obstáculos: Do not block the air inlet or outlet of the indoor or outdoor unit.
- Refrigerante: This unit uses R-410A refrigerant. Do not attempt to service the refrigerant system yourself.
3. Características do produto
The Hisense AH121CK Air Conditioner is equipped with several features designed for comfort and convenience:
- Función intelixente: Automatically adjusts to the ambient temperature for optimal comfort.
- Super xenial: Rapidly cools the room by operating at maximum power and airflow.
- Síntome: Provides precise, comfortable, and uniform temperature control based on the remote control's sensor.
- Regulador: Allows you to turn off the light from the front panel.
- Limpeza fácil: The filter can be easily removed for cleaning with water.
- Detección de fugas de refrixerante: The evaporator automatically stops operation and displays an error code if a refrigerant leak is detected.
- Reinicio automático: The unit will resume operation immediately without manual intervention after a power outage.
- Temporizador de 24 horas: Programe a unidade para que se acenda ou apague a horas específicas.
- Desconxelación automática: Prevents ice buildup on the outdoor unit.
- Cold Air Protection: Prevents cold air from blowing directly when the unit starts in heating mode (if applicable).
- Función de sono: Axusta a temperatura e a velocidade do ventilador para un sono cómodo.
4. Configuración e instalación
The Hisense AH121CK is a split-type air conditioner, requiring both an indoor and an outdoor unit. Professional installation is highly recommended to ensure proper function and safety.
4.1 Desembalaxe
Carefully unpack all components. Verify that all items listed in the packing list are present and undamaged. Keep packaging materials for potential future transport or service.
4.2 Escolla un lugar de instalación
- Unidade interior: Select a location that allows for even air distribution, away from direct sunlight or heat sources. Ensure there is enough space around the unit for maintenance and airflow.
- Unidade exterior: Choose a location with good ventilation, away from obstacles that might block airflow. Ensure it is on a stable, level surface and away from noise-sensitive areas.
4.3 Conexión eléctrica
The unit requires a 115V electrical supply. All electrical work must comply with local codes and regulations and be performed by a licensed electrician. Ensure a dedicated circuit is used for the air conditioner.
5. Instrucións de funcionamento
Your Hisense AH121CK Air Conditioner is controlled via the included remote control. Familiarize yourself with the remote's buttons and functions.
5.1 Funcionamento básico
- Encendido/apagado: Preme o ON/OFF botón para iniciar ou parar a unidade.
- Selección de modo: Preme o MODO button to cycle through available modes (e.g., Cool, Dry, Fan, Smart).
- Axuste de temperatura: Usa o SUBIR/BAIXAR TEMP para configurar a temperatura desexada.
- Velocidade do ventilador: Preme o FAN botón para axustar a velocidade do ventilador (Automático, Baixa, Media, Alta).
5.2 Funcións especiais
- Modo intelixente: Preme o INTELIXENTE button. The unit will automatically adjust settings based on room conditions.
- Super xenial: Activate by pressing the SUPER button for rapid cooling.
- Síntome: Preme o SINTO button. The remote control will act as a thermostat, sensing the temperature around you for more accurate control.
- Regulator (Light Control): Preme o REGULADOR button to turn off the display light on the indoor unit, useful during sleep.
- Temporizador: Usa o TEMPORIZADOR ON / OFF buttons to set a scheduled operation time. Refer to the remote control manual for detailed timer settings.
- Función de sono: Preme o DURMIR button to activate a mode that gradually adjusts the temperature and fan speed for optimal sleeping conditions.

Image: Smart Mode functionality diagram.

Image: Super Cool feature in action.

Image: I Feel function for personalized comfort.

Image: Regulator function for display light control.
6. Mantemento
Un mantemento regular garante a lonxevidade e a eficiencia do seu aire acondicionado. Desconecte sempre a corrente antes de realizar calquera mantemento.
6.1 Limpeza do filtro de aire
O filtro de aire debe limparse cada dúas semanas ou con máis frecuencia dependendo do uso e da calidade do aire.
- Abra o panel frontal da unidade interior.
- Remove the air filter by gently pulling it out.
- Clean the filter with a vacuum cleaner or wash it with lukewarm water (below 40°C).
- Allow the filter to dry completely in a shaded area before reinstalling.
- Reinstale o filtro e peche o panel frontal.

Image: Easy filter cleaning process.
6.2 Limpeza xeral
Wipe the indoor unit with a soft, dry cloth. For stubborn dirt, use a damp un pano cun deterxente suave e logo seque. Non empregue produtos químicos agresivos nin produtos de limpeza abrasivos.
6.3 Comprobacións estacionais
- Before Season: Comprobe se hai algunha obstrución arredor da unidade exterior. Asegúrese de que a mangueira de drenaxe estea libre de auga.
- After Season: Clean the air filters and turn off the main power supply if the unit will not be used for an extended period.
7 Solución de problemas
Antes de contactar co servizo de atención ao cliente, volva aview os seguintes problemas e solucións comúns.
| Problema | Causa posible | Solución |
|---|---|---|
| A unidade non comeza | No power, circuit breaker tripped, remote control batteries low. | Comprobe a fonte de alimentación, reinicie o disyuntor e substitúa as pilas do mando a distancia. |
| Refrixeración insuficiente | Dirty air filter, blocked outdoor unit, wrong mode selected, room too large. | Clean filter, clear obstructions, select Cool mode, ensure unit capacity matches room size. |
| Ruídos pouco comúns | Pezas soltas, obxectos estraños, sons normais de funcionamento (por exemplo, fluxo de refrixerante). | Check for loose parts, remove foreign objects. If persistent or loud, contact service. |
| Fuga de auga | Manguera de drenaxe atascada, instalación incorrecta. | Check and clear drain hose. If issue persists, contact professional installer. |
| Código de erro mostrado | System malfunction, refrigerant leakage. | Note the error code and refer to the detailed troubleshooting section in the full manual or contact service. For refrigerant leakage, the unit will stop automatically. |

Image: Refrigerant Leakage Detection system.

Image: Automatic Restart function after power interruption.
8. Especificacións
| Especificación | Valor |
|---|---|
| Marca | Hisense |
| Nome do modelo | AH121CK |
| Capacidade | 1 toneladas (12000 unidades térmicas británicas) |
| Potencia de refrixeración | 12000 unidades térmicas británicas |
| Voltage | 115 voltios |
| Wattage | 1440 vatios |
| Nivel de ruído | 41 decibeis |
| Refrixerante | R-410A |
| Dimensións do produto (PxWxH) | 25.5 x 79 x 20 centímetros |
| Peso do elemento | 7.5 quilogramos |
| Índice de eficiencia enerxética estacional (SEER) | 11.5 |
| Clasificación BEE | 5 estrelas |
| Método de control | Control remoto |
| Método de instalación | Sistema dividido |
| Unidade exterior requirida | Si |
| Compoñentes incluídos | Control remoto, manual de usuario |
9. Información da garantía
The Hisense AH121CK Air Conditioner comes with a Garantía limitada do fabricante dun ano. Esta garantía cobre os defectos nos materiais e na fabricación no uso normal.
Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, neglect, or unauthorized repairs. For full warranty terms and conditions, please refer to the warranty card included with your product or contact Hisense customer support.
10. Atención ao cliente
If you have any questions, require assistance, or need to schedule service, please contact Hisense customer support:
Option 1: Phone Support
Chámanos a: 800 0088 880
Option 2: Online Support
Visita o noso oficial websitio: hisense.com.mx
Look for the 'Technical Support Chat' link in the bottom left corner of the websitio.
You can also call us at: +55 41 53 1200
Horario de funcionamento:
- Monday - Friday: 9:00 am - 9:00 pm
- Saturday: 9:00 am - 3:00 pm