1. Introdução
Welcome to the user manual for your Merten MEG5935-0000 Wiser Radiator Thermostat. This document provides essential information for the safe and efficient installation, operation, and maintenance of your device. Please read this manual thoroughly before using the product and retain it for future reference.
The Merten MEG5935-0000 is a smart radiator thermostat designed to provide precise temperature control for individual rooms, enhancing comfort and energy efficiency within your home. It integrates with the Wiser smart home system for convenient app-based control.
2. Informações de segurança
- Segurança elétrica: Installation should only be performed by a qualified electrician or competent person in accordance with national wiring regulations.
- Manuseio da bateria: Use only the specified battery type (3 Volt). Do not mix old and new batteries, or different types of batteries. Dispose of used batteries according to local regulations.
- Condições ambientais: Não exponha o dispositivo a temperaturas extremas, luz solar direta, umidade ou ambientes corrosivos.
- Crianças: Mantenha o dispositivo e seus componentes fora do alcance de crianças.
- Uso pretendido: This device is intended for controlling radiator heating systems in residential environments. Any other use is considered improper.
3. Conteúdo da embalagem
Por favor, verifique se todos os itens estão presentes em sua embalagem:
- Merten MEG5935-0000 Wiser Radiator Thermostat
- Hardware de instalação
- Manual do usuário (este documento)
4. Produto acabadoview

The image displays the Merten MEG5935-0000 Wiser Radiator Thermostat. It is a compact, cylindrical device, primarily light grey with a darker grey base. The top section is a rotatable cap for manual temperature adjustment. A small green LED indicator is visible below the cap. The word 'Wiser' is printed vertically on the main body. Below this, '+' and '-' symbols indicate manual temperature adjustment buttons or areas. The base features a threaded connection for mounting onto a radiator valve.
The Merten MEG5935-0000 Wiser Radiator Thermostat features a sleek design with intuitive controls. It includes a rotatable cap for manual temperature adjustments, an LED indicator for status feedback, and integrated buttons for fine-tuning settings. Its primary function is to regulate the flow of hot water into your radiator, maintaining your desired room temperature.
5. Configuração
5.1. Instalação Física
- Prepare the Radiator Valve: Ensure your radiator valve is compatible with the thermostat. If necessary, use appropriate adapters from the included installation hardware.
- Insira as baterias: Open the battery compartment (usually located at the back or bottom of the device). Insert the required 3 Volt batteries, ensuring correct polarity. Close the compartment securely.
- Mount the Thermostat: Carefully screw the radiator thermostat onto the radiator valve. Tighten it firmly but do not overtighten.
- Calibração inicial: The thermostat may perform an initial calibration cycle after installation. Follow any on-screen prompts or LED indicators.
5.2. Emparelhamento e Conexão Iniciais
The Merten MEG5935-0000 uses Wi-Fi connectivity and app control for smart functionality. To pair your device:
- Download the Wiser App: Procurar the 'Wiser' app on your Android or iOS device's app store and install it.
- Criar uma conta: Open the app and follow the instructions to create a new user account or log in to an existing one.
- Adicionar dispositivo: In the Wiser app, navigate to the 'Add Device' section. Select 'Radiator Thermostat' or a similar option.
- Siga as instruções no aplicativo: The app will guide you through the pairing process, which typically involves putting the thermostat into pairing mode (refer to the device's LED indicators) and connecting it to your home Wi-Fi network.
- Dê um nome ao seu dispositivo: Assign a descriptive name to your thermostat (e.g., 'Living Room Radiator').
6. Operação
6.1. Controle Manual
You can adjust the temperature directly on the thermostat:
- Temperatura de ajuste: Rotate the top cap clockwise to increase the temperature or counter-clockwise to decrease it. Alternatively, use the '+' and '-' buttons/areas on the device body for fine adjustments.
- Indicador LED: Observe the LED indicator for feedback on the current status or temperature setting.
6.2. Controle de aplicativos
For advanced control and scheduling, use the Wiser app:
- Ajuste remoto de temperatura: Change the temperature from anywhere using your smartphone.
- Agendamento: Set up heating schedules for different times of the day and week to optimize comfort and energy usage.
- Modos: Utilize various heating modes (e.g., Away, Eco, Boost) available in the app.
- Controle de zona: If you have multiple Wiser devices, manage different heating zones independently.
7. Manutenção
- Limpeza: Clean the exterior of the thermostat with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture.
- Substituição da bateria: When the battery level is low (indicated by the app or a specific LED pattern on the device), replace the batteries promptly with new 3 Volt batteries. Follow the instructions for battery insertion carefully.
- Atualizações de firmware: Periodically check the Wiser app for available firmware updates for your thermostat to ensure optimal performance and access to new features.
8. Solução De Problemas
- Dispositivo não responde: Check battery level. Ensure the device is properly mounted and not obstructed.
- Sem conexão com o aplicativo: Verify your home Wi-Fi network is active and the thermostat is within range. Restart your Wi-Fi router and the thermostat. Re-attempt the pairing process if necessary.
- Leitura de temperatura incorreta: Ensure the thermostat is not exposed to direct heat sources (e.g., sunlight, other appliances) or drafts that could affect its sensor.
- Radiator Not Heating/Cooling: Check if the valve is fully open/closed. Ensure the thermostat is correctly calibrated. Verify the desired temperature setting in the app or on the device.
- Problemas com indicadores LED: Refer to the Wiser app or online support resources for specific LED pattern meanings.
9. Especificações
| Recurso | Especificação |
|---|---|
| Marca | MERTEN |
| Número do modelo | MEG5935-0000 |
| Dimensões do produto | 58 x 23 x 23 cm; 80 g |
| Fonte de energia | Bateria |
| Volumetage | 3 volts |
| Tecnologia de Conectividade | Wi-fi |
| Tipo de controle | App Control (Android) |
| Componentes incluídos | Hardware de instalação |
| Primeira data disponível | 15 de janeiro de 2020 |
10. Informações de garantia
The Merten MEG5935-0000 Wiser Radiator Thermostat is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Merten webConsulte o site para obter os termos e condições detalhados referentes à cobertura da garantia, duração e procedimentos de reclamação. Guarde seu comprovante de compra para fins de garantia.
11. Suporte
For further assistance, technical support, or inquiries not covered in this manual, please contact Merten customer support. You can typically find contact information (phone numbers, email, support portals) on the official Merten website or within the Wiser app's help section. When contacting support, please have your product model number (MEG5935-0000) and purchase details ready.





