Kermi 350 Boost Heat Recovery Unit (WiFi gateway, RF switch, siphon) Ventilation unit with heat recovery 350 Y110435001101K

Heat recovery ventilation unit – Kermi 350 Boost

This is an advanced solution for mechanical ventilation with heat recovery, designed for both demanding installers and users who appreciate comfort and savings. The Kermi 350 Boost recuperator combines high efficiency, intelligent control and a durable construction, ensuring optimal air quality in every home.

Performance and efficiency

The device offers a maximum performance of 350 m³/h at a pressure of 150 Pa, making it an ideal choice for single-family homes. High heat recovery, reaching up to 91%, allows for significant reduction of energy losses associated with heating. This reduces operating costs and protects the environment. Characteristic C allows it to react more slowly to short current surges, therefore it tolerates starting devices with a motor well. The built-in summer bypass (100%) allows for effective cooling of rooms on hot days, ensuring thermal comfort throughout the year. The ISO ePM1 55% air filter effectively stops pollen, dust and other pollutants, delivering clean and healthy air to your home.

Intelligent control and user comfort

The Kermi 350 Boost recuperator is equipped with a WiFi gateway, which enables remote control of the device using the Vasco Climate Control mobile application (available on Android and iOS). The application offers a weekly programmer with five ventilation intensity levels, current gear changes and a "fireplace" program – a temporarily increased supply level useful when burning in a fireplace. Additionally, the application displays current temperatures in the recuperator, the status of the summer bypass, the preheater and the anti-freeze protection. The ability to manually open the bypass gives full control over the ventilation process. The included wireless RF switch allows for convenient selection of three ventilation intensity levels and activation of the timed ventilation function. The LED on the switch indicates correct device operation, signals any errors and reminds you to replace the filters.

Construction and installation

The recuperator housing is made of powder-coated steel, which guarantees durability and corrosion resistance. The internal structure made of EPP (expanded polypropylene) provides strength, excellent sound insulation and vibration damping. Internal connections are located both from the top and from the bottom, which facilitates installation in various configurations. The recuperator is designed for wall mounting. Standard anti-freeze protection (the "defrost" system) protects the device from damage at low temperatures by periodically reducing the supply. It is recommended to use a dedicated PTC preheater for optimal performance in difficult weather conditions. The connections to the installation have a diameter of 180 mm. Universal mounting options without re-arming (internal connections top/bottom, left/right rotation) make installation easier even in atypical spaces.

Additional functionalities

The recuperator control system allows integration with optional carbon dioxide CO2 sensors (for mounting in the living room) and humidity (for the bathroom). After wirelessly pairing the sensors with the recuperator, you can select program “A” – automatic adjustment of ventilation intensity based on the actual needs of users. A wall-mounted wireless LCD RF controller with a range of information and control functions similar to the mobile application is also available. For advanced installations, it is possible to control external systems via a 0-10V control signal or the MODBUS protocol.