Weather compensator CR400 with outdoor temperature sensor and weekly programming, for wall or boiler mounting, with weekly programming 8734100955

Intelligent thermal comfort control with CR400

The CR400 weather compensating controller is an advanced device that allows for precise and efficient management of the heating system in your home. Designed for both wall mounting and direct mounting in the boiler, it offers a wide range of functions that translate into user comfort and energy savings. The package includes an outdoor temperature sensor, which enables regulation of the system's operation based on weather conditions.

Functionality tailored to needs

CR400 is a versatile solution for installers and end-users. It supports from 1 to 4 central heating circuits – both with mixing valves (in combination with MM100 modules) and without them. Additionally, it allows control of 1 to 2 domestic hot water circuits and 1 to 2 DHW circulation circuits. Equipped with a graphic display, the controller provides intuitive operation and easy access to all settings.

Advanced system expansion capabilities

This controller is not limited to basic functions. The ability to control up to 4 boilers in a cascade (with the MC400 module) or even 16 boilers (with five MC400 modules) makes it an ideal solution for larger installations. In addition, CR400 works with the MS100 or MS200 solar module, enabling optimization of solar energy use for heating domestic hot water. Cooperation with the Vent heat recovery ventilation unit (in newer versions) is another advantage of this device.

• Weekly programming: Allows you to set individual schedules for the heating system, tailored to your lifestyle – up to 6 times a day gives you full control over the temperature in your home.
• Weather-compensated control: Thanks to the outdoor temperature sensor, the controller automatically adjusts the operation of the heating system to the prevailing weather conditions, ensuring optimal comfort and energy savings.
• Freeze protection: Protects the installation from damage caused by low temperatures.
• Thermal disinfection of DHW: Eliminates Legionella bacteria from domestic hot water, ensuring safety for the whole family.
• "Vacation" mode: Allows you to maintain a minimum temperature in the house during your absence, preventing the installation from freezing and saving energy.
• Mobile control: In combination with the Bosch HomeCom Easy app and the Connect-Key K30RF or K40RF module, it enables remote control of the heating system using a smartphone or tablet – change temperatures and schedules wherever you are!