Vaillant multiMATIC 700 f

Product detailed description

VAILLANT multiMatic 700 f - wireless weather-compensated control 

Intelligent control of the whole system

The new weather-compensated system controller multiMATIC 700 is characterised by a clean design and simple, intuitive control via a rotary navigation knob. It is designed for households as well as for more complex systems. It can be used in combination with almost all Vaillant heating systems. With the appropriate modules, also in combined hybrid systems, including solar heating and a ventilation unit with heat recovery. For easier operation, it is equipped with a backlit text display, which also shows the solar yield, the heat pump's energy yield and energy consumption.

Convenient remote control of heating

The multiMATIC 700 controller is programmed to provide households with high comfort and efficiency. If the heating system is combined with the internet communication module VR 920, it can be easily controlled remotely - using a Wi-Fi connection and the multiMATIC app for smartphone and tablet. Preset profiles such as "Home", "Night" or "Away" make it easier to control the system according to individual needs. Another plus: the option of remote diagnostics and optimisation of heating operation based on a contract with the relevant Vaillant service technician, which saves both time and money.

Features

• triVAI function (calculates the most efficient way of heating, gas / electricity - cost comparison)
• Intuitive control thanks to clear menu navigation and a backlit text display
• Together with the internet communication module VR 920 it allows heating to be controlled using a smartphone and tablet - wherever you are
• Universal use in combination with almost all Vaillant heating systems
• Wireless communication with the boiler - version f

Optional accessories: 

Multifunction module VR 40

Using the VR 40 module, the controller can activate, for example, the circulation pump.

Mixing module VR 70

With the VR 70 mixing module you can control 2 heating circuits - one direct and one mixed, or two mixed circuits, or a solar system and one heating circuit, or a buffer tank and one heating circuit.

Mixing module VR 71

Option to control up to three direct or mixed heating circuits and a solar system.

Remote control of the heating circuit VR 91

If you want to directly set the temperature of the second mixed heating circuit, you can use the VR 91 remote control module.

Frequently Asked Questions

• How exactly do I choose the output of a VAILLANT condensing boiler? The starting point is the calculated heat loss of the building being heated (most reliably taken from the project documentation or an energy certificate). If you don't have a project, you can estimate roughly 60-100 W per m² of floor area for a typically insulated house built after 2000, or 100-150 W/m² for an older, non-insulated house - the exact figure varies depending on the number of floors, ceiling height, number and quality of windows, and building orientation. An oversized boiler switches on and off more often (so-called cycling), which shortens its lifespan and reduces efficiency; an undersized boiler, on the other hand, cannot adequately heat the house on frosty days.
• Why is a condensing boiler more economical than a conventional one? A condensing boiler additionally uses the heat hidden in the water vapour produced when burning gas - in a conventional boiler this escapes unused through the chimney, while in a condensing boiler it is cooled below the so-called dew point, the vapour condenses and the released heat is returned to the heating circuit. As a result, condensing boilers achieve an efficiency of around 105-110% relative to the calorific value of the gas, compared to the usual 85-92% for conventional boilers.
• What type of flue gas exhaust does this boiler need? Most modern condensing boilers are so-called turbo boilers (with a sealed combustion chamber) and require a coaxial (concentric) or separate flue gas exhaust and combustion air intake routed through the perimeter wall or roof - so a functional chimney is not needed. The exact type and maximum length of the exhaust (depending on the diameter, 60/100 or 80/125 mm) can be found in the technical documentation for the specific model, or you can consult our customer service.
• What does the ErP energy class stated for the boiler mean? This is a mandatory efficiency label for heating appliances under the EU ErP (Ecodesign) directive, similar to the energy labels used for refrigerators. Condensing boilers commonly achieve class A, or even higher when combined with room controls (e.g. A+ when using weather-compensated control together with a room thermostat).
• Can I install and connect this boiler myself? No. Connection to the natural gas supply, the electrical network and the flue gas exhaust is, by law, exclusively the responsibility of a person with the appropriate authorisation (most commonly an authorised service technician of the given brand or a gas appliance inspection technician). After installation, the boiler must be commissioned by the manufacturer's authorised service, which is usually also a condition for the warranty to remain valid.
• What about servicing and the warranty? Most manufacturers require a regular annual service inspection by an authorised service provider in order to keep the warranty valid even after its standard expiry (an extended warranty with regular servicing is common especially for brands such as Vaillant, Protherm and Viessmann). The exact warranty terms can be found in the warranty certificate supplied with the boiler.
• What is included in the delivery of this specific product? The exact package contents (the boiler itself, possibly a hot water tank, room controls and other accessories in the case of a set) are stated in the product name and in its technical parameters above on this page.