Do you have a question about the Vaillant multiMATIC 700 and is the answer not in the manual?
Details DHW regulation by boiler, excluding solar systems, for System Diagram 1.
Explains DHW regulation by VRC 700 for System Diagram 2.
Details a 3 kW hybrid system in alternative mode for DHW by boiler only.
Covers a 3 kW hybrid system in parallel mode with 2 zones, DHW by boiler.
Details a standard heat pump system, monoenergy, with auxiliary heater and DHW by heat pump/boiler.
Describes a simple hybrid system where the auxiliary heater doesn't need the heat pump for DHW.
Details a monoenergy heat pump system with a heat exchanger and auxiliary heater for DHW.
Explains a standard heat pump system with heat exchanger, requiring pump for auxiliary heater.
Details a complete hybrid system where the auxiliary heater doesn't need the heat pump for DHW.
Describes a complete hybrid system with a heat exchanger, no auxiliary pump needed for DHW.
Details DHW regulation by boiler, excluding solar systems, for System Diagram 1.
Explains DHW regulation by VRC 700 for System Diagram 2.
Details a 3 kW hybrid system in alternative mode for DHW by boiler only.
Covers a 3 kW hybrid system in parallel mode with 2 zones, DHW by boiler.
Details a standard heat pump system, monoenergy, with auxiliary heater and DHW by heat pump/boiler.
Describes a simple hybrid system where the auxiliary heater doesn't need the heat pump for DHW.
Details a monoenergy heat pump system with a heat exchanger and auxiliary heater for DHW.
Explains a standard heat pump system with heat exchanger, requiring pump for auxiliary heater.
Details a complete hybrid system where the auxiliary heater doesn't need the heat pump for DHW.
Describes a complete hybrid system with a heat exchanger, no auxiliary pump needed for DHW.
The provided document is a series of system diagrams for Vaillant heating systems, accompanied by a legend. It does not contain a device manual or detailed descriptions of individual devices. Therefore, I cannot provide a description of a device based on the information given.
The document focuses on illustrating various system configurations for heating and hot water generation, including:
System diagram 1: Boiler with DHW regulation by the boiler (except in solar systems). This diagram shows a conventional boiler setup where the boiler directly manages domestic hot water (DHW) production. It likely involves a heat generator, a DHW cylinder, and associated pumps and valves to circulate heated water for both space heating and DHW. The control system (multiMATIC 700) would regulate the boiler's operation based on demand from the heating circuits and the DHW cylinder.
System diagram 2: Boiler with DHW regulation by VRC 700. Similar to diagram 1, but explicitly states that the VRC 700 (Vaillant's system controller) is responsible for DHW regulation. This implies a more integrated control approach where the VRC 700 orchestrates the boiler's output to meet DHW requirements, potentially optimizing efficiency and comfort.
System diagram 6: 3 kW hybrid system (alternative operation mode): DHW only by boiler. This diagram introduces a hybrid system, likely combining a heat pump with a boiler. In this specific mode, the boiler is solely responsible for DHW production, suggesting that the heat pump might be prioritized for space heating or that DHW production by the heat pump is not enabled in this configuration. The system would include a heat pump, a boiler, a DHW cylinder, and a control unit (multiMATIC 700) to manage the operation of both heat sources.
System diagram 7: 3 kW hybrid system (parallel operation mode with 2 circuits/zones): DHW only by boiler. This is an extension of the hybrid system, featuring two separate heating circuits or zones. The boiler continues to handle DHW, while the heat pump and boiler likely work in parallel for space heating across the two zones, with the multiMATIC 700 controller managing the distribution and prioritization of heat to each zone.
System diagram 8: Standard heat pump system, auxiliary heater requires pump of heat pump, monoenergy (DHW by heat pump and auxiliary heater or simple hybrid system (DHW by boiler only). This diagram illustrates a heat pump-centric system. The auxiliary heater (likely an electric immersion heater or the boiler in a hybrid setup) requires the heat pump's pump to operate, indicating a shared hydraulic circuit. In a monoenergy setup, both DHW and heating are primarily provided by the heat pump, with the auxiliary heater assisting when needed. If it's a simple hybrid, the boiler might handle DHW exclusively. The multiMATIC 700 would manage the heat pump, auxiliary heater, and DHW production.
System diagram 9: Simple hybrid system, auxiliary heater does not require pump of heat pump, DHW by boiler only. This hybrid system differentiates itself by allowing the auxiliary heater to operate independently of the heat pump's pump, suggesting separate hydraulic circuits or pumps for each heat source. DHW is exclusively handled by the boiler. This configuration offers flexibility in operation and maintenance, as one component can operate without relying on the other's pump. The multiMATIC 700 would coordinate the boiler and heat pump for space heating and the boiler for DHW.
System diagram 10: Heat pump system with heat exchanger, auxiliary heater requires heat exchanger pump, monoenergy (DHW only by heat pump). This diagram shows a heat pump system with an external heat exchanger, which is often used to separate the heat pump's refrigerant circuit from the building's heating circuit or for specific applications like swimming pool heating. The auxiliary heater, in this case, requires the heat exchanger pump, indicating its integration into the heat exchanger's circuit. DHW is provided solely by the heat pump, making it a monoenergy system. The multiMATIC 700 would manage the heat pump, heat exchanger, and DHW production.
System diagram 11: Standard heat pump system with heat exchanger, auxiliary heater requires pump of heat pump, monoenergy (DHW by heat pump and auxiliary heater). Similar to diagram 10, but the auxiliary heater directly uses the heat pump's pump, implying a closer integration of the two. DHW is provided by both the heat pump and the auxiliary heater, ensuring sufficient hot water even during peak demand or colder temperatures. The multiMATIC 700 would control the heat pump, auxiliary heater, and DHW production.
System diagram 12: Complete hybrid system, auxiliary heater does not require pump of heat pump (DHW by heat pump and boiler). This is a comprehensive hybrid system where the auxiliary heater operates independently of the heat pump's pump. DHW can be provided by both the heat pump and the boiler, offering maximum flexibility and redundancy. This setup is designed for optimal efficiency and comfort, with the multiMATIC 700 intelligently switching between heat sources based on demand, outdoor temperature, and energy costs.
System diagram 13: Complete hybrid system with heat exchanger, auxiliary heater does not require pump of heat pump (DHW by heat pump and boiler). This diagram combines the features of a complete hybrid system with an external heat exchanger. The auxiliary heater operates independently, and DHW can be generated by both the heat pump and the boiler. The heat exchanger provides additional hydraulic separation and flexibility, potentially for specific heating circuits or applications. The multiMATIC 700 would manage the entire system, including the heat pump, boiler, auxiliary heater, heat exchanger, and DHW production, to achieve optimal performance.
The multiMATIC 700 is consistently mentioned as the system controller, indicating its central role in managing these diverse heating and hot water systems. Its function would involve:
Function Description: The multiMATIC 700 is a sophisticated system controller designed to optimize the operation of Vaillant heating and hot water systems. It integrates various heat sources, such as boilers and heat pumps, along with domestic hot water (DHW) production and multiple heating circuits. Its primary function is to ensure efficient and comfortable heating and hot water supply by intelligently managing the different components of the system. It can adapt to various system configurations, from simple boiler-only setups to complex hybrid systems with multiple zones and external heat exchangers.
Usage Features: The multiMATIC 700 likely offers a user-friendly interface for setting desired temperatures, programming heating schedules, and monitoring system performance. It would allow users to select different operating modes (e.g., alternative or parallel operation in hybrid systems), prioritize heat sources (e.g., heat pump first, then boiler), and adjust settings for individual heating zones. Advanced features might include weather compensation, which adjusts the heating output based on outdoor temperature, and smart home integration for remote control and monitoring. The controller's ability to manage DHW regulation, whether by the boiler, heat pump, or both, provides flexibility in meeting hot water demands.
Maintenance Features: While the document doesn't explicitly detail maintenance features, a system controller like the multiMATIC 700 would typically include diagnostic capabilities to identify system faults or inefficiencies. It might display error codes, provide information on component status, and log operational data, which can be valuable for technicians during servicing. The controller could also facilitate maintenance tasks by allowing service personnel to access specific system parameters, perform test runs, or reset components. Its role in optimizing system operation indirectly contributes to reduced wear and tear on components, potentially extending their lifespan and minimizing the need for frequent maintenance. The integration with various sensors (e.g., temperature sensors, flow sensors) allows for continuous monitoring of system health.
In summary, the document provides a high-level overview of different system configurations and the central role of the multiMATIC 700 controller in managing them. It highlights the controller's adaptability to various heat sources and system complexities, emphasizing its function in optimizing heating and hot water production.
| Control Type | Touchscreen |
|---|---|
| Communication | eBUS |
| Mounting | Wall-mounted |
| Protection Class | IP20 |
| Radio Frequency | 868 MHz |
| Smart Home Compatibility | Yes |
| Compatibility | Vaillant heating systems |
| Languages | Multiple languages |
| Product Type | Heating controller |
| Type | System controller |
| Connectivity | WiFi |
| Control Options | App, manual |
| App Compatibility | multiMATIC App |
| Power Supply | eBUS |
| Sensors | Temperature sensors |
| Operating Voltage | 24 V |








