After-heating module/instantaneous water heater/emergency heating 1 1/2" MDC 400

After-heating module/instantaneous water heater/emergency heating 1 1/2" MDC 400 – Reliable addition to your heating system

Product overview

This innovative reheating module offers a flexible solution for water heating in central heating systems. It is specifically designed for use in combination with photovoltaic systems, heat pumps, boilers, and other heating systems. The device supports operation by converting excess electricity into heat, thus making a sustainable contribution to energy optimization.

The sophisticated design combines technical efficiency with robust materials. This makes the reheating module a reliable solution that performs impressively even under exceptional heat requirements. It is ideally suited for flexible use in a variety of heating systems.

Applications and advantages

The auxiliary heating module has a wide range of applications. It uses excess electricity, such as that generated by a photovoltaic system, to support the heating system. This ensures efficient use of available energy. The device also serves as an emergency solution if the main boiler, condensing boiler, or heat pump fails.

Another practical application is heating weekend or holiday homes even during the colder months. The module can also be used to charge a heating buffer tank, ensuring continuous, on-demand hot water production.

Technical features at a glance

The instantaneous water heater for central heating systems has precise connection options: The flow and return connection measures 1 1/4" IG, while the connection for the heating element is set to 1 1/2" IG. It reaches a maximum permissible operating temperature of 90 °C and operates safely up to an operating pressure of 10 bar.

The selection of suitable heating elements—available in 3.0 kW, 4.5 kW, or 6.0 kW at 400 V—offers flexibility to customize the device to individual requirements. The module's inner diameter is 60 mm, while its compact dimensions of 161 mm in diameter and 600 mm in length allow for easy integration into existing systems.

Robust construction and high-quality materials

The module's housing is made of raw steel on the inside and powder-coated on the outside, ensuring high durability and corrosion resistance. The 50 mm thick polyurethane foam insulation also contributes to efficient heat storage. The sturdy plastic outer shell in a subtle gray underscores the robust construction, which delivers reliable performance even in continuous operation.

This robust design not only guarantees reliable function in daily operation, but also minimizes maintenance requirements and extends the service life of the heating support system. This means you can rely on a product that will always perform its tasks in technically demanding environments.

Technical data

• Connection flow and return: 1 1/4" IG
• Connection for heating element: 1 1/2" IG
• Max. permissible operating temperature: 90 °C
• Max.permissible operating pressure: 10 bar
• Housing material: raw steel inside, powder-coated outside
• Housing insulation: 50 mm polyurethane foam
• Outer shell: plastic, color: gray
• Minimum flow: 3.0 kW/171 l/h
• Minimum flow: 4.5 kW/257 l/h
• Minimum flow: 6.0 kW/343 l/h
• Suitable heating elements MDC 400 module: 3.0 kW | 4.5 kW | 6.0 kW (400V)
• Inner diameter of MDC module: 60 mm
• Dimensions MDC 400 (diameter x length): 161 mm x 600 mm

Scope of delivery

• MDC 400 module
• Assembly and operating instructions