Viessmann Solar-Divicon DN25B Installation Instructions

Viessmann Solar-Divicon DN25B Accessory manual cover

Pages 26

Year 2015

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Viessmann Solar-Divicon DN25B Accessory Specification

The Viessmann Solar-Divicon DN25B Accessory is a sophisticated component designed for optimizing solar thermal systems. This unit integrates seamlessly into solar heating setups, enhancing the efficiency and reliability of solar energy utilization. It features a robust construction tailored to withstand the demands of solar thermal applications. The DN25B model is engineered for systems requiring high flow rates, boasting a nominal diameter of 25 mm which ensures minimal pressure drop across the unit. It is equipped with a high-efficiency solar pump which is essential for maintaining optimal fluid circulation, thereby maximizing heat transfer from the solar collectors to the storage tank. The unit includes a reliable fill and drain valve system for easy maintenance and serviceability. An integrated flow meter allows for precise monitoring of the flow rate, contributing to effective system diagnostics and performance optimization. The Solar-Divicon DN25B also comes with a built-in safety group featuring a pressure relief valve, ensuring system safety by preventing overpressure conditions. This accessory is compatible with various Viessmann solar control systems, offering flexibility and ease of integration. The design emphasizes user-friendly installation and operation, characterized by intuitive interfaces and clear labeling. The Viessmann Solar-Divicon DN25B Accessory is a testament to Viessmann's commitment to high-quality engineering, providing a durable and efficient solution to enhance the performance of solar thermal installations.

Viessmann Solar-Divicon DN25B Accessory F.A.Q.

How do I install the Viessmann Solar-Divicon DN25B accessory?

To install the Viessmann Solar-Divicon DN25B, first ensure that all system components are compatible. Mount the unit securely on a flat surface, connect the solar circuit, and then connect the heat exchanger circuit. Follow the manufacturer's manual for specific installation steps and safety precautions.

What is the correct way to perform a system pressure check on the Solar-Divicon DN25B?

To check the system pressure, attach a pressure gauge to the designated valve on the Solar-Divicon DN25B. Open the valve to read the pressure, ensuring it falls within the specified range in the user manual. Adjust the pressure as necessary by adding or releasing fluid.

How often should I perform maintenance on the Solar-Divicon DN25B?

Regular maintenance should be performed annually. This includes checking for leaks, inspecting seals and connections, testing system pressure, and cleaning any filters. Follow the detailed maintenance schedule provided in the manual for optimal performance.

What should I do if the Solar-Divicon DN25B is making unusual noises?

Unusual noises could be due to air trapped in the system or a failing component. First, bleed the system to remove any air. If the noise persists, inspect the pump and valves for wear or damage and replace if necessary.

How can I troubleshoot a temperature imbalance in the Solar-Divicon DN25B system?

Check the temperature settings and ensure they are correctly configured. Inspect the flow rate and adjust if necessary. Verify that the temperature sensors are functioning correctly and replace them if defective.

What fluid should be used in the Solar-Divicon DN25B system?

Use a solar-specific heat transfer fluid as recommended by Viessmann. This fluid is typically a mixture of water and glycol, designed for high efficiency and longevity. Always check the manual for the recommended type and concentration.

Can I integrate the Solar-Divicon DN25B with other Viessmann solar components?

Yes, the Solar-Divicon DN25B can be integrated with other Viessmann solar components. Ensure compatibility by consulting the product specifications and installation guides provided by Viessmann.

What are the signs of a leak in the Solar-Divicon DN25B system?

Signs of a leak include drops in system pressure, visible fluid around connections or components, and reduced system efficiency. Regularly inspect the system for these signs and address any issues immediately.

How do I replace a faulty pump in the Solar-Divicon DN25B?

First, isolate the pump by shutting off the relevant valves. Safely drain the system if necessary. Disconnect the electrical connections, remove the faulty pump, and install a new one. Reconnect the electrical connections and test the system for proper operation.

What is the recommended way to winterize the Solar-Divicon DN25B system?

To winterize the system, ensure that the heat transfer fluid has the correct antifreeze concentration for your climate. Check all insulation and weather seals, and perform a system check to ensure all components are functioning properly before the onset of cold weather.