Mixing module Vaillant VR 71 700/2 (model 0020184847) for heating systems with three mixers

The Vaillant VR 71 700/2 mixing module is a modular hydraulic component developed for central heating systems that require three independent mixing circuits. Designed to work with Vaillant control equipment, this module regulates flow and temperature distribution between primary heat sources and secondary heating circuits, enabling stable delivery of set temperatures to radiators, underfloor heating loops or other heating zones. The unit is intended for professional installation and integration into existing or new Vaillant systems where precise mixing and zone separation are needed.

Advantages

The mixing module provides controlled temperature blending across three separate mixers, helping maintain consistent supply temperatures for multiple heating zones. Its compatibility with Vaillant controls ensures straightforward communication and coordinated operation with boilers and thermostats. The robust design supports reliable hydraulic performance and simplifies retrofit or expansion of multi-zone heating installations without the need for complex bespoke piping solutions.

Suitable for

• Multi-zone residential or commercial heating systems that require three independent mixers
• Integration with Vaillant boilers and control units
• Systems combining radiators and underfloor heating circuits
• Retrofit projects and upgrades of existing heating installations

Key specifications

• Three independent mixing circuits for separate temperature control
• Hydraulic module format suitable for integration into modular heating systems
• Designed for use with Vaillant control and boiler equipment
• Intended for professional installation and connection to primary heating loop

How to use

Install the mixing module on the return or supply manifold as specified by the system design and Vaillant installation instructions. Connect primary supply and return lines and each of the three secondary circuits following hydraulic and electrical connection diagrams provided by the manufacturer. Configure the associated Vaillant controller to set desired setpoints and mixing behaviour for each circuit. Commission the system by purging air, checking for leaks, and verifying temperature control on all connected zones.

Usage recommendations

Use this module within the specified operating parameters of the overall heating system and ensure installation is performed by qualified heating professionals. Regular maintenance of valves, actuators and control connections helps preserve accurate temperature control and hydraulic balance across the three mixers.