Product detailed description
Buderus Set for WB 1 VO
Buderus is part of the Bosch Thermotechnik group and has been a synonym for reliable and energy-efficient heating and hot water technology for decades. German manufacturing quality, an emphasis on precise connection dimensions, and long-term availability of spare parts and accessories are among the main reasons why Buderus boilers and system components are a popular choice among installers and investors throughout Europe.
The Set for WB 1 VO is genuine Buderus accessory for hydraulically separating the primary circuit of a wall-mounted condensing boiler (WB series) from secondary heating circuits. Wall-mounted boilers have a limited built-in circulation pump output and limited tolerance for the higher hydraulic resistance of a larger system — a hydraulic separator or heat exchanger, together with its own pump group, therefore separates the boiler's flow from the flow in the house's distribution system and enables reliable operation even with a larger or more complex system.
This variant includes a DN25 hydraulic separator and one HS25/6 pump group with the MM100 control module, which allows independent temperature control in the heating circuit according to a weather-compensated curve.
What's included in the set
- DNA HYDRAULIC SEPARATOR TRANSVERSE DN25 (8718599384), 1 pc
- DNA HS25/6 INSIDE WITH MM100 (7736601162), 1 pc
- Hydraulic separator sensor 6.0 10K (7735502296), 1 pc
- WMS 1 quick-mount group bracket (67900470), 1 pc
Purpose and number of heating circuits
Based on the composition of its components, the set is designed for connecting one independently controlled heating circuit (1 VO). The pump group (or the primary and mixing group) ensures circulation and temperature control in the heating circuit, the hydraulic separator/heat exchanger temperature sensor provides feedback to the boiler control, and the quick-mount group bracket (WMS) is used to attach the entire assembly to the wall or the piping system.
Installation
Connecting the hydraulic separator, pump groups, and sensors is a professional installation task that significantly affects the behavior of the entire heating system. Installation, electrical connection of sensors, and setting of control parameters must therefore be carried out by a certified installer or an authorized Buderus service technician, according to the project and installation manual.
Frequently Asked Questions
Why do I need a hydraulic separator or connecting set if I have a wall-mounted boiler?
Wall-mounted condensing boilers have limited flow capacity and pressure reserve of the circulation pump. If the heating system is larger, has more circuits, or has a different hydraulic resistance, it is necessary to separate the boiler's primary circuit from the secondary heating circuits — this is exactly what this set is for.
Does the set include the boiler itself?
No, the set is an accessory intended for hydraulic connection and separation of circuits; the Buderus WB series boiler must be ordered separately.
What is the difference between sets for 1 and 2 heating circuits?
The set for 1 VO includes one pump group and is intended for cases where separating one secondary circuit from the boiler is sufficient. The set for 2 VO includes two pump groups (primary and mixing) and the corresponding double bracket, allowing two separate heating circuits to be connected and independently controlled.
What is the difference between the S variant and the WT variant?
The S variant uses a classic flow-through DN25 hydraulic separator for hydraulic separation. The WT variant instead includes a plate heat exchanger (PWT 28), which also allows the medium in the primary and secondary circuits to be separated, for example in cases of different water quality requirements or greater distribution distances.
Who should install and connect the set?
Installation, sensor connection, and control settings must be carried out by a certified installer or an authorized Buderus service technician, in accordance with the project documentation and installation manual.
Does the set include a control system or control module?
The set includes a hydraulic separator/heat exchanger temperature sensor, which connects to the boiler's control system or a higher-level control unit. The controller itself (e.g. Logamatic) is included with the boiler or purchased separately depending on the specific configuration.
Warranty and service
The set's components are covered by the standard warranty period provided by the manufacturer Bosch Thermotechnik GmbH / Buderus and the seller in accordance with the applicable terms and conditions. To claim the full warranty on the boiler and accessories, we recommend having the installation and commissioning carried out by an authorized Buderus service partner and keeping the device's service book. If you have any questions about choosing the right set for your specific boiler type and output, please do not hesitate to contact us — we will be happy to help.
