The Viessmann PlusBus Surface Mounting Pre‑Plumbing Jig for Combi Boilers is a complete pre‑installation kit designed to simplify and speed up the installation of Vitodens 100‑W and Vitodens 200‑W PlusBus combi boilers. It provides all essential valves, fittings, and safety components pre‑mounted on a jig, enabling installers to complete pipework preparation before the boiler is hung—ensuring a clean, professional, and consistent installation.

This pack is suitable specifically for PlusBus-enabled combi models, providing a perfect hydraulic and gas connection interface.

• Suitable for Vitodens 100‑W & 200‑W PlusBus combi boilers.

• Pre‑assembled surface‑mounting plate to speed up installation and standardise pipework layout.

• Includes heating flow & return valves, fully compatible with PlusBus combi configurations.

• Equipped with a gas shut‑off valve (R 3/4") featuring an integral thermally activated safety shut‑off mechanism.

• Includes cold water and DHW connections (R 1/2"), required for combi boiler operation.

• Comes with air vent valve and pressure gauge, aiding safe commissioning and ongoing system monitoring.

• Designed for surface mounting, ideal for solid‑wall or open plant‑room installations.

• Gas shut‑off valve: R 3/4" (male thread)
• Heating flow/return: R 3/4" (male thread)
• Cold water/DHW: R 1/2" (male thread)

• Pre‑plumbing jig (surface mounting)
• Heating flow & return valves
• Gas isolation valve with thermal safety shut‑off
• Cold water & DHW connections
• Pressure gauge
• Air vent valve
• Fixings and mounting hardware

Use Cases

• Fast installation of Vitodens 100/200 PlusBus combi boilers
• Ensuring consistent pipe layouts across multiple installs
• Ideal for installers wanting to finalise pipework before fitting the boiler
• Perfect for plant rooms and domestic spaces needing a tidy, professional finish