Viessmann 7828795 Flow Switch for Vitodens Boilers - VK332M

The Viessmann 7828795 is a replacement flow switch (model VK332M) designed specifically for Vitodens 200-W series residential wall-mounted gas-fired condensing boilers. This OEM component is compatible with Vitodens B2HA 80/88/100 and WB2B 80/105 series models.

Key Features:

• OEM Viessmann replacement part ensuring exact fit and reliable performance
• VK332M paddle-type flow switch with reed contact technology
• Monitors water flow in both domestic hot water and central heating systems
• Sends signal to PCB when pump is activated, allowing ignition sequence to progress
• Features potential-free contact output for system integration
• Maximum medium temperature rating of 100°C (212°F)
• PN 10 pressure rating for safe operation in residential systems
• G3/4 union nut connection for direct pipeline installation

Installation Notes:

Professional installation by a licensed heating contractor is required. When ordering replacement parts, verify compatibility by providing your boiler's 16-digit serial number or 12-digit ASME/NB serial number to the manufacturer. The flow switch uses a paddle system with a permanent magnet that actuates a reed contact when flow is detected, providing critical feedback to the boiler control board.

This genuine Viessmann component ensures optimal performance and longevity for your condensing boiler system.