Viessmann 7831028 Radial Fan 320734-701 Designed for the demands of

Designed for the demands of commercial HVAC environments

and high-volume conduit boxes for a complete professional installation

28 cm³ and an HST (High Starting Torque) motor configuration

Designed for a precise fit

operating within an ambient temperature range of -40°F to 175°F

Viessmann 7831028 Radial Fan 320734-701 Designed for the demands ofThe Viessmann 7831028 Radial Fan is a critical combustion air blower component designed for high efficiency boiler systems, specifically the Vitodens 200 and Vitodens 300 series. As an RLS154 radial fan, this unit is engineered to manage precise air fuel ratios required for condensing boiler modulation. This specific SKU is provided without electrics, meaning the housing and impeller assembly are intended for field integration with your existing