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Safety Agency Compliance: CSA Listed and engineered to maintain the original safety ratings of the HVAC equipment
Beyond switch failure
allowing for a faster boiler repair without disturbing the system piping
the switch triggers an immediate cutoff
Operating on a 120-230Vac single-phase range with a 1/2" x 4 1/2" shaft
Viessmann 7839705 Radial Fan 321894-709 Safety Agency Compliance: CSA ListedThe Viessmann 7839705 Radial Fan is a critical combustion blower designed specifically for high efficiency gas condensing boilers. This RG148E 120V replacement fan manages the precise air fuel ratio required for proper modulation and optimal burner performance. As a direct OEM component, it ensures seamless integration with the boilers control logic, preventing ignition failures or flame sensing issues common with non spec blowers. The Viessmann RG148
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