SKU: 1234775086
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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
this relief valve must be installed in a vertical
Key Benefits Precise OEM Fit: Specifically engineered for Lochinvar AWN series and select A
failing to start under load
allowing for a faster boiler repair without disturbing the system piping
With its NEMA 2 (IP54) rated housing and manual override crank
Viessmann 7839705 Radial Fan 321894-709 this relief valve must beThe 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