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This HVAC rocker switch is designed to operate within the standard voltage ratings of the compatible Marley heater families
ensuring the system operates within its original UL-certified safety parameters
Its direct-acting design eliminates the guesswork in troubleshooting
75" WC for this application
the set point is fixed to ensure consistent safety performance as per OEM specifications
Reznor 176680 Gas Valve R-410A This HVAC rocker switch isThe Reznor 176680 is a standard opening natural gas valve designed for precision fuel regulation in heavy duty unit heaters and industrial furnaces. This 24V gas valve operates with a fixed setting of 3. 5" WC (Water Column) to ensure optimal manifold pressure and consistent burner performance. As a direct OEM replacement part, it is the primary successor to the obsolete Honeywell VR8204M1901, maintaining the exact 1 2" x 1 2" NPT connection specs