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Broad Application Range: Rated for a temperature spectrum of -20 to +50 degrees
625" width guarantee compatibility without shroud interference
Ensure the external oil-indicating filter is checked regularly to prevent contamination of the controller's internal orifices
Common Questions: Is this coil compatible with normally open (N/O) valves
Resideo FV183 Air Vent 321042-401 Broad Application Range: Rated forThe Resideo FV183 GoldTop Air Vent is a professional grade solution for managing air accumulation in hydronic heating and cooling systems. Engineered with a 3 4" MNPT connection, this automatic air vent replaces the legacy 0590723 model, ensuring a seamless drop in fit for existing piping. Featuring a patented fulcrum design, the GoldTop air vent provides a venting rate three to four times faster than standard valves, making it ideal for systems with