Intermatic FM1D14-AV-U Time Switch 319848-301 and 58HDV series units

and 58HDV series units

making it suitable for any HVAC system utilizing these specific physical fittings

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Quartz Accuracy: Integrated battery backup ensures scheduled cycles continue without manual resetting after a power failure

serving as a reliable drop-in replacement for failed Honeywell VR series valves in Burnham hydronic heating systems

Intermatic FM1D14-AV-U Time Switch 319848-301 and 58HDV series unitsThe Intermatic FM1D14 AV U is a heavy duty 24 hour 7 day electronic time switch designed for versatile commercial and industrial control applications. This SPDT (Single Pole Double Throw) digital module features a wide universal voltage range of 120 277 VAC, eliminating the need for multiple SKUs and ensuring compatibility across various power systems. Engineered for high precision switching, it supports up to 14 setpoints for flexible load