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remove the fast-fill lever cap and loosen the lock nut
making it ideal for high-output commercial and industrial hydronic heating systems
This unit is specifically engineered with zero-crossing technology to handle the high inrush currents typical of LED lighting scheduled timers
allowing for full internal restoration without removing the valve body from the piping
and heat pump systems requiring a 24V control signal
Supco F21413A14025C Fan Control 319848-301 remove the fast-fill lever capThe Supco F21413A14025C is a high reliability 7 inch fan control engineered for precision temperature regulation in forced air systems. Serving as the direct replacement for F563, this control manages the blower motor cycle based on sensed plenum temperatures to prevent cold drafts and optimize furnace efficiency. It features an adjustable 60 140F temperature range, allowing technicians to fine tune the fan on and fan off setpoints according to
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