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and 45-second furnace ignition systems
The 50VA rating is optimized for the factory control configurations of the Ultra 550 and 750 models
ensuring the diaphragm responds correctly to varying electrical signals and gas supply fluctuations
As a L225-F manual reset switch
York S1-7975-3771 Relay and 45-second furnace ignition systemsThe York S1 7975 3771 is a professional grade 24V SPDT Fan Relay designed for high cycle reliability in residential and light commercial air handlers. For technicians troubleshooting blower motor sequencing or intermittent fan failures, this component provides the specific low voltage logic required to switch high amperage loads. This Single Pole Double Throw relay is the direct OEM replacement for legacy part numbers S1 6313 2271 and 134 20103 301D,
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