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professional technicians must note that two packing spacers are required per valve body to meet original equipment specifications
blocked return vents
product data and specifications are subject to change
000 PSI depending on conditions
Invensys/Robertshaw) depending on the production era
York S1-7990-3591 Limit Switch professional technicians must note thatFor technicians servicing York, Coleman, or Luxaire equipment, the York S1 7990 3591 is a critical OEM furnace limit switch designed for precision thermal monitoring. This auto reset limit switch is engineered with a snap action contact system that opens at 180F and automatically closes at 150F, ensuring the HVAC blower motor and burners operate within safe operational parameters. As a genuine Source1 repair part, it offers exact physical and
