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the JB U1-6B is a standard HVARC component for creating reusable
product data and specifications are subject to change
Invensys/Robertshaw) depending on the production era
blocked return vents
000 PSI depending on conditions
York S1-7990-3591 Limit Switch the JB U1-6B is aFor 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
US$ 3999.50
US$ 46.99
US$ 5499.50