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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Smith ProLine series equipment
Common Questions Is the Robertshaw 10-166 compatible with natural gas systems
While this is a standard LP orifice
Rated for York 180-210F Limit Switch standards
it provides the precise calibration required for veteran technicians to restore factory-spec safety protocols in residential and light industrial furnaces
York 3400-3151 Limit Switch Smith ProLine series equipmentThe York S1 3400 3151 Limit Switch is a critical safety component designed for high limit thermal protection in residential and commercial HVAC systems. This OEM replacement part is engineered to monitor furnace plenum temperatures, specifically calibrated with an open point of 175F and a close point of 125F. As an automatic reset limit switch, it eliminates the need for manual intervention once temperatures return to safe operating parameters.