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Housing for Outside Air Temperature Sensing Element
though hardwiring to 24V AC is recommended when possible
5 to 3 inches in size
featuring a hex-rod drive for smoother engagement compared to standard smooth-rod alternatives
York S1-1PS0309 Pressure Switch Els PW 17895 Housing for Outside Air TemperatureThe York S1 1PS0309 Pressure Switch is an OEM specified safety component engineered for high altitude gas furnace installations. This SPST pressure switch is calibrated to a fixed setpoint of 0. 90" WC (water column), ensuring the inducer motor maintains the critical vacuum thresholds necessary for safe flue gas venting in low density air environments. Designed for precise atmospheric monitoring, this switch replaces standard units to prevent nuisance
