York S1-063-90038-022 Plate 321894-706 The unit is protected by

The unit is protected by a NEMA 4X enclosure

The Weil-McLain 340-004-605 Observation Port is a critical boiler component designed for high-temperature service and combustion chamber monitoring

Key Benefits Precise Pressure Calibration: Factory set at 650/450 PSI to ensure accurate cut-out and cut-in response without manual adjustment

It serves as a direct replacement for Danfoss 023U7251

Industrial-Grade Build: Constructed to withstand the thermal and physical stresses typical of furnace and chiller environments

York S1-063-90038-022 Plate 321894-706 The unit is protected byThe York S1 063 90038 022 Plate is a critical combustion component designed for high precision airflow management within specific York HVAC systems and rooftop units. Featuring an exact 2. 250 inch orifice, this inductor ventor plate is engineered to regulate the specific volume of air entering the combustion chamber, ensuring optimal static pressure and efficient flue gas evacuation. For field technicians, this part is a direct OEM replacement