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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
25" WC range is used when pressure is expected to flow only in one direction
For maritime or corrosive applications
a nickel-plated stem
Code Compliance: Meets rigorous industry standards as a UL
The primary 120Vac side typically uses White (Neutral) and Black (Hot)
Johnson Controls R-317-1 Controller Freon 25" WC range is usedThe Johnson Controls R 317 1 Air Flow Controller is a precision proportional direct acting pneumatic controller designed for low pressure sensing in commercial HVAC systems. Engineered for high accuracy air velocity control, this unit operates within a sensing range of . 05" WC to 1" WC, making it a reliable component for static pressure control and VAV system maintenance. The R 317 1 features a 25 psig maximum supply pressure and delivers a 45 SCIM