Browning 1VP65X 1 3/8 Sheave 320074-702 How do I troubleshoot a

How do I troubleshoot a pressure switch open error on a Lochinvar boiler

it effectively supersedes older part number 632492

Heavy-Duty Contacts: Rated for up to 277 VAC resistive loads

Robust Build: Features a durable 25-inch lead with high-temperature insulation for use in demanding sealed combustion chambers

Browning 1VP65X 1 3/8 Sheave 320074-702 How do I troubleshoot aThe Browning 1VP65X 1 3 8 is a heavy duty, cast iron variable pitch sheave designed for precise speed modulation in industrial and HVACR drive systems. This single groove VP sheave features a 6. 50" outside diameter and is engineered for high torque applications requiring a 1 3 8" finished bore with keyway. The adjustable pitch range of 4. 9" to 6. 4" allows technicians to fine tune fan speeds and blower performance on site, ensuring optimal CFM