SCHWANK JS-0577-UW Blocked Flue Switch 1.33″ W.C.

SCHWANK JS-0577-UW Blocked Flue Switch Overview

The SCHWANK JS-0577-UW is a factory-specified blocked flue switch designed for use with SCHWANK radiant heating systems. Rated at 1.33″ W.C. (water column), this pressure-sensing safety switch monitors flue gas pressure to detect blocked or restricted venting conditions. When a blockage is detected, the switch interrupts the burner control circuit, shutting down the heater to prevent the buildup of combustion gases and protect both equipment and occupants.

Key Features

• Pressure rating: 1.33″ W.C. (water column)
• Designed specifically for SCHWANK radiant heating systems
• Monitors flue gas pressure to detect blocked or restricted venting
• Interrupts burner control circuit upon detection of a blocked flue condition
• Helps prevent hazardous combustion gas buildup
• Direct OEM replacement part for compatible SCHWANK heater models
• Supports safe, reliable heater operation

Application

The JS-0577-UW is an essential safety component for SCHWANK radiant heaters. It is engineered to provide reliable flue blockage detection, ensuring the heating system shuts down safely in the event of a venting obstruction. This switch is a direct OEM replacement, making it the ideal choice for service technicians and facility maintenance professionals working on SCHWANK radiant heating equipment.

Why Choose OEM SCHWANK Parts?

Using genuine SCHWANK replacement parts ensures proper fit, function, and compatibility with your existing equipment. OEM components maintain the integrity of your heating system’s safety controls and help preserve manufacturer warranties.