Description
The SCHWANK JS-0577-XZ is an OEM replacement blocked flue switch designed for use with SCHWANK radiant heating systems. This pressure-actuated safety switch monitors flue gas exhaust conditions and is set to trip at 1.25″ W.C. (inches water column), providing reliable protection against blocked or restricted flue conditions that could lead to unsafe heater operation.
How It Works
The blocked flue switch continuously monitors the pressure differential in the flue exhaust path. If a blockage, restriction, or abnormal back-pressure condition is detected at or above the 1.25″ W.C. setpoint, the switch opens the control circuit and shuts down the heater — preventing the risk of combustion gases spilling into the occupied space.
Key Features
- OEM SCHWANK replacement part — direct fit for compatible SCHWANK radiant heater models
- 1.25″ W.C. pressure setpoint for precise flue blockage detection
- Pressure-actuated switch design for fast, reliable response
- Protects against flue blockage, restriction, and back-pressure conditions
- Integral to the heater’s safety control circuit
- Helps maintain safe and code-compliant heater operation
Application
- Compatible with SCHWANK radiant heating systems requiring a blocked flue safety switch
- Suitable for commercial and industrial radiant heating applications
- Ideal for replacement of worn, failed, or suspect flue pressure switches during routine maintenance or service calls
Why Choose OEM Parts?
Using genuine SCHWANK replacement components ensures proper fit, calibrated setpoints, and continued warranty compliance. The JS-0577-XZ is engineered to the exact specifications of the original equipment, giving technicians confidence in the safety and reliability of every installation.
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