Description
SCHWANK JS-0575-ZB Air Proving Switch Overview
The SCHWANK JS-0575-ZB is an air proving switch designed for use with SCHWANK radiant heating systems. Set at a .90″ W.C. (inches water column) differential pressure setpoint, this switch verifies that adequate combustion air or flue gas flow is present before allowing burner operation — a critical safety interlock in gas-fired infrared and radiant tube heater applications.
Key Features
- Factory-set trip point at .90″ W.C. differential pressure
- Confirms proper airflow before and during burner operation
- Designed as a direct OEM replacement for compatible SCHWANK radiant heating equipment
- Serves as a safety interlock to prevent operation under inadequate airflow conditions
- Compact, reliable switch construction for long service life
Application
Air proving switches are essential safety devices in gas-fired radiant and infrared heating systems. The JS-0575-ZB monitors differential air pressure across the combustion air blower or heat exchanger. If airflow drops below the .90″ W.C. threshold — due to a blocked flue, failed inducer, or restricted air inlet — the switch opens the control circuit, shutting down the burner and preventing unsafe operation.
Why Choose the SCHWANK JS-0575-ZB
- OEM-specified component engineered for SCHWANK radiant heater compatibility
- Precise .90″ W.C. setpoint for reliable, repeatable safety performance
- Helps maintain system compliance with combustion safety requirements
- Simplifies service and replacement with an exact-match part
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