SCHWANK JS-0575-ZA Air Proving Switch
The SCHWANK JS-0575-ZA is a genuine OEM air proving switch designed to verify adequate combustion airflow before and during burner operation. With a calibrated set point of 1.40″ W.C. (inches water column), this switch provides a critical safety interlock — confirming that sufficient air pressure is present and preventing ignition or continued operation if airflow falls below the required threshold.
Engineered as a direct replacement for SCHWANK radiant heating systems, the JS-0575-ZA integrates seamlessly into the burner control circuit to protect equipment and occupants from the hazards of incomplete combustion or blocked flue conditions.
Key Features
- Genuine SCHWANK OEM replacement part
- Calibrated set point: 1.40″ W.C. (inches water column)
- Monitors combustion air pressure to confirm safe burner operation
- Provides safety interlock — shuts down or prevents ignition on loss of airflow
- Direct drop-in replacement for compatible SCHWANK radiant heater models
- Supports reliable, code-compliant burner control sequences
Application
- SCHWANK infrared and radiant tube heating systems
- Commercial and industrial heating applications
- Replacement of failed or suspect air proving switches during routine maintenance
Why Air Proving Switches Matter
Air proving switches are a fundamental safety component in gas-fired heating equipment. They confirm that the combustion blower or inducer is operating correctly and that adequate airflow exists before the gas valve is permitted to open. Replacing a faulty air proving switch with the correct OEM part — such as the SCHWANK JS-0575-ZA — ensures your system meets manufacturer specifications and operates safely.
