Honeywell Thermal Solutions ST7800A1054 60-Second Purge Timer
The Honeywell Thermal Solutions ST7800A1054 purge timer is a control device designed to manage pre-purge timing in combustion-based HVAC equipment. It operates by initiating a 60-second purge cycle before ignition, clearing residual gases to ensure safe startup. Commonly used in boilers, furnaces, and burner management systems, it enhances operational safety and compliance.