Description
The Honeywell ST7800C1011 is a 20-second purge timer engineered for use with the RM7838C Series burner management relay modules. Designed to enforce a precise pre-purge timing cycle, this plug-in timer module ensures that combustion chambers are properly cleared of residual gases before ignition is initiated — a critical safety step in commercial and industrial burner control applications.
Key Features
- 20-second pre-purge timing cycle for safe combustion sequencing
- Plug-in module design for quick, tool-free installation and replacement
- Compatible with the Honeywell RM7838C Series relay modules
- Enforces mandatory pre-purge period to clear combustion chamber before ignition
- Supports compliance with burner safety and flame safeguard standards
- Compact, durable construction suited for demanding commercial and industrial environments
Application
The ST7800C1011 purge timer is a plug-in accessory for the Honeywell RM7838C Series programmable relay modules, which are used in commercial and industrial burner management systems. The purge timer establishes the required pre-purge interval, helping to prevent dangerous accumulations of unburned fuel in the combustion chamber prior to ignition. It is an essential component for maintaining safe and code-compliant burner operation.
Specifications
- SKU: ST7800C1011
- Brand: Honeywell
- Purge Time: 20 Seconds
- Compatible Series: RM7838C
- Module Type: Plug-in Purge Timer







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