or 90 minutes to match specific regional climate demands

The 6-16" WC spring range (dark green spring) provides the flexibility needed for standard low-pressure requirements

Key Benefits: Thermal Protection: Guards the collector box against heat damage and maintains steady internal temperatures

which is critical for maximizing SEER ratings and managing sensible heat ratios

This control is fully UL 353 recognized and meets CSD-1 requirements for commercial boiler installations

Utica-Dunkirk 28687 Flame Sensor 322055-301 or 90 minutes to matchThe Utica Dunkirk 28687 Flame Sensor is a critical safety component engineered for precise flame rectification in high efficiency residential and commercial gas fired boilers and furnaces. Designed for compatibility with various Utica and Dunkirk heating systems, this OEM replacement flame sensor monitors the burner assembly's combustion process by converting AC voltage into a measurable DC microamp signal. A veteran tech knows that a reliable