Danfoss 193B-1704 VTC511 Thermostat 140°F Replacement Element

The Danfoss 193B-1704 is a replacement thermostat element designed for VTC511 series 3-way thermic valves. This self-contained thermostatic element is factory-calibrated to maintain a precise 140°F (60°C) operating temperature for boiler return protection and hydronic heating system applications.

Key Features:

• Pre-set 140°F (60°C) temperature rating for consistent thermal regulation
• Self-contained thermostatic element requires no field adjustment
• Designed for use with VTC511 series valve bodies (sold separately)
• Protects non-condensing boilers from thermal shock and low return temperatures
• Interchangeable with other VTC511 thermostat elements for different temperature requirements
• Suitable for boiler protection, solid fuel systems, and solar heating applications

This thermostat element works by sensing water temperature and modulating the valve position to maintain steady return temperatures, which increases boiler efficiency and longevity. The VTC511 system is commonly used in hydronic heating systems, radiant floor heating, snow melt systems, and accumulation tank loading applications. Note: This is the thermostat element only; a compatible VTC511 valve body must be ordered separately to create a complete functional valve assembly.