White-Rodgers 3L09-17 Heating Limit ControlThe White Rodgers 3L09 17 Heating Limit Control is a reliable limit control for heating control panels, featuring a Therm O Disc Type 36T sensor and a board mount design for durable, easy installation. Built around a 1 2 inch bimetal disc and a compact 3. 12 inch body, this control delivers precise temperature protection across residential and commercial heating systems while handling multiple voltage scenarios. Sensor & style: Therm O Disc Type 36T,

plus a differential of 1 to 150°F

Pleated media design for high surface area and extended life

Operating range: -40 to 136 °F (-40 to 58 °C)

Key features include robust 4-bolt flanged connections for secure installation and easy integration with existing piping

Model compatibility: Erie Controls 436-220

Dimensions: 1-5/32 inch diameter x 2 inch height for compact installation

enclosure rating NEMA 1

automatic shut-off for gas-fired appliances

making it suitable for safety-critical gas equipment

Flange-mount installation with clockwise rotation

a reliable single-pressure

Designed for 24V AC systems