Honeywell Thermal Solutions FSG L404V1087 Pressure and Limit Controller

The Honeywell FSG L404V1087 Pressure and Limit Controller delivers reliable safety and precise control for oil burner systems. Featuring an adjustable subtractive differential and a diaphragm-based operator, it monitors 10–150 PSI with a 10–20 PSI differential for consistent cut-in and cut-out.

Built for durability and industry approvals, this controller uses 1/4 inch female thread connections and offers surface mounting options. It is UL and CSA approved and designed for operation in oil burner applications from -35 to 150 F. The clear plastic cover and gray enamel finish give a compact, unobtrusive look on any burner assembly. The unit supports auto recycle operation and makes R-W on pressure rise, with SPST 2-circuit contacts suitable for a range of electrical loads.

• Type: Adjustable Subtractive Differential
• Operator: Diaphragm
• Operating pressure: 10–150 PSI
• Differential range: 10–20 PSI
• Application: Oil Burner System
• Contact configuration: SPST, 2 Circuit
• Electrical ratings: 120 VAC 8 A full load; 240 VAC 5.1 A full load
• Connections: 1/4 in. Female Threaded
• Mounting: 1/4 in. Female Threaded or Surface Mount
• Operating temperature: -35 to 150 F
• Approvals: UL, CSA
• Finish & cover: Gray enamel finish with Clear Plastic cover