Honeywell L91D1015 Proportional Pressuretrol Controller 0-15 PSI

The Honeywell L91D1015 is a proportional pressuretrol controller designed for precise steam pressure control in commercial and industrial boiler systems. This controller operates within a 0-15 PSI pressure range and features adjustable proportional band settings from 2-135 degrees for fine-tuned modulation control.

Key Features:

• Proportional control for smooth, gradual pressure regulation
• Operating pressure range: 0-15 PSI
• Adjustable proportional band: 2-135 degrees
• Manual reset functionality for enhanced safety
• Durable construction suitable for demanding boiler applications
• Compatible with Honeywell burner controls for integrated system operation

The L91D1015 pressuretrol provides proportional modulation control, which varies the firing rate based on steam demand rather than simple on/off cycling. This results in more stable pressure control, improved fuel efficiency, and reduced thermal stress on boiler components. Ideal for applications requiring precise steam pressure management in heating systems, process steam, and industrial facilities.