R7910A1027 | Honeywell Hydronic Boiler Controller With Flame Supervision

Honeywell · PLCs & Industrial Controllers

Description  The Honeywell R7910A1027 is a hydronic controller designed to manage boiler operation with integrated flame supervision and system safety monitoring. It operates on a 120 VAC supply and supports coordinated control of ignition, pumps, fans, and boiler limits.     Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category HVAC Controls Part Number R7910A1027 Subcategory Hydronic Controllers Controller Type Hydronic boiler controller Supply Voltage 120 VAC Supply Frequency 50–60 Hz Control Method PID load control Flame Sensing UV sensor or flame rod Ignition Control Internal or external spark generator Inputs Digital inputs, analog NTC sensor inputs Outputs Digital outputs, analog outputs Pump Control Circulation pump control Fan Control Yes Boiler Control Functions Heat control, boiler enable, limit management Protection Functions Frost protection, slow start, anti-condensate Temperature Limits Boiler ΔT, stack limit, boiler limit, DHW limit, outlet T-rise Status Indication Power, flame, alarm LEDs (3 total) Diagnostics 15 alert codes, 15 fault history records Operating Application Hydronic boiler systems Weight 2.1 lbs   Information About R7910A1027 The R7910A1027 is part of Honeywell’s hydronic control portfolio developed for integrated boiler management in heating systems. It combines heat demand control, flame supervision, circulation management, and ignition sequencing within a single controller. The unit supports both UV and flame rod sensing and provides detailed alert and fault histories with equipment status captured at the time of events. Advanced control algorithms prioritize system functions while maintaining operational safety and efficiency. Key Features Integrated Hydronic Boiler Control: Manages heat demand, boiler enable, circulation pumps, fans, and ignition in a unified control platform. Advanced PID Load Control: Uses PID algorithms to regulate boiler output and maintain stable system performance. Comprehensive Safety Supervision: Supports UV or flame rod sensing with continuous flame monitoring and alarm indication. Extensive Protection Functions: Includes frost protection, slow start, anti-condensate control, and multiple temperature limit safeguards. Flexible Sensor And I O Support: Accepts analog NTC temperature sensors along with digital and analog inputs and outputs. Detailed Diagnostics And History: Stores up to 15 alert codes and 15 fault history records with system status snapshots. Clear Status Indication: Three onboard LEDs provide immediate visibility of power, flame, and alarm conditions. The R7910A1027 delivers the reliability and precision required for safe and efficient hydronic boiler control in heating systems.

Brand: Honeywell · Category: PLCs & Industrial Controllers

Key features

• Integrated Hydronic Boiler Control: Manages heat demand, boiler enable, circulation pumps, fans, and ignition in a unified control platform.
• Advanced PID Load Control: Uses PID algorithms to regulate boiler output and maintain stable system performance.
• Comprehensive Safety Supervision: Supports UV or flame rod sensing with continuous flame monitoring and alarm indication.
• Extensive Protection Functions: Includes frost protection, slow start, anti-condensate control, and multiple temperature limit safeguards.
• Flexible Sensor And I O Support: Accepts analog NTC temperature sensors along with digital and analog inputs and outputs.
• Detailed Diagnostics And History: Stores up to 15 alert codes and 15 fault history records with system status snapshots.
• Clear Status Indication: Three onboard LEDs provide immediate visibility of power, flame, and alarm conditions.

Specifications

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