Description
The Honeywell RM7890A1056 is a microprocessor-based integrated burner control designed for automatically fired gas-only single burner applications. It provides reliable sequencing, flame monitoring, and system diagnostics for industrial combustion systems.
Specifications
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Model: RM7890A1056
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Series: 7800 SERIES Relay Modules
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Voltage Rating: 120 Vac (+10/-15%), 50/60 Hz (±10%)
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Power Dissipation: Max 10 W
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Connected Load: Up to 2000 VA
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Fusing Requirement: 15A max, Type SC or equivalent fast blow
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Operating Temperature: –40°C to +60°C
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Storage Temperature: –40°C to +66°C
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Humidity: 85% RH continuous, non-condensing
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Vibration Resistance: 0.5G
Features
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Automatic Burner Sequencing: Controls ignition, flame detection, and shutdown
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Flame Supervision: Compatible with multiple flame amplifier types
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Valve Proving System: Tests valve seat integrity before and/or after burner operation
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Selectable Pilot Function: Supports intermittent or interrupted pilot setup
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Run/Test Switch: Simplifies pilot configuration during commissioning
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Blinkum Fault Annunciation: LED fault code display for quick diagnostics
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System Diagnostics: Built-in self-checks and status indication
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Modular Expansion: Compatible with S7800A display, purge timers, annunciators, and Modbus modules
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Safety Compliance: Meets industrial safety standards for gas burner control
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