Overview
The Honeywell RM7823A2016 is a microprocessor-based flame detector relay module from the 7800 Series. It’s designed for monitoring burner flame signals and providing safety interlocks for commercial and industrial combustion systems. With built-in diagnostics, LED indicators, and dual relay outputs, this control ensures reliable and safe burner operation.
Key Features & Benefits
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Dual SPDT relay outputs for flame or no-flame conditions
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LED indicators for power, flame signal, and alarm status
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Built-in shutter drive output for self-checking flame scanners
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Nonvolatile memory for storing lockout and fault history
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Modular plug-in design for easy service and quick replacement
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Compatible with all 7800 Series subbases and amplifiers
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Designed for dependable flame supervision and relay switching
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Compact and durable housing ideal for control panel installations
Specifications
| Application | Flame Switch |
| Dimensions (in.) | 5 in. wide x 5 in. high x 5 1/4 in. deep with Q7800A Subbase x 6 3/32 in. deep with Q7800B Subbase |
| Dimensions (mm) | 127 mm wide x 127 mm high x 133 mm deep with Q7800A Subbase x 155 mm deep with Q7800B Subbase |
| Weight (lb) | 1 lb 13 oz |
| Weight (kg) | 0.8 kg |
| Comments | two SPDT outputs |
| Frequency | 50 Hz; 60 Hz (±10%) |
| Approvals, Underwriters Laboratories Inc. | Component Recognized, File No. MP268; Guide No. MCCZ. |
| Approvals, Canadian Standards Association | Certified, File No. LR95329-3. |
| Voltage | 120 Vac (+10, -15%) |
| Shipping and Storage Temperature Range (F) | -40 F to +140 F |
| Shipping and Storage Temperature Range (C) | -40 C to +60 C |
| Approvals, Federal Communications Commission | FCC Part 15, Class B, Emissions. |
| Required Components | Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. |
| Vibration | 0.5 G environment |
| Approvals, Swiss RE | Acceptable |
| Approvals, Factory Mutual | Report No. OX4A5.AF. |
Applications
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Industrial and commercial burner systems requiring flame relay output
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Flame supervision in multi-burner installations
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Integration with flame amplifiers and sensors for UV, IR, or rectification detection
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Safety interlock relay control for flame safeguard systems
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Replacement or retrofit for RM7823A-series modules in existing Honeywell panels
Installation & Use
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Mount directly onto a compatible 7800 Series subbase
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Connect approved flame amplifier and sensor inputs
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Use LED indicators to verify operational and flame status during setup
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Connect relay outputs to safety interlocks or control circuits
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Periodically inspect module seating and wiring for secure connections
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Review stored fault history for preventive maintenance and diagnostics





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