RM7840L1026 Honeywell Burner Control
$3,242.20
The Honeywell RM7840L1026 Burner Control 120V, 50/60 HZ. AirFlow Switch CHECK OPTION. INTERMITTENT Pilot. INCLUDES DUST Cover.; Microprocessor Based Integrated Burner Control for Automatically Fired Gas, Oil, Coal or Combination Fuel Single Burner Applications, 120Vac, 10 Second or Intermittent Main Flame Establishing Period, 4 Second or 10 Second Pilot Flame Establishing Period, Intermittent Second Stage Pilot Valve, Lockout Interlocks, Interuppted Pilot, 5 Second Early Spark Termination, 15 Second PostPurge, User Selectable AirFlow Check, Five Function Run/Test Switch, LHL-LF and HF Proven
UPC: 085267142861
The Honeywell RM7840L1026 Burner Control 120V, 50/60 HZ. AirFlow Switch CHECK OPTION. INTERMITTENT Pilot. INCLUDES DUST Cover.
Overview
The Honeywell RM7840L1026 is a microprocessor-based programming burner control from the 7800 Series designed for industrial and commercial single-burner systems. It ensures safe and efficient burner operation with features such as interrupted or intermittent pilot options, proven purge, and LED diagnostic indicators. Built for reliability, this control provides sequencing, flame supervision, and fault history retention in a compact, serviceable design.
Features
Microprocessor-based control with selectable timing and self-diagnostics
Proven purge function for verified pre-ignition safety
Interrupted or intermittent pilot operation
LED indicators for power, flame, pilot, and fault conditions
Non-volatile memory retains fault and lockout history
Plug-in modular design compatible with 7800 Series subbases and accessories
Operates in wide ambient temperature ranges for industrial durability
Specifications
| Application | Programming Control |
| 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 | LHL-LF&HF Proven |
| 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. |
| Flame Establishing Period – Pilot | 4 sec or 10 sec |
| Flame Establishing Period – Main | 10 sec or Intermittent |
| Interlocks | Lockout |
| Preignition | Yes |
| PrePurge | Determined by ST7800A Purge Timer Card |
| PostPurge | 15 sec |
| Early Spark Termination | Yes, 5 sec |
| Required Components | Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card. |
| AirFlow Check | User selectable |
| Second Stage Pilot Valve | Intermittent |
| Pilot Type | interrupted |
| Vibration | 0.5 G environment |
| Approvals, Control Safety Devices | Acceptable: CSD-1 |
| Approvals, Swiss RE | Acceptable |
| Approvals, Factory Mutual | Report No. OX4A5.AF. |
Applications
The RM7840L1026 is ideal for:
Industrial and commercial boilers and furnaces
Process heating and drying equipment
Gas, oil, or dual-fuel burner systems
Burner retrofits requiring enhanced safety and diagnostics
Systems requiring selectable ignition configurations
Benefits
Enhances safety through proven-purge and flame-supervision logic
Simplifies troubleshooting with built-in diagnostics and LED indicators
Retains lockout and history data for easy maintenance
Provides flexibility with selectable pilot and main flame timings
Durable, modular design for quick installation and replacement
| Weight | 4 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
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