RM7800L2053 Honeywell Burner Control
$3,857.20
Programmer Ctrl LHL-LF&HF Proven Purge
The RM/EC7800 2000 Series must be used with subbases Q7800A2005, Q7800B2003, Q7800B2011
4 in stock
Overview
The Honeywell RM7800L2053 is a modular burner control belonging to the 7800 series. It supports advanced burner sequencing (Full, LHL, LF / HF modes), includes safety features such as proven purge, and is compatible with peripheral modules (displays, amplifiers, sensors). This model is optimized for installations requiring programmability and diagnostic visibility in modern combustion systems.
Product 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 10 oz |
| Weight (kg) | 0.7 kg |
| Comments | Includes S7800 Display, 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, Swiss RE | Acceptable |
| Approvals, Factory Mutual | Report No. 1V9AO.AF. |
Key Features & Benefits
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Supports multiple combustion modes: Full, LHL, LF / HF
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Proven purge logic ensures safe pre-ignition conditions
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Diagnostic features enable technicians to review flame signal and fault history
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Modular design allows upgrading of displays, sensors, reset modules
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Compatible with the 7800 Series ecosystem for flexible system integration
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Designed for dependable operation in industrial or commercial settings
Applications
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Boilers, furnaces, and burner systems requiring programming flexibility
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Retrofit projects needing modernization of burner controls
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Installations where diagnostic feedback and modular upgrades are required
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Systems with multi-stage combustion logic demanding intelligent control
Installation & Maintenance Tips
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Place the RM7800L2053 module in the correctly keyed slot within the control chassis
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Add compatible peripheral modules (display, sensors) as needed
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During commissioning, configure sequencing, timing, and safety parameters
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Use the display or diagnostic interface to monitor flame signal and fault codes
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Periodically check connectors, module seating, and wiring integrity
| Weight | 4 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
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