RM7800L2087 Honeywell Burner Control
$4,011.00
Pgrm Ctrl for VPS LHL-LF&HF Proven Purge
The RM/EC7800 2000 Series must be used with subbases Q7800A2005/U, Q7800B2003/U, Q7800B2011/U
Overview of RM7800L2087 Honeywell Burner Control
The RM7800L2087 is an enhanced microprocessor-based burner control in Honeywell’s 7800 Series. It supports “VPS LHL-LF & HF” programming with proven purge capability. It offers robust sequencing, flame supervision, diagnostics, and plug-in modular flexibility. It is used to manage safety and operation of oil, gas, or combination fuel burners.
Key Features & Benefits
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Full burner sequencing (prepurge, ignition, main flame, postpurge), with flame supervision and lockout logic
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Built-in diagnostics and system status indicators via LEDs and display module
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Nonvolatile memory retains history and operational state through power loss
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Interchangeable plug-in flame amplifiers for flexibility
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Compatible with optional remote display modules, annunciators, and FIELD interfaces
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Unlockable configuration including valve proving test timing and purge scheduling
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Can be used with airflow switch checks, multiple interlocks, and remote reset capability
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Supports flame establishing periods configurable for pilot and main stages
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Designed for modularity: requires subbase, amplifier, display, and purge timer card to function
Product Specifications
| Application | Programming Control w/VPS |
| 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 S7800A1142 Display, LHL-LF&HF Proven |
| Frequency | 50 Hz; 60 Hz (±10%) |
| Approvals, Underwriters Laboratories Inc. | Component Recognized, File No. MP268; Guide No. MCCZ. |
| 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 15 sec |
| Interlocks | Lockout |
| Preignition | Yes |
| PrePurge | Determined by ST7800A Purge Timer Card |
| PostPurge | programmed with S7800A1142 display |
| 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 | Interrupted |
| Pilot Type | interrupted |
| Vibration | 0.5 G environment |
| Approvals, Factory Mutual | Report No. 1V9AO.AF. |
Applications
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Commercial or industrial burner systems using oil, gas, or blended fuel
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Replacement or upgrade applications where enhanced sequencing, diagnostics, or modular flexibility is desired
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Systems requiring valve proving, remote monitoring, or advanced control logic
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Burners needing configurable purge logic, flame failure response settings, and lockout tracking
Installation & Maintenance Recommendations
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Assemble the control onto a properly wired subbase that matches 2xxx series (Q7800A or Q7800B)
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Add the required plug-in flame amplifier, purge timer card, and display module for operation
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Configure features such as purge time, flame establishing periods, and valve proving settings using the display module
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Connect interlocks (airflow, limits, safety switches) per proper terminal assignments
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During commissioning, check LED status indicators and lockout history to confirm correct operation
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Periodically check wiring integrity, examine for corrosion or loose connections, and verify that no unapproved modifications are present
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Use optionally available remote modules or annunciators to extend control visibility in larger systems
| Weight | 3 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
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