RM7840G2022 Honeywell Burner Control
$2,829.50
Pgrm. Ctrl. for VPS LHL-LF Proven Purge
The RM/EC7800 2000 Series must be used with subbases Q7800A2005/U, Q7800B2003/U, Q7800B2011/U
UPC: 85267861816
RM7840G2022 Honeywell Burner Control Datasheet
Overview
The Honeywell RM7840G2022 is a microprocessor-based programming burner control from the 7800 Series, engineered for industrial and commercial flame safeguard systems. It provides sequencing, flame supervision, proven purge functionality, and an integrated Valve Proving System (VPS) for enhanced safety verification of fuel valve integrity.
Designed to ensure precise, safe burner operation, the RM7840G2022 includes non-volatile memory, LED diagnostics, and compatibility with other Honeywell 7800 Series modules—making it a dependable solution for critical combustion control systems.
Features
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Integrated Valve Proving System (VPS) for automatic fuel valve integrity checks
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Microprocessor-based design with advanced sequencing and self-diagnostics
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Provides flame supervision, ignition timing, and safe start checks
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Selectable pilot flame establishing times (4 or 10 seconds)
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Selectable main flame establishing times (10, 15, 30 seconds, or intermittent)
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Non-volatile memory retains fault and lockout history after power loss
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LED indicators for system status, flame signal, and fault diagnostics
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Compatible with standard Honeywell 7800 Series subbases, amplifiers, and purge timers
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Optional display module for real-time diagnostics and lockout history
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UL, CSA, and FM approved for commercial and industrial applications
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 | Requires S7800A1142 Display, LHL-LF 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, 15 sec, 30 sec, or Intermittent |
| Interlocks | Running |
| 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 | selectable |
| Pilot Type | interrupted |
| Vibration | 0.5 G environment |
| Approvals, Factory Mutual | Report No. 1V9AO.AF. |
Applications
The RM7840G2022 is designed for burner management systems that require precise flame control and safety validation. Common applications include:
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Industrial and commercial boilers
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Process heating systems and furnaces
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Dual-fuel or gas/oil combustion systems
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Burner systems with valve proving requirements
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Retrofit upgrades for older flame safeguard systems
Benefits
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Ensures safe burner startup, supervision, and shutdown
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Integrated valve proving adds a critical safety layer for fuel delivery systems
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Retains lockout and fault history for simplified maintenance
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Modular design for easy servicing and upgrades
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Compatible with multiple Honeywell accessories and control modules
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Proven reliability in high-demand industrial environments
| Weight | 4 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
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