RM7838B1021 Honeywell Burner Control
$2,500.00
The Honeywell RM7838B1021 Burner Control Manual Start Industrial Programmers, 120Vac, 10 Second or Intermittent Main Flame Establishing Period, 4 Second or 10 Second Pilot Flame Establishing Period, Includes S7800A1142 Display, Interrupted Pilot, 5 Second Early Spark Termination, Pre-ignition, Lockout Interlocks, Nonvolatile Memory, -40-140 Degree Ambient Temperature Range
Overview
The Honeywell RM7838B1021 is a microprocessor-based semi-automatic ON/OFF programming burner control from the RM7800 / RM7838B line. It includes an integrated Valve Proving System (VPS) for additional safety verification. Designed for 120 VAC systems, it handles full burner sequencing, flame supervision, diagnostics, selectable timing, and a programmable postpurge.
This module is built for industrial and commercial combustion systems where reliability, safety, and maintainable operation are essential.
Features
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Semi-automatic ON/OFF burner control with Valve Proving System (VPS)
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Microprocessor-based logic with self-diagnostics and status reporting
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Five LED indicators showing sequence and fault states
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Non-volatile memory retaining fault history after power loss
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Selectable pilot flame establishing period: 4 seconds or 10 seconds
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Selectable main flame establishing period: 10 seconds or intermittent
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Early spark termination (5 seconds)
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Programmable postpurge time via on-board display module
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Supports interlocks, preignition checks, and fault lockout logic
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Modular and plug-in design for easier service and replacement
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Compatible with standard subbases, amplifiers, and purge cards
Specifications
| Part Number | RM7838B1021 |
| Application | Semi Automatic 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) | 7 kg |
| Comments | Includes programmable VPS (Valve Proving Switch) check feature and blinking LED fault annunciation |
| 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 Intermittent |
| 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. |
| Pilot Type | interrupted |
| Vibration | 5 G environment |
| Approvals, Control Safety Devices | Acceptable: CSD-1 |
| Approvals, Swiss RE | Acceptable |
| Approvals, Factory Mutual | Report No. OX4A5.AF. |
Applications
The RM7838B1021 Honeywell Burner Control is suited for combustion systems that require enhanced safety via valve proving, along with standard burner control functions. Typical systems include:
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Industrial boilers and furnaces
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Packaged burner systems
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Gas, oil, or combination fuel single burners
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Systems requiring modular control and serviceability
It ensures safe ignition sequencing, flame supervision, and automatic shutdown when faults are detected.
Benefits
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Advanced safety with Valve Proving System (VPS)
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Modular plug-in design enables quick replacement
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Diagnostic LEDs and fault history simplify troubleshooting
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Flexible timing options support varied burner setups
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Built for industrial environments with robust reliability
| Weight | 4 lbs |
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| Dimensions | 9 × 9 × 9 in |
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