RM7838B2021 Honeywell Burner Control
$2,375.20
Man. Start Indust. Pgrm. w/Valve Proving
The RM/EC7800 2000 Series must be used with subbases Q7800A2005, Q7800B2003, Q7800B2011
UPC: 085267786126
RM7838B2021 Honeywell Burner Control Datasheet
Overview
The Honeywell RM7838B2021 is a microprocessor-based primary burner control from the Honeywell 7800 Series, designed for semi-automatic, interrupted-pilot applications. It includes a built-in Valve Proving System (VPS) for verifying fuel shut-off valves before ignition, ensuring safer operation in gas, oil, or combination-fuel burners.
This control provides advanced sequencing, flame supervision, and safety interlock monitoring, along with LED diagnostics, lockout memory, and compatibility with other Honeywell 7800 Series modules.
Features
-
Integrated Valve Proving System (VPS) for pre-ignition fuel-valve verification
-
Semi-automatic start for interrupted-pilot systems
-
Selectable 4- or 10-second pilot trial and intermittent main trial timing
-
Non-volatile memory retains lockout and flame signal data
-
LED indicators show power, sequence status, and fault diagnostics
-
Modular design compatible with Q7800A/B subbases and ST7800 purge timers
-
Wide ambient temperature range suitable for industrial environments
-
Compatible with Honeywell flame amplifiers such as R7847, R7848, R7849, R7851, R7861, and R7886
Specifications
| 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) | 0.7 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 | 0.5 G environment |
| Approvals, Control Safety Devices | Acceptable: CSD-1 |
| Approvals, Swiss RE | Acceptable |
| Approvals, Factory Mutual | Report No. OX4A5.AF. |
Applications
The RM7838B2021 is designed for commercial and industrial burner systems where safety, reliability, and flexibility are required. Common applications include:
-
Boilers, furnaces, and ovens using gas or oil burners
-
Process heating systems requiring interrupted-pilot ignition
-
Systems needing Valve Proving System (VPS) for pre-ignition safety
-
Retrofit or replacement of legacy burner safety controls
-
Single-burner or packaged burner management systems
This control offers dependable sequencing and protection in critical combustion environments.
Benefits
-
Built-in VPS enhances burner safety by verifying valve integrity
-
Modular plug-in architecture simplifies replacement and maintenance
-
LED indicators and lockout history improve troubleshooting
-
Broad operating temperature range supports harsh installations
-
Compatible with a wide range of Honeywell 7800 Series accessories
-
Compact, reliable design suited for long-term burner operation
| Weight | 4 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
Be the first to review “RM7838B2021 Honeywell Burner Control”
You must be logged in to post a review.
Related Product(s)
Reviews
There are no reviews yet.