The Honeywell RM7850A1019 is a microprocessor‑based burner management control module from Honeywell’s proven 7800 Series, engineered to provide precise combustion sequencing, flame supervision, and safety diagnostics for industrial, commercial, and process heating applications. This controller is optimized for modulating gas, oil, or combination fuel burners, combining automatic ignition, purge timing, flame detection, and lockout protection in a single integrated unit.
Featuring non‑volatile memory for fault history and lockout data, the RM7850A1019 enhances operational transparency and simplifies maintenance diagnostics. Designed for integration with plug‑in flame amplifiers and purge timer accessories, this module is well suited for modern boiler plants, kiln systems, industrial ovens, and other combustion control installations that demand both safety and performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | RM7850A1019 |
| Brand | Honeywell |
| Series | 7800 Series Burner Control |
| Product Type | Microprocessor‑Based Burner Management Control Module |
| Application | Modulating gas, oil, or combination‑fuel burners |
| Supply Voltage | 120 VAC ±10 %, 50/60 Hz |
| Power Consumption | ~10 W |
| Pilot Flame Establishing Period | 3 s or 5 s (selectable) |
| Main Flame Establishing Period | 3 s, 5 s, or intermittent |
| Early Spark Termination | 5 s |
| Post‑Purge Time | 2 s |
| Flame Supervision | Continuous flame verification |
| Diagnostics | Status LEDs and fault indicators |
| Run/Test Switch | Five‑position run/test diagnostic switch |
| Memory | Non‑volatile fault & lockout history |
| Compatible Accessories | Plug‑in flame amplifiers (UV/IR/flame rod), purge timer cards |
| Mounting | Standard 7800 Series wiring base |
| Operating Temperature | –40 °C to +60 °C |
| Dimensions (L × W × H) | 127 × 127 × 133 mm |
| Weight | 0.70 kg |
| Certifications | UL, CSA, FM, CE |
The RM7850A1019 combines advanced combustion sequencing and safety logic with practical diagnostic tools, making it a highly capable controller for demanding industrial burner systems.
Recommended Related Models
| Model | Description |
|---|---|
| Honeywell RM7850A1001 | Modulating burner management controller |
| Honeywell RM7840L1026 | Burner management control for single systems |
| Honeywell RM7840L1018 | Microprocessor burner safety controller |
| Honeywell RM7824A1006 | Flame relay/amplifier module |
| Honeywell R7847 | Flame amplifier accessory |
Popular Honeywell Combustion Control Components
| Model | Product Type |
|---|---|
| Honeywell RM7800G1018 | Advanced burner controller |
| Honeywell RM7800M1011 | Maintenance‑oriented burner control module |
| Honeywell S7800A1001 | Keyboard display module |
| Honeywell ST7800A | Purge timer card |
| Honeywell R7848 | Flame signal amplifier |
