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- Honeywell
- RM7898A1018
- Burner Controller
- USA
- 127 x 127 x 133 mm
- 0.9 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Honeywell RM7898A1018 is a microprocessor-based on-off primary burner controller from the Honeywell 7800 Series Burner Management System. It is designed for single-burner industrial combustion systems requiring advanced safety logic, burner sequencing, flame supervision, and optional valve proving functions.
It is commonly used in gas, oil, and combination fuel burners in boilers, furnaces, kilns, ovens, and industrial process heating systems where enhanced diagnostics and safety interlocks are required.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Honeywell |
| Model | RM7898A1018 |
| Product Type | Burner Controller |
| Series | 7800 Series |
| Function | On-off burner sequencing + flame safeguard control |
| Control Type | Microprocessor-based |
| System Role | Primary burner programmer/controller |
| Fuel Compatibility | Gas / Oil / Combination fuel |
| Flame Detection | Compatible with Honeywell flame amplifiers |
| Safety Functions | Flame monitoring, ignition supervision, lockout protection |
| Special Functions | Valve proving (VPS), shutter drive output, configurable purge/postpurge |
| Operating Voltage | 120 VAC |
| Frequency | 50/60 Hz |
| Mounting Type | Plug-in module (Q7800 subbase required) |
| System Architecture | Modular (subbase + amplifier + purge timer + display module) |
| Dimensions | 127 × 127 × 133 mm |
| Weight | 0.822 kg |
Function and Working Principle
The RM7898A1018 operates as a full-cycle burner management controller within the Honeywell 7800 system architecture.
Its main functions include:
- Automatic prepurge before burner ignition
- Pilot ignition and main flame establishment sequence
- Continuous flame supervision via flame amplifier input
- Monitoring of all combustion safety interlocks (airflow, pressure, limits, etc.)
- Controlled burner run operation
- Postpurge after shutdown cycle
- Valve proving system (VPS) check before ignition
- Safe lockout with fault history storage and diagnostics
A key distinguishing feature of this model is integrated valve proving capability combined with enhanced sequencing and diagnostic functions, improving pre-ignition safety verification.
Key Features
- Microprocessor-based burner sequencing control
- Integrated valve proving system (VPS)
- Prepurge, ignition, run, and postpurge logic
- Flame supervision with plug-in amplifier modules
- Shutter drive output for UV scanner systems
- LED sequence status indication
- Non-volatile memory for fault history and lockout records
- Configurable interlock and safety logic options
- Compatible with S7800 display/keyboard module
- Modular Honeywell 7800 Series architecture
Industrial Applications
- Industrial boilers
- Process furnaces
- Thermal oil heaters
- Kilns and dryers
- Gas/oil/dual-fuel combustion systems
- Single-burner industrial heating systems requiring valve proving
Role in Industrial Systems
The RM7898A1018 serves as the primary burner programmer/controller, responsible for:
- Safe burner startup sequencing
- Verification of all permissives before ignition
- Valve proving before fuel admission
- Flame supervision during operation
- Execution of shutdown and postpurge logic
- Fault handling with lockout and diagnostics
Installation Notes
- Installed on Honeywell Q7800 series subbase
- Requires compatible flame amplifier module
- Requires ST7800 purge timer module depending configuration
- Valve proving and advanced functions require compatible display module
- Proper grounding and shielding required for flame signal stability
- Commissioning must be performed by qualified combustion technicians
Compatible Equipment
- Honeywell Q7800 subbases
- S7800A keyboard/display module
- ST7800 purge timer modules
- Flame amplifiers (R7847, R7852, etc.)
- UV / IR / flame rod detectors
- Burner valves and ignition systems
Advantages
- Integrated valve proving safety function
- High reliability burner sequencing control
- Strong diagnostic and fault memory capability
- Modular architecture simplifies system maintenance
- Suitable for high-safety combustion applications
Limitations
- Requires full Honeywell 7800 system ecosystem
- Cannot operate as a standalone controller
- Requires trained setup and commissioning
- Designed specifically for combustion applications
Conclusion
The Honeywell RM7898A1018 Burner Controller is a high-integrity industrial combustion control module that integrates burner sequencing, flame supervision, diagnostics, and valve proving safety logic within the Honeywell 7800 Series platform.