7800 Series (EC78xx)
Burner Control Modules
A flexible, modular family of relay-based burner control units for industrial combustion reliability and safety.
Series Overview
The Honeywell 7800 Series (EC78xx) is a modular family of relay-based burner control units designed for industrial combustion systems that require high reliability, flexible system architecture, and strict safety supervision.
Unlike fully integrated digital controllers, the 7800 Series uses a modular relay-based design, allowing system integrators to configure burner control systems according to specific operational needs.
Functional Role in Burner Supervision
7800 Series burner control modules are widely applied in:
- Industrial boilers and steam generators
- Process furnaces and thermal equipment
- Gas, oil, and dual-fuel burner systems
- Industrial combustion systems requiring modular relay logic
Key Differences
Modular Architecture & Differentiation
The 7800 Series is structured around interchangeable relay modules, with key differences including:
- Burner Operation Mode: Options for On-Off or Modulating control logic.
- Diagnostic Level: Varying degrees of diagnostic and safety monitoring.
- System Expansion: Capability for relay configuration and system expansion.
- Compatibility: Designed for broad compatibility with flame detection and safety accessories.
This modular design allows precise adaptation to different industrial burner configurations.
Applications
- Industrial boilers & steam generators
- Process furnaces & thermal equipment
- Gas, oil, and dual-fuel burners
- Modular relay logic requirements
- Safety supervision retrofits
Model Comparison
7800 Series Model Overview
| Model | Control Type | Key Function |
|---|---|---|
| EC7820A1026 | Relay Control | Primary burner sequencing |
| EC7823A1004 | Flame Relay | Flame detection and supervision |
| EC7830A1033 | Relay Control | Standard industrial burner control |
| EC7840L1014/U | Modulating Relay | Modulating burner applications |
| EC7850A1072/U | Relay Control | Advanced diagnostics |
| EC7850A1122/U | Safety Relay | Safety-focused burner control |
| EC7890B1028/U | Relay Control | Automated fuel systems |
| EC7895C1000/U | Relay Control | Integrated safety logic |
Selection Guide
- EC782x / EC783x models: Typically used for standard relay-based burner control.
- EC7840L models: Preferred for modulating burner systems.
- EC7850 / EC7895 models: Selected for applications requiring enhanced diagnostics or safety logic.
Need Relay Modules?
Contact our team for 7800 Series configuration help and replacement modules.