Honeywell RM7840E1016 7800 Series Relay Module
The Honeywell RM7840E1016 is a microprocessor-based burner control relay module designed for automatically fired gas, oil, or combination fuel single-burner applications. Operating as part of the 7800 Series system, this programming control provides automatic burner sequencing, flame supervision, system status indication, and self-diagnostics to ensure safe ignition and continuous monitoring during operation.
Functional Features and Operation
This module integrates precise timing functions to optimize combustion safety and operational control. Features include user-selectable airflow check functionality, a 15-second post-purge cycle, pre-ignition verification, and a 5-second early spark termination sequence. It supports interrupted pilot arrangements alongside interrupted second-stage pilot valve timing, ensuring defined fuel-ignition timing during startup.
System Components and Enclosure
The assembly includes a protective dust cover to shield internal electronic components from industrial contamination. The relay module mounts directly onto a standard 7800 Series wiring subbase, requiring a plug-in flame signal amplifier and a purge card to establish complete burner management capability.
Specifications
| Parameter | Specification |
|---|---|
| Model | RM7840E1016 |
| Brand | Honeywell |
| Product Type | Burner Control Relay Module |
| Series | 7800 Series |
| Pilot Type | Interrupted pilot |
| Second Stage Pilot | Interrupted second-stage pilot valve |
| Early Spark Termination | 5 seconds |
| Post Purge Time | 15 seconds |
| Airflow Check | User selectable |
| Weight | 3.00 lbs |
Frequently Asked Questions
Q: What additional components are required to operate the RM7840E1016? A: The module requires a compatible 7800 Series wiring subbase, a plug-in purge card to set pre-purge timing, and a plug-in flame signal amplifier selected for the specific flame detector in use.
Q: How does the early spark termination feature function during burner ignition? A: Early spark termination cuts off the direct ignition spark 5 seconds before the main fuel valve period expires, allowing the system to verify pilot stability prior to main flame establishment.
Honeywell RM7840E1016 7800 Series Relay Module
Honeywell RM7840E1016 7800 Series Relay Module
The Honeywell RM7840E1016 is a microprocessor-based burner control relay module designed for automatically fired gas, oil, or combination fuel single-burner applications. Operating as part of the 7800 Series system, this programming control provides automatic burner sequencing, flame supervision, system status indication, and self-diagnostics to ensure safe ignition and continuous monitoring during operation.
Functional Features and Operation
This module integrates precise timing functions to optimize combustion safety and operational control. Features include user-selectable airflow check functionality, a 15-second post-purge cycle, pre-ignition verification, and a 5-second early spark termination sequence. It supports interrupted pilot arrangements alongside interrupted second-stage pilot valve timing, ensuring defined fuel-ignition timing during startup.
System Components and Enclosure
The assembly includes a protective dust cover to shield internal electronic components from industrial contamination. The relay module mounts directly onto a standard 7800 Series wiring subbase, requiring a plug-in flame signal amplifier and a purge card to establish complete burner management capability.
Specifications
| Parameter | Specification |
|---|---|
| Model | RM7840E1016 |
| Brand | Honeywell |
| Product Type | Burner Control Relay Module |
| Series | 7800 Series |
| Pilot Type | Interrupted pilot |
| Second Stage Pilot | Interrupted second-stage pilot valve |
| Early Spark Termination | 5 seconds |
| Post Purge Time | 15 seconds |
| Airflow Check | User selectable |
| Weight | 3.00 lbs |
Frequently Asked Questions
Q: What additional components are required to operate the RM7840E1016? A: The module requires a compatible 7800 Series wiring subbase, a plug-in purge card to set pre-purge timing, and a plug-in flame signal amplifier selected for the specific flame detector in use.
Q: How does the early spark termination feature function during burner ignition? A: Early spark termination cuts off the direct ignition spark 5 seconds before the main fuel valve period expires, allowing the system to verify pilot stability prior to main flame establishment.
