Description
The Honeywell R7847B1072 is a plug-in Flame Signal Amplifier designed for use with Honeywell 7800 Series Burner Controls. Featuring Ampli-Check technology, this amplifier continuously monitors the flame signal circuit to verify that the amplifier itself is functioning correctly — providing an added layer of safety assurance in commercial and industrial combustion systems.
Flame Failure Response Time
The R7847B1072 offers selectable flame failure response times of either 2 seconds or 3 seconds, allowing installers to match system requirements for precise combustion safety timing.
Compatible Flame Sensors
This amplifier is engineered to work with a broad range of Honeywell flame sensing technologies:
- Rectifying Flame Rods: C7004, C7005, C7007, C7008, and C7009
- Q179 Series Flame Rods — for impedance-matching applications with sensor lead runs greater than 50 feet
- Ultraviolet (UV) flame detectors
Key Features
- Ampli-Check self-monitoring technology for enhanced system reliability
- Selectable 2-second or 3-second flame failure response time
- Compatible with rectifying flame rods (C7004, C7005, C7007, C7008, C7009)
- Supports Q179 flame rods for long-run impedance matching (runs greater than 50 feet)
- Compatible with ultraviolet (UV) flame sensors
- Plug-in design for easy installation and replacement in Honeywell 7800 Series Burner Controls
- Designed for gas-fired burner applications
Applications
The R7847B1072 is ideal for commercial and industrial gas-fired burner systems where reliable flame detection and fast response to flame failure are critical. It is commonly used in boilers, process heaters, and other combustion equipment utilizing Honeywell 7800 Series programmable or relay-type burner controls.
Why Choose the Honeywell R7847B1072?
With its Ampli-Check self-diagnostic capability, the R7847B1072 goes beyond standard flame amplification — it actively monitors its own signal path to detect faults before they become safety hazards. Combined with broad sensor compatibility and a selectable response time, this amplifier is a trusted solution for demanding combustion control applications.
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