Description
Honeywell R7847A1082 Rectification Flame Amplifier for 7800 Series, 2.0/3.0 sec FFRT, No Self-Check, Green
Overview
The Honeywell R7847A1082 is a solid-state, plug-in flame amplifier designed for use with Honeywell 7800 and R7140 Series relay modules. It detects flame presence via rectifying flame rods or compatible UV sensors, providing reliable flame monitoring without self-check functionality—ideal for applications where dynamic testing is not required.
Key Features
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Selectable Flame Failure Response Time: Choose between 2.0 or 3.0 seconds FFRT to meet system safety requirements.
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Flame Signal Range: Measures flame signal voltage from 0.0 to 5.0 Vdc for accurate flame detection and diagnostics.
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Compatible Flame Sensors: Supports gas rectifying flame rods (C7004, C7005, C7007, C7008, C7009), impedance matching module Q179 for leadwire runs over 50 feet, and ultraviolet flame sensors (C7012A, C7012C).
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Plug-In Installation: Connects directly to 7800 Series relay modules via keyed printed circuit board edge connector for secure and straightforward setup.
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Color-Coded Label: Green for easy identification in systems with multiple flame amplifier types.
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No Self-Check: Simplified design for applications where manual or external testing is preferred.
Product Specifications
| Specification | Details |
|---|---|
| Type | Rectification Flame Amplifier |
| Flame Failure Response Time | 2.0 or 3.0 seconds (Selectable) |
| Self-Checking | None (Standard) |
| Compatible Controls | Honeywell 7800 Series and R7140 Series Relay Modules |
| Compatible Flame Sensors | C7004, C7005, C7007, C7008, C7009, Q179, C7012A, C7012C |
| Flame Signal Voltage Range | 0.0 – 5.0 Vdc |
| Color | Green |
Typical Applications
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Gas-fired industrial and commercial burner management systems requiring rectification flame detection without dynamic self-testing.
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Installations with long leadwire runs using Q179 impedance matching for reliable signal transmission.
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Systems employing Honeywell 7800 or R7140 Series relay modules for flame supervision.
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Cost-effective burner monitoring solutions where self-check is not mandated.
