The Honeywell R7847A1033 STANDARD. 3S FFRT. RECOMMENDED FOR CYCLED HEATING EQUIPMENT. USE WITH Flame ROD, PHOTO- CELL, OR C7012A,C. R7847A1033 Honeywell Flame Amplifier Datasheet R7847A1033 Honeywell Flame Amplifier Installation Guide Overview Solid-state plug-in flame amplifier designed to process flame detector inputs and indicate flame presence when used with the Honeywell 7800 Series primary safety control relay modules. Ideal for burner systems needing durable, reliable flame monitoring with moderate response times. Key Features Flame Failure Response Time (FFRT): Selectable at 2.0 seconds or 3.0 seconds for different startup requirements or safety margins. Flame Signal Range: 0.0 Vdc to 5.0 Vdc signal reading via test jacks, allowing measurement of signal strength. Detection Type Compatibility: • Rectifying flame rods (gas sensors): C7004, C7005, C7007, C7008, C7009, Q179 • Ultraviolet flame sensors for gas, oil, coal: e.g., C7012A/C Connector & Installation: Plug-in design using printed circuit board (PCB) edge connector, keyed for proper orientation into 7800 Series relay modules. Color Coding: Green label to denote rectification type amplifier, for quick visual identification Environmental & Operating Conditions: • Operating temperature: −40°F to 140°F (−40°C to 60°C) • Storage: −40°F to 150°F (−40°C to 65°C) • Humidity: continuous up to ~85% RH, non-condensing Safety & Control: Used with primary safety control via 7800 Series relay modules. When system fails or flame detection fails, relay module performs lock-out for safety. Technical Specifications Specification Detail Model Number Honeywell R7847A1033 Flame Failure Response Time (FFRT) 2.0 or 3.0 seconds Flame Signal Voltage Range 0.0 to 5.0 Vdc Detection Type Rectification (also UV sensors supported for some flame types) Compatible Flame Sensors C7004, C7005, C7007, C7008, C7009, Q179 (rectifying rods); ultraviolet sensors (C7012A/C) for oil/coal/gas in mixed applications. Primary Safety Control Honeywell 7800 Series relay modules Operating Temp −40°F to 140°F (−40°C to 60°C) Storage Temp −40°F to 150°F (−40°C to 65°C) Humidity Up to ~85% RH non-condensing Applications Industrial and commercial burner management systems Gas, oil, and coal flame safeguard applications Replacement amplifier for Honeywell 7800 Series controls Use with rectifying flame rods and compatible UV flame sensors Benefits Fast safety response with selectable FFRT Easy integration into existing Honeywell systems Reliable signal monitoring with 0–5 Vdc flame strength output Designed for harsh environments with wide operating range
