RM7898A1000 On-Off Primary Burner Control with Valve Proving, Programmable Post Purge, and LED Fault Codes – RM7800 Series

RM7898A1000 On-Off Primary Control
Integrated Burner Control with Valve Proving System, Programmable Post Purge, Blinking LED Fault Codes, and Selectable Interlocks

The RM7898A1000 is a microprocessor-based On-Off primary control designed for gas, oil, or combination fuel single burner systems. It features integrated Valve Proving and programmable post purge capabilities (configured via the S7800A1142 Keyboard Display Module), providing advanced safety and performance beyond standard flame safeguard systems.

Key Features

• Integrated Valve Proving System (VPS) for gas leak testing before startup

• Programmable post purge (via optional S7800A1142 display)

• Automatic burner sequencing and flame supervision

• LED indicators display sequence steps; power LED blinks fault codes

• Interchangeable flame amplifiers for UV, IR, and rectification detection

• Selectable recycle or lockout on airflow or flame failure

• Optional PC interface, remote display, or annunciator modules

• Remote reset and report generation options

• Shutter drive output and airflow switch check included

• Nonvolatile memory retains system status after power loss

• Flame establishing period (pilot): 4 or 10 seconds

• Prepurge time determined by ST7800A purge timer card

Technical Specifications

Required Components

• Subbase: Q7800A or Q7800B Universal Wiring Subbase

• Amplifier: R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Series

• Purge Timer: ST7800A Plug-in Purge Timer Card

• Display (optional): S7800A1142 for VPS/post purge programming

Common Applications

• Commercial and industrial burners

• Process heating equipment

• Systems requiring safety shutoff with integrated valve proving

• On-Off burner control needing diagnostics and fault tracking