RM7840L1075 Microprocessor-Based Burner Control with LHL-LF & HF Proving, Valve Proving, and Purge — Requires S7800A1142 Display Module

RM7840L1075 Programmer Control LHL-LF & HF Prove, Purge — Requires S7800A1142 Display
Microprocessor-based integrated burner control for automatically fired gas, oil, coal, or combination fuel single burner applications, 120 Vac

The RM7840L1075 provides advanced burner safety and control features beyond conventional controls, including automatic sequencing, flame supervision, and Valve Proving. It supports LHL operation with low-fire and high-fire proving, programmable post purge, and diagnostic capabilities. Setup of Valve Proving and post purge timing requires the S7800A1142 keyboard display module.

Key Features

• Automatic burner sequencing with flame supervision and troubleshooting

• Access for external electrical voltage checks

• Flexible application and communication interface capability

• Five LEDs display sequence status; power LED blinks fault codes on lockout

• Five-function Run/Test switch

• Interchangeable plug-in flame amplifiers

• Optional local or remote annunciation of operation and fault information

• Nonvolatile memory retains history and lockout status after power loss

• Compatible with Honeywell flame detectors

• Requires S7800A1142 keyboard display to program Valve Proving and post purge timing

Technical Specifications