120V Burner Management with Proven Purge and Sequencing
The Honeywell RM7845A2001 is a microprocessor-based programmer control module designed for use in single-burner gas, oil, or combination fuel systems. It delivers safe burner sequencing, flame supervision, and proven purge functions. This module supports Low-High-Low (LHL), Low Fire (LF), and High Fire (HF) purge sequences and is ideal for commercial and industrial combustion applications requiring programmable control and diagnostics.
Technical Specifications
- Model: RM7845A2001
- Series: RM7800
- Voltage: 120V AC (+10%, -15%)
- Frequency: 50/60 Hz
- Power Consumption: 10W max
- Application: Single-burner on-off control with purge sequences
- Flame Amplifier Compatibility: R7847, R7848, R7849, R7851, R7852, R7861, R7886
- Maximum Load: 2000 VA
- Mounting: Requires Q7800A or Q7800B subbase
- Ambient Temperature Range: -40°F to +140°F
- Humidity: Up to 85% RH, non-condensing
- Vibration Tolerance: 0.5 G
- Condition: New
Key Features
- Supports proven purge sequences including LHL, LF, and HF
- Provides burner startup, operation, and shutdown sequencing
- Built-in flame monitoring and safety shutdown
- Displays sequence and fault status via five LED indicators
- Modular design allows integration with a variety of flame amplifiers
- Supports remote reset and annunciation options
- Stores lockout history and burner operation data in nonvolatile memory
- Compatible with optional display modules and communications add-ons
Compatible Accessories
- Q7800A or Q7800B Subbase
- ST7800A Plug-in Purge Timer Module
- S7800A Keyboard Display Module
- R7847, R7848, R7849, R7851, R7852, R7861, R7886 Flame Amplifiers
- S7810 ControlBus or Modbus Communication Modules
- S7830 Expanded Annunciator
Industry Applications
- Industrial boilers and burners
- Process heating systems
- Furnaces and kilns
- Commercial HVAC combustion controls
Installation & Maintenance Notes
- Install only with compatible Honeywell subbase
- Confirm proper amplifier selection and wiring configuration
- Use purge timer module to set purge duration
- Use onboard LEDs or display module for status and lockout diagnostics
- Periodically inspect flame sensors and interlocks for safe operation
This part is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.