Modulating Primary Control with Prepurge for Infrared and On-Off Burners
The Honeywell RM7895E2002 is a microprocessor-based primary burner control designed for automatically fired single-burner applications using gas, oil, or combination fuels. This model offers advanced burner sequencing, flame supervision, and safety shutdown functionality, along with enhanced compatibility for infrared heater applications. It features prepurge operation and is designed for use with R7847 flame amplifiers, providing higher sensor voltage ideal for specific flame signal conditions.
Technical Specifications
- Model: RM7895E2002
- Series: RM7800
- Product Type: Modulating Primary Burner Control
- Power Supply: 120V AC (+10%, -15%), 50/60 Hz
- Application: On-Off Burner with Prepurge
- Pilot Type: Intermittent
- Flame Establishing Period – Pilot: 15 or 30 seconds
- Flame Establishing Period – Main: Intermittent
- PrePurge: Set by ST7800A Purge Timer Card
- Interlocks: Selectable
- Delayed Main Valve: No
- Used With: R7847 Flame Amplifier (only)
- Dimensions (with Q7800A): 5″ W x 5″ H x 5-1/4″ D
- Dimensions (with Q7800B): 5″ W x 5″ H x 6-3/32″ D
- Weight: 1 lb 15 oz (0.9 kg)
- Vibration Tolerance: 0.5 G
- Shipping & Storage Temperature Range: -40°F to +140°F (-40°C to +60°C)
- Condition: New
Key Features
- Higher flame sensor voltage suitable for infrared heater applications
- Provides full burner sequencing, flame monitoring, and self-diagnostics
- Supports prepurge via ST7800A purge timer
- Five LED indicators for sequence and lockout status
- Compatible with optional keyboard display and remote monitoring modules
- Retains operational history with nonvolatile memory
- Optional remote reset and system report generation
- Airflow switch check and selectable relight on flame loss
Compatible Accessories
- Q7800A or Q7800B Universal Subbase
- ST7800A Purge Timer Card
- R7847 Flame Amplifier (required)
- S7800A or 4-line LCD Keyboard Display Module
- Flame rods and appropriate scanners
Industry Applications
- Infrared heating systems
- On-off burner control for industrial ovens and furnaces
- Commercial heating boilers
- Modulating or staged combustion systems
Installation & Maintenance Notes
- Install with Q7800A or Q7800B subbase
- Use only with R7847 flame amplifier
- Set purge time using ST7800A card
- Review flame signal strength and system status using onboard LEDs or optional display
- Periodically inspect flame rod or sensor for buildup or degradation
This part is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.