Primary Flame Safeguard with Pre/Post Purge and Interrupted Pilot
The Honeywell RM7896C2010 is a microprocessor-based primary burner control designed for on-off single-burner applications using gas, oil, or combination fuels. It offers integrated flame safeguard capabilities, automatic burner sequencing, and advanced diagnostics. This model includes built-in pre-purge and post-purge functionality, making it suitable for high-performance burner systems that require enhanced safety and NFPA-compliant sequencing.
Technical Specifications
- Model: RM7896C2010
- Series: RM7800
- Product Type: Primary Burner Control
- Power Supply: 120V AC (+10%, -15%), 50/60 Hz
- Application: On-Off Burner with Pre and Post Purge
- Burner Type: Automatically Fired, Interrupted Pilot
- Flame Establishing Period – Pilot: 4 or 10 seconds
- Flame Establishing Period – Main: 10 seconds
- PrePurge: Determined by ST7800A Purge Timer Card
- PostPurge: Fixed at 15 seconds
- Interlocks: Selectable
- Delayed Main Valve: Yes
- Mounting: Q7800A or Q7800B Subbase required
- Weight: 1 lb 15 oz (0.9 kg)
- 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
- Temperature Range (Shipping & Storage): -40°F to +140°F (-40°C to +60°C)
- Vibration Tolerance: 0.5 G environment
- Condition: New
Key Features
- Integrated pre-purge and post-purge control for enhanced safety
- Interrupted pilot control for increased fuel efficiency
- Microprocessor-based sequencing and diagnostics
- Five LED indicators provide real-time sequence and fault info
- Interchangeable plug-in flame amplifiers for UV, IR, or rectification sensing
- Retains operational history and fault logs in nonvolatile memory
- Supports remote reset and annunciation options
- Optional display modules and software interfaces available
Compatible Accessories
- Q7800A or Q7800B Subbase
- ST7800A Purge Timer Card
- R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Amplifiers
- S7800A or other Honeywell Keyboard Display Modules
- Flame rods, UV and IR scanners
Industry Applications
- Commercial and industrial boilers
- Packaged burner systems
- Process heating and thermal control
- Combustion safety systems requiring pre/post purge
Installation & Maintenance Notes
- Must be mounted with compatible Q7800 subbase
- Flame amplifier and sensor must match burner type
- PrePurge duration set via ST7800A purge timer card
- Confirm proper interlock wiring and airflow switch operation
- Review sequence and lockout status via onboard LEDs or remote display