Microprocessor-Based On/Off Control for Industrial Combustion Systems
The Honeywell RM7830A1029 burner control module provides a reliable, microprocessor-based solution for industrial on/off combustion applications. This 7800 series relay module manages single-burner systems using gas, oil, or combination fuels with automatic sequencing and flame supervision . Its integrated design combines safety, functionality, and comprehensive system diagnostics in a compact plug-in package.
The module operates on a 120V AC supply at 50/60 Hz with a maximum power dissipation of 10W . It requires the Q7800A or Q7800B universal wiring subbase and an appropriate plug-in flame signal amplifier (R7847, R7849, R7861, or R7886) . The RM7830A1029 features a 30-second prepurge timing and a 30-second postpurge duration .
Five LEDs on the front panel provide clear sequence status indication, while the five-function Run/Test Switch aids in commissioning and troubleshooting . The module’s nonvolatile memory retains fault history and lockout status even after a power loss . It supports selectable pilot flame establishing periods of 3 or 5 seconds and offers interrupted pilot operation .
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Honeywell |
| Model | RM7830A1029 |
| Product Category | Burner Control Relay Module |
| Application | On/Off power burner control |
| Operating Voltage | 120 Vac (+10/-15%), 50/60 Hz |
| Power Dissipation | 10W maximum |
| Maximum Connected Load | 2000 VA |
| Prep purge | 30 seconds (determined by ST7800A purge card) |
| Postpurge | 30 seconds |
| Pilot Flame Establishing Period | Selectable 3 or 5 seconds |
| Main Flame Establishing Period | 3, 5 seconds, or intermittent |
| Pilot Type | Interrupted |
| Dimensions (with Q7800A Subbase) | 127 mm x 127 mm x 133 mm |
| Weight | Approx. 0.7 kg (1 lb 10 oz) |
| Ambient Temperature | -40 °C to +60 °C |
| Approvals | FM Approved, CE (EN298), Swiss Re Acceptable |
| Required Components | Q7800A/B Subbase, Amplifier, ST7800A Purge Card |
The Honeywell RM7830A1029 supports external electrical voltage checks and offers application flexibility with its communication interface capability . Its interchangeable plug-in amplifiers simplify maintenance and service. The module provides robust safety features including interlock checks, dynamic input testing, and tamper-proof timing and logic . Its rugged design withstands a 0.5G vibration environment, making it suitable for demanding industrial settings .
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 85 × 65 × 30 mm |
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