Microprocessor-Based Flame Safeguard for Industrial Burners
The Honeywell RM7898A1018 on-off primary control delivers robust burner management for commercial and industrial applications. This microprocessor-based unit provides automatic sequencing, flame supervision, and comprehensive diagnostics. The controller integrates with the Honeywell 7800 SERIES relay module system. It requires a Q7800 subbase for proper installation. The unit supports gas, oil, or combination fuel firing. It also features dynamic self-checking and first-out annunciation for rapid fault identification.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Product Type | On-Off Primary Control |
| Power Supply | 120 Vac (+10%/-15%), 50/60 Hz |
| Power Consumption | 10 W maximum |
| Maximum Connected Load | 2000 VA |
| Flame Detection Types | Rectification, UV scanner, PNR, PNP |
| Operating Temperature | -40°C to +60°C (-40°F to +140°F) |
| Storage Temperature | -40°C to +66°C (-40°F to +150°F) |
| Dimensions | 12.7 × 12.7 × 13.3 cm (5 × 5 × 5.25 in) |
| Weight | Approximately 0.82 kg (1.8 lb) |
| Mounting | Q7800 subbase (required) |
| Safety Certification | SIL 3 Capable |
Diagnostic Intelligence and Safety Features
The Honeywell RM7898A1018 performs dynamic relay testing before each burner cycle. Extended safe-start checks verify all flame detection and safety interlock circuits. Nonvolatile memory retains fault history during power interruptions. First-out annunciation identifies the initial cause of system shutdown events. These diagnostic features minimize downtime and simplify maintenance.
Application Versatility and Integration
The Honeywell RM7898A1018 handles various fuels including gas, oil, or combination firing. The optional Keyboard Display Module enables local programming and status monitoring. The optional Data ControlBus™ Module provides remote communication capabilities. The RM7898A1018 also serves as a reliable replacement for earlier RM7898 models.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 85 × 65 × 30 mm |
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