Intelligent Burner Sequencing for Commercial Heating Systems
The Honeywell R7140L2007 programmer burner control manages the complete startup and shutdown sequences for commercial burners. This microprocessor-based unit provides automatic pilot ignition, flame monitoring, and safety shutdown functions. The controller integrates with the Honeywell 7800 SERIES relay module. It requires a Q7800 subbase for proper installation. The unit supports gas, oil, or combination fuel firing. It also offers dynamic self-checking to ensure reliable operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Product Type | Programmer Burner 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 |
Diagnostics and Safety Intelligence
The Honeywell R7140L2007 performs dynamic relay tests before every burner cycle. Extended safe-start checks verify all safety circuits and flame detection integrity. Nonvolatile memory retains fault history even after power loss. First-out annunciation pinpoints the initial cause of any shutdown event. These diagnostic features simplify troubleshooting and reduce system downtime.
Application Flexibility and System Integration
The Honeywell R7140L2007 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 system communication capabilities. The R7140L2007 also serves as a reliable replacement for earlier R7140 models with enhanced features.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 85 × 65 × 30 mm |
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