This burner control manages ignition sequences and flame monitoring for industrial burners. It provides safety shutdown functions for gas, oil, or dual-fuel systems. You can install this unit directly into a standard burner control panel. The device meets UL, FM, and CSA safety standards for combustion equipment.
Technical Specifications & Key Parameters
| Parameter | Detail |
|---|---|
| Product Model | Honeywell RM7840E1016 |
| Category | Burner Control (Flame Safeguard) |
| Dimensions (H x W x D) | 122 mm x 97 mm x 76 mm |
| Weight | 0.45 kg (0.99 lbs) |
| Flame Sensing Method | Rectification (flame rod) or UV scanner |
| Pre-Ignition Time | 15 seconds fixed |
| Ignition Trial Time | 10 seconds for pilot, 15 seconds for main |
| Flame Failure Response | 2 seconds maximum (safety shutdown) |
| Purge Time | 30 seconds (fixed, non-adjustable) |
| Interlock Inputs | High gas pressure, low gas pressure, air flow, high water |
| Output Relays | Pilot valve, main valve, ignition transformer, alarm |
| Contact Ratings | 5 A at 120 V AC (resistive load) |
| Energy Storage | 1000 µF capacitor (holds fault memory for 5 seconds) |
| Operating Voltage | 120 V AC, 50/60 Hz (±15%) |
| Current Draw | 0.4 A at 120 V AC |
| Terminal Type | 12-pin plug-in socket (industry standard) |
| Status LEDs | Power, flame, alarm, purge, ignition |
| Environmental Rating | NEMA 1 (indoor use only) |
| Approvals | UL 60730, FM Class 7610, CSA C22.2 |
Detailed Feature Overview
Honeywell RM7840E1016 controls single-burner combustion systems safely. It sequences the purge, ignition, flame proving, and run states automatically. The device accepts either flame rod rectification or UV scanner inputs. This flexibility suits natural gas, propane, or light oil applications. A 2-second flame failure response provides maximum safety for personnel and equipment.
The control includes fixed timing parameters for consistent operation. Pre-ignition lasts 15 seconds to ensure proper air purge. The pilot trial lasts 10 seconds before proving flame. The main trial extends to 15 seconds for stable combustion. Four safety interlock inputs prevent startup when conditions are unsafe. For example, low air flow or high gas pressure stops the sequence immediately.
Output Relays and Diagnostics
Four output relays control the pilot valve and main fuel valve. An ignition transformer relay powers the spark generator during trials. The alarm relay activates for any lockout or fault condition. Five status LEDs provide clear visual feedback. The FLAME LED illuminates when the sensor detects a stable fire. The ALARM LED lights during lockout conditions.
Installation and Environmental Limits
This burner control mounts on standard 35 mm DIN rail or panel. It weighs 0.45 kg for simple handling during replacement. The 12-pin socket accepts field wiring from sensors and valves. Operating temperature ranges from -40°C to +60°C for extreme environments. Keep humidity below 85% without condensation for long life. A 1000 µF capacitor stores fault codes for 5 seconds after power loss.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 85 × 65 × 30 mm |
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