Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Description
The Honeywell RM7800L1087 is a microprocessor-based burner control relay module designed for automatic sequencing, flame supervision, system status display, and diagnostics of single-burner gas, oil, or combination fuel applications. It delivers advanced safety and control functions, replacing conventional burner controls.
Product Applications
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Industrial gas and oil-fired burners
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Boilers, furnaces, ovens, and kilns
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Applications requiring SIL3-capable safety instrumentation
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Systems needing Modbus™ communication and extended diagnostics
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Single burner systems in commercial and industrial environments
Product Advantages
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SIL3 capable for high safety integrity
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Advanced diagnostics and fault history logging
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Flame failure response time as fast as 0.8 seconds
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Flexible post purge settings up to 60 minutes
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Robust safety checks and tamper-resistant logic
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Modbus™ interface and local/remote annunciation options
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Nonvolatile memory retains status and history after power loss
Technical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 127 × 127 × 133 mm |
| Weight | 0.83 kg |
| Operating Voltage | 120 VAC ±10%, 50/60 Hz |
| Power Dissipation | Max 10 W (Relay), Max 3 W (Display) |
| Ambient Temperature | -40°C to +60°C operating |
| Humidity | 85% RH non-condensing |
| Mounting Options | Panel, wall, or burner with subbase |
| Flame Failure Response Time | 0.8 to 3.0 seconds (depending on amplifier) |
| Communication | Optional Modbus™ interface |
| Safety Certification | SIL3 capable, UL, CSA, FM approvals |
FAQ
Q1: What fuel types does the RM7800L1087 support?
A1: It supports gas, oil, or combination fuel systems.
Q2: What is the flame failure response time?
A2: Depending on the amplifier, it ranges from 0.8 to 3.0 seconds.
Q3: Can this module communicate with building management systems?
A3: Yes, through the optional Modbus™ communication module.
Q4: What is the maximum adjustable post purge time?
A4: Up to 60 minutes, with 15 seconds as the default setting.
Q5: Is this product suitable for continuous burner operation?
A5: Yes, it is designed for burners with either intermittent or continuous operation.
Q6: Does it provide fault history logging?
A6: Yes, it records the six most recent faults with detailed data.
Q7: What safety certifications does it have?
A7: UL, CSA, FM, and SIL3 capable in proper configurations.
Q8: What is the maximum load it can handle?
A8: The total connected load is up to 2000 VA with 15A fast-blow fuse protection.
Q9: How is the RM7800L1087 mounted?
A9: Using the Q7800 subbase for panel, wall, or burner mounting.
Q10: Does it retain its settings after a power outage?
A10: Yes, it uses nonvolatile memory to retain history and sequence status.
Recommended Related Models (Same Series or Similar)
| Model Number | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| RM7800E1012 | Relay Module, basic model | 127 × 127 × 133 | 0.83 |
| RM7800G1003 | Relay Module, intermittent pilot | 127 × 127 × 133 | 0.83 |
| RM7800M1002 | Relay Module, on/off | 127 × 127 × 133 | 0.83 |
| RM7840L1075 | Burner Control, programmable | 127 × 127 × 133 | 0.83 |
| RM7890A1015 | Basic Programmer Module | 127 × 127 × 133 | 0.83 |
| RM7895A1014 | Integrated Burner Controller | 127 × 127 × 133 | 0.83 |
Popular Honeywell Models
| Model Number | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| R7910A1005 | Integrated Burner Control | 127 × 127 × 133 | 0.83 |
| R7886A1020 | Flame Amplifier, UV Self-check | 127 × 127 × 133 | 0.83 |
| R7861A1022 | Flame Amplifier, Dynamic Check | 127 × 127 × 133 | 0.83 |
| R7847A1025 | Flame Amplifier, Rectification | 127 × 127 × 133 | 0.83 |
| R7852A1008 | Infrared Flame Amplifier | 127 × 127 × 133 | 0.83 |
| R7849A1033 | Flame Amplifier, UV Minipeeper | 127 × 127 × 133 | 0.83 |
