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Honeywell RM7800M1037 Burner Control Overview
The Honeywell RM7800M1037 is a microprocessor-based integrated burner control designed for single burner applications with automatic sequencing, flame supervision, diagnostics, and safety interlocks. It supports gas, oil, or combination fuel burners and is SIL3 capable in the right configuration.
Applications
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Industrial boilers and burners
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Automatic gas and oil-fired burners
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Single burner systems requiring enhanced safety and diagnostics
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Systems requiring SIL3 compliance in safety instrumented loops
Advantages
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Microprocessor-based safety and control logic for reliable operation
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Advanced diagnostics and first-out annunciation simplify troubleshooting
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Supports Modbus and remote display capabilities
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Non-volatile memory retains history and status through power loss
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Flexible configuration with interchangeable amplifiers and modules
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Compact design with standardized mounting and wiring subbases
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 120 Vac (+10%/-15%), 50/60 Hz |
| Power Dissipation | 10 W (Relay Module), 3 W (Display) |
| Dimensions | 127 x 127 x 133 mm |
| Weight | 0.83 kg |
| Ambient Operating Temperature | -40°C to +60°C |
| Storage Temperature | -40°C to +66°C |
| Humidity | 85% RH continuous, non-condensing |
| Flame Failure Response Time | 0.8–3.0 seconds (depends on amplifier) |
| Mounting | Panel, wall, or burner mount |
| Compliance | UL, CSA, FM approved, SIL3 capable |
FAQ
Q1: What is the main function of the RM7800M1037?
A1: It provides automatic burner sequencing, flame supervision, diagnostics, and safety interlocks for gas, oil, or combination burners.
Q2: What power supply does it require?
A2: The unit operates on 120 Vac, 50 or 60 Hz.
Q3: Is the RM7800M1037 suitable for SIL3 safety applications?
A3: Yes, it is SIL3 capable when used with the appropriate configuration and flame detection systems.
Q4: Can it retain operational history after a power loss?
A4: Yes, it has non-volatile memory to retain status and fault history.
Q5: What are the mounting options available?
A5: It can be panel-mounted, wall-mounted, or mounted directly to the burner using a suitable subbase.
Q6: Does it support communication protocols?
A6: Yes, it supports Modbus communication and optional remote display interfaces.
Q7: How does it help with fault diagnostics?
A7: The unit provides first-out annunciation, fault history, and real-time diagnostics through its display or remote interfaces.
Q8: What is the flame failure response time?
A8: It ranges from 0.8 to 3.0 seconds, depending on the flame amplifier used.
Q9: What kind of environments can it operate in?
A9: It is designed to operate in environments from -40°C to +60°C and up to 85% humidity.
Q10: Is it compatible with both gas and oil burners?
A10: Yes, it supports gas, oil, or combination fuel burners.
Recommended Related Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| RM7800E1012 | Relay Module for modulating burners | 127 x 127 x 133 | 0.83 |
| RM7800G1003 | Relay Module for on-off control | 127 x 127 x 133 | 0.83 |
| RM7800L1079 | Relay Module with VPS capability | 127 x 127 x 133 | 0.83 |
| RM7800L1087 | Relay Module with VPS, post purge | 127 x 127 x 133 | 0.83 |
| RM7840G1024 | Relay Module for gas-only burners | 127 x 127 x 133 | 0.83 |
| RM7890A1015 | Basic Relay Module for gas burners | 127 x 127 x 133 | 0.83 |
Popular Honeywell Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| UDC3200 | Universal Digital Controller | 102 x 102 x 100 | 0.5 |
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| STT750 | High-Performance Temp Transmitter | 83 x 83 x 55 | 0.3 |
| T775M2006 | Electronic Standalone Controller | 152 x 127 x 50 | 0.7 |
