Excellent PLC
| Company Information | ||||||||
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Description
Honeywell RM7850A1019 is a microprocessor-based integrated burner control designed for full modulation applications of gas, oil, or combination fuel power burners. It ensures reliable and safe operation through automatic burner sequencing, flame supervision, system diagnostics, and lockout features.
Technical Specifications
| Parameter | Value |
|---|---|
| Power Supply | 120 Vac ±10%, 50/60 Hz |
| Power Dissipation | 10 W (maximum) |
| Maximum Connected Load | 2000 VA |
| Ambient Operating Temp. | -40°C to +60°C (-40°F to +140°F) |
| Storage Temperature | -40°C to +66°C (-40°F to +150°F) |
| Humidity | 85% RH non-condensing |
| Vibration | 0.5G |
| Dimensions | 127 x 127 x 133 mm |
| Weight | 0.73 kg |
Applications
-
Industrial boilers and burners
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Furnaces and ovens
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Power plant combustion systems
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Large heating systems using gas, oil, or mixed fuels
Advantages
-
Advanced safety with dynamic self-check and tamper-resistant logic
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Flexible configuration for diverse burner applications
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Non-volatile memory retains settings during power loss
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First-out fault annunciation for fast troubleshooting
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Optional multilingual display for easy monitoring
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SIL 3 capable for use in safety-critical systems
FAQ
Q1: What is the main function of the RM7850A1019?
A1: It provides automatic sequencing, flame supervision, safety checks, and diagnostics for full modulation burner systems.
Q2: Can this controller be used for oil and gas burners?
A2: Yes, it supports gas, oil, or combination fuel burners.
Q3: What voltage does the RM7850A1019 require?
A3: It operates on 120 Vac ±10%, 50/60 Hz.
Q4: Is it suitable for outdoor installation?
A4: No, it should be installed in a protected panel that meets at least IP40 protection.
Q5: Does it retain data after power loss?
A5: Yes, it has non-volatile memory to retain configuration and fault history.
Q6: What safety standards does it comply with?
A6: It meets SIL 3 in properly designed systems, and complies with EN298 and other international directives.
Q7: How is the system monitored?
A7: Via optional Keyboard Display Module (KDM) or remote interfaces showing status, faults, and diagnostics.
Q8: Can I mount the KDM remotely?
A8: Yes, with approved electrical isolation and appropriate cabling.
Q9: How many ignition attempts are possible?
A9: Depending on configuration, either 1 or 5 ignition attempts.
Q10: What is its maximum load?
A10: The maximum connected load is 2000 VA.
Recommended Related or Similar Models
| Model | Power Supply | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| RM7850A1001 | 120 Vac | 127 x 127 x 133 | 0.73 |
| RM7850A1027 | 120 Vac | 127 x 127 x 133 | 0.73 |
| RM7850A1035 | 120 Vac | 127 x 127 x 133 | 0.73 |
| RM7830A1003 | 120 Vac | 127 x 127 x 133 | 0.73 |
| RM7830A1011 | 120 Vac | 127 x 127 x 133 | 0.73 |
| RM7830A1029 | 120 Vac | 127 x 127 x 133 | 0.73 |
Other Popular Honeywell Models
| Model | Power Supply | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| R4343D1006 | 220 Vac | 105 x 105 x 95 | 0.65 |
| R7247C1007 | 120 Vac | 96 x 96 x 57 | 0.40 |
| S7800A1001 KDM | 13 Vdc | 48 x 96 x 96 | 0.11 |
| EC7830A1033 | 230 Vac | 127 x 127 x 133 | 0.73 |
| EC7850A1080 | 230 Vac | 127 x 127 x 133 | 0.73 |
| R7847A1023 | Flame Amp. | 45 x 75 x 55 | 0.12 |
