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 RM7890A1015 is a microprocessor-based integrated burner control designed for automatically fired gas, oil, or combination fuel single burner applications. It ensures safe and reliable operation by controlling the burner sequencing, flame supervision, diagnostics, and status indication.
Technical Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 120 Vac (+10% / -15%), 50/60 Hz |
| Power Dissipation | Max. 10 W |
| Ambient Operating Temp | -40°F to +140°F (-40°C to +60°C) |
| Storage Temperature | -40°F to +150°F (-40°C to +66°C) |
| Humidity | 85% RH continuous, non-condensing |
| Dimensions | 127 x 127 x 133 mm |
| Weight | 0.83 kg |
| Maximum Connected Load | 2000 VA, 15A fuse maximum |
| Vibration Resistance | 0.5G environment |
| Certifications | UL listed, CSA certified, FM approved |
Applications
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Industrial boilers
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Commercial heating systems
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Power plant burners
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Gas and oil-fired furnaces
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Single burner systems requiring flame monitoring and safety interlocks
Advantages
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Integrated microprocessor for precise control
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Extensive safety checks including dynamic logic and flame system self-tests
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Retains history and fault data even after power loss
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Modular design with optional communication and display modules
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Field-proven reliability and long service life
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Simple installation and maintenance
Frequently Asked Questions (FAQ)
Q1: What type of burners is RM7890A1015 compatible with?
A1: It is compatible with automatically fired gas, oil, or combination fuel single burner systems.
Q2: Can it operate at low ambient temperatures?
A2: Yes, it operates reliably down to -40°C.
Q3: Does it retain fault history after a power outage?
A3: Yes, its non-volatile memory stores history and status data.
Q4: What is the maximum electrical load it supports?
A4: It supports up to 2000 VA with a maximum 15A fuse.
Q5: Is a remote reset function available?
A5: Yes, remote reset is supported as an optional feature.
Q6: What optional accessories can be used?
A6: Keyboard display modules, network interfaces, remote displays, and annunciators are available.
Q7: How is flame detection achieved?
A7: It uses plug-in flame signal amplifiers and compatible detectors such as UV, IR, or flame rods.
Q8: What mounting options are available?
A8: It can be mounted using Q7800A for panels or Q7800B for wall/burner mounts.
Q9: Is it certified for use in Canada?
A9: Yes, it is CSA certified for Canadian markets.
Q10: What is the weight of the unit?
A10: The RM7890A1015 weighs approximately 0.83 kg.
Recommended Related or Similar Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| RM7890B1013 | Burner Control, similar logic | 127 x 127 x 133 | 0.83 |
| RM7890C1000 | Burner Control, standing pilot | 127 x 127 x 133 | 0.83 |
| EC7890A1029 | Burner Control, 220-240 Vac | 127 x 127 x 133 | 0.83 |
| EC7890B1028 | Burner Control, 220-240 Vac | 127 x 127 x 133 | 0.83 |
| RM7800L1075 | Expanded annunciator model | 127 x 127 x 133 | 0.83 |
| RM7800G1001 | Standard burner controller | 127 x 127 x 133 | 0.83 |
Popular Honeywell Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| RM7800L1075 | Expanded annunciator burner control | 127 x 127 x 133 | 0.83 |
| RM7800G1001 | Burner control, standard version | 127 x 127 x 133 | 0.83 |
| R7847A1033 | Ultraviolet flame amplifier | 127 x 127 x 133 | 0.83 |
| R7861A1026 | Ultraviolet flame amplifier | 127 x 127 x 133 | 0.83 |
| RM7895A1014 | Primary burner controller | 127 x 127 x 133 | 0.83 |
| RM7885A1008 | Programmable relay module | 127 x 127 x 133 | 0.83 |
